Convert soc-camera core to a platform driver. With this approach I2C
devices are no longer statically registered in platform code, instead they
are registered dynamically by the soc-camera core, when a match with a
host driver is found. With this patch all platforms and all soc-camera
device drivers are converted too. This is a preparatory step for the
v4l-subdev conversion.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
---
This is more or less the final version of the first step of the
v4l2-subdev conversion, hence, all affected driver authors / platform
maintainers are encouraged to review and test. I have eliminated
soc_camera_device_register() and soc_camera_device_unregister() exported
functions, the only remaining connection between soc-camera device driver
and the core is the soc_camera_video_start() and soc_camera_video_stop()
pair of functions, which will also disappear when we switch to loading I2C
drivers automatically.
Enjoy:-)
Guennadi
diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c
index 6bfd29a..00ce1eb 100644
--- a/arch/arm/mach-mx3/pcm037.c
+++ b/arch/arm/mach-mx3/pcm037.c
@@ -241,9 +241,17 @@ static int pcm037_camera_power(struct device *dev, int on)
return 0;
}
+static struct i2c_board_info pcm037_i2c_2_devices[] = {
+ {
+ I2C_BOARD_INFO("mt9t031", 0x5d),
+ },
+};
+
static struct soc_camera_link iclink = {
- .bus_id = 0, /* Must match with the camera ID */
- .power = pcm037_camera_power,
+ .bus_id = 0, /* Must match with the camera ID */
+ .power = pcm037_camera_power,
+ .board_info = &pcm037_i2c_2_devices[0],
+ .i2c_adapter_id = 2,
};
static struct i2c_board_info pcm037_i2c_devices[] = {
@@ -256,9 +264,10 @@ static struct i2c_board_info pcm037_i2c_devices[] = {
}
};
-static struct i2c_board_info pcm037_i2c_2_devices[] = {
- {
- I2C_BOARD_INFO("mt9t031", 0x5d),
+static struct platform_device pcm037_camera = {
+ .name = "soc-camera-pdrv",
+ .id = 0,
+ .dev = {
.platform_data = &iclink,
},
};
@@ -338,6 +347,9 @@ static struct platform_device *devices[] __initdata = {
&pcm037_flash,
&pcm037_eth,
&pcm037_sram_device,
+#if defined(CONFIG_I2C_IMX) || defined(CONFIG_I2C_IMX_MODULE)
+ &pcm037_camera,
+#endif
};
static struct ipu_platform_data mx3_ipu_data = {
@@ -395,9 +407,6 @@ static void __init mxc_board_init(void)
i2c_register_board_info(1, pcm037_i2c_devices,
ARRAY_SIZE(pcm037_i2c_devices));
- i2c_register_board_info(2, pcm037_i2c_2_devices,
- ARRAY_SIZE(pcm037_i2c_2_devices));
-
mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data);
mxc_register_device(&mxc_i2c_device2, &pcm037_i2c_2_data);
#endif
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index 920dfb8..d4eb0c7 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -847,14 +847,23 @@ static int em_x270_sensor_power(struct device *dev, int on)
return 0;
}
-static struct soc_camera_link iclink = {
- .bus_id = 0,
- .power = em_x270_sensor_power,
-};
-
static struct i2c_board_info em_x270_i2c_cam_info[] = {
{
I2C_BOARD_INFO("mt9m111", 0x48),
+ },
+};
+
+static struct soc_camera_link iclink = {
+ .bus_id = 0,
+ .power = em_x270_sensor_power,
+ .board_info = &em_x270_i2c_cam_info[0],
+ .i2c_adapter_id = 0,
+};
+
+static struct platform_device em_x270_camera = {
+ .name = "soc-camera-pdrv",
+ .id = -1,
+ .dev = {
.platform_data = &iclink,
},
};
@@ -866,8 +875,8 @@ static struct i2c_pxa_platform_data em_x270_i2c_info = {
static void __init em_x270_init_camera(void)
{
pxa_set_i2c_info(&em_x270_i2c_info);
- i2c_register_board_info(0, ARRAY_AND_SIZE(em_x270_i2c_cam_info));
pxa_set_camera_info(&em_x270_camera_platform_data);
+ platform_device_register(&em_x270_camera);
}
#else
static inline void em_x270_init_camera(void) {}
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index 97c93a7..5c8aabf 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -724,19 +724,19 @@ struct pxacamera_platform_data mioa701_pxacamera_platform_data = {
.mclk_10khz = 5000,
};
-static struct soc_camera_link iclink = {
- .bus_id = 0, /* Must match id in pxa27x_device_camera in device.c */
-};
-
/* Board I2C devices. */
static struct i2c_board_info __initdata mioa701_i2c_devices[] = {
{
- /* Must initialize before the camera(s) */
I2C_BOARD_INFO("mt9m111", 0x5d),
- .platform_data = &iclink,
},
};
+static struct soc_camera_link iclink = {
+ .bus_id = 0, /* Match id in pxa27x_device_camera in device.c */
+ .board_info = &mioa701_i2c_devices[0],
+ .i2c_adapter_id = 0,
+};
+
struct i2c_pxa_platform_data i2c_pdata = {
.fast_mode = 1,
};
@@ -754,20 +754,21 @@ static struct platform_device var = { \
.platform_data = pdata, \
.parent = tparent, \
}, \
-};
+}
#define MIO_SIMPLE_DEV(var, strname, pdata) \
MIO_PARENT_DEV(var, strname, NULL, pdata)
-MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys", &mioa701_gpio_keys_data)
+MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys", &mioa701_gpio_keys_data);
MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight", &pxa27x_device_pwm0.dev,
&mioa701_backlight_data);
-MIO_SIMPLE_DEV(mioa701_led, "leds-gpio", &gpio_led_info)
-MIO_SIMPLE_DEV(pxa2xx_pcm, "pxa2xx-pcm", NULL)
-MIO_SIMPLE_DEV(pxa2xx_ac97, "pxa2xx-ac97", NULL)
-MIO_PARENT_DEV(mio_wm9713_codec, "wm9713-codec", &pxa2xx_ac97.dev, NULL)
-MIO_SIMPLE_DEV(mioa701_sound, "mioa701-wm9713", NULL)
-MIO_SIMPLE_DEV(mioa701_board, "mioa701-board", NULL)
+MIO_SIMPLE_DEV(mioa701_led, "leds-gpio", &gpio_led_info);
+MIO_SIMPLE_DEV(pxa2xx_pcm, "pxa2xx-pcm", NULL);
+MIO_SIMPLE_DEV(pxa2xx_ac97, "pxa2xx-ac97", NULL);
+MIO_PARENT_DEV(mio_wm9713_codec, "wm9713-codec", &pxa2xx_ac97.dev, NULL);
+MIO_SIMPLE_DEV(mioa701_sound, "mioa701-wm9713", NULL);
+MIO_SIMPLE_DEV(mioa701_board, "mioa701-board", NULL);
MIO_SIMPLE_DEV(gpio_vbus, "gpio-vbus", &gpio_vbus_data);
+MIO_SIMPLE_DEV(mioa701_camera, "soc-camera-pdrv",&&iclink[0]);
static struct platform_device *devices[] __initdata = {
&mioa701_gpio_keys,
@@ -781,6 +782,7 @@ static struct platform_device *devices[] __initdata = {
&strataflash,
&gpio_vbus,
&mioa701_board,
+ &mioa701_camera,
};
static void mioa701_machine_exit(void);
@@ -825,7 +827,6 @@ static void __init mioa701_machine_init(void)
pxa_set_i2c_info(&i2c_pdata);
pxa_set_camera_info(&mioa701_pxacamera_platform_data);
- i2c_register_board_info(0, ARRAY_AND_SIZE(mioa701_i2c_devices));
}
static void mioa701_machine_exit(void)
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 6112740..916db23 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -419,24 +419,52 @@ static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link)
return SOCAM_DATAWIDTH_10;
}
-static struct soc_camera_link iclink = {
- .bus_id = 0, /* Must match with the camera ID above */
- .query_bus_param = pcm990_camera_query_bus_param,
- .set_bus_param = pcm990_camera_set_bus_param,
-};
-
/* Board I2C devices. */
static struct i2c_board_info __initdata pcm990_i2c_devices[] = {
{
/* Must initialize before the camera(s) */
I2C_BOARD_INFO("pca9536", 0x41),
.platform_data = &pca9536_data,
- }, {
+ },
+};
+
+static struct i2c_board_info __initdata pcm990_camera_i2c[] = {
+ {
I2C_BOARD_INFO("mt9v022", 0x48),
- .platform_data = &iclink, /* With extender */
}, {
I2C_BOARD_INFO("mt9m001", 0x5d),
- .platform_data = &iclink, /* With extender */
+ },
+};
+
+static struct soc_camera_link iclink[] = {
+ {
+ .bus_id = 0, /* Must match with the camera ID */
+ .board_info = &pcm990_camera_i2c[0],
+ .i2c_adapter_id = 0,
+ .query_bus_param = pcm990_camera_query_bus_param,
+ .set_bus_param = pcm990_camera_set_bus_param,
+ }, {
+ .bus_id = 0, /* Must match with the camera ID */
+ .board_info = &pcm990_camera_i2c[1],
+ .i2c_adapter_id = 0,
+ .query_bus_param = pcm990_camera_query_bus_param,
+ .set_bus_param = pcm990_camera_set_bus_param,
+ },
+};
+
+static struct platform_device pcm990_camera[] = {
+ {
+ .name = "soc-camera-pdrv",
+ .id = 0,
+ .dev = {
+ .platform_data = &iclink[0],
+ },
+ }, {
+ .name = "soc-camera-pdrv",
+ .id = 1,
+ .dev = {
+ .platform_data = &iclink[1],
+ },
},
};
#endif /* CONFIG_VIDEO_PXA27x ||CONFIG_VIDEO_PXA27x_MODULE */
@@ -492,6 +520,9 @@ void __init pcm990_baseboard_init(void)
pxa_set_camera_info(&pcm990_pxacamera_platform_data);
i2c_register_board_info(0, ARRAY_AND_SIZE(pcm990_i2c_devices));
+
+ platform_device_register(&pcm990_camera[0]);
+ platform_device_register(&pcm990_camera[1]);
#endif
printk(KERN_INFO "PCM-990 Evaluation baseboard initialized\n");
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index e27655b..8b2538a 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -228,12 +228,6 @@ static struct platform_device lcdc_device = {
},
};
-static void camera_power(int val)
-{
- gpio_set_value(GPIO_PTZ5, val); /* RST_CAM/RSTB */
- mdelay(10);
-}
-
#ifdef CONFIG_I2C
static unsigned char camera_ncm03j_magic[] =
{
@@ -255,23 +249,28 @@ static unsigned char camera_ncm03j_magic[] =
0x63, 0xD4, 0x64, 0xEA, 0xD6, 0x0F,
};
-static int camera_set_capture(struct soc_camera_platform_info *info,
- int enable)
+static int ap325rxa_camera_power(struct device *dev, int on)
+{
+ gpio_set_value(GPIO_PTZ5, on); /* RST_CAM/RSTB */
+ mdelay(10);
+ return 0;
+}
+
+static int ap325rxa_camera_set_capture(struct soc_camera_platform_info *info,
+ int enable)
{
- struct i2c_adapter *a = i2c_get_adapter(0);
+ struct i2c_adapter *a = i2c_get_adapter(info->link.i2c_adapter_id);
struct i2c_msg msg;
int ret = 0;
int i;
-
- camera_power(0);
+
if (!enable)
- return 0; /* no disable for now */
+ return ap325rxa_camera_power(NULL, 0); /* no disable for now */
- camera_power(1);
for (i = 0; i < ARRAY_SIZE(camera_ncm03j_magic); i += 2) {
u_int8_t buf[8];
- msg.addr = 0x6e;
+ msg.addr = info->link.board_info->addr;
msg.buf = buf;
msg.len = 2;
msg.flags = 0;
@@ -285,8 +284,11 @@ static int camera_set_capture(struct soc_camera_platform_info *info,
return ret;
}
+static struct i2c_board_info __initdata ap325rxa_camera_i2c = {
+ I2C_BOARD_INFO("soc_camera_platform", 0x6e),
+};
+
static struct soc_camera_platform_info camera_info = {
- .iface = 0,
.format_name = "UYVY",
.format_depth = 16,
.format = {
@@ -296,22 +298,29 @@ static struct soc_camera_platform_info camera_info = {
.height = 480,
},
.bus_param = SOCAM_PCLK_SAMPLE_RISING | SOCAM_HSYNC_ACTIVE_HIGH |
- SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_MASTER | SOCAM_DATAWIDTH_8,
- .set_capture = camera_set_capture,
+ SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_MASTER | SOCAM_DATAWIDTH_8,
+ .set_capture = ap325rxa_camera_set_capture,
+ .link = {
+ .bus_id = 0,
+ .board_info = &ap325rxa_camera_i2c,
+ .i2c_adapter_id = 0,
+ .power = ap325rxa_camera_power,
+ },
};
-static struct platform_device camera_device = {
- .name = "soc_camera_platform",
- .dev = {
- .platform_data = &camera_info,
+static struct platform_device ap325rxa_camera = {
+ .name = "soc-camera-pdrv",
+ .id = -1,
+ .dev = {
+ .platform_data = &camera_info.link,
},
};
#endif /* CONFIG_I2C */
static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
.flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_HSYNC_ACTIVE_HIGH |
- SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_HIGH | SOCAM_MASTER |
- SOCAM_DATAWIDTH_8,
+ SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_DATA_ACTIVE_HIGH |
+ SOCAM_MASTER | SOCAM_DATAWIDTH_8,
};
static struct resource ceu_resources[] = {
@@ -360,7 +369,7 @@ static struct platform_device *ap325rxa_devices[] __initdata = {
&lcdc_device,
&ceu_device,
#ifdef CONFIG_I2C
- &camera_device,
+ &ap325rxa_camera,
#endif
&nand_flash_device,
&sdcard_cn3_device,
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 4fd6a72..b8cb246 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -383,21 +383,6 @@ static struct platform_device migor_ceu_device = {
},
};
-static struct ov772x_camera_info ov7725_info = {
- .buswidth = SOCAM_DATAWIDTH_8,
- .link = {
- .power = ov7725_power,
- },
-};
-
-static struct tw9910_video_info tw9910_info = {
- .buswidth = SOCAM_DATAWIDTH_8,
- .mpout = TW9910_MPO_FIELD,
- .link = {
- .power = tw9910_power,
- }
-};
-
struct spi_gpio_platform_data sdcard_cn9_platform_data = {
.sck = GPIO_PTD0,
.mosi = GPIO_PTD1,
@@ -412,16 +397,6 @@ static struct platform_device sdcard_cn9_device = {
},
};
-static struct platform_device *migor_devices[] __initdata = {
- &smc91x_eth_device,
- &sh_keysc_device,
- &migor_lcdc_device,
- &migor_ceu_device,
- &migor_nor_flash_device,
- &migor_nand_flash_device,
- &sdcard_cn9_device,
-};
-
static struct i2c_board_info migor_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372b", 0x32),
@@ -430,16 +405,64 @@ static struct i2c_board_info migor_i2c_devices[] = {
I2C_BOARD_INFO("migor_ts", 0x51),
.irq = 38, /* IRQ6 */
},
+};
+
+static struct i2c_board_info migor_camera_i2c[] = {
{
I2C_BOARD_INFO("ov772x", 0x21),
- .platform_data = &ov7725_info,
},
{
I2C_BOARD_INFO("tw9910", 0x45),
- .platform_data = &tw9910_info,
},
};
+static struct ov772x_camera_info ov7725_info = {
+ .buswidth = SOCAM_DATAWIDTH_8,
+ .link = {
+ .power = ov7725_power,
+ .board_info = &migor_camera_i2c[0],
+ .i2c_adapter_id = 0,
+ },
+};
+
+static struct tw9910_video_info tw9910_info = {
+ .buswidth = SOCAM_DATAWIDTH_8,
+ .mpout = TW9910_MPO_FIELD,
+ .link = {
+ .power = tw9910_power,
+ .board_info = &migor_camera_i2c[1],
+ .i2c_adapter_id = 0,
+ }
+};
+
+static struct platform_device migor_camera[] = {
+ {
+ .name = "soc-camera-pdrv",
+ .id = 0,
+ .dev = {
+ .platform_data = &ov7725_info.link,
+ },
+ }, {
+ .name = "soc-camera-pdrv",
+ .id = 1,
+ .dev = {
+ .platform_data = &tw9910_info.link,
+ },
+ },
+};
+
+static struct platform_device *migor_devices[] __initdata = {
+ &smc91x_eth_device,
+ &sh_keysc_device,
+ &migor_lcdc_device,
+ &migor_ceu_device,
+ &migor_nor_flash_device,
+ &migor_nand_flash_device,
+ &sdcard_cn9_device,
+ &migor_camera[0],
+ &migor_camera[1],
+};
+
static struct spi_board_info migor_spi_devices[] = {
{
.modalias = "mmc_spi",
diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c
index 684f62f..11fb126 100644
--- a/drivers/media/video/mt9m001.c
+++ b/drivers/media/video/mt9m001.c
@@ -69,16 +69,14 @@ static const struct soc_camera_data_format mt9m001_monochrome_formats[] = {
};
struct mt9m001 {
- struct i2c_client *client;
- struct soc_camera_device icd;
+ struct soc_camera_device *icd;
int model; /* V4L2_IDENT_MT9M001* codes from v4l2-chip-ident.h */
unsigned char autoexposure;
};
static int reg_read(struct soc_camera_device *icd, const u8 reg)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct i2c_client *client = mt9m001->client;
+ struct i2c_client *client = to_i2c_client(icd->control);
s32 data = i2c_smbus_read_word_data(client, reg);
return data < 0 ? data : swab16(data);
}
@@ -86,8 +84,8 @@ static int reg_read(struct soc_camera_device *icd, const u8 reg)
static int reg_write(struct soc_camera_device *icd, const u8 reg,
const u16 data)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- return i2c_smbus_write_word_data(mt9m001->client, reg, swab16(data));
+ struct i2c_client *client = to_i2c_client(icd->control);
+ return i2c_smbus_write_word_data(client, reg, swab16(data));
}
static int reg_set(struct soc_camera_device *icd, const u8 reg,
@@ -114,14 +112,14 @@ static int reg_clear(struct soc_camera_device *icd, const u8 reg,
static int mt9m001_init(struct soc_camera_device *icd)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret;
dev_dbg(icd->vdev->parent, "%s\n", __func__);
if (icl->power) {
- ret = icl->power(&mt9m001->client->dev, 1);
+ ret = icl->power(&client->dev, 1);
if (ret < 0) {
dev_err(icd->vdev->parent,
"Platform failed to power-on the camera.\n");
@@ -131,7 +129,7 @@ static int mt9m001_init(struct soc_camera_device *icd)
/* The camera could have been already on, we reset it additionally */
if (icl->reset)
- ret = icl->reset(&mt9m001->client->dev);
+ ret = icl->reset(&client->dev);
else
ret = -ENODEV;
@@ -150,14 +148,14 @@ static int mt9m001_init(struct soc_camera_device *icd)
static int mt9m001_release(struct soc_camera_device *icd)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
/* Disable the chip */
reg_write(icd, MT9M001_OUTPUT_CONTROL, 0);
if (icl->power)
- icl->power(&mt9m001->client->dev, 0);
+ icl->power(&client->dev, 0);
return 0;
}
@@ -181,8 +179,7 @@ static int mt9m001_stop_capture(struct soc_camera_device *icd)
static int mt9m001_set_bus_param(struct soc_camera_device *icd,
unsigned long flags)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
unsigned long width_flag = flags & SOCAM_DATAWIDTH_MASK;
/* Only one width bit may be set */
@@ -204,8 +201,7 @@ static int mt9m001_set_bus_param(struct soc_camera_device *icd,
static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
/* MT9M001 has all capture_format parameters fixed */
unsigned long flags = SOCAM_PCLK_SAMPLE_FALLING |
SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
@@ -222,7 +218,8 @@ static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd)
static int mt9m001_set_crop(struct soc_camera_device *icd,
struct v4l2_rect *rect)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m001 *mt9m001 = i2c_get_clientdata(client);
int ret;
const u16 hblank = 9, vblank = 25;
@@ -294,12 +291,13 @@ static int mt9m001_try_fmt(struct soc_camera_device *icd,
static int mt9m001_get_chip_id(struct soc_camera_device *icd,
struct v4l2_dbg_chip_ident *id)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m001 *mt9m001 = i2c_get_clientdata(client);
if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
return -EINVAL;
- if (id->match.addr != mt9m001->client->addr)
+ if (id->match.addr != client->addr)
return -ENODEV;
id->ident = mt9m001->model;
@@ -312,12 +310,12 @@ static int mt9m001_get_chip_id(struct soc_camera_device *icd,
static int mt9m001_get_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
- if (reg->match.addr != mt9m001->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
reg->size = 2;
@@ -332,12 +330,12 @@ static int mt9m001_get_register(struct soc_camera_device *icd,
static int mt9m001_set_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
- if (reg->match.addr != mt9m001->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
if (reg_write(icd, reg->reg, reg->val) < 0)
@@ -392,8 +390,6 @@ static int mt9m001_set_control(struct soc_camera_device *, struct v4l2_control *
static struct soc_camera_ops mt9m001_ops = {
.owner = THIS_MODULE,
- .probe = mt9m001_video_probe,
- .remove = mt9m001_video_remove,
.init = mt9m001_init,
.release = mt9m001_release,
.start_capture = mt9m001_start_capture,
@@ -416,7 +412,8 @@ static struct soc_camera_ops mt9m001_ops = {
static int mt9m001_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m001 *mt9m001 = i2c_get_clientdata(client);
int data;
switch (ctrl->id) {
@@ -435,7 +432,8 @@ static int mt9m001_get_control(struct soc_camera_device *icd, struct v4l2_contro
static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_control *ctrl)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m001 *mt9m001 = i2c_get_clientdata(client);
const struct v4l2_queryctrl *qctrl;
int data;
@@ -529,8 +527,9 @@ static int mt9m001_set_control(struct soc_camera_device *icd, struct v4l2_contro
* this wasn't our capture interface, so, we wait for the right one */
static int mt9m001_video_probe(struct soc_camera_device *icd)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
- struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m001 *mt9m001 = i2c_get_clientdata(client);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
s32 data;
int ret;
unsigned long flags;
@@ -541,6 +540,11 @@ static int mt9m001_video_probe(struct soc_camera_device *icd)
to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
return -ENODEV;
+ /* Switch master clock on */
+ ret = soc_camera_video_start(icd);
+ if (ret)
+ return ret;
+
/* Enable the chip */
data = reg_write(icd, MT9M001_CHIP_ENABLE, 1);
dev_dbg(&icd->dev, "write: %d\n", data);
@@ -548,6 +552,8 @@ static int mt9m001_video_probe(struct soc_camera_device *icd)
/* Read out the chip version register */
data = reg_read(icd, MT9M001_CHIP_VERSION);
+ soc_camera_video_stop(icd);
+
/* must be 0x8411 or 0x8421 for colour sensor and 8431 for bw */
switch (data) {
case 0x8411:
@@ -560,10 +566,9 @@ static int mt9m001_video_probe(struct soc_camera_device *icd)
icd->formats = mt9m001_monochrome_formats;
break;
default:
- ret = -ENODEV;
dev_err(&icd->dev,
"No MT9M001 chip detected, register read %x\n", data);
- goto ei2c;
+ return -ENODEV;
}
icd->num_formats = 0;
@@ -589,36 +594,33 @@ static int mt9m001_video_probe(struct soc_camera_device *icd)
dev_info(&icd->dev, "Detected a MT9M001 chip ID %x (%s)\n", data,
data == 0x8431 ? "C12STM" : "C12ST");
- /* Now that we know the model, we can start video */
- ret = soc_camera_video_start(icd);
- if (ret)
- goto eisis;
-
return 0;
-
-eisis:
-ei2c:
- return ret;
}
static void mt9m001_video_remove(struct soc_camera_device *icd)
{
- struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
- dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m001->client->addr,
+ dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", client->addr,
icd->dev.parent, icd->vdev);
- soc_camera_video_stop(icd);
+ icd->ops = NULL;
}
static int mt9m001_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct mt9m001 *mt9m001;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct soc_camera_link *icl;
int ret;
+ if (!icd) {
+ dev_err(&client->dev, "MT9M001: missing soc-camera data!\n");
+ return -EINVAL;
+ }
+
+ icl = dev_get_drvdata(&icd->dev);
if (!icl) {
dev_err(&client->dev, "MT9M001 driver needs platform data\n");
return -EINVAL;
@@ -634,13 +636,11 @@ static int mt9m001_probe(struct i2c_client *client,
if (!mt9m001)
return -ENOMEM;
- mt9m001->client = client;
+ mt9m001->icd = icd;
i2c_set_clientdata(client, mt9m001);
/* Second stage probe - when a capture adapter is there */
- icd = &mt9m001->icd;
icd->ops = &mt9m001_ops;
- icd->control = &client->dev;
icd->x_min = 20;
icd->y_min = 12;
icd->x_current = 20;
@@ -650,19 +650,16 @@ static int mt9m001_probe(struct i2c_client *client,
icd->height_min = 32;
icd->height_max = 1024;
icd->y_skip_top = 1;
- icd->iface = icl->bus_id;
/* Simulated autoexposure. If enabled, we calculate shutter width
* ourselves in the driver based on vertical blanking and frame width */
mt9m001->autoexposure = 1;
- ret = soc_camera_device_register(icd);
- if (ret)
- goto eisdr;
-
- return 0;
+ ret = mt9m001_video_probe(icd);
+ if (ret) {
+ i2c_set_clientdata(client, NULL);
+ kfree(mt9m001);
+ }
-eisdr:
- kfree(mt9m001);
return ret;
}
@@ -670,7 +667,9 @@ static int mt9m001_remove(struct i2c_client *client)
{
struct mt9m001 *mt9m001 = i2c_get_clientdata(client);
- soc_camera_device_unregister(&mt9m001->icd);
+ mt9m001_video_remove(mt9m001->icd);
+ i2c_set_clientdata(client, NULL);
+ client->driver = NULL;
kfree(mt9m001);
return 0;
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index cdd1ddb..425aec2 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -148,8 +148,7 @@ enum mt9m111_context {
};
struct mt9m111 {
- struct i2c_client *client;
- struct soc_camera_device icd;
+ struct soc_camera_device *icd;
int model; /* V4L2_IDENT_MT9M11x* codes from v4l2-chip-ident.h */
enum mt9m111_context context;
struct v4l2_rect rect;
@@ -186,8 +185,7 @@ static int reg_page_map_set(struct i2c_client *client, const u16 reg)
static int mt9m111_reg_read(struct soc_camera_device *icd, const u16 reg)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
- struct i2c_client *client = mt9m111->client;
+ struct i2c_client *client = to_i2c_client(icd->control);
int ret;
ret = reg_page_map_set(client, reg);
@@ -201,13 +199,12 @@ static int mt9m111_reg_read(struct soc_camera_device *icd, const u16 reg)
static int mt9m111_reg_write(struct soc_camera_device *icd, const u16 reg,
const u16 data)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
- struct i2c_client *client = mt9m111->client;
+ struct i2c_client *client = to_i2c_client(icd->control);
int ret;
ret = reg_page_map_set(client, reg);
if (!ret)
- ret = i2c_smbus_write_word_data(mt9m111->client, (reg & 0xff),
+ ret = i2c_smbus_write_word_data(client, reg & 0xff,
swab16(data));
dev_dbg(&icd->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
return ret;
@@ -252,7 +249,8 @@ static int mt9m111_set_context(struct soc_camera_device *icd,
static int mt9m111_setup_rect(struct soc_camera_device *icd,
struct v4l2_rect *rect)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret, is_raw_format;
int width = rect->width;
int height = rect->height;
@@ -316,7 +314,8 @@ static int mt9m111_setfmt_bayer10(struct soc_camera_device *icd)
static int mt9m111_setfmt_rgb565(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int val = 0;
if (mt9m111->swap_rgb_red_blue)
@@ -330,7 +329,8 @@ static int mt9m111_setfmt_rgb565(struct soc_camera_device *icd)
static int mt9m111_setfmt_rgb555(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int val = 0;
if (mt9m111->swap_rgb_red_blue)
@@ -344,7 +344,8 @@ static int mt9m111_setfmt_rgb555(struct soc_camera_device *icd)
static int mt9m111_setfmt_yuv(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int val = 0;
if (mt9m111->swap_yuv_cb_cr)
@@ -357,12 +358,13 @@ static int mt9m111_setfmt_yuv(struct soc_camera_device *icd)
static int mt9m111_enable(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
- struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
if (icl->power) {
- ret = icl->power(&mt9m111->client->dev, 1);
+ ret = icl->power(&client->dev, 1);
if (ret < 0) {
dev_err(icd->vdev->parent,
"Platform failed to power-on the camera.\n");
@@ -378,8 +380,9 @@ static int mt9m111_enable(struct soc_camera_device *icd)
static int mt9m111_disable(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
- struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
@@ -387,15 +390,15 @@ static int mt9m111_disable(struct soc_camera_device *icd)
mt9m111->powered = 0;
if (icl->power)
- icl->power(&mt9m111->client->dev, 0);
+ icl->power(&client->dev, 0);
return ret;
}
static int mt9m111_reset(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
- struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret;
ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
@@ -406,7 +409,7 @@ static int mt9m111_reset(struct soc_camera_device *icd)
| MT9M111_RESET_RESET_SOC);
if (icl->reset)
- icl->reset(&mt9m111->client->dev);
+ icl->reset(&client->dev);
return ret;
}
@@ -423,8 +426,7 @@ static int mt9m111_stop_capture(struct soc_camera_device *icd)
static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
- struct soc_camera_link *icl = mt9m111->client->dev.platform_data;
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
unsigned long flags = SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING |
SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8;
@@ -440,7 +442,8 @@ static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
static int mt9m111_set_crop(struct soc_camera_device *icd,
struct v4l2_rect *rect)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
dev_dbg(&icd->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
@@ -455,7 +458,8 @@ static int mt9m111_set_crop(struct soc_camera_device *icd,
static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
switch (pixfmt) {
@@ -505,7 +509,8 @@ static int mt9m111_set_pixfmt(struct soc_camera_device *icd, u32 pixfmt)
static int mt9m111_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_rect rect = {
.left = mt9m111->rect.left,
@@ -543,12 +548,13 @@ static int mt9m111_try_fmt(struct soc_camera_device *icd,
static int mt9m111_get_chip_id(struct soc_camera_device *icd,
struct v4l2_dbg_chip_ident *id)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
return -EINVAL;
- if (id->match.addr != mt9m111->client->addr)
+ if (id->match.addr != client->addr)
return -ENODEV;
id->ident = mt9m111->model;
@@ -561,13 +567,12 @@ static int mt9m111_get_chip_id(struct soc_camera_device *icd,
static int mt9m111_get_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
+ struct i2c_client *client = to_i2c_client(icd->control);
int val;
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
-
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
return -EINVAL;
- if (reg->match.addr != mt9m111->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
val = mt9m111_reg_read(icd, reg->reg);
@@ -583,12 +588,12 @@ static int mt9m111_get_register(struct soc_camera_device *icd,
static int mt9m111_set_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
return -EINVAL;
- if (reg->match.addr != mt9m111->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
if (mt9m111_reg_write(icd, reg->reg, reg->val) < 0)
@@ -647,8 +652,6 @@ static int mt9m111_release(struct soc_camera_device *icd);
static struct soc_camera_ops mt9m111_ops = {
.owner = THIS_MODULE,
- .probe = mt9m111_video_probe,
- .remove = mt9m111_video_remove,
.init = mt9m111_init,
.resume = mt9m111_resume,
.release = mt9m111_release,
@@ -672,7 +675,8 @@ static struct soc_camera_ops mt9m111_ops = {
static int mt9m111_set_flip(struct soc_camera_device *icd, int flip, int mask)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
if (mt9m111->context == HIGHPOWER) {
@@ -721,7 +725,8 @@ static int mt9m111_set_global_gain(struct soc_camera_device *icd, int gain)
static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
if (on)
@@ -737,7 +742,8 @@ static int mt9m111_set_autoexposure(struct soc_camera_device *icd, int on)
static int mt9m111_set_autowhitebalance(struct soc_camera_device *icd, int on)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
if (on)
@@ -754,7 +760,8 @@ static int mt9m111_set_autowhitebalance(struct soc_camera_device *icd, int on)
static int mt9m111_get_control(struct soc_camera_device *icd,
struct v4l2_control *ctrl)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int data;
switch (ctrl->id) {
@@ -797,7 +804,8 @@ static int mt9m111_get_control(struct soc_camera_device *icd,
static int mt9m111_set_control(struct soc_camera_device *icd,
struct v4l2_control *ctrl)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
const struct v4l2_queryctrl *qctrl;
int ret;
@@ -835,7 +843,8 @@ static int mt9m111_set_control(struct soc_camera_device *icd,
static int mt9m111_restore_state(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
mt9m111_set_context(icd, mt9m111->context);
mt9m111_set_pixfmt(icd, mt9m111->pixfmt);
@@ -850,7 +859,8 @@ static int mt9m111_restore_state(struct soc_camera_device *icd)
static int mt9m111_resume(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret = 0;
if (mt9m111->powered) {
@@ -865,7 +875,8 @@ static int mt9m111_resume(struct soc_camera_device *icd)
static int mt9m111_init(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
int ret;
mt9m111->context = HIGHPOWER;
@@ -898,7 +909,8 @@ static int mt9m111_release(struct soc_camera_device *icd)
*/
static int mt9m111_video_probe(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
s32 data;
int ret;
@@ -910,6 +922,11 @@ static int mt9m111_video_probe(struct soc_camera_device *icd)
to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
return -ENODEV;
+ /* Switch master clock on */
+ ret = soc_camera_video_start(icd);
+ if (ret)
+ return ret;
+
ret = mt9m111_enable(icd);
if (ret)
goto ei2c;
@@ -938,40 +955,42 @@ static int mt9m111_video_probe(struct soc_camera_device *icd)
dev_info(&icd->dev, "Detected a MT9M11x chip ID %x\n", data);
- ret = soc_camera_video_start(icd);
- if (ret)
- goto eisis;
-
mt9m111->autoexposure = 1;
mt9m111->autowhitebalance = 1;
mt9m111->swap_rgb_even_odd = 1;
mt9m111->swap_rgb_red_blue = 1;
- return 0;
-eisis:
ei2c:
+ soc_camera_video_stop(icd);
+
return ret;
}
static void mt9m111_video_remove(struct soc_camera_device *icd)
{
- struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
- dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m111->client->addr,
- mt9m111->icd.dev.parent, mt9m111->icd.vdev);
- soc_camera_video_stop(&mt9m111->icd);
+ dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", client->addr,
+ icd->dev.parent, icd->vdev);
+ icd->ops = NULL;
}
static int mt9m111_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct mt9m111 *mt9m111;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct soc_camera_link *icl;
int ret;
+ if (!icd) {
+ dev_err(&client->dev, "MT9M11x: missing soc-camera data!\n");
+ return -EINVAL;
+ }
+
+ icl = dev_get_drvdata(&icd->dev);
if (!icl) {
dev_err(&client->dev, "MT9M11x driver needs platform data\n");
return -EINVAL;
@@ -987,13 +1006,11 @@ static int mt9m111_probe(struct i2c_client *client,
if (!mt9m111)
return -ENOMEM;
- mt9m111->client = client;
+ mt9m111->icd = icd;
i2c_set_clientdata(client, mt9m111);
/* Second stage probe - when a capture adapter is there */
- icd = &mt9m111->icd;
icd->ops = &mt9m111_ops;
- icd->control = &client->dev;
icd->x_min = MT9M111_MIN_DARK_COLS;
icd->y_min = MT9M111_MIN_DARK_ROWS;
icd->x_current = icd->x_min;
@@ -1003,22 +1020,23 @@ static int mt9m111_probe(struct i2c_client *client,
icd->height_min = MT9M111_MIN_DARK_COLS;
icd->height_max = MT9M111_MAX_HEIGHT;
icd->y_skip_top = 0;
- icd->iface = icl->bus_id;
- ret = soc_camera_device_register(icd);
- if (ret)
- goto eisdr;
- return 0;
+ ret = mt9m111_video_probe(icd);
+ if (ret) {
+ i2c_set_clientdata(client, NULL);
+ kfree(mt9m111);
+ }
-eisdr:
- kfree(mt9m111);
return ret;
}
static int mt9m111_remove(struct i2c_client *client)
{
struct mt9m111 *mt9m111 = i2c_get_clientdata(client);
- soc_camera_device_unregister(&mt9m111->icd);
+
+ mt9m111_video_remove(mt9m111->icd);
+ i2c_set_clientdata(client, NULL);
+ client->driver = NULL;
kfree(mt9m111);
return 0;
diff --git a/drivers/media/video/mt9t031.c b/drivers/media/video/mt9t031.c
index 2b0927b..301bce0 100644
--- a/drivers/media/video/mt9t031.c
+++ b/drivers/media/video/mt9t031.c
@@ -68,8 +68,7 @@ static const struct soc_camera_data_format mt9t031_colour_formats[] = {
};
struct mt9t031 {
- struct i2c_client *client;
- struct soc_camera_device icd;
+ struct soc_camera_device *icd;
int model; /* V4L2_IDENT_MT9T031* codes from v4l2-chip-ident.h */
unsigned char autoexposure;
u16 xskip;
@@ -78,8 +77,7 @@ struct mt9t031 {
static int reg_read(struct soc_camera_device *icd, const u8 reg)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
- struct i2c_client *client = mt9t031->client;
+ struct i2c_client *client = to_i2c_client(icd->control);
s32 data = i2c_smbus_read_word_data(client, reg);
return data < 0 ? data : swab16(data);
}
@@ -87,8 +85,8 @@ static int reg_read(struct soc_camera_device *icd, const u8 reg)
static int reg_write(struct soc_camera_device *icd, const u8 reg,
const u16 data)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
- return i2c_smbus_write_word_data(mt9t031->client, reg, swab16(data));
+ struct i2c_client *client = to_i2c_client(icd->control);
+ return i2c_smbus_write_word_data(client, reg, swab16(data));
}
static int reg_set(struct soc_camera_device *icd, const u8 reg,
@@ -141,12 +139,12 @@ static int get_shutter(struct soc_camera_device *icd, u32 *data)
static int mt9t031_init(struct soc_camera_device *icd)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
- struct soc_camera_link *icl = mt9t031->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret;
if (icl->power) {
- ret = icl->power(&mt9t031->client->dev, 1);
+ ret = icl->power(&client->dev, 1);
if (ret < 0) {
dev_err(icd->vdev->parent,
"Platform failed to power-on the camera.\n");
@@ -162,21 +160,21 @@ static int mt9t031_init(struct soc_camera_device *icd)
ret = reg_clear(icd, MT9T031_OUTPUT_CONTROL, 2);
if (ret < 0 && icl->power)
- icl->power(&mt9t031->client->dev, 0);
+ icl->power(&client->dev, 0);
return ret >= 0 ? 0 : -EIO;
}
static int mt9t031_release(struct soc_camera_device *icd)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
- struct soc_camera_link *icl = mt9t031->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
/* Disable the chip */
reg_clear(icd, MT9T031_OUTPUT_CONTROL, 2);
if (icl->power)
- icl->power(&mt9t031->client->dev, 0);
+ icl->power(&client->dev, 0);
return 0;
}
@@ -214,8 +212,7 @@ static int mt9t031_set_bus_param(struct soc_camera_device *icd,
static unsigned long mt9t031_query_bus_param(struct soc_camera_device *icd)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
- struct soc_camera_link *icl = mt9t031->client->dev.platform_data;
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
return soc_camera_apply_sensor_flags(icl, MT9T031_BUS_PARAM);
}
@@ -235,7 +232,8 @@ static void recalculate_limits(struct soc_camera_device *icd,
static int mt9t031_set_params(struct soc_camera_device *icd,
struct v4l2_rect *rect, u16 xskip, u16 yskip)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
int ret;
u16 xbin, ybin, width, height, left, top;
const u16 hblank = MT9T031_HORIZONTAL_BLANK,
@@ -332,7 +330,8 @@ static int mt9t031_set_params(struct soc_camera_device *icd,
static int mt9t031_set_crop(struct soc_camera_device *icd,
struct v4l2_rect *rect)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
/* CROP - no change in scaling, or in limits */
return mt9t031_set_params(icd, rect, mt9t031->xskip, mt9t031->yskip);
@@ -341,7 +340,8 @@ static int mt9t031_set_crop(struct soc_camera_device *icd,
static int mt9t031_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
int ret;
u16 xskip, yskip;
struct v4l2_rect rect = {
@@ -399,12 +399,13 @@ static int mt9t031_try_fmt(struct soc_camera_device *icd,
static int mt9t031_get_chip_id(struct soc_camera_device *icd,
struct v4l2_dbg_chip_ident *id)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
return -EINVAL;
- if (id->match.addr != mt9t031->client->addr)
+ if (id->match.addr != client->addr)
return -ENODEV;
id->ident = mt9t031->model;
@@ -417,12 +418,12 @@ static int mt9t031_get_chip_id(struct soc_camera_device *icd,
static int mt9t031_get_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
- if (reg->match.addr != mt9t031->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
reg->val = reg_read(icd, reg->reg);
@@ -436,12 +437,12 @@ static int mt9t031_get_register(struct soc_camera_device *icd,
static int mt9t031_set_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
- if (reg->match.addr != mt9t031->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
if (reg_write(icd, reg->reg, reg->val) < 0)
@@ -504,8 +505,6 @@ static int mt9t031_set_control(struct soc_camera_device *, struct v4l2_control *
static struct soc_camera_ops mt9t031_ops = {
.owner = THIS_MODULE,
- .probe = mt9t031_video_probe,
- .remove = mt9t031_video_remove,
.init = mt9t031_init,
.release = mt9t031_release,
.start_capture = mt9t031_start_capture,
@@ -528,7 +527,8 @@ static struct soc_camera_ops mt9t031_ops = {
static int mt9t031_get_control(struct soc_camera_device *icd, struct v4l2_control *ctrl)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
int data;
switch (ctrl->id) {
@@ -553,7 +553,8 @@ static int mt9t031_get_control(struct soc_camera_device *icd, struct v4l2_contro
static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_control *ctrl)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
const struct v4l2_queryctrl *qctrl;
int data;
@@ -661,7 +662,8 @@ static int mt9t031_set_control(struct soc_camera_device *icd, struct v4l2_contro
* this wasn't our capture interface, so, we wait for the right one */
static int mt9t031_video_probe(struct soc_camera_device *icd)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
s32 data;
int ret;
@@ -671,6 +673,11 @@ static int mt9t031_video_probe(struct soc_camera_device *icd)
to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
return -ENODEV;
+ /* Switch master clock on */
+ ret = soc_camera_video_start(icd);
+ if (ret)
+ return ret;
+
/* Enable the chip */
data = reg_write(icd, MT9T031_CHIP_ENABLE, 1);
dev_dbg(&icd->dev, "write: %d\n", data);
@@ -678,6 +685,8 @@ static int mt9t031_video_probe(struct soc_camera_device *icd)
/* Read out the chip version register */
data = reg_read(icd, MT9T031_CHIP_VERSION);
+ soc_camera_video_stop(icd);
+
switch (data) {
case 0x1621:
mt9t031->model = V4L2_IDENT_MT9T031;
@@ -685,44 +694,40 @@ static int mt9t031_video_probe(struct soc_camera_device *icd)
icd->num_formats = ARRAY_SIZE(mt9t031_colour_formats);
break;
default:
- ret = -ENODEV;
dev_err(&icd->dev,
"No MT9T031 chip detected, register read %x\n", data);
- goto ei2c;
+ return -ENODEV;
}
dev_info(&icd->dev, "Detected a MT9T031 chip ID %x\n", data);
- /* Now that we know the model, we can start video */
- ret = soc_camera_video_start(icd);
- if (ret)
- goto evstart;
-
return 0;
-
-evstart:
-ei2c:
- return ret;
}
static void mt9t031_video_remove(struct soc_camera_device *icd)
{
- struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
- dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9t031->client->addr,
+ dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", client->addr,
icd->dev.parent, icd->vdev);
- soc_camera_video_stop(icd);
+ icd->ops = NULL;
}
static int mt9t031_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct mt9t031 *mt9t031;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct soc_camera_link *icl;
int ret;
+ if (!icd) {
+ dev_err(&client->dev, "MT9T031: missing soc-camera data!\n");
+ return -EINVAL;
+ }
+
+ icl = dev_get_drvdata(&icd->dev);
if (!icl) {
dev_err(&client->dev, "MT9T031 driver needs platform data\n");
return -EINVAL;
@@ -738,13 +743,11 @@ static int mt9t031_probe(struct i2c_client *client,
if (!mt9t031)
return -ENOMEM;
- mt9t031->client = client;
+ mt9t031->icd = icd;
i2c_set_clientdata(client, mt9t031);
/* Second stage probe - when a capture adapter is there */
- icd = &mt9t031->icd;
icd->ops = &mt9t031_ops;
- icd->control = &client->dev;
icd->x_min = MT9T031_COLUMN_SKIP;
icd->y_min = MT9T031_ROW_SKIP;
icd->x_current = icd->x_min;
@@ -754,7 +757,6 @@ static int mt9t031_probe(struct i2c_client *client,
icd->height_min = MT9T031_MIN_HEIGHT;
icd->height_max = MT9T031_MAX_HEIGHT;
icd->y_skip_top = 0;
- icd->iface = icl->bus_id;
/* Simulated autoexposure. If enabled, we calculate shutter width
* ourselves in the driver based on vertical blanking and frame width */
mt9t031->autoexposure = 1;
@@ -762,15 +764,13 @@ static int mt9t031_probe(struct i2c_client *client,
mt9t031->xskip = 1;
mt9t031->yskip = 1;
- ret = soc_camera_device_register(icd);
- if (ret)
- goto eisdr;
-
- return 0;
+ ret = mt9t031_video_probe(icd);
+ if (ret) {
+ icd->ops = NULL;
+ i2c_set_clientdata(client, NULL);
+ kfree(mt9t031);
+ }
-eisdr:
- i2c_set_clientdata(client, NULL);
- kfree(mt9t031);
return ret;
}
@@ -778,8 +778,9 @@ static int mt9t031_remove(struct i2c_client *client)
{
struct mt9t031 *mt9t031 = i2c_get_clientdata(client);
- soc_camera_device_unregister(&mt9t031->icd);
+ mt9t031_video_remove(mt9t031->icd);
i2c_set_clientdata(client, NULL);
+ client->driver = NULL;
kfree(mt9t031);
return 0;
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index 4d3b481..5d62d0b 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -85,16 +85,14 @@ static const struct soc_camera_data_format mt9v022_monochrome_formats[] = {
};
struct mt9v022 {
- struct i2c_client *client;
- struct soc_camera_device icd;
+ struct soc_camera_device *icd;
int model; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */
u16 chip_control;
};
static int reg_read(struct soc_camera_device *icd, const u8 reg)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct i2c_client *client = mt9v022->client;
+ struct i2c_client *client = to_i2c_client(icd->control);
s32 data = i2c_smbus_read_word_data(client, reg);
return data < 0 ? data : swab16(data);
}
@@ -102,8 +100,8 @@ static int reg_read(struct soc_camera_device *icd, const u8 reg)
static int reg_write(struct soc_camera_device *icd, const u8 reg,
const u16 data)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- return i2c_smbus_write_word_data(mt9v022->client, reg, swab16(data));
+ struct i2c_client *client = to_i2c_client(icd->control);
+ return i2c_smbus_write_word_data(client, reg, swab16(data));
}
static int reg_set(struct soc_camera_device *icd, const u8 reg,
@@ -130,12 +128,13 @@ static int reg_clear(struct soc_camera_device *icd, const u8 reg,
static int mt9v022_init(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
int ret;
if (icl->power) {
- ret = icl->power(&mt9v022->client->dev, 1);
+ ret = icl->power(&client->dev, 1);
if (ret < 0) {
dev_err(icd->vdev->parent,
"Platform failed to power-on the camera.\n");
@@ -148,7 +147,7 @@ static int mt9v022_init(struct soc_camera_device *icd)
* if available. Soft reset is done in video_probe().
*/
if (icl->reset)
- icl->reset(&mt9v022->client->dev);
+ icl->reset(&client->dev);
/* Almost the default mode: master, parallel, simultaneous, and an
* undocumented bit 0x200, which is present in table 7, but not in 8,
@@ -175,18 +174,19 @@ static int mt9v022_init(struct soc_camera_device *icd)
static int mt9v022_release(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
if (icl->power)
- icl->power(&mt9v022->client->dev, 0);
+ icl->power(&client->dev, 0);
return 0;
}
static int mt9v022_start_capture(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
/* Switch to master "normal" mode */
mt9v022->chip_control &= ~0x10;
if (reg_write(icd, MT9V022_CHIP_CONTROL,
@@ -197,7 +197,8 @@ static int mt9v022_start_capture(struct soc_camera_device *icd)
static int mt9v022_stop_capture(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
/* Switch to snapshot mode */
mt9v022->chip_control |= 0x10;
if (reg_write(icd, MT9V022_CHIP_CONTROL,
@@ -209,8 +210,9 @@ static int mt9v022_stop_capture(struct soc_camera_device *icd)
static int mt9v022_set_bus_param(struct soc_camera_device *icd,
unsigned long flags)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK;
int ret;
u16 pixclk = 0;
@@ -262,8 +264,7 @@ static int mt9v022_set_bus_param(struct soc_camera_device *icd,
static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
unsigned int width_flag;
if (icl->query_bus_param)
@@ -324,7 +325,8 @@ static int mt9v022_set_crop(struct soc_camera_device *icd,
static int mt9v022_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_rect rect = {
.left = icd->x_current,
@@ -378,12 +380,13 @@ static int mt9v022_try_fmt(struct soc_camera_device *icd,
static int mt9v022_get_chip_id(struct soc_camera_device *icd,
struct v4l2_dbg_chip_ident *id)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
return -EINVAL;
- if (id->match.addr != mt9v022->client->addr)
+ if (id->match.addr != client->addr)
return -ENODEV;
id->ident = mt9v022->model;
@@ -396,12 +399,12 @@ static int mt9v022_get_chip_id(struct soc_camera_device *icd,
static int mt9v022_get_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
- if (reg->match.addr != mt9v022->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
reg->size = 2;
@@ -416,12 +419,12 @@ static int mt9v022_get_register(struct soc_camera_device *icd,
static int mt9v022_set_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
- if (reg->match.addr != mt9v022->client->addr)
+ if (reg->match.addr != client->addr)
return -ENODEV;
if (reg_write(icd, reg->reg, reg->val) < 0)
@@ -492,8 +495,6 @@ static int mt9v022_set_control(struct soc_camera_device *, struct v4l2_control *
static struct soc_camera_ops mt9v022_ops = {
.owner = THIS_MODULE,
- .probe = mt9v022_video_probe,
- .remove = mt9v022_video_remove,
.init = mt9v022_init,
.release = mt9v022_release,
.start_capture = mt9v022_start_capture,
@@ -650,8 +651,9 @@ static int mt9v022_set_control(struct soc_camera_device *icd,
* this wasn't our capture interface, so, we wait for the right one */
static int mt9v022_video_probe(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
s32 data;
int ret;
unsigned long flags;
@@ -660,6 +662,11 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
return -ENODEV;
+ /* Switch master clock on */
+ ret = soc_camera_video_start(icd);
+ if (ret)
+ return ret;
+
/* Read out the chip version register */
data = reg_read(icd, MT9V022_CHIP_VERSION);
@@ -679,6 +686,8 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
udelay(200);
if (reg_read(icd, MT9V022_RESET)) {
dev_err(&icd->dev, "Resetting MT9V022 failed!\n");
+ if (ret > 0)
+ ret = -EIO;
goto ei2c;
}
@@ -695,7 +704,7 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
}
if (ret < 0)
- goto eisis;
+ goto ei2c;
icd->num_formats = 0;
@@ -717,39 +726,40 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
if (flags & SOCAM_DATAWIDTH_8)
icd->num_formats++;
- ret = soc_camera_video_start(icd);
- if (ret < 0)
- goto eisis;
-
dev_info(&icd->dev, "Detected a MT9V022 chip ID %x, %s sensor\n",
data, mt9v022->model == V4L2_IDENT_MT9V022IX7ATM ?
"monochrome" : "colour");
- return 0;
-
-eisis:
ei2c:
+ soc_camera_video_stop(icd);
+
return ret;
}
static void mt9v022_video_remove(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
- dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9v022->client->addr,
+ dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", client->addr,
icd->dev.parent, icd->vdev);
- soc_camera_video_stop(icd);
+ icd->ops = NULL;
}
static int mt9v022_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct mt9v022 *mt9v022;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct soc_camera_link *icl;
int ret;
+ if (!icd) {
+ dev_err(&client->dev, "MT9V022: missing soc-camera data!\n");
+ return -EINVAL;
+ }
+
+ icl = dev_get_drvdata(&icd->dev);
if (!icl) {
dev_err(&client->dev, "MT9V022 driver needs platform data\n");
return -EINVAL;
@@ -766,12 +776,10 @@ static int mt9v022_probe(struct i2c_client *client,
return -ENOMEM;
mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT;
- mt9v022->client = client;
+ mt9v022->icd = icd;
i2c_set_clientdata(client, mt9v022);
- icd = &mt9v022->icd;
icd->ops = &mt9v022_ops;
- icd->control = &client->dev;
icd->x_min = 1;
icd->y_min = 4;
icd->x_current = 1;
@@ -781,16 +789,13 @@ static int mt9v022_probe(struct i2c_client *client,
icd->height_min = 32;
icd->height_max = 480;
icd->y_skip_top = 1;
- icd->iface = icl->bus_id;
-
- ret = soc_camera_device_register(icd);
- if (ret)
- goto eisdr;
- return 0;
+ ret = mt9v022_video_probe(icd);
+ if (ret) {
+ i2c_set_clientdata(client, NULL);
+ kfree(mt9v022);
+ }
-eisdr:
- kfree(mt9v022);
return ret;
}
@@ -798,7 +803,9 @@ static int mt9v022_remove(struct i2c_client *client)
{
struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
- soc_camera_device_unregister(&mt9v022->icd);
+ mt9v022_video_remove(mt9v022->icd);
+ i2c_set_clientdata(client, NULL);
+ client->driver = NULL;
kfree(mt9v022);
return 0;
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index c462b81..547fd0c 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -503,18 +503,19 @@ static int mx3_camera_add_device(struct soc_camera_device *icd)
mx3_camera_activate(mx3_cam, icd);
ret = icd->ops->init(icd);
- if (ret < 0) {
- clk_disable(mx3_cam->clk);
+ if (ret < 0)
goto einit;
- }
mx3_cam->icd = icd;
+ dev_info(&icd->dev, "MX3 Camera driver attached to camera %d\n",
+ icd->devnum);
+
+ return 0;
+
einit:
+ clk_disable(mx3_cam->clk);
ebusy:
- if (!ret)
- dev_info(&icd->dev, "MX3 Camera driver attached to camera %d\n",
- icd->devnum);
return ret;
}
@@ -946,9 +947,10 @@ static int mx3_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
camera_flags = icd->ops->query_bus_param(icd);
common_flags = soc_camera_bus_param_compatible(camera_flags, bus_flags);
+ dev_dbg(&ici->dev, "Flags cam: 0x%lx host: 0x%lx common: 0x%lx\n",
+ camera_flags, bus_flags, common_flags);
if (!common_flags) {
- dev_dbg(&ici->dev, "no common flags: camera %lx, host %lx\n",
- camera_flags, bus_flags);
+ dev_dbg(&ici->dev, "no common flags");
return -EINVAL;
}
@@ -1001,8 +1003,11 @@ static int mx3_camera_set_bus_param(struct soc_camera_device *icd, __u32 pixfmt)
SOCAM_DATAWIDTH_4;
ret = icd->ops->set_bus_param(icd, common_flags);
- if (ret < 0)
+ if (ret < 0) {
+ dev_dbg(&ici->dev, "camera set_bus_param(%lx) returned %d\n",
+ common_flags, ret);
return ret;
+ }
/*
* So far only gated clock mode is supported. Add a line
@@ -1132,8 +1137,9 @@ static int mx3_camera_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&mx3_cam->capture);
spin_lock_init(&mx3_cam->lock);
- base = ioremap(res->start, res->end - res->start + 1);
+ base = ioremap(res->start, resource_size(res));
if (!base) {
+ pr_err("Couldn't map %x@%x\n", resource_size(res), res->start);
err = -ENOMEM;
goto eioremap;
}
@@ -1218,3 +1224,4 @@ module_exit(mx3_camera_exit);
MODULE_DESCRIPTION("i.MX3x SoC Camera Host driver");
MODULE_AUTHOR("Guennadi Liakhovetski <lg@xxxxxxx>");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" MX3_CAM_DRV_NAME);
diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c
index c0d9112..a718bdc 100644
--- a/drivers/media/video/ov772x.c
+++ b/drivers/media/video/ov772x.c
@@ -400,7 +400,7 @@ struct ov772x_win_size {
struct ov772x_priv {
struct ov772x_camera_info *info;
struct i2c_client *client;
- struct soc_camera_device icd;
+ struct soc_camera_device *icd;
const struct ov772x_color_format *fmt;
const struct ov772x_win_size *win;
int model;
@@ -619,53 +619,56 @@ static int ov772x_reset(struct i2c_client *client)
static int ov772x_init(struct soc_camera_device *icd)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret = 0;
- if (priv->info->link.power) {
- ret = priv->info->link.power(&priv->client->dev, 1);
+ if (icl->power) {
+ ret = icl->power(&client->dev, 1);
if (ret < 0)
return ret;
}
- if (priv->info->link.reset)
- ret = priv->info->link.reset(&priv->client->dev);
+ if (icl->reset)
+ ret = icl->reset(&client->dev);
return ret;
}
static int ov772x_release(struct soc_camera_device *icd)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret = 0;
- if (priv->info->link.power)
- ret = priv->info->link.power(&priv->client->dev, 0);
+ if (icl->power)
+ ret = icl->power(&client->dev, 0);
return ret;
}
static int ov772x_start_capture(struct soc_camera_device *icd)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
if (!priv->win || !priv->fmt) {
dev_err(&icd->dev, "norm or win select error\n");
return -EPERM;
}
- ov772x_mask_set(priv->client, COM2, SOFT_SLEEP_MODE, 0);
+ ov772x_mask_set(client, COM2, SOFT_SLEEP_MODE, 0);
dev_dbg(&icd->dev,
- "format %s, win %s\n", priv->fmt->name, priv->win->name);
+ "format %s, win %s\n", priv->fmt->name, priv->win->name);
return 0;
}
static int ov772x_stop_capture(struct soc_camera_device *icd)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
- ov772x_mask_set(priv->client, COM2, SOFT_SLEEP_MODE, SOFT_SLEEP_MODE);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ ov772x_mask_set(client, COM2, SOFT_SLEEP_MODE, SOFT_SLEEP_MODE);
return 0;
}
@@ -677,8 +680,9 @@ static int ov772x_set_bus_param(struct soc_camera_device *icd,
static unsigned long ov772x_query_bus_param(struct soc_camera_device *icd)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
- struct soc_camera_link *icl = &priv->info->link;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER |
SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH |
SOCAM_DATA_ACTIVE_HIGH | priv->info->buswidth;
@@ -689,7 +693,8 @@ static unsigned long ov772x_query_bus_param(struct soc_camera_device *icd)
static int ov772x_get_control(struct soc_camera_device *icd,
struct v4l2_control *ctrl)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
switch (ctrl->id) {
case V4L2_CID_VFLIP:
@@ -705,7 +710,8 @@ static int ov772x_get_control(struct soc_camera_device *icd,
static int ov772x_set_control(struct soc_camera_device *icd,
struct v4l2_control *ctrl)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
int ret = 0;
u8 val;
@@ -730,9 +736,10 @@ static int ov772x_set_control(struct soc_camera_device *icd,
}
static int ov772x_get_chip_id(struct soc_camera_device *icd,
- struct v4l2_dbg_chip_ident *id)
+ struct v4l2_dbg_chip_ident *id)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
id->ident = priv->model;
id->revision = 0;
@@ -744,14 +751,14 @@ static int ov772x_get_chip_id(struct soc_camera_device *icd,
static int ov772x_get_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
- int ret;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ int ret;
reg->size = 1;
if (reg->reg > 0xff)
return -EINVAL;
- ret = i2c_smbus_read_byte_data(priv->client, reg->reg);
+ ret = i2c_smbus_read_byte_data(client, reg->reg);
if (ret < 0)
return ret;
@@ -763,13 +770,13 @@ static int ov772x_get_register(struct soc_camera_device *icd,
static int ov772x_set_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->reg > 0xff ||
reg->val > 0xff)
return -EINVAL;
- return i2c_smbus_write_byte_data(priv->client, reg->reg, reg->val);
+ return i2c_smbus_write_byte_data(client, reg->reg, reg->val);
}
#endif
@@ -930,7 +937,8 @@ ov772x_set_fmt_error:
static int ov772x_set_crop(struct soc_camera_device *icd,
struct v4l2_rect *rect)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
if (!priv->fmt)
return -EINVAL;
@@ -942,7 +950,8 @@ static int ov772x_set_crop(struct soc_camera_device *icd,
static int ov772x_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
struct v4l2_pix_format *pix = &f->fmt.pix;
return ov772x_set_params(priv, pix->width, pix->height,
@@ -969,9 +978,11 @@ static int ov772x_try_fmt(struct soc_camera_device *icd,
static int ov772x_video_probe(struct soc_camera_device *icd)
{
- struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct ov772x_priv *priv = i2c_get_clientdata(client);
u8 pid, ver;
const char *devname;
+ int ret;
/*
* We must have a parent by now. And it cannot be a wrong one.
@@ -993,11 +1004,18 @@ static int ov772x_video_probe(struct soc_camera_device *icd)
icd->formats = ov772x_fmt_lists;
icd->num_formats = ARRAY_SIZE(ov772x_fmt_lists);
+ /* Switch master clock on */
+ ret = soc_camera_video_start(icd);
+ if (ret)
+ return ret;
+
/*
* check and show product ID and manufacturer ID
*/
- pid = i2c_smbus_read_byte_data(priv->client, PID);
- ver = i2c_smbus_read_byte_data(priv->client, VER);
+ pid = i2c_smbus_read_byte_data(client, PID);
+ ver = i2c_smbus_read_byte_data(client, VER);
+
+ soc_camera_video_stop(icd);
switch (VERSION(pid, ver)) {
case OV7720:
@@ -1022,18 +1040,16 @@ static int ov772x_video_probe(struct soc_camera_device *icd)
i2c_smbus_read_byte_data(priv->client, MIDH),
i2c_smbus_read_byte_data(priv->client, MIDL));
- return soc_camera_video_start(icd);
+ return 0;
}
static void ov772x_video_remove(struct soc_camera_device *icd)
{
- soc_camera_video_stop(icd);
+ icd->ops = NULL;
}
static struct soc_camera_ops ov772x_ops = {
.owner = THIS_MODULE,
- .probe = ov772x_video_probe,
- .remove = ov772x_video_remove,
.init = ov772x_init,
.release = ov772x_release,
.start_capture = ov772x_start_capture,
@@ -1063,13 +1079,21 @@ static int ov772x_probe(struct i2c_client *client,
{
struct ov772x_priv *priv;
struct ov772x_camera_info *info;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+ struct soc_camera_link *icl;
int ret;
- info = client->dev.platform_data;
- if (!info)
+ if (!icd) {
+ dev_err(&client->dev, "MT9M001: missing soc-camera data!\n");
return -EINVAL;
+ }
+
+ icl = dev_get_drvdata(&icd->dev);
+ if (!icl)
+ return -EINVAL;
+
+ info = container_of(icl, struct ov772x_camera_info, link);
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&adapter->dev,
@@ -1086,15 +1110,11 @@ static int ov772x_probe(struct i2c_client *client,
priv->client = client;
i2c_set_clientdata(client, priv);
- icd = &priv->icd;
icd->ops = &ov772x_ops;
- icd->control = &client->dev;
icd->width_max = MAX_WIDTH;
icd->height_max = MAX_HEIGHT;
- icd->iface = priv->info->link.bus_id;
-
- ret = soc_camera_device_register(icd);
+ ret = ov772x_video_probe(icd);
if (ret) {
i2c_set_clientdata(client, NULL);
kfree(priv);
@@ -1107,7 +1127,7 @@ static int ov772x_remove(struct i2c_client *client)
{
struct ov772x_priv *priv = i2c_get_clientdata(client);
- soc_camera_device_unregister(&priv->icd);
+ ov772x_video_remove(priv->icd);
i2c_set_clientdata(client, NULL);
kfree(priv);
return 0;
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index c639845..dcbe3d5 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -970,15 +970,20 @@ static int pxa_camera_add_device(struct soc_camera_device *icd)
goto ebusy;
}
- dev_info(&icd->dev, "PXA Camera driver attached to camera %d\n",
- icd->devnum);
-
pxa_camera_activate(pcdev);
ret = icd->ops->init(icd);
+ if (ret < 0)
+ goto einit;
+
+ pcdev->icd = icd;
- if (!ret)
- pcdev->icd = icd;
+ dev_info(&icd->dev, "PXA Camera driver attached to camera %d\n",
+ icd->devnum);
+ return 0;
+
+einit:
+ pxa_camera_deactivate(pcdev);
ebusy:
return ret;
}
@@ -1750,3 +1755,4 @@ module_exit(pxa_camera_exit);
MODULE_DESCRIPTION("PXA27x SoC Camera Host driver");
MODULE_AUTHOR("Guennadi Liakhovetski <kernel@xxxxxxxxxxxxxx>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" PXA_CAM_DRV_NAME);
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index b5e37a5..602dccb 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -361,11 +361,13 @@ static int sh_mobile_ceu_add_device(struct soc_camera_device *icd)
"SuperH Mobile CEU driver attached to camera %d\n",
icd->devnum);
+ clk_enable(pcdev->clk);
+
ret = icd->ops->init(icd);
- if (ret)
+ if (ret) {
+ clk_disable(pcdev->clk);
goto err;
-
- clk_enable(pcdev->clk);
+ }
ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
while (ceu_read(pcdev, CSTSR) & 1)
@@ -399,10 +401,10 @@ static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd)
}
spin_unlock_irqrestore(&pcdev->lock, flags);
- clk_disable(pcdev->clk);
-
icd->ops->release(icd);
+ clk_disable(pcdev->clk);
+
dev_info(&icd->dev,
"SuperH Mobile CEU driver detached from camera %d\n",
icd->devnum);
@@ -949,3 +951,4 @@ module_exit(sh_mobile_ceu_exit);
MODULE_DESCRIPTION("SuperH Mobile CEU driver");
MODULE_AUTHOR("Magnus Damm");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:sh_mobile_ceu");
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 0e890cc..4a1381b 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -16,19 +16,21 @@
* published by the Free Software Foundation.
*/
-#include <linux/module.h>
-#include <linux/init.h>
#include <linux/device.h>
-#include <linux/list.h>
#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/list.h>
#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
#include <linux/vmalloc.h>
+#include <media/soc_camera.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-dev.h>
#include <media/videobuf-core.h>
-#include <media/soc_camera.h>
/* Default to VGA resolution */
#define DEFAULT_WIDTH 640
@@ -36,7 +38,7 @@
static LIST_HEAD(hosts);
static LIST_HEAD(devices);
-static DEFINE_MUTEX(list_lock);
+static DEFINE_MUTEX(list_lock); /* Protects the list of hosts */
const struct soc_camera_data_format *soc_camera_format_by_fourcc(
struct soc_camera_device *icd, unsigned int fourcc)
@@ -207,6 +209,7 @@ static int soc_camera_dqbuf(struct file *file, void *priv,
return videobuf_dqbuf(&icf->vb_vidq, p, file->f_flags & O_NONBLOCK);
}
+/* Always entered with .video_lock held */
static int soc_camera_init_user_formats(struct soc_camera_device *icd)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
@@ -255,9 +258,12 @@ static int soc_camera_init_user_formats(struct soc_camera_device *icd)
return 0;
}
+/* Always entered with .video_lock held */
static void soc_camera_free_user_formats(struct soc_camera_device *icd)
{
+ icd->current_fmt = NULL;
vfree(icd->user_formats);
+ icd->user_formats = NULL;
}
/* Called with .vb_lock held */
@@ -308,10 +314,6 @@ static int soc_camera_open(struct file *file)
struct soc_camera_file *icf;
int ret;
- icf = vmalloc(sizeof(*icf));
- if (!icf)
- return -ENOMEM;
-
/*
* It is safe to dereference these pointers now as long as a user has
* the video device open - we are protected by the held cdev reference.
@@ -319,8 +321,17 @@ static int soc_camera_open(struct file *file)
vdev = video_devdata(file);
icd = container_of(vdev->parent, struct soc_camera_device, dev);
+
+ if (!icd->ops)
+ /* No device driver attached */
+ return -ENODEV;
+
ici = to_soc_camera_host(icd->dev.parent);
+ icf = vmalloc(sizeof(*icf));
+ if (!icf)
+ return -ENOMEM;
+
if (!try_module_get(icd->ops->owner)) {
dev_err(&icd->dev, "Couldn't lock sensor driver.\n");
ret = -EINVAL;
@@ -333,7 +344,7 @@ static int soc_camera_open(struct file *file)
goto emgi;
}
- /* Protect against icd->remove() until we module_get() both drivers. */
+ /* Protect against icd->ops->remove() until we module_get() both drivers. */
mutex_lock(&icd->video_lock);
icf->icd = icd;
@@ -348,11 +359,16 @@ static int soc_camera_open(struct file *file)
.width = icd->width,
.height = icd->height,
.field = icd->field,
- .pixelformat = icd->current_fmt->fourcc,
- .colorspace = icd->current_fmt->colorspace,
},
};
+ ret = soc_camera_init_user_formats(icd);
+ if (ret < 0)
+ goto eiufmt;
+
+ f.fmt.pix.pixelformat = icd->current_fmt->fourcc;
+ f.fmt.pix.colorspace = icd->current_fmt->colorspace;
+
ret = ici->ops->add(icd);
if (ret < 0) {
dev_err(&icd->dev, "Couldn't activate the camera: %d\n", ret);
@@ -381,6 +397,8 @@ static int soc_camera_open(struct file *file)
esfmt:
ici->ops->remove(icd);
eiciadd:
+ soc_camera_free_user_formats(icd);
+eiufmt:
icd->use_count--;
mutex_unlock(&icd->video_lock);
module_put(ici->ops->owner);
@@ -400,8 +418,10 @@ static int soc_camera_close(struct file *file)
mutex_lock(&icd->video_lock);
icd->use_count--;
- if (!icd->use_count)
+ if (!icd->use_count) {
ici->ops->remove(icd);
+ soc_camera_free_user_formats(icd);
+ }
mutex_unlock(&icd->video_lock);
@@ -762,29 +782,6 @@ static int soc_camera_s_register(struct file *file, void *fh,
}
#endif
-static int device_register_link(struct soc_camera_device *icd)
-{
- int ret = dev_set_name(&icd->dev, "%u-%u", icd->iface, icd->devnum);
-
- if (!ret)
- ret = device_register(&icd->dev);
-
- if (ret < 0) {
- /* Prevent calling device_unregister() */
- icd->dev.parent = NULL;
- dev_err(&icd->dev, "Cannot register device: %d\n", ret);
- /* Even if probe() was unsuccessful for all registered drivers,
- * device_register() returns 0, and we add the link, just to
- * document this camera's control device */
- } else if (icd->control)
- /* Have to sysfs_remove_link() before device_unregister()? */
- if (sysfs_create_link(&icd->dev.kobj, &icd->control->kobj,
- "control"))
- dev_warn(&icd->dev,
- "Failed creating the control symlink\n");
- return ret;
-}
-
/* So far this function cannot fail */
static void scan_add_host(struct soc_camera_host *ici)
{
@@ -794,103 +791,63 @@ static void scan_add_host(struct soc_camera_host *ici)
list_for_each_entry(icd, &devices, list) {
if (icd->iface == ici->nr) {
+ int ret;
icd->dev.parent = &ici->dev;
- device_register_link(icd);
- }
- }
-
- mutex_unlock(&list_lock);
-}
-
-/* return: 0 if no match found or a match found and
- * device_register() successful, error code otherwise */
-static int scan_add_device(struct soc_camera_device *icd)
-{
- struct soc_camera_host *ici;
- int ret = 0;
-
- mutex_lock(&list_lock);
-
- list_add_tail(&icd->list, &devices);
-
- /* Watch out for class_for_each_device / class_find_device API by
- * Dave Young <hidave.darkstar@xxxxxxxxx> */
- list_for_each_entry(ici, &hosts, list) {
- if (icd->iface == ici->nr) {
- ret = 1;
- icd->dev.parent = &ici->dev;
- break;
+ dev_set_name(&icd->dev, "%u-%u", icd->iface,
+ icd->devnum);
+ ret = device_register(&icd->dev);
+ if (ret < 0) {
+ icd->dev.parent = NULL;
+ dev_err(&icd->dev,
+ "Cannot register device: %d\n", ret);
+ }
}
}
mutex_unlock(&list_lock);
-
- if (ret)
- ret = device_register_link(icd);
-
- return ret;
}
+static int video_dev_create(struct soc_camera_device *icd);
+/* Called during host-driver probe */
static int soc_camera_probe(struct device *dev)
{
struct soc_camera_device *icd = to_soc_camera_dev(dev);
- struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret;
+ struct i2c_client *client;
+ struct i2c_adapter *adap = i2c_get_adapter(icl->i2c_adapter_id);
+
+ if (!adap) {
+ ret = -ENODEV;
+ goto ei2cga;
+ }
- /*
- * Possible race scenario:
- * modprobe <camera-host-driver> triggers __func__
- * at this moment respective <camera-sensor-driver> gets rmmod'ed
- * to protect take module references.
- */
+ dev_info(dev, "Probing %s\n", dev_name(dev));
- if (!try_module_get(icd->ops->owner)) {
- dev_err(&icd->dev, "Couldn't lock sensor driver.\n");
- ret = -EINVAL;
- goto emgd;
+ client = i2c_new_device(adap, icl->board_info);
+ if (!client) {
+ ret = -ENOMEM;
+ goto ei2cnd;
}
- if (!try_module_get(ici->ops->owner)) {
- dev_err(&icd->dev, "Couldn't lock capture bus driver.\n");
- ret = -EINVAL;
- goto emgi;
- }
+ /* Use to_i2c_client(dev) to recover the i2c client */
+ icd->control = &client->dev;
- mutex_lock(&icd->video_lock);
+ /* Do we have to sysfs_remove_link() before device_unregister()? */
+ if (sysfs_create_link(&dev->kobj, &icd->control->kobj, "control"))
+ dev_warn(dev, "Failed creating the control symlink\n");
- /* We only call ->add() here to activate and probe the camera.
- * We shall ->remove() and deactivate it immediately afterwards. */
- ret = ici->ops->add(icd);
+ ret = video_dev_create(icd);
if (ret < 0)
- goto eiadd;
+ goto evdc;
- ret = icd->ops->probe(icd);
- if (ret >= 0) {
- const struct v4l2_queryctrl *qctrl;
-
- qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_GAIN);
- icd->gain = qctrl ? qctrl->default_value : (unsigned short)~0;
- qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE);
- icd->exposure = qctrl ? qctrl->default_value :
- (unsigned short)~0;
-
- ret = soc_camera_init_user_formats(icd);
- if (ret < 0)
- goto eiufmt;
-
- icd->height = DEFAULT_HEIGHT;
- icd->width = DEFAULT_WIDTH;
- icd->field = V4L2_FIELD_ANY;
- }
+ return 0;
-eiufmt:
- ici->ops->remove(icd);
-eiadd:
- mutex_unlock(&icd->video_lock);
- module_put(ici->ops->owner);
-emgi:
- module_put(icd->ops->owner);
-emgd:
+evdc:
+ i2c_unregister_device(client);
+ei2cnd:
+ i2c_put_adapter(adap);
+ei2cga:
return ret;
}
@@ -899,11 +856,22 @@ emgd:
static int soc_camera_remove(struct device *dev)
{
struct soc_camera_device *icd = to_soc_camera_dev(dev);
+ struct video_device *vdev = icd->vdev;
- if (icd->ops->remove)
- icd->ops->remove(icd);
+ BUG_ON(!dev->parent);
- soc_camera_free_user_formats(icd);
+ if (vdev) {
+ mutex_lock(&icd->video_lock);
+ video_unregister_device(vdev);
+ icd->vdev = NULL;
+ mutex_unlock(&icd->video_lock);
+ }
+
+ if (icd->control) {
+ struct i2c_client *client = to_i2c_client(icd->control);
+ i2c_unregister_device(client);
+ i2c_put_adapter(client->adapter);
+ }
return 0;
}
@@ -985,7 +953,6 @@ int soc_camera_host_register(struct soc_camera_host *ici)
ici->dev.release = dummy_release;
ret = device_register(&ici->dev);
-
if (ret)
goto edevr;
@@ -1013,10 +980,14 @@ void soc_camera_host_unregister(struct soc_camera_host *ici)
list_for_each_entry(icd, &devices, list) {
if (icd->dev.parent == &ici->dev) {
+ /* The bus->remove will be called */
device_unregister(&icd->dev);
/* Not before device_unregister(), .remove
* needs parent to call ici->ops->remove() */
icd->dev.parent = NULL;
+
+ /* If the host module is loaded again, device_register()
+ * would complain "already initialised" */
memset(&icd->dev.kobj, 0, sizeof(icd->dev.kobj));
}
}
@@ -1028,26 +999,14 @@ void soc_camera_host_unregister(struct soc_camera_host *ici)
EXPORT_SYMBOL(soc_camera_host_unregister);
/* Image capture device */
-int soc_camera_device_register(struct soc_camera_device *icd)
+static int soc_camera_device_register(struct soc_camera_device *icd)
{
struct soc_camera_device *ix;
int num = -1, i;
- if (!icd || !icd->ops ||
- !icd->ops->probe ||
- !icd->ops->init ||
- !icd->ops->release ||
- !icd->ops->start_capture ||
- !icd->ops->stop_capture ||
- !icd->ops->set_crop ||
- !icd->ops->set_fmt ||
- !icd->ops->try_fmt ||
- !icd->ops->query_bus_param ||
- !icd->ops->set_bus_param)
- return -EINVAL;
-
for (i = 0; i < 256 && num < 0; i++) {
num = i;
+ /* Check if this index is available on this interface */
list_for_each_entry(ix, &devices, list) {
if (ix->iface == icd->iface && ix->devnum == i) {
num = -1;
@@ -1069,21 +1028,15 @@ int soc_camera_device_register(struct soc_camera_device *icd)
icd->host_priv = NULL;
mutex_init(&icd->video_lock);
- return scan_add_device(icd);
+ list_add_tail(&icd->list, &devices);
+
+ return 0;
}
-EXPORT_SYMBOL(soc_camera_device_register);
-void soc_camera_device_unregister(struct soc_camera_device *icd)
+static void soc_camera_device_unregister(struct soc_camera_device *icd)
{
- mutex_lock(&list_lock);
list_del(&icd->list);
-
- /* The bus->remove will be eventually called */
- if (icd->dev.parent)
- device_unregister(&icd->dev);
- mutex_unlock(&list_lock);
}
-EXPORT_SYMBOL(soc_camera_device_unregister);
static const struct v4l2_ioctl_ops soc_camera_ioctl_ops = {
.vidioc_querycap = soc_camera_querycap,
@@ -1114,22 +1067,14 @@ static const struct v4l2_ioctl_ops soc_camera_ioctl_ops = {
#endif
};
-/*
- * Usually called from the struct soc_camera_ops .probe() method, i.e., from
- * soc_camera_probe() above with .video_lock held
- */
-int soc_camera_video_start(struct soc_camera_device *icd)
+static int video_dev_create(struct soc_camera_device *icd)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
- int err = -ENOMEM;
- struct video_device *vdev;
-
- if (!icd->dev.parent)
- return -ENODEV;
+ int ret;
+ struct video_device *vdev = video_device_alloc();
- vdev = video_device_alloc();
if (!vdev)
- goto evidallocd;
+ return -ENOMEM;
dev_dbg(&ici->dev, "Allocated video_device %p\n", vdev);
strlcpy(vdev->name, ici->drv_name, sizeof(vdev->name));
@@ -1140,10 +1085,10 @@ int soc_camera_video_start(struct soc_camera_device *icd)
vdev->ioctl_ops = &soc_camera_ioctl_ops;
vdev->release = video_device_release;
vdev->minor = -1;
- vdev->tvnorms = V4L2_STD_UNKNOWN,
+ vdev->tvnorms = V4L2_STD_UNKNOWN;
- err = video_register_device(vdev, VFL_TYPE_GRABBER, vdev->minor);
- if (err < 0) {
+ ret = video_register_device(vdev, VFL_TYPE_GRABBER, vdev->minor);
+ if (ret < 0) {
dev_err(vdev->parent, "video_register_device failed\n");
goto evidregd;
}
@@ -1153,27 +1098,97 @@ int soc_camera_video_start(struct soc_camera_device *icd)
evidregd:
video_device_release(vdev);
-evidallocd:
- return err;
+ return ret;
+}
+
+/*
+ * Usually called from the struct soc_camera_ops .probe() method, i.e., from
+ * soc_camera_probe() above with .video_lock held
+ */
+int soc_camera_video_start(struct soc_camera_device *icd)
+{
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ const struct v4l2_queryctrl *qctrl;
+
+ if (!icd->dev.parent)
+ return -ENODEV;
+
+ if (!icd->ops ||
+ !icd->ops->init ||
+ !icd->ops->release ||
+ !icd->ops->start_capture ||
+ !icd->ops->stop_capture ||
+ !icd->ops->set_fmt ||
+ !icd->ops->try_fmt ||
+ !icd->ops->query_bus_param ||
+ !icd->ops->set_bus_param)
+ return -EINVAL;
+
+
+ qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_GAIN);
+ icd->gain = qctrl ? qctrl->default_value : (unsigned short)~0;
+ qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE);
+ icd->exposure = qctrl ? qctrl->default_value : (unsigned short)~0;
+
+ return ici->ops->add(icd);
}
EXPORT_SYMBOL(soc_camera_video_start);
void soc_camera_video_stop(struct soc_camera_device *icd)
{
- struct video_device *vdev = icd->vdev;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
dev_dbg(&icd->dev, "%s\n", __func__);
- if (!icd->dev.parent || !vdev)
- return;
-
- mutex_lock(&icd->video_lock);
- video_unregister_device(vdev);
- icd->vdev = NULL;
- mutex_unlock(&icd->video_lock);
+ ici->ops->remove(icd);
}
EXPORT_SYMBOL(soc_camera_video_stop);
+static int __devinit soc_camera_pdrv_probe(struct platform_device *pdev)
+{
+ struct soc_camera_link *icl = pdev->dev.platform_data;
+ struct soc_camera_device *icd;
+
+ if (!icl)
+ return -EINVAL;
+
+ icd = kzalloc(sizeof(*icd), GFP_KERNEL);
+ if (!icd)
+ return -ENOMEM;
+
+ icd->iface = icl->bus_id;
+ icl->board_info->platform_data = icd;
+ platform_set_drvdata(pdev, icd);
+ dev_set_drvdata(&icd->dev, icl);
+
+ return soc_camera_device_register(icd);
+}
+
+/* Only called on rmmod for each platform device, since they are not
+ * hot-pluggable. Now we know, that all our users - hosts and devices have
+ * been unloaded already */
+static int __devexit soc_camera_pdrv_remove(struct platform_device *pdev)
+{
+ struct soc_camera_device *icd = platform_get_drvdata(pdev);
+
+ if (!icd)
+ return -EINVAL;
+
+ soc_camera_device_unregister(icd);
+
+ kfree(icd);
+
+ return 0;
+}
+
+static struct platform_driver soc_camera_pdrv = {
+ .remove = __exit_p(soc_camera_pdrv_remove),
+ .driver = {
+ .name = "soc-camera-pdrv",
+ .owner = THIS_MODULE,
+ },
+};
+
static int __init soc_camera_init(void)
{
int ret = bus_register(&soc_camera_bus_type);
@@ -1183,8 +1198,14 @@ static int __init soc_camera_init(void)
if (ret)
goto edrvr;
+ ret = platform_driver_probe(&soc_camera_pdrv, soc_camera_pdrv_probe);
+ if (ret)
+ goto epdr;
+
return 0;
+epdr:
+ driver_unregister(&ic_drv);
edrvr:
bus_unregister(&soc_camera_bus_type);
return ret;
@@ -1192,6 +1213,7 @@ edrvr:
static void __exit soc_camera_exit(void)
{
+ platform_driver_unregister(&soc_camera_pdrv);
driver_unregister(&ic_drv);
bus_unregister(&soc_camera_bus_type);
}
@@ -1202,3 +1224,4 @@ module_exit(soc_camera_exit);
MODULE_DESCRIPTION("Image capture bus driver");
MODULE_AUTHOR("Guennadi Liakhovetski <kernel@xxxxxxxxxxxxxx>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:soc-camera-pdrv");
diff --git a/drivers/media/video/soc_camera_platform.c b/drivers/media/video/soc_camera_platform.c
index c486763..fe462ef 100644
--- a/drivers/media/video/soc_camera_platform.c
+++ b/drivers/media/video/soc_camera_platform.c
@@ -20,49 +20,53 @@
#include <media/soc_camera.h>
#include <media/soc_camera_platform.h>
+static const char drv_name[] = "soc_camera_platform";
+
struct soc_camera_platform_priv {
struct soc_camera_platform_info *info;
- struct soc_camera_device icd;
+ struct soc_camera_device *icd;
struct soc_camera_data_format format;
};
-static struct soc_camera_platform_info *
-soc_camera_platform_get_info(struct soc_camera_device *icd)
+static struct soc_camera_platform_info *i2c_to_info(struct i2c_client *client)
{
- struct soc_camera_platform_priv *priv;
- priv = container_of(icd, struct soc_camera_platform_priv, icd);
+ struct soc_camera_platform_priv *priv = i2c_get_clientdata(client);
return priv->info;
}
static int soc_camera_platform_init(struct soc_camera_device *icd)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_platform_info *p = i2c_to_info(client);
- if (p->power)
- p->power(1);
+ if (p->link.power)
+ p->link.power(&client->dev, 1);
return 0;
}
static int soc_camera_platform_release(struct soc_camera_device *icd)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_platform_info *p = i2c_to_info(client);
- if (p->power)
- p->power(0);
+ if (p->link.power)
+ p->link.power(&client->dev, 0);
return 0;
}
static int soc_camera_platform_start_capture(struct soc_camera_device *icd)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_platform_info *p = i2c_to_info(client);
return p->set_capture(p, 1);
}
static int soc_camera_platform_stop_capture(struct soc_camera_device *icd)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_platform_info *p = i2c_to_info(client);
return p->set_capture(p, 0);
}
@@ -75,7 +79,8 @@ static int soc_camera_platform_set_bus_param(struct soc_camera_device *icd,
static unsigned long
soc_camera_platform_query_bus_param(struct soc_camera_device *icd)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_platform_info *p = i2c_to_info(client);
return p->bus_param;
}
@@ -94,7 +99,8 @@ static int soc_camera_platform_set_fmt(struct soc_camera_device *icd,
static int soc_camera_platform_try_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
- struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_platform_info *p = i2c_to_info(client);
struct v4l2_pix_format *pix = &f->fmt.pix;
pix->width = p->format.width;
@@ -104,29 +110,28 @@ static int soc_camera_platform_try_fmt(struct soc_camera_device *icd,
static int soc_camera_platform_video_probe(struct soc_camera_device *icd)
{
- struct soc_camera_platform_priv *priv;
- priv = container_of(icd, struct soc_camera_platform_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_platform_priv *priv = i2c_get_clientdata(client);
+ struct soc_camera_platform_info *p = priv->info;
- priv->format.name = priv->info->format_name;
- priv->format.depth = priv->info->format_depth;
- priv->format.fourcc = priv->info->format.pixelformat;
- priv->format.colorspace = priv->info->format.colorspace;
+ priv->format.name = p->format_name;
+ priv->format.depth = p->format_depth;
+ priv->format.fourcc = p->format.pixelformat;
+ priv->format.colorspace = p->format.colorspace;
icd->formats = &priv->format;
icd->num_formats = 1;
- return soc_camera_video_start(icd);
+ return 0;
}
static void soc_camera_platform_video_remove(struct soc_camera_device *icd)
{
- soc_camera_video_stop(icd);
+ icd->ops = NULL;
}
static struct soc_camera_ops soc_camera_platform_ops = {
.owner = THIS_MODULE,
- .probe = soc_camera_platform_video_probe,
- .remove = soc_camera_platform_video_remove,
.init = soc_camera_platform_init,
.release = soc_camera_platform_release,
.start_capture = soc_camera_platform_start_capture,
@@ -138,66 +143,84 @@ static struct soc_camera_ops soc_camera_platform_ops = {
.query_bus_param = soc_camera_platform_query_bus_param,
};
-static int soc_camera_platform_probe(struct platform_device *pdev)
+static int soc_camera_platform_probe(struct i2c_client *client,
+ const struct i2c_device_id *did)
{
struct soc_camera_platform_priv *priv;
struct soc_camera_platform_info *p;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl;
int ret;
- p = pdev->dev.platform_data;
- if (!p)
+ if (!icd) {
+ dev_err(&client->dev, "%s: missing soc-camera data!\n", drv_name);
return -EINVAL;
+ }
+
+ icl = dev_get_drvdata(&icd->dev);
+ if (!icl) {
+ dev_err(&client->dev, "%s driver needs platform data\n", drv_name);
+ return -EINVAL;
+ }
+
+ p = container_of(icl, struct soc_camera_platform_info, link);
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->info = p;
- platform_set_drvdata(pdev, priv);
+ i2c_set_clientdata(client, priv);
- icd = &priv->icd;
icd->ops = &soc_camera_platform_ops;
- icd->control = &pdev->dev;
icd->width_min = 0;
- icd->width_max = priv->info->format.width;
+ icd->width_max = p->format.width;
icd->height_min = 0;
- icd->height_max = priv->info->format.height;
+ icd->height_max = p->format.height;
icd->y_skip_top = 0;
- icd->iface = priv->info->iface;
- ret = soc_camera_device_register(icd);
- if (ret)
+ ret = soc_camera_platform_video_probe(icd);
+ if (ret) {
+ i2c_set_clientdata(client, NULL);
kfree(priv);
+ }
return ret;
}
-static int soc_camera_platform_remove(struct platform_device *pdev)
+static int soc_camera_platform_remove(struct i2c_client *client)
{
- struct soc_camera_platform_priv *priv = platform_get_drvdata(pdev);
+ struct soc_camera_platform_priv *priv = i2c_get_clientdata(client);
- soc_camera_device_unregister(&priv->icd);
+ soc_camera_platform_video_remove(priv->icd);
+ i2c_set_clientdata(client, NULL);
kfree(priv);
return 0;
}
-static struct platform_driver soc_camera_platform_driver = {
+static const struct i2c_device_id soc_camera_platform_id[] = {
+ { "soc_camera_platform", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, soc_camera_platform_id);
+
+static struct i2c_driver soc_camera_platform_driver = {
.driver = {
.name = "soc_camera_platform",
},
.probe = soc_camera_platform_probe,
.remove = soc_camera_platform_remove,
+ .id_table = soc_camera_platform_id,
};
static int __init soc_camera_platform_module_init(void)
{
- return platform_driver_register(&soc_camera_platform_driver);
+ return i2c_add_driver(&soc_camera_platform_driver);
}
static void __exit soc_camera_platform_module_exit(void)
{
- platform_driver_unregister(&soc_camera_platform_driver);
+ i2c_del_driver(&soc_camera_platform_driver);
}
module_init(soc_camera_platform_module_init);
@@ -206,3 +229,4 @@ module_exit(soc_camera_platform_module_exit);
MODULE_DESCRIPTION("SoC Camera Platform driver");
MODULE_AUTHOR("Magnus Damm");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:soc_camera_platform");
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index a399476..545303e 100644
--- a/drivers/media/video/tw9910.c
+++ b/drivers/media/video/tw9910.c
@@ -225,7 +225,7 @@ struct tw9910_hsync_ctrl {
struct tw9910_priv {
struct tw9910_video_info *info;
struct i2c_client *client;
- struct soc_camera_device icd;
+ struct soc_camera_device *icd;
const struct tw9910_scale_ctrl *scale;
};
@@ -511,35 +511,38 @@ tw9910_select_norm(struct soc_camera_device *icd, u32 width, u32 height)
*/
static int tw9910_init(struct soc_camera_device *icd)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret = 0;
- if (priv->info->link.power) {
- ret = priv->info->link.power(&priv->client->dev, 1);
+ if (icl->power) {
+ ret = icl->power(&client->dev, 1);
if (ret < 0)
return ret;
}
- if (priv->info->link.reset)
- ret = priv->info->link.reset(&priv->client->dev);
+ if (icl->reset)
+ ret = icl->reset(&client->dev);
return ret;
}
static int tw9910_release(struct soc_camera_device *icd)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
int ret = 0;
- if (priv->info->link.power)
- ret = priv->info->link.power(&priv->client->dev, 0);
+ if (icl->power)
+ ret = icl->power(&client->dev, 0);
return ret;
}
static int tw9910_start_capture(struct soc_camera_device *icd)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct tw9910_priv *priv = i2c_get_clientdata(client);
if (!priv->scale) {
dev_err(&icd->dev, "norm select error\n");
@@ -567,8 +570,9 @@ static int tw9910_set_bus_param(struct soc_camera_device *icd,
static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
- struct soc_camera_link *icl = priv->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct tw9910_priv *priv = i2c_get_clientdata(client);
+ struct soc_camera_link *icl = dev_get_drvdata(&icd->dev);
unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER |
SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH |
SOCAM_DATA_ACTIVE_HIGH | priv->info->buswidth;
@@ -610,13 +614,13 @@ static int tw9910_enum_input(struct soc_camera_device *icd,
static int tw9910_get_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
int ret;
if (reg->reg > 0xff)
return -EINVAL;
- ret = i2c_smbus_read_byte_data(priv->client, reg->reg);
+ ret = i2c_smbus_read_byte_data(client, reg->reg);
if (ret < 0)
return ret;
@@ -631,20 +635,21 @@ static int tw9910_get_register(struct soc_camera_device *icd,
static int tw9910_set_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
if (reg->reg > 0xff ||
reg->val > 0xff)
return -EINVAL;
- return i2c_smbus_write_byte_data(priv->client, reg->reg, reg->val);
+ return i2c_smbus_write_byte_data(client, reg->reg, reg->val);
}
#endif
static int tw9910_set_crop(struct soc_camera_device *icd,
struct v4l2_rect *rect)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct tw9910_priv *priv = i2c_get_clientdata(client);
int ret = -EINVAL;
u8 val;
@@ -658,8 +663,8 @@ static int tw9910_set_crop(struct soc_camera_device *icd,
/*
* reset hardware
*/
- tw9910_reset(priv->client);
- ret = tw9910_write_array(priv->client, tw9910_default_regs);
+ tw9910_reset(client);
+ ret = tw9910_write_array(client, tw9910_default_regs);
if (ret < 0)
goto tw9910_set_fmt_error;
@@ -670,7 +675,7 @@ static int tw9910_set_crop(struct soc_camera_device *icd,
if (SOCAM_DATAWIDTH_16 == priv->info->buswidth)
val = LEN;
- ret = tw9910_mask_set(priv->client, OPFORM, LEN, val);
+ ret = tw9910_mask_set(client, OPFORM, LEN, val);
if (ret < 0)
goto tw9910_set_fmt_error;
@@ -698,28 +703,28 @@ static int tw9910_set_crop(struct soc_camera_device *icd,
val = 0;
}
- ret = tw9910_mask_set(priv->client, VBICNTL, RTSEL_MASK, val);
+ ret = tw9910_mask_set(client, VBICNTL, RTSEL_MASK, val);
if (ret < 0)
goto tw9910_set_fmt_error;
/*
* set scale
*/
- ret = tw9910_set_scale(priv->client, priv->scale);
+ ret = tw9910_set_scale(client, priv->scale);
if (ret < 0)
goto tw9910_set_fmt_error;
/*
* set cropping
*/
- ret = tw9910_set_cropping(priv->client, &tw9910_cropping_ctrl);
+ ret = tw9910_set_cropping(client, &tw9910_cropping_ctrl);
if (ret < 0)
goto tw9910_set_fmt_error;
/*
* set hsync
*/
- ret = tw9910_set_hsync(priv->client, &tw9910_hsync_ctrl);
+ ret = tw9910_set_hsync(client, &tw9910_hsync_ctrl);
if (ret < 0)
goto tw9910_set_fmt_error;
@@ -727,7 +732,7 @@ static int tw9910_set_crop(struct soc_camera_device *icd,
tw9910_set_fmt_error:
- tw9910_reset(priv->client);
+ tw9910_reset(client);
priv->scale = NULL;
return ret;
@@ -786,7 +791,8 @@ static int tw9910_try_fmt(struct soc_camera_device *icd,
static int tw9910_video_probe(struct soc_camera_device *icd)
{
- struct tw9910_priv *priv = container_of(icd, struct tw9910_priv, icd);
+ struct i2c_client *client = to_i2c_client(icd->control);
+ struct tw9910_priv *priv = i2c_get_clientdata(client);
s32 val;
int ret;
@@ -810,10 +816,18 @@ static int tw9910_video_probe(struct soc_camera_device *icd)
icd->formats = tw9910_color_fmt;
icd->num_formats = ARRAY_SIZE(tw9910_color_fmt);
+ /* Switch master clock on */
+ ret = soc_camera_video_start(icd);
+ if (ret)
+ return ret;
+
/*
* check and show Product ID
*/
- val = i2c_smbus_read_byte_data(priv->client, ID);
+ val = i2c_smbus_read_byte_data(client, ID);
+
+ soc_camera_video_stop(icd);
+
if (0x0B != GET_ID(val) ||
0x00 != GET_ReV(val)) {
dev_err(&icd->dev,
@@ -824,10 +838,6 @@ static int tw9910_video_probe(struct soc_camera_device *icd)
dev_info(&icd->dev,
"tw9910 Product ID %0x:%0x\n", GET_ID(val), GET_ReV(val));
- ret = soc_camera_video_start(icd);
- if (ret < 0)
- return ret;
-
icd->vdev->tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL;
icd->vdev->current_norm = V4L2_STD_NTSC;
@@ -836,13 +846,11 @@ static int tw9910_video_probe(struct soc_camera_device *icd)
static void tw9910_video_remove(struct soc_camera_device *icd)
{
- soc_camera_video_stop(icd);
+ icd->ops = NULL;
}
static struct soc_camera_ops tw9910_ops = {
.owner = THIS_MODULE,
- .probe = tw9910_video_probe,
- .remove = tw9910_video_remove,
.init = tw9910_init,
.release = tw9910_release,
.start_capture = tw9910_start_capture,
@@ -871,16 +879,25 @@ static int tw9910_probe(struct i2c_client *client,
{
struct tw9910_priv *priv;
struct tw9910_video_info *info;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
+ struct i2c_adapter *adapter =
+ to_i2c_adapter(client->dev.parent);
+ struct soc_camera_link *icl;
const struct tw9910_scale_ctrl *scale;
int i, ret;
- info = client->dev.platform_data;
- if (!info)
+ if (!icd) {
+ dev_err(&client->dev, "TW9910: missing soc-camera data!\n");
+ return -EINVAL;
+ }
+
+ icl = dev_get_drvdata(&icd->dev);
+ if (!icl)
return -EINVAL;
- if (!i2c_check_functionality(to_i2c_adapter(client->dev.parent),
- I2C_FUNC_SMBUS_BYTE_DATA)) {
+ info = container_of(icl, struct tw9910_video_info, link);
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&client->dev,
"I2C-Adapter doesn't support "
"I2C_FUNC_SMBUS_BYTE_DATA\n");
@@ -895,9 +912,7 @@ static int tw9910_probe(struct i2c_client *client,
priv->client = client;
i2c_set_clientdata(client, priv);
- icd = &priv->icd;
icd->ops = &tw9910_ops;
- icd->control = &client->dev;
icd->iface = info->link.bus_id;
/*
@@ -923,8 +938,7 @@ static int tw9910_probe(struct i2c_client *client,
icd->height_min = min(scale[i].height, icd->height_min);
}
- ret = soc_camera_device_register(icd);
-
+ ret = tw9910_video_probe(icd);
if (ret) {
i2c_set_clientdata(client, NULL);
kfree(priv);
@@ -937,7 +951,7 @@ static int tw9910_remove(struct i2c_client *client)
{
struct tw9910_priv *priv = i2c_get_clientdata(client);
- soc_camera_device_unregister(&priv->icd);
+ tw9910_video_remove(priv->icd);
i2c_set_clientdata(client, NULL);
kfree(priv);
return 0;
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 3701368..f77ec19 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -12,6 +12,7 @@
#ifndef SOC_CAMERA_H
#define SOC_CAMERA_H
+#include <linux/i2c.h>
#include <linux/mutex.h>
#include <linux/pm.h>
#include <linux/videodev2.h>
@@ -97,6 +98,8 @@ struct soc_camera_link {
int bus_id;
/* Per camera SOCAM_SENSOR_* bus flags */
unsigned long flags;
+ int i2c_adapter_id;
+ struct i2c_board_info *board_info;
/* Optional callbacks to power on or off and reset the sensor */
int (*power)(struct device *, int);
int (*reset)(struct device *);
@@ -119,17 +122,15 @@ static inline struct soc_camera_host *to_soc_camera_host(struct device *dev)
return container_of(dev, struct soc_camera_host, dev);
}
-extern int soc_camera_host_register(struct soc_camera_host *ici);
-extern void soc_camera_host_unregister(struct soc_camera_host *ici);
-extern int soc_camera_device_register(struct soc_camera_device *icd);
-extern void soc_camera_device_unregister(struct soc_camera_device *icd);
+int soc_camera_host_register(struct soc_camera_host *ici);
+void soc_camera_host_unregister(struct soc_camera_host *ici);
-extern int soc_camera_video_start(struct soc_camera_device *icd);
-extern void soc_camera_video_stop(struct soc_camera_device *icd);
+int soc_camera_video_start(struct soc_camera_device *icd);
+void soc_camera_video_stop(struct soc_camera_device *icd);
-extern const struct soc_camera_data_format *soc_camera_format_by_fourcc(
+const struct soc_camera_data_format *soc_camera_format_by_fourcc(
struct soc_camera_device *icd, unsigned int fourcc);
-extern const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
+const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
struct soc_camera_device *icd, unsigned int fourcc);
struct soc_camera_data_format {
@@ -158,8 +159,6 @@ struct soc_camera_format_xlate {
struct soc_camera_ops {
struct module *owner;
- int (*probe)(struct soc_camera_device *);
- void (*remove)(struct soc_camera_device *);
int (*suspend)(struct soc_camera_device *, pm_message_t state);
int (*resume)(struct soc_camera_device *);
int (*init)(struct soc_camera_device *);
diff --git a/include/media/soc_camera_platform.h b/include/media/soc_camera_platform.h
index 1d092b4..db7ff89 100644
--- a/include/media/soc_camera_platform.h
+++ b/include/media/soc_camera_platform.h
@@ -14,13 +14,12 @@
#include <linux/videodev2.h>
struct soc_camera_platform_info {
- int iface;
- char *format_name;
+ const char *format_name;
unsigned long format_depth;
struct v4l2_pix_format format;
unsigned long bus_param;
- void (*power)(int);
int (*set_capture)(struct soc_camera_platform_info *info, int enable);
+ struct soc_camera_link link;
};
#endif /* __SOC_CAMERA_H__ */
--
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