From: Muralidharan Karicheri <m-karicheri2@xxxxxx>
Incorporated some minor comments against v1 of the patch. In addition added
support for clock configuration.
NOTE: depends on vpfe capture initial set of patches which are merged to v4l-dvb
linux-next repository.
Reviewed-by: Hans Verkuil <hverkuil@xxxxxxxxx>
Signed-off-by: Muralidharan Karicheri <m-karicheri2@xxxxxx>
---
Applies to DaVinci tree
arch/arm/mach-davinci/board-dm355-evm.c | 140 +++++++++++++++++++++++++++++-
arch/arm/mach-davinci/board-dm644x-evm.c | 6 +-
2 files changed, 140 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index af09de4..f683559 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -24,6 +24,7 @@
#include <media/tvp514x.h>
#include <linux/spi/spi.h>
#include <linux/spi/eeprom.h>
+#include <linux/i2c/dm355evm_msp.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
@@ -138,14 +139,58 @@ static void dm355evm_mmcsd_gpios(unsigned gpio)
dm355evm_mmc_gpios = gpio;
}
+#define PCA9543A_I2C_ADDR (0x73)
+
+static struct i2c_client *pca9543a;
+
+static int pca9543a_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ pca9543a = client;
+ return 0;
+}
+
+static int pca9543a_remove(struct i2c_client *client)
+{
+ pca9543a = NULL;
+ return 0;
+}
+
+static const struct i2c_device_id pca9543a_ids[] = {
+ { "PCA9543A", 0, },
+ { /* end of list */ },
+};
+
+/* This is for i2c driver for the MT9T031 header i2c switch */
+static struct i2c_driver pca9543a_driver = {
+ .driver.name = "PCA9543A",
+ .id_table = pca9543a_ids,
+ .probe = pca9543a_probe,
+ .remove = pca9543a_remove,
+};
+
static struct i2c_board_info dm355evm_i2c_info[] = {
{ I2C_BOARD_INFO("dm355evm_msp", 0x25),
.platform_data = dm355evm_mmcsd_gpios,
},
+ {
+ I2C_BOARD_INFO("PCA9543A", 0x73),
+ },
/* { plus irq }, */
/* { I2C_BOARD_INFO("tlv320aic3x", 0x1b), }, */
};
+/* have_sensor() - Check if we have support for sensor interface */
+static inline int have_sensor(void)
+{
+#if defined(CONFIG_SOC_CAMERA_MT9T031) || \
+ defined(CONFIG_SOC_CAMERA_MT9T031_MODULE)
+ return 1;
+#else
+ return 0;
+#endif
+}
+
static void __init evm_init_i2c(void)
{
davinci_init_i2c(&i2c_pdata);
@@ -153,7 +198,8 @@ static void __init evm_init_i2c(void)
gpio_request(5, "dm355evm_msp");
gpio_direction_input(5);
dm355evm_i2c_info[0].irq = gpio_to_irq(5);
-
+ if (have_sensor())
+ i2c_add_driver(&pca9543a_driver);
i2c_register_board_info(1, dm355evm_i2c_info,
ARRAY_SIZE(dm355evm_i2c_info));
}
@@ -182,6 +228,72 @@ static struct platform_device dm355evm_dm9000 = {
.num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc),
};
+/**
+ * dm355_enable_i2c_switch() - Enable/Disable I2C switch PCA9543A for sensor
+ * @en: enable/disbale flag
+ */
+static int dm355evm_enable_i2c_switch(int en)
+{
+ static char val = 1;
+ int status;
+ struct i2c_msg msg = {
+ .flags = 0,
+ .len = 1,
+ .buf = &val,
+ };
+
+ if (!en)
+ val = 0;
+
+ if (!pca9543a)
+ return -ENXIO;
+
+ msg.addr = pca9543a->addr;
+ /* turn i2c switch, pca9543a, on/off */
+ status = i2c_transfer(pca9543a->adapter, &msg, 1);
+ return status;
+}
+
+/**
+ * dm355evm_setup_video_input() - setup video data path and i2c
+ * @id: sub device id
+ */
+static int dm355evm_setup_video_input(enum vpfe_subdev_id id)
+{
+ int ret;
+
+ switch (id) {
+ case VPFE_SUBDEV_MT9T031:
+ {
+ ret = dm355evm_msp_write(MSP_VIDEO_IMAGER,
+ DM355EVM_MSP_VIDEO_IN);
+ if (ret >= 0)
+ ret = dm355evm_enable_i2c_switch(1);
+ else
+ /* switch off i2c switch since we failed */
+ ret = dm355evm_enable_i2c_switch(0);
+ break;
+ }
+ case VPFE_SUBDEV_TVP5146:
+ {
+ ret = dm355evm_msp_write(0, DM355EVM_MSP_VIDEO_IN);
+ break;
+ }
+ default:
+ return -EINVAL;
+ }
+ return (ret >= 0 ? 0 : ret);
+}
+
+/* Input available at the mt9t031 */
+static struct v4l2_input mt9t031_inputs[] = {
+ {
+ .index = 0,
+ .name = "Camera",
+ .type = V4L2_INPUT_TYPE_CAMERA,
+ }
+};
+
static struct tvp514x_platform_data tvp5146_pdata = {
.clk_polarity = 0,
.hs_polarity = 1,
@@ -205,7 +317,7 @@ static struct v4l2_input tvp5146_inputs[] = {
},
};
-/*
+/**
* this is the route info for connecting each input to decoder
* ouput that goes to vpfe. There is a one to one correspondence
* with tvp5146_inputs
@@ -223,8 +335,8 @@ static struct vpfe_route tvp5146_routes[] = {
static struct vpfe_subdev_info vpfe_sub_devs[] = {
{
- .name = "tvp5146",
- .grp_id = 0,
+ .module_name = TVP514X_MODULE_NAME,
+ .grp_id = VPFE_SUBDEV_TVP5146,
.num_inputs = ARRAY_SIZE(tvp5146_inputs),
.inputs = tvp5146_inputs,
.routes = tvp5146_routes,
@@ -238,6 +350,23 @@ static struct vpfe_subdev_info vpfe_sub_devs[] = {
I2C_BOARD_INFO("tvp5146", 0x5d),
.platform_data = &tvp5146_pdata,
},
+ },
+ {
+ .module_name = "mt9t031",
+ .is_camera = 1,
+ .grp_id = VPFE_SUBDEV_MT9T031,
+ .num_inputs = ARRAY_SIZE(mt9t031_inputs),
+ .inputs = mt9t031_inputs,
+ .ccdc_if_params = {
+ .if_type = VPFE_RAW_BAYER,
+ .hdpol = VPFE_PINPOL_POSITIVE,
+ .vdpol = VPFE_PINPOL_POSITIVE,
+ },
+ .board_info = {
+ I2C_BOARD_INFO("mt9t031", 0x5d),
+ /* this is for PCLK rising edge */
+ .platform_data = (void *)1,
+ },
}
};
@@ -246,6 +375,9 @@ static struct vpfe_config vpfe_cfg = {
.sub_devs = vpfe_sub_devs,
.card_name = "DM355 EVM",
.ccdc = "DM355 CCDC",
+ .num_clocks = 2,
+ .clocks = {"vpss_master", "vpss_slave"},
+ .setup_input = dm355evm_setup_video_input,
};
static struct platform_device *davinci_evm_devices[] __initdata = {
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 8cc6acd..cfd9afa 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -237,8 +237,8 @@ static struct vpfe_route tvp5146_routes[] = {
static struct vpfe_subdev_info vpfe_sub_devs[] = {
{
- .name = "tvp5146",
- .grp_id = 0,
+ .module_name = TVP514X_MODULE_NAME,
+ .grp_id = VPFE_SUBDEV_TVP5146,
.num_inputs = ARRAY_SIZE(tvp5146_inputs),
.inputs = tvp5146_inputs,
.routes = tvp5146_routes,
@@ -260,6 +260,8 @@ static struct vpfe_config vpfe_cfg = {
.sub_devs = vpfe_sub_devs,
.card_name = "DM6446 EVM",
.ccdc = "DM6446 CCDC",
+ .num_clocks = 2,
+ .clocks = {"vpss_master", "vpss_slave"},
};
static struct platform_device rtc_dev = {
--
1.6.0.4
--
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