This adds support for camera interface with the support for
following sensors:
- OV5640
- OV5650
Signed-off-by: Sergio Aguirre <saaguirre@xxxxxx>
---
arch/arm/mach-omap2/Kconfig | 16 ++
arch/arm/mach-omap2/Makefile | 1 +
arch/arm/mach-omap2/board-omap4panda-camera.c | 209 +++++++++++++++++++++++++
3 files changed, 226 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-omap2/board-omap4panda-camera.c
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 54645aa..4b267a6 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -359,6 +359,22 @@ config MACH_OMAP4_PANDA
select OMAP_PACKAGE_CBS
select REGULATOR_FIXED_VOLTAGE if REGULATOR
+config MACH_OMAP4_PANDA_CAMERA_SUPPORT
+ bool "OMAP4 Panda Board Camera support"
+ depends on MACH_OMAP4_PANDA
+ select MEDIA_SUPPORT
+ select MEDIA_CONTROLLER
+ select VIDEO_DEV
+ select VIDEO_V4L2_SUBDEV_API
+ select V4L_PLATFORM_DRIVERS
+ select VIDEO_OMAP4
+ select VIDEO_OV5640
+ select VIDEO_OV5650
+ help
+ Enable Camera HW support for PandaBoard.
+ This is for using the OMAP4 ISS CSI2A Camera sensor
+ interface.
+
config OMAP3_EMU
bool "OMAP3 debugging peripherals"
depends on ARCH_OMAP3
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index ebd8f63..e6724c4 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -240,6 +240,7 @@ obj-$(CONFIG_MACH_TI8148EVM) += board-ti8168evm.o
# Platform specific device init code
obj-$(CONFIG_MACH_OMAP_4430SDP_CAMERA_SUPPORT) += board-4430sdp-camera.o
+obj-$(CONFIG_MACH_OMAP4_PANDA_CAMERA_SUPPORT) += board-omap4panda-camera.o
omap-flash-$(CONFIG_MTD_NAND_OMAP2) := board-flash.o
omap-flash-$(CONFIG_MTD_ONENAND_OMAP2) := board-flash.o
diff --git a/arch/arm/mach-omap2/board-omap4panda-camera.c b/arch/arm/mach-omap2/board-omap4panda-camera.c
new file mode 100644
index 0000000..a5f7863
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap4panda-camera.c
@@ -0,0 +1,209 @@
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+
+#include <plat/i2c.h>
+#include <plat/omap-pm.h>
+
+#include <asm/mach-types.h>
+
+#include <media/ov5640.h>
+#include <media/ov5650.h>
+
+#include "devices.h"
+#include "../../../drivers/media/video/omap4iss/iss.h"
+
+#include "control.h"
+#include "mux.h"
+
+#define PANDA_GPIO_CAM_PWRDN 45
+#define PANDA_GPIO_CAM_RESET 83
+
+static struct clk *panda_cam_aux_clk;
+
+static int panda_ov_power(struct v4l2_subdev *subdev, int on)
+{
+ struct device *dev = subdev->v4l2_dev->dev;
+
+ if (on) {
+ int ret;
+
+ gpio_set_value(PANDA_GPIO_CAM_PWRDN, 0);
+ ret = clk_enable(panda_cam_aux_clk);
+ if (ret) {
+ dev_err(dev,
+ "Error in clk_enable() in %s(%d)\n",
+ __func__, on);
+ gpio_set_value(PANDA_GPIO_CAM_PWRDN, 1);
+ return ret;
+ }
+ mdelay(2);
+ } else {
+ clk_disable(panda_cam_aux_clk);
+ gpio_set_value(PANDA_GPIO_CAM_PWRDN, 1);
+ }
+
+ return 0;
+}
+
+#define OV5640_I2C_ADDRESS (0x3C)
+
+static struct ov5640_platform_data ov5640_platform_data = {
+ .s_power = panda_ov_power,
+};
+
+static struct i2c_board_info ov5640_camera_i2c_device = {
+ I2C_BOARD_INFO("ov5640", OV5640_I2C_ADDRESS),
+ .platform_data = &ov5640_platform_data,
+};
+
+#define OV5650_I2C_ADDRESS (0x36)
+
+static struct ov5650_platform_data ov5650_platform_data = {
+ .s_power = panda_ov_power,
+};
+
+static struct i2c_board_info ov5650_camera_i2c_device = {
+ I2C_BOARD_INFO("ov5650", OV5650_I2C_ADDRESS),
+ .platform_data = &ov5650_platform_data,
+};
+
+static struct iss_subdev_i2c_board_info ov5640_camera_subdevs[] = {
+ {
+ .board_info = &ov5640_camera_i2c_device,
+ .i2c_adapter_id = 3,
+ },
+ { NULL, 0, },
+};
+
+static struct iss_subdev_i2c_board_info ov5650_camera_subdevs[] = {
+ {
+ .board_info = &ov5650_camera_i2c_device,
+ .i2c_adapter_id = 3,
+ },
+ { NULL, 0, },
+};
+
+static struct iss_v4l2_subdevs_group panda_camera_subdevs[] = {
+ {
+ .subdevs = ov5640_camera_subdevs,
+ .interface = ISS_INTERFACE_CSI2A_PHY1,
+ .bus = { .csi2 = {
+ .lanecfg = {
+ .clk = {
+ .pol = 0,
+ .pos = 1,
+ },
+ .data[0] = {
+ .pol = 0,
+ .pos = 2,
+ },
+ },
+ } },
+ },
+ {
+ .subdevs = ov5650_camera_subdevs,
+ .interface = ISS_INTERFACE_CSI2A_PHY1,
+ .bus = { .csi2 = {
+ .lanecfg = {
+ .clk = {
+ .pol = 0,
+ .pos = 1,
+ },
+ .data[0] = {
+ .pol = 0,
+ .pos = 2,
+ },
+ },
+ } },
+ },
+ { },
+};
+
+static void panda_omap4iss_set_constraints(struct iss_device *iss, bool enable)
+{
+ if (!iss)
+ return;
+
+ /* FIXME: Look for something more precise as a good throughtput limit */
+ omap_pm_set_min_bus_tput(iss->dev, OCP_INITIATOR_AGENT,
+ enable ? 800000 : -1);
+}
+
+static struct iss_platform_data panda_iss_platform_data = {
+ .subdevs = panda_camera_subdevs,
+ .set_constraints = panda_omap4iss_set_constraints,
+};
+
+
+static struct omap_device_pad omap4iss_pads[] = {
+ {
+ .name = "csi21_dx0.csi21_dx0",
+ .enable = OMAP_MUX_MODE0 | OMAP_INPUT_EN,
+ },
+ {
+ .name = "csi21_dy0.csi21_dy0",
+ .enable = OMAP_MUX_MODE0 | OMAP_INPUT_EN,
+ },
+ {
+ .name = "csi21_dx1.csi21_dx1",
+ .enable = OMAP_MUX_MODE0 | OMAP_INPUT_EN,
+ },
+ {
+ .name = "csi21_dy1.csi21_dy1",
+ .enable = OMAP_MUX_MODE0 | OMAP_INPUT_EN,
+ },
+ {
+ .name = "csi21_dx2.csi21_dx2",
+ .enable = OMAP_MUX_MODE0 | OMAP_INPUT_EN,
+ },
+ {
+ .name = "csi21_dy2.csi21_dy2",
+ .enable = OMAP_MUX_MODE0 | OMAP_INPUT_EN,
+ },
+};
+
+static struct omap_board_data omap4iss_data = {
+ .id = 1,
+ .pads = omap4iss_pads,
+ .pads_cnt = ARRAY_SIZE(omap4iss_pads),
+};
+
+static int __init panda_camera_init(void)
+{
+ if (!machine_is_omap4_panda())
+ return 0;
+
+ panda_cam_aux_clk = clk_get(NULL, "auxclk1_ck");
+ if (IS_ERR(panda_cam_aux_clk)) {
+ printk(KERN_ERR "Unable to get auxclk1_ck\n");
+ return -ENODEV;
+ }
+
+ if (clk_set_rate(panda_cam_aux_clk,
+ clk_round_rate(panda_cam_aux_clk, 24000000)))
+ return -EINVAL;
+
+ /* Select GPIO 45 */
+ omap_mux_init_gpio(PANDA_GPIO_CAM_PWRDN, OMAP_PIN_OUTPUT);
+
+ /* Select GPIO 83 */
+ omap_mux_init_gpio(PANDA_GPIO_CAM_RESET, OMAP_PIN_OUTPUT);
+
+ /* Init FREF_CLK1_OUT */
+ omap_mux_init_signal("fref_clk1_out", OMAP_PIN_OUTPUT);
+
+ if (gpio_request_one(PANDA_GPIO_CAM_PWRDN, GPIOF_OUT_INIT_HIGH,
+ "CAM_PWRDN"))
+ printk(KERN_WARNING "Cannot request GPIO %d\n",
+ PANDA_GPIO_CAM_PWRDN);
+
+ if (gpio_request_one(PANDA_GPIO_CAM_RESET, GPIOF_OUT_INIT_HIGH,
+ "CAM_RESET"))
+ printk(KERN_WARNING "Cannot request GPIO %d\n",
+ PANDA_GPIO_CAM_RESET);
+
+ omap4_init_camera(&panda_iss_platform_data, &omap4iss_data);
+ return 0;
+}
+late_initcall(panda_camera_init);
--
1.7.5.4
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