[OMAPZOOM][PATCH v2 4/6] Add support for Sony imx046 to OMAP3430 SDP board.

[Dominic Curran <dcurran@ti.com>]

From: Dominic Curran <dcurran@ti.com>
Subject: [OMAPZOOM][PATCH v2 4/6] Add support for Sony imx046 to OMAP3430 SDP 
board.

Support for the Sony IMX046 sensor on the OMAP3430 SDP board.

Signed-off-by: Greg Hofer <greg.hofer@hp.com>
Signed-off-by: Dominic Curran <dcurran@ti.com>
---
 arch/arm/mach-omap2/board-3430sdp.c |  197 ++++++++++++++++++++++++++++++++++++
 1 file changed, 197 insertions(+)

Index: omapzoom04/arch/arm/mach-omap2/board-3430sdp.c
===================================================================
--- omapzoom04.orig/arch/arm/mach-omap2/board-3430sdp.c
+++ omapzoom04/arch/arm/mach-omap2/board-3430sdp.c
@@ -45,6 +45,9 @@
 #include "ti-compat.h"
 
 #ifdef CONFIG_VIDEO_OMAP3
+#ifndef CONFIG_TWL4030_CORE
+#error "no power companion board defined!"
+#endif
 #include <media/v4l2-int-device.h>
 #include <../drivers/media/video/omap34xxcam.h>
 #include <../drivers/media/video/isp/ispreg.h>
@@ -52,9 +55,11 @@
 #define FPGA_SPR_GPIO1_3v3	(0x1 << 14)
 #define FPGA_GPIO6_DIR_CTRL	(0x1 << 6)
 static void __iomem *fpga_map_addr;
+
 #if defined(CONFIG_VIDEO_MT9P012) || defined(CONFIG_VIDEO_MT9P012_MODULE)
 #include <../drivers/media/video/mt9p012.h>
 #endif
+
 #if defined(CONFIG_VIDEO_OV3640) || defined(CONFIG_VIDEO_OV3640_MODULE)
 #include <../drivers/media/video/ov3640.h>
 #include <../drivers/media/video/isp/ispcsi2.h>
@@ -71,6 +76,22 @@ static	struct omap34xxcam_hw_config *hwc
 #define OV3640_CSI2_PHY_TCLK_MISS	1
 #define OV3640_CSI2_PHY_TCLK_SETTLE	14
 #endif
+
+#if defined(CONFIG_VIDEO_IMX046) || defined(CONFIG_VIDEO_IMX046_MODULE)
+#include <../drivers/media/video/imx046.h>
+#include <../drivers/media/video/isp/ispcsi2.h>
+#define IMX046_CSI2_CLOCK_POLARITY	0	/* +/- pin order */
+#define IMX046_CSI2_DATA0_POLARITY	0	/* +/- pin order */
+#define IMX046_CSI2_DATA1_POLARITY	0	/* +/- pin order */
+#define IMX046_CSI2_CLOCK_LANE		1	 /* Clock lane position: 1 */
+#define IMX046_CSI2_DATA0_LANE		2	 /* Data0 lane position: 2 */
+#define IMX046_CSI2_DATA1_LANE		3	 /* Data1 lane position: 3 */
+#define IMX046_CSI2_PHY_THS_TERM	2
+#define IMX046_CSI2_PHY_THS_SETTLE	23
+#define IMX046_CSI2_PHY_TCLK_TERM	0
+#define IMX046_CSI2_PHY_TCLK_MISS	1
+#define IMX046_CSI2_PHY_TCLK_SETTLE	14
+#endif
 #endif
 
 #ifdef CONFIG_VIDEO_DW9710
@@ -926,6 +947,176 @@ static struct ov3640_platform_data sdp34
 
 #endif
 
+
+#if defined(CONFIG_VIDEO_IMX046) || defined(CONFIG_VIDEO_IMX046_MODULE)
+
+static struct omap34xxcam_sensor_config imx046_hwc = {
+	.sensor_isp  = 0,
+	.xclk        = OMAP34XXCAM_XCLK_B,
+	.capture_mem = PAGE_ALIGN(3280 * 2464 * 2) * 2,
+};
+
+static int imx046_sensor_set_prv_data(void *priv)
+{
+	struct omap34xxcam_hw_config *hwc = priv;
+
+	hwc->u.sensor.xclk 	= imx046_hwc.xclk;
+	hwc->u.sensor.sensor_isp = imx046_hwc.sensor_isp;
+	hwc->dev_index 		= 2;
+	hwc->dev_minor 		= 5;
+	hwc->dev_type		= OMAP34XXCAM_SLAVE_SENSOR;
+	hwc->interface_type 	= ISP_CSIA;
+
+	hwc->csi2.hw_csi2.lanes.clock.polarity   = IMX046_CSI2_CLOCK_POLARITY;
+	hwc->csi2.hw_csi2.lanes.clock.position   = IMX046_CSI2_CLOCK_LANE;
+	hwc->csi2.hw_csi2.lanes.data[0].polarity = IMX046_CSI2_DATA0_POLARITY;
+	hwc->csi2.hw_csi2.lanes.data[0].position = IMX046_CSI2_DATA0_LANE;
+	hwc->csi2.hw_csi2.lanes.data[1].polarity = IMX046_CSI2_DATA1_POLARITY;
+	hwc->csi2.hw_csi2.lanes.data[1].position = IMX046_CSI2_DATA1_LANE;
+	hwc->csi2.hw_csi2.phy.ths_term    = IMX046_CSI2_PHY_THS_TERM;
+	hwc->csi2.hw_csi2.phy.ths_settle  = IMX046_CSI2_PHY_THS_SETTLE;
+	hwc->csi2.hw_csi2.phy.tclk_term   = IMX046_CSI2_PHY_TCLK_TERM;
+	hwc->csi2.hw_csi2.phy.tclk_miss   = IMX046_CSI2_PHY_TCLK_MISS;
+	hwc->csi2.hw_csi2.phy.tclk_settle = IMX046_CSI2_PHY_TCLK_SETTLE;
+	return 0;
+}
+
+static struct isp_interface_config imx046_if_config = {
+	.ccdc_par_ser 		= ISP_CSIA,
+	.dataline_shift 	= 0x0,
+	.hsvs_syncdetect 	= ISPCTRL_SYNC_DETECT_VSRISE,
+	.vdint0_timing 		= 0x0,
+	.vdint1_timing 		= 0x0,
+	.strobe 		= 0x0,
+	.prestrobe 		= 0x0,
+	.shutter 		= 0x0,
+	.prev_sph 		= 2,
+	.prev_slv 		= 0,
+	.wenlog 		= ISPCCDC_CFG_WENLOG_OR,
+	.dcsub 			= IMX046_BLACK_LEVEL_AVG,
+	.u.csi.crc 		= 0x0,
+	.u.csi.mode 		= 0x0,
+	.u.csi.edge 		= 0x0,
+	.u.csi.signalling 	= 0x0,
+	.u.csi.strobe_clock_inv = 0x0,
+	.u.csi.vs_edge 		= 0x0,
+	.u.csi.channel 		= 0x0,
+	.u.csi.vpclk 		= 0x2,
+	.u.csi.data_start 	= 0x0,
+	.u.csi.data_size 	= 0x0,
+	.u.csi.format 		= V4L2_PIX_FMT_SGRBG10,
+};
+
+
+static int imx046_sensor_power_set(enum v4l2_power power)
+{
+	struct isp_csi2_lanes_cfg lanecfg;
+	struct isp_csi2_phy_cfg phyconfig;
+	static enum v4l2_power previous_power = V4L2_POWER_OFF;
+	int err = 0;
+
+	switch (power) {
+	case V4L2_POWER_ON:
+		/* Power Up Sequence */
+		printk(KERN_DEBUG "imx046_sensor_power_set(ON)\n");
+		if (previous_power == V4L2_POWER_OFF)
+			isp_csi2_reset();
+
+		lanecfg.clk.pol = IMX046_CSI2_CLOCK_POLARITY;
+		lanecfg.clk.pos = IMX046_CSI2_CLOCK_LANE;
+		lanecfg.data[0].pol = IMX046_CSI2_DATA0_POLARITY;
+		lanecfg.data[0].pos = IMX046_CSI2_DATA0_LANE;
+		lanecfg.data[1].pol = IMX046_CSI2_DATA1_POLARITY;
+		lanecfg.data[1].pos = IMX046_CSI2_DATA1_LANE;
+		lanecfg.data[2].pol = 0;
+		lanecfg.data[2].pos = 0;
+		lanecfg.data[3].pol = 0;
+		lanecfg.data[3].pos = 0;
+		isp_csi2_complexio_lanes_config(&lanecfg);
+		isp_csi2_complexio_lanes_update(true);
+
+		isp_csi2_ctrl_config_ecc_enable(true);
+
+		phyconfig.ths_term = IMX046_CSI2_PHY_THS_TERM;
+		phyconfig.ths_settle = IMX046_CSI2_PHY_THS_SETTLE;
+		phyconfig.tclk_term = IMX046_CSI2_PHY_TCLK_TERM;
+		phyconfig.tclk_miss = IMX046_CSI2_PHY_TCLK_MISS;
+		phyconfig.tclk_settle = IMX046_CSI2_PHY_TCLK_SETTLE;
+		isp_csi2_phy_config(&phyconfig);
+		isp_csi2_phy_update(true);
+
+		isp_configure_interface(&imx046_if_config);
+
+		if (previous_power == V4L2_POWER_OFF) {
+			/* Request and configure gpio pins */
+			if (omap_request_gpio(IMX046_RESET_GPIO) != 0)
+				return -EIO;
+
+			/* nRESET is active LOW. set HIGH to release reset */
+			omap_set_gpio_dataout(IMX046_RESET_GPIO, 1);
+
+			/* set to output mode */
+			omap_set_gpio_direction(IMX046_RESET_GPIO,
+				GPIO_DIR_OUTPUT);
+
+			/* turn on analog power */
+			twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+					VAUX_2_8_V, TWL4030_VAUX2_DEDICATED);
+			twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+					VAUX_DEV_GRP_P1, TWL4030_VAUX2_DEV_GRP);
+
+			twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+					VAUX_1_8_V, TWL4030_VAUX4_DEDICATED);
+			twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+					VAUX_DEV_GRP_P1, TWL4030_VAUX4_DEV_GRP);
+			udelay(100);
+
+			/* have to put sensor to reset to guarantee detection */
+			omap_set_gpio_dataout(IMX046_RESET_GPIO, 0);
+			udelay(1500);
+
+			/* nRESET is active LOW. set HIGH to release reset */
+			omap_set_gpio_dataout(IMX046_RESET_GPIO, 1);
+			udelay(300);
+		}
+		break;
+	case V4L2_POWER_OFF:
+		printk(KERN_DEBUG "imx046_sensor_power_set(OFF)\n");
+		/* Power Down Sequence */
+		isp_csi2_complexio_power(ISP_CSI2_POWER_OFF);
+
+		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+				VAUX_DEV_GRP_NONE, TWL4030_VAUX4_DEV_GRP);
+		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+				VAUX_DEV_GRP_NONE, TWL4030_VAUX2_DEV_GRP);
+		omap_free_gpio(IMX046_RESET_GPIO);
+		break;
+	case V4L2_POWER_STANDBY:
+		printk(KERN_DEBUG "imx046_sensor_power_set(STANDBY)\n");
+		/*TODO*/
+		break;
+	}
+
+	/* Save powerstate to know what was before calling POWER_ON. */
+	previous_power = power;
+	return err;
+}
+
+static struct imx046_platform_data sdp3430_imx046_platform_data = {
+	.power_set            = imx046_sensor_power_set,
+	.priv_data_set        = imx046_sensor_set_prv_data,
+	.default_regs         = NULL,
+	.set_xclk             = isp_set_xclk,
+	.cfg_interface_bridge = isp_configure_interface_bridge,
+	.csi2_lane_count      = isp_csi2_complexio_lanes_count,
+	.csi2_cfg_vp_out_ctrl = isp_csi2_ctrl_config_vp_out_ctrl,
+	.csi2_ctrl_update     = isp_csi2_ctrl_update,
+	.csi2_cfg_virtual_id  = isp_csi2_ctx_config_virtual_id,
+	.csi2_ctx_update      = isp_csi2_ctx_update,
+	.csi2_calc_phy_cfg0   = isp_csi2_calc_phy_cfg0,
+};
+#endif
+
 static struct platform_device sdp3430_lcd_device = {
 	.name		= "sdp2430_lcd",
 	.id		= -1,
@@ -1063,6 +1254,12 @@ static struct i2c_board_info __initdata 
 		.platform_data = &sdp3430_ov3640_platform_data,
 	},
 #endif
+#if defined(CONFIG_VIDEO_IMX046) || defined(CONFIG_VIDEO_IMX046_MODULE)
+	{
+		I2C_BOARD_INFO("imx046", IMX046_I2C_ADDR),
+		.platform_data = &sdp3430_imx046_platform_data,
+	},
+#endif
 };
 
 static int __init omap3430_i2c_init(void)