From: Dominic Curran <dcur...@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.ho...@hp.com>
Signed-off-by: Dominic Curran <dcur...@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)
--
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