From: Dominic Curran <dcur...@ti.com>
Subject: [OMAPZOOM][PATCH 6/6] Add support for Sony imx046 to OMAP zoom2 board.

Support for the Sony IMX046 sensor on the OMAP Zoom2 board.

Signed-off-by: Dominic Curran <dcur...@ti.com>
---
 arch/arm/configs/omap_zoom2_defconfig |    1 
 arch/arm/mach-omap2/board-zoom2.c     |  206 +++++++++++++++++++++++++++++++++-
 2 files changed, 205 insertions(+), 2 deletions(-)

Index: omapzoom04/arch/arm/configs/omap_zoom2_defconfig
===================================================================
--- omapzoom04.orig/arch/arm/configs/omap_zoom2_defconfig
+++ omapzoom04/arch/arm/configs/omap_zoom2_defconfig
@@ -994,6 +994,7 @@ CONFIG_VIDEO_CAPTURE_DRIVERS=y
 # CONFIG_VIDEO_MT9P012 is not set
 # CONFIG_VIDEO_DW9710 is not set
 # CONFIG_VIDEO_OV3640 is not set
+CONFIG_VIDEO_IMX046=y
 # CONFIG_VIDEO_SAA711X is not set
 # CONFIG_VIDEO_SAA717X is not set
 # CONFIG_VIDEO_TVP5150 is not set
Index: omapzoom04/arch/arm/mach-omap2/board-zoom2.c
===================================================================
--- omapzoom04.orig/arch/arm/mach-omap2/board-zoom2.c
+++ omapzoom04/arch/arm/mach-omap2/board-zoom2.c
@@ -23,6 +23,7 @@
 #include <linux/synaptics_i2c_rmi.h>
 #include <linux/spi/spi.h>
 #include <linux/i2c/twl4030.h>
+#include <linux/mm.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -50,6 +51,30 @@
 #include <mach/prcm_34xx.h>
 #endif
 
+#ifdef CONFIG_VIDEO_OMAP3
+#include <media/v4l2-int-device.h>
+#include <../drivers/media/video/omap34xxcam.h>
+#include <../drivers/media/video/isp/ispreg.h>
+#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
+#ifndef CONFIG_TWL4030_CORE
+#error "no power companion board defined!"
+#endif
+#endif
+#endif
+
 #ifdef CONFIG_TOUCHSCREEN_SYNAPTICS
 #define OMAP_SYNAPTICS_GPIO            163
 #endif
@@ -301,6 +326,175 @@ static struct twl4030_keypad_data ldp_kp
        .irq            = TWL4030_MODIRQ_KEYPAD,
 };
 
+#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 zoom2_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 int __init msecure_init(void)
 {
        int ret = 0;
@@ -506,15 +700,23 @@ static struct synaptics_i2c_rmi_platform
        .version        = 0,
        .power          = &synaptics_power,
 };
+#endif
 
 static struct i2c_board_info __initdata zoom2_i2c_bus2_info[] = {
+#ifdef CONFIG_TOUCHSCREEN_SYNAPTICS
        {
                I2C_BOARD_INFO(SYNAPTICS_I2C_RMI_NAME,  SYNAPTICS_I2C_ADDR),
                .platform_data = &ldp3430_synaptics_platform_data,
                .irq = 0,
        },
-};
 #endif
+#if defined(CONFIG_VIDEO_IMX046) || defined(CONFIG_VIDEO_IMX046_MODULE)
+       {
+               I2C_BOARD_INFO("imx046", IMX046_I2C_ADDR),
+               .platform_data = &zoom2_imx046_platform_data,
+       },
+#endif
+};
 
 static int __init omap_i2c_init(void)
 {
@@ -522,9 +724,9 @@ static int __init omap_i2c_init(void)
                        ARRAY_SIZE(zoom2_i2c_bus1_info));
 #ifdef CONFIG_TOUCHSCREEN_SYNAPTICS
        zoom2_i2c_bus2_info[0].irq = OMAP_GPIO_IRQ(OMAP_SYNAPTICS_GPIO);
+#endif
        omap_register_i2c_bus(2, 100, zoom2_i2c_bus2_info,
                        ARRAY_SIZE(zoom2_i2c_bus2_info));
-#endif
        omap_register_i2c_bus(3, 400, NULL, 0);
        return 0;
 }
--
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