recipes/linux/linux-omap-2.6.39/camera/0002-OMAP3BEAGLE-Add-support-for-mt9p031-sensor-driver.patch

   1 From 186ab3a6cd3f1751b4e60044d8207eb95c4b224a Mon Sep 17 00:00:00 2001
   2 From: Javier Martin <javier.martin@vista-silicon.com>
   3 Date: Wed, 25 May 2011 10:09:23 +0200
   4 Subject: [PATCH 2/4] OMAP3BEAGLE: Add support for mt9p031 sensor driver.
   5
   6 isp.h file has to be included as a temporal measure
   7 since clocks of the isp are not exposed yet.
   8
   9 Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
  10 ---
  11  arch/arm/mach-omap2/board-omap3beagle.c |   73 ++++++++++++++++++++++++++++++-
  12  1 files changed, 72 insertions(+), 1 deletions(-)
  13
  14 diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
  15 index 221bfda..9af1cf8 100644
  16 --- a/arch/arm/mach-omap2/board-omap3beagle.c
  17 +++ b/arch/arm/mach-omap2/board-omap3beagle.c
  18 @@ -25,15 +25,21 @@
  19  #include <linux/input.h>
  20  #include <linux/gpio_keys.h>
  21  #include <linux/opp.h>
  22 +#include <linux/i2c.h>
  23 +#include <linux/mm.h>
  24 +#include <linux/videodev2.h>
  25
  26  #include <linux/mtd/mtd.h>
  27  #include <linux/mtd/partitions.h>
  28  #include <linux/mtd/nand.h>
  29  #include <linux/mmc/host.h>
  30
  31 +#include <linux/gpio.h>
  32  #include <linux/regulator/machine.h>
  33  #include <linux/i2c/twl.h>
  34
  35 +#include <media/mt9p031.h>
  36 +
  37  #include <mach/hardware.h>
  38  #include <asm/mach-types.h>
  39  #include <asm/mach/arch.h>
  40 @@ -48,11 +54,17 @@
  41  #include <plat/nand.h>
  42  #include <plat/usb.h>
  43  #include <plat/omap_device.h>
  44 +#include <plat/i2c.h>
  45
  46  #include "mux.h"
  47  #include "hsmmc.h"
  48  #include "timer-gp.h"
  49  #include "pm.h"
  50 +#include "devices.h"
  51 +#include "../../../drivers/media/video/omap3isp/isp.h"
  52 +
  53 +#define MT9P031_RESET_GPIO     98
  54 +#define MT9P031_XCLK           ISP_XCLK_A
  55
  56  #define NAND_BLOCK_SIZE                SZ_128K
  57
  58 @@ -734,7 +746,7 @@ static int __init omap3_beagle_i2c_init(void)
  59  {
  60         omap_register_i2c_bus(1, 2600, beagle_i2c1_boardinfo,
  61                         ARRAY_SIZE(beagle_i2c1_boardinfo));
  62 -       omap_register_i2c_bus(2, 400,  beagle_i2c2_boardinfo,
  63 +       omap_register_i2c_bus(2, 100,  beagle_i2c2_boardinfo,
  64                         ARRAY_SIZE(beagle_i2c2_boardinfo));
  65         /* Bus 3 is attached to the DVI port where devices like the pico DLP
  66          * projector don't work reliably with 400kHz */
  67 @@ -935,6 +947,60 @@ static void __init beagle_opp_init(void)
  68         return;
  69  }
  70
  71 +static int beagle_cam_set_xclk(struct v4l2_subdev *subdev, int hz)
  72 +{
  73 +       struct isp_device *isp = v4l2_dev_to_isp_device(subdev->v4l2_dev);
  74 +       int ret;
  75 +
  76 +       ret = isp->platform_cb.set_xclk(isp, hz, MT9P031_XCLK);
  77 +       return 0;
  78 +}
  79 +
  80 +static int beagle_cam_reset(struct v4l2_subdev *subdev, int active)
  81 +{
  82 +       /* Set RESET_BAR to !active */
  83 +       gpio_set_value(MT9P031_RESET_GPIO, !active);
  84 +
  85 +       return 0;
  86 +}
  87 +
  88 +static struct mt9p031_platform_data beagle_mt9p031_platform_data = {
  89 +       .set_xclk               = beagle_cam_set_xclk,
  90 +       .reset                  = beagle_cam_reset,
  91 +};
  92 +
  93 +static struct i2c_board_info mt9p031_camera_i2c_device = {
  94 +       I2C_BOARD_INFO("mt9p031", 0x48),
  95 +       .platform_data = &beagle_mt9p031_platform_data,
  96 +};
  97 +
  98 +static struct isp_subdev_i2c_board_info mt9p031_camera_subdevs[] = {
  99 +       {
 100 +               .board_info = &mt9p031_camera_i2c_device,
 101 +               .i2c_adapter_id = 2,
 102 +       },
 103 +       { NULL, 0, },
 104 +};
 105 +
 106 +static struct isp_v4l2_subdevs_group beagle_camera_subdevs[] = {
 107 +       {
 108 +               .subdevs = mt9p031_camera_subdevs,
 109 +               .interface = ISP_INTERFACE_PARALLEL,
 110 +               .bus = {
 111 +                       .parallel = {
 112 +                               .data_lane_shift = 0,
 113 +                               .clk_pol = 1,
 114 +                               .bridge = ISPCTRL_PAR_BRIDGE_DISABLE,
 115 +                       }
 116 +               },
 117 +       },
 118 +       { },
 119 +};
 120 +
 121 +static struct isp_platform_data beagle_isp_platform_data = {
 122 +       .subdevs = beagle_camera_subdevs,
 123 +};
 124 +
 125  static void __init omap3_beagle_init(void)
 126  {
 127         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 128 @@ -1024,6 +1090,11 @@ static void __init omap3_beagle_init(void)
 129
 130         beagle_display_init();
 131         beagle_opp_init();
 132 +
 133 +       /* Enable camera */
 134 +       gpio_request(MT9P031_RESET_GPIO, "cam_rst");
 135 +       gpio_direction_output(MT9P031_RESET_GPIO, 0);
 136 +       omap3_init_camera(&beagle_isp_platform_data);
 137  }
 138
 139  early_param("buddy", expansionboard_setup);
 140 --
 141 1.6.6.1
 142