V4L/DVB (10216): saa7127: fix broken S-Video with saa7129

Register 0x2d has to be set differently in the saa7129 compared to the
saa7127. This was not done correctly, so S-Video was broken in certain
circumstances.

This fixes a regression introduced in 2.6.28.

Signed-off-by: Martin Dauskardt <martin.dauskardt@gmx.de>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 30 insertions, 22 deletions

diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
index d6848f7a503b..05221d47dd4c 100644
--- a/drivers/media/video/saa7127.c
+++ b/drivers/media/video/saa7127.c
@@ -149,7 +149,7 @@ static const struct i2c_reg_value saa7127_init_config_common[] = {
         { SAA7127_REG_COPYGEN_0,                        0x77 },
         { SAA7127_REG_COPYGEN_1,                        0x41 },
         { SAA7127_REG_COPYGEN_2,                        0x00 }, /* Macrovision enable/disable */
-        { SAA7127_REG_OUTPUT_PORT_CONTROL,              0x9e },
+        { SAA7127_REG_OUTPUT_PORT_CONTROL,              0xbf },
         { SAA7127_REG_GAIN_LUMINANCE_RGB,               0x00 },
         { SAA7127_REG_GAIN_COLORDIFF_RGB,               0x00 },
         { SAA7127_REG_INPUT_PORT_CONTROL_1,             0x80 }, /* for color bars */
@@ -488,12 +488,18 @@ static int saa7127_set_output_type(struct v4l2_subdev *sd, int output)
                 break;
 
         case SAA7127_OUTPUT_TYPE_COMPOSITE:
-                state->reg_2d = 0x08;   /* 00001000 CVBS only, RGB DAC's off (high impedance mode) */
+                if (state->ident == V4L2_IDENT_SAA7129)
+                        state->reg_2d = 0x20;   /* CVBS only */
+                else
+                        state->reg_2d = 0x08;   /* 00001000 CVBS only, RGB DAC's off (high impedance mode) */
                 state->reg_3a = 0x13;   /* by default switch YUV to RGB-matrix on */
                 break;
 
         case SAA7127_OUTPUT_TYPE_SVIDEO:
-                state->reg_2d = 0xff;   /* 11111111  croma -> R, luma -> CVBS + G + B */
+                if (state->ident == V4L2_IDENT_SAA7129)
+                        state->reg_2d = 0x18;   /* Y + C */
+                else
+                        state->reg_2d = 0xff;   /*11111111  croma -> R, luma -> CVBS + G + B */
                 state->reg_3a = 0x13;   /* by default switch YUV to RGB-matrix on */
                 break;
 
@@ -508,7 +514,10 @@ static int saa7127_set_output_type(struct v4l2_subdev *sd, int output)
                 break;
 
         case SAA7127_OUTPUT_TYPE_BOTH:
-                state->reg_2d = 0xbf;
+                if (state->ident == V4L2_IDENT_SAA7129)
+                        state->reg_2d = 0x38;
+                else
+                        state->reg_2d = 0xbf;
                 state->reg_3a = 0x13;   /* by default switch YUV to RGB-matrix on */
                 break;
 
@@ -731,24 +740,6 @@ static int saa7127_probe(struct i2c_client *client,
                 return -ENODEV;
         }
 
-        /* Configure Encoder */
-
-        v4l2_dbg(1, debug, sd, "Configuring encoder\n");
-        saa7127_write_inittab(sd, saa7127_init_config_common);
-        saa7127_set_std(sd, V4L2_STD_NTSC);
-        saa7127_set_output_type(sd, SAA7127_OUTPUT_TYPE_BOTH);
-        saa7127_set_vps(sd, &vbi);
-        saa7127_set_wss(sd, &vbi);
-        saa7127_set_cc(sd, &vbi);
-        saa7127_set_xds(sd, &vbi);
-        if (test_image == 1)
-                /* The Encoder has an internal Colorbar generator */
-                /* This can be used for debugging */
-                saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_TEST_IMAGE);
-        else
-                saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_NORMAL);
-        saa7127_set_video_enable(sd, 1);
-
         if (id->driver_data) {  /* Chip type is already known */
                 state->ident = id->driver_data;
         } else {                /* Needs detection */
@@ -770,6 +761,23 @@ static int saa7127_probe(struct i2c_client *client,
 
         v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
                         client->addr << 1, client->adapter->name);
+
+        v4l2_dbg(1, debug, sd, "Configuring encoder\n");
+        saa7127_write_inittab(sd, saa7127_init_config_common);
+        saa7127_set_std(sd, V4L2_STD_NTSC);
+        saa7127_set_output_type(sd, SAA7127_OUTPUT_TYPE_BOTH);
+        saa7127_set_vps(sd, &vbi);
+        saa7127_set_wss(sd, &vbi);
+        saa7127_set_cc(sd, &vbi);
+        saa7127_set_xds(sd, &vbi);
+        if (test_image == 1)
+                /* The Encoder has an internal Colorbar generator */
+                /* This can be used for debugging */
+                saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_TEST_IMAGE);
+        else
+                saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_NORMAL);
+        saa7127_set_video_enable(sd, 1);
+
         if (state->ident == V4L2_IDENT_SAA7129)
                 saa7127_write_inittab(sd, saa7129_init_config_extra);
         return 0;