[media] s5p-tv: fix mbus configuration

This patch fixes mbus configuration between Mixer, SDO and HDMI.  The SDO
accepts only YUV444 on input. The HDMI in DVI mode accepts only RGB888. Now
Mixer is choosing proper output format depending on mbus format.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

4 files changed, 15 insertions, 2 deletions

diff --git a/drivers/media/video/s5p-tv/hdmi_drv.c b/drivers/media/video/s5p-tv/hdmi_drv.c
index e1b29b488f6..0279e6e89fe 100644
--- a/drivers/media/video/s5p-tv/hdmi_drv.c
+++ b/drivers/media/video/s5p-tv/hdmi_drv.c
@@ -440,6 +440,7 @@ static const struct hdmi_preset_conf hdmi_conf_480p = {
                 .height = 480,
                 .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */
                 .field = V4L2_FIELD_NONE,
+                .colorspace = V4L2_COLORSPACE_SRGB,
         },
 };
 
@@ -472,6 +473,7 @@ static const struct hdmi_preset_conf hdmi_conf_720p60 = {
                 .height = 720,
                 .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */
                 .field = V4L2_FIELD_NONE,
+                .colorspace = V4L2_COLORSPACE_SRGB,
         },
 };
 
@@ -504,6 +506,7 @@ static const struct hdmi_preset_conf hdmi_conf_1080p50 = {
                 .height = 1080,
                 .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */
                 .field = V4L2_FIELD_NONE,
+                .colorspace = V4L2_COLORSPACE_SRGB,
         },
 };
 
@@ -536,6 +539,7 @@ static const struct hdmi_preset_conf hdmi_conf_1080p60 = {
                 .height = 1080,
                 .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */
                 .field = V4L2_FIELD_NONE,
+                .colorspace = V4L2_COLORSPACE_SRGB,
         },
 };
 
diff --git a/drivers/media/video/s5p-tv/mixer_reg.c b/drivers/media/video/s5p-tv/mixer_reg.c
index 38dac672aa1..4800a3cbb29 100644
--- a/drivers/media/video/s5p-tv/mixer_reg.c
+++ b/drivers/media/video/s5p-tv/mixer_reg.c
@@ -90,7 +90,7 @@ void mxr_reg_reset(struct mxr_device *mdev)
         mxr_vsync_set_update(mdev, MXR_DISABLE);
 
         /* set output in RGB888 mode */
-        mxr_write(mdev, MXR_CFG, MXR_CFG_OUT_YUV444);
+        mxr_write(mdev, MXR_CFG, MXR_CFG_OUT_RGB888);
 
         /* 16 beat burst in DMA */
         mxr_write_mask(mdev, MXR_STATUS, MXR_STATUS_16_BURST,
@@ -376,6 +376,12 @@ void mxr_reg_set_mbus_fmt(struct mxr_device *mdev,
         spin_lock_irqsave(&mdev->reg_slock, flags);
         mxr_vsync_set_update(mdev, MXR_DISABLE);
 
+        /* selecting colorspace accepted by output */
+        if (fmt->colorspace == V4L2_COLORSPACE_JPEG)
+                val |= MXR_CFG_OUT_YUV444;
+        else
+                val |= MXR_CFG_OUT_RGB888;
+
         /* choosing between interlace and progressive mode */
         if (fmt->field == V4L2_FIELD_INTERLACED)
                 val |= MXR_CFG_SCAN_INTERLACE;
@@ -394,7 +400,8 @@ void mxr_reg_set_mbus_fmt(struct mxr_device *mdev,
         else
                 WARN(1, "unrecognized mbus height %u!\n", fmt->height);
 
-        mxr_write_mask(mdev, MXR_CFG, val, MXR_CFG_SCAN_MASK);
+        mxr_write_mask(mdev, MXR_CFG, val, MXR_CFG_SCAN_MASK |
+                MXR_CFG_OUT_MASK);
 
         val = (fmt->field == V4L2_FIELD_INTERLACED) ? ~0 : 0;
         vp_write_mask(mdev, VP_MODE, val,
diff --git a/drivers/media/video/s5p-tv/regs-mixer.h b/drivers/media/video/s5p-tv/regs-mixer.h
index 3c8442609c1..158abb43d0a 100644
--- a/drivers/media/video/s5p-tv/regs-mixer.h
+++ b/drivers/media/video/s5p-tv/regs-mixer.h
@@ -67,6 +67,7 @@
 /* bits for MXR_CFG */
 #define MXR_CFG_OUT_YUV444              (0 << 8)
 #define MXR_CFG_OUT_RGB888              (1 << 8)
+#define MXR_CFG_OUT_MASK                (1 << 8)
 #define MXR_CFG_DST_SDO                 (0 << 7)
 #define MXR_CFG_DST_HDMI                (1 << 7)
 #define MXR_CFG_DST_MASK                (1 << 7)
diff --git a/drivers/media/video/s5p-tv/sdo_drv.c b/drivers/media/video/s5p-tv/sdo_drv.c
index 4dddd6bd635..8cec67ef48c 100644
--- a/drivers/media/video/s5p-tv/sdo_drv.c
+++ b/drivers/media/video/s5p-tv/sdo_drv.c
@@ -170,6 +170,7 @@ static int sdo_g_mbus_fmt(struct v4l2_subdev *sd,
         fmt->height = sdev->fmt->height;
         fmt->code = V4L2_MBUS_FMT_FIXED;
         fmt->field = V4L2_FIELD_INTERLACED;
+        fmt->colorspace = V4L2_COLORSPACE_JPEG;
         return 0;
 }