V4L/DVB (13665): sh_mobile_ceu_camera: Add support for sync polarity selection

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index df8dc1dde19f..a610a571432a 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -687,6 +687,23 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
         if (!common_flags)
                 return -EINVAL;
 
+        /* Make choises, based on platform preferences */
+        if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
+            (common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
+                if (pcdev->pdata->flags & SH_CEU_FLAG_HSYNC_LOW)
+                        common_flags &= ~SOCAM_HSYNC_ACTIVE_HIGH;
+                else
+                        common_flags &= ~SOCAM_HSYNC_ACTIVE_LOW;
+        }
+
+        if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
+            (common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
+                if (pcdev->pdata->flags & SH_CEU_FLAG_VSYNC_LOW)
+                        common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
+                else
+                        common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
+        }
+
         ret = icd->ops->set_bus_param(icd, common_flags);
         if (ret < 0)
                 return ret;