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authorInki Dae <inki.dae@samsung.com>2013-08-20 14:28:56 +0900
committerInki Dae <inki.dae@samsung.com>2013-09-05 13:43:44 +0900
commit5cc4621a17b1e63738658a93b9a5667c876a22e4 (patch)
tree0e6380d347be8c8229e4fc8996c0cff1c91345a9
parenta4f38a80f62bb613525563860cbca87f583081b5 (diff)
downloadlinux-5cc4621a17b1e63738658a93b9a5667c876a22e4.tar.bz2
drm/exynos: check a pixel format to a particular window layer
This patch checks if a requested window supports alpha channel or not. In case of s3c64xx, window 0 doesn't support alpha channel so if the request pixel format is ARGB8888 then change it to XRGB8888. Signed-off-by: Inki Dae <inki.dae@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_fimd.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 13d5afbc0dfd..f8889d28382d 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -66,11 +66,13 @@ struct fimd_driver_data {
unsigned int has_shadowcon:1;
unsigned int has_clksel:1;
+ unsigned int has_limited_fmt:1;
};
static struct fimd_driver_data s3c64xx_fimd_driver_data = {
.timing_base = 0x0,
.has_clksel = 1,
+ .has_limited_fmt = 1,
};
static struct fimd_driver_data exynos4_fimd_driver_data = {
@@ -420,6 +422,15 @@ static void fimd_win_set_pixfmt(struct device *dev, unsigned int win)
val = WINCONx_ENWIN;
+ /*
+ * In case of s3c64xx, window 0 doesn't support alpha channel.
+ * So the request format is ARGB8888 then change it to XRGB8888.
+ */
+ if (ctx->driver_data->has_limited_fmt && !win) {
+ if (win_data->pixel_format == DRM_FORMAT_ARGB8888)
+ win_data->pixel_format = DRM_FORMAT_XRGB8888;
+ }
+
switch (win_data->pixel_format) {
case DRM_FORMAT_C8:
val |= WINCON0_BPPMODE_8BPP_PALETTE;