drm: sti: add cursor plane
stih407 SoC have a dedicated hardware cursor plane,
this patch enable it.
The hardware have a color look up table, fix it to
be able to use ARGB8888.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c
index 6bcdf3f..9a4ce74 100644
--- a/drivers/gpu/drm/sti/sti_mixer.c
+++ b/drivers/gpu/drm/sti/sti_mixer.c
@@ -45,6 +45,7 @@
#define GAM_CTL_GDP1_MASK BIT(4)
#define GAM_CTL_GDP2_MASK BIT(5)
#define GAM_CTL_GDP3_MASK BIT(6)
+#define GAM_CTL_CURSOR_MASK BIT(9)
const char *sti_mixer_to_str(struct sti_mixer *mixer)
{
@@ -127,6 +128,9 @@
case STI_VID_1:
layer_id = GAM_DEPTH_VID1_ID;
break;
+ case STI_CURSOR:
+ /* no need to set depth for cursor */
+ return 0;
default:
DRM_ERROR("Unknown layer %d\n", layer->desc);
return 1;
@@ -188,6 +192,8 @@
return GAM_CTL_VID0_MASK;
case STI_VID_1:
return GAM_CTL_VID1_MASK;
+ case STI_CURSOR:
+ return GAM_CTL_CURSOR_MASK;
default:
return 0;
}