[PATCH 4/9] drm/i915: Expose C8 on VLV/CHV sprite planes

[Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>]

From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

VLV/CHV sprite planes also support the C8 format. Let's expose that.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_sprite.c | 6 ++++++
 drivers/gpu/drm/i915/i915_reg.h             | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index fb36da58390a..4cd0982dc8a2 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -846,6 +846,9 @@ static u32 vlv_sprite_ctl(const struct intel_crtc_state *crtc_state,
 	case DRM_FORMAT_VYUY:
 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
 		break;
+	case DRM_FORMAT_C8:
+		sprctl |= SP_FORMAT_8BPP;
+		break;
 	case DRM_FORMAT_RGB565:
 		sprctl |= SP_FORMAT_BGR565;
 		break;
@@ -2010,6 +2013,7 @@ static const u32 snb_plane_formats[] = {
 };
 
 static const u32 vlv_plane_formats[] = {
+	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_ABGR8888,
 	DRM_FORMAT_ARGB8888,
@@ -2024,6 +2028,7 @@ static const u32 vlv_plane_formats[] = {
 };
 
 static const u32 chv_pipe_b_sprite_formats[] = {
+	DRM_FORMAT_C8,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_ABGR8888,
 	DRM_FORMAT_ARGB8888,
@@ -2256,6 +2261,7 @@ static bool vlv_sprite_format_mod_supported(struct drm_plane *_plane,
 	}
 
 	switch (format) {
+	case DRM_FORMAT_C8:
 	case DRM_FORMAT_RGB565:
 	case DRM_FORMAT_ABGR8888:
 	case DRM_FORMAT_ARGB8888:
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 74bb5a6cbe4f..577468928ffa 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6546,6 +6546,7 @@ enum {
 #define   SP_GAMMA_ENABLE		(1 << 30)
 #define   SP_PIXFORMAT_MASK		(0xf << 26)
 #define   SP_FORMAT_YUV422		(0x0 << 26)
+#define   SP_FORMAT_8BPP		(0x2 << 26)
 #define   SP_FORMAT_BGR565		(0x5 << 26)
 #define   SP_FORMAT_BGRX8888		(0x6 << 26)
 #define   SP_FORMAT_BGRA8888		(0x7 << 26)
-- 
2.21.0

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