Signed-off-by: Swati Sharma <swati2.sharma@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 3 +++
drivers/gpu/drm/i915/intel_color.c | 39 ++++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c86cbc1..6e1fe5e 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10187,6 +10187,9 @@ enum skl_power_gate {
#define CGM_PIPE_MODE_GAMMA (1 << 2)
#define CGM_PIPE_MODE_CSC (1 << 1)
#define CGM_PIPE_MODE_DEGAMMA (1 << 0)
+#define CGM_PIPE_GAMMA_RED_MASK REG_GENMASK(9, 0)
+#define CGM_PIPE_GAMMA_GREEN_MASK REG_GENMASK(25, 16)
+#define CGM_PIPE_GAMMA_BLUE_MASK REG_GENMASK(9, 0)
#define _CGM_PIPE_B_CSC_COEFF01 (VLV_DISPLAY_BASE + 0x69900)
#define _CGM_PIPE_B_CSC_COEFF23 (VLV_DISPLAY_BASE + 0x69904)
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index b67ec22..2a69799 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -1277,6 +1277,44 @@ static void i9xx_get_color_config(struct intel_crtc_state *crtc_state)
i9xx_get_config_internal(crtc_state);
}
+static void cherryview_get_gamma_config(struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ u32 i, val, lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size;
+ enum pipe pipe = crtc->pipe;
+ struct drm_property_blob *blob = NULL;
+ struct drm_color_lut *blob_data;
+
+ blob = drm_property_create_blob(dev,
+ sizeof(struct drm_color_lut) * 256,
+ NULL);
+ if (IS_ERR(blob))
+ return;
+
+ blob_data = blob->data;
+
+ for (i = 0; i < lut_size; i++) {
+ val = I915_READ(CGM_PIPE_GAMMA(pipe, i, 0));
+ blob_data[i].green = intel_color_lut_pack(REG_FIELD_GET(CGM_PIPE_GAMMA_GREEN_MASK, val) >> 16, 10);
+ blob_data[i].blue = intel_color_lut_pack(REG_FIELD_GET(CGM_PIPE_GAMMA_BLUE_MASK, val), 10);
+
+ val = I915_READ(CGM_PIPE_GAMMA(pipe, i, 1));
+ blob_data[i].red = intel_color_lut_pack(REG_FIELD_GET(CGM_PIPE_GAMMA_RED_MASK, val), 10);
+ }
+
+ crtc_state->base.gamma_lut = blob;
+}
+
+static void cherryview_get_color_config(struct intel_crtc_state *crtc_state)
+{
+ if (crtc_state->gamma_mode == GAMMA_MODE_MODE_8BIT)
+ i9xx_get_color_config(crtc_state);
+ else
+ cherryview_get_gamma_config(crtc_state);
+}
+
void intel_color_init(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
@@ -1289,6 +1327,7 @@ void intel_color_init(struct intel_crtc *crtc)
dev_priv->display.color_check = chv_color_check;
dev_priv->display.color_commit = i9xx_color_commit;
dev_priv->display.load_luts = cherryview_load_luts;
+ dev_priv->display.get_color_config = cherryview_get_color_config;
} else if (INTEL_GEN(dev_priv) >= 4) {
dev_priv->display.color_check = i9xx_color_check;
dev_priv->display.color_commit = i9xx_color_commit;
--
1.9.1
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