This patch adds set_property handler for Gamma color correction and
enhancement capability at Pipe level on CHV/BSW platform. The set
function just attaches the Gamma blob to CRTC state, that later gets
committed using atomic path.
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
Signed-off-by: Kausal Malladi <Kausal.Malladi@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_atomic.c | 7 +++++++
drivers/gpu/drm/i915/intel_color_manager.c | 19 +++++++++++++++++++
drivers/gpu/drm/i915/intel_drv.h | 3 +++
3 files changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index d873bda..72d6b37 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -473,6 +473,13 @@ int intel_crtc_atomic_set_property(struct drm_crtc *crtc,
struct drm_property *property,
uint64_t val)
{
+ struct drm_device *dev = crtc->dev;
+ struct drm_mode_config *config = &dev->mode_config;
+
+ if (property == config->prop_palette_after_ctm)
+ return intel_color_manager_set_pipe_gamma(dev, state,
+ &crtc->base, val);
+
DRM_DEBUG_KMS("Unknown crtc property '%s'\n", property->name);
return -EINVAL;
}
diff --git a/drivers/gpu/drm/i915/intel_color_manager.c b/drivers/gpu/drm/i915/intel_color_manager.c
index def20d0f..70c0d42 100644
--- a/drivers/gpu/drm/i915/intel_color_manager.c
+++ b/drivers/gpu/drm/i915/intel_color_manager.c
@@ -27,6 +27,25 @@
#include "intel_color_manager.h"
+int intel_color_manager_set_pipe_gamma(struct drm_device *dev,
+ struct drm_crtc_state *crtc_state,
+ struct drm_mode_object *obj, uint32_t blob_id)
+{
+ struct drm_property_blob *blob;
+
+ blob = drm_property_lookup_blob(dev, blob_id);
+ if (!blob) {
+ DRM_ERROR("Invalid Blob ID\n");
+ return -EINVAL;
+ }
+
+ if (crtc_state->palette_after_ctm_blob)
+ drm_property_unreference_blob(crtc_state->palette_after_ctm_blob);
+
+ crtc_state->palette_after_ctm_blob = blob;
+ return 0;
+}
+
int get_chv_pipe_gamma_capabilities(struct drm_device *dev,
struct drm_palette_caps *palette_caps, struct drm_crtc *crtc)
{
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 1e61036..45c42f0 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1453,5 +1453,8 @@ extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
/* intel_color_manager.c */
void intel_attach_color_properties_to_crtc(struct drm_device *dev,
struct drm_mode_object *mode_obj);
+int intel_color_manager_set_pipe_gamma(struct drm_device *dev,
+ struct drm_crtc_state *crtc_state,
+ struct drm_mode_object *obj, uint32_t blob_id);
#endif /* __INTEL_DRV_H__ */
--
2.4.5
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