DRM color manager allows the driver to showcase its best color
correction capabilities using the cm_crtc_palette_capabilities_property.
This patch adds no of coefficitents for degamma color correction
modes possible in CHV, in device info structure, which is:
CGM Degamma(10 bit, CGM HW unit):- 65 coeff
These values will be loaded in cm_crtc_palette_capabilities_property
during the CRTC init section, by color manager's attach function.
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.c | 1 +
drivers/gpu/drm/i915/intel_color_manager.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 04a8e45..03db841 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -351,6 +351,7 @@ static const struct intel_device_info intel_cherryview_info = {
.need_gfx_hws = 1, .has_hotplug = 1,
.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
.num_samples_after_ctm = CHV_10BIT_GAMMA_MAX_VALS,
+ .num_samples_before_ctm = CHV_DEGAMMA_MAX_VALS,
.is_valleyview = 1,
.display_mmio_offset = VLV_DISPLAY_BASE,
GEN_CHV_PIPEOFFSETS,
diff --git a/drivers/gpu/drm/i915/intel_color_manager.h b/drivers/gpu/drm/i915/intel_color_manager.h
index 99ef646..402b825 100644
--- a/drivers/gpu/drm/i915/intel_color_manager.h
+++ b/drivers/gpu/drm/i915/intel_color_manager.h
@@ -30,3 +30,4 @@
#define COLOR_STRUCT_VERSION 1
#define CHV_10BIT_GAMMA_MAX_VALS 257
+#define CHV_DEGAMMA_MAX_VALS 65
--
1.9.1
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