[PATCH 14/23] drm/i915: CHV: Load degamma color correction values

[Shashank Sharma]

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 at intel.com>
---
 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