drm/i915/color: move check of gamma_enable to specific func/platform
Moved common code to check gamma_enable to specific funcs per platform
in bit_precision func. icl doesn't support that and chv has separate
enable knob for CGM LUT.
v2:
-Simplified chv_gamma_precision() [Ville]
Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009065542.27415-3-swati2.sharma@intel.com
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 08d020d..fa44eb7 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -1420,6 +1420,9 @@
static int i9xx_gamma_precision(const struct intel_crtc_state *crtc_state)
{
+ if (!crtc_state->gamma_enable)
+ return 0;
+
switch (crtc_state->gamma_mode) {
case GAMMA_MODE_MODE_8BIT:
return 8;
@@ -1433,6 +1436,9 @@
static int ilk_gamma_precision(const struct intel_crtc_state *crtc_state)
{
+ if (!crtc_state->gamma_enable)
+ return 0;
+
if ((crtc_state->csc_mode & CSC_POSITION_BEFORE_GAMMA) == 0)
return 0;
@@ -1457,6 +1463,9 @@
static int glk_gamma_precision(const struct intel_crtc_state *crtc_state)
{
+ if (!crtc_state->gamma_enable)
+ return 0;
+
switch (crtc_state->gamma_mode) {
case GAMMA_MODE_MODE_8BIT:
return 8;
@@ -1473,9 +1482,6 @@
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- if (!crtc_state->gamma_enable)
- return 0;
-
if (HAS_GMCH(dev_priv)) {
if (IS_CHERRYVIEW(dev_priv))
return chv_gamma_precision(crtc_state);
