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authorUma Shankar <uma.shankar@intel.com>2019-02-21 00:35:19 +0530
committerVille Syrjälä <ville.syrjala@linux.intel.com>2019-02-21 15:41:03 +0200
commit2a3902bd5c14a4946739c9da14071f5aa6e85549 (patch)
tree8dcf2f1deca0fe462bbc126b501f77f0a58c9176
parentc5568ed2bfdf0262cd48b5085a227c04a5556a01 (diff)
drm/i915/icl: Drop redundant gamma mode mask
gamma mode mask was not considering the 30th and 31st bits. Due to this state readout was masking these bits, causing a mismatch and false warning, even though the registers were updated correctly. Dropped the gamma mode mask as it is redundant and ideally entire register content should be matching. This resolves the state mismatch warnings. Signed-off-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1550689519-6977-1-git-send-email-uma.shankar@intel.com Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109624
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h1
-rw-r--r--drivers/gpu/drm/i915/intel_display.c3
2 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a44a9f8ab76d..730bb1917fd1 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7151,7 +7151,6 @@ enum {
#define GAMMA_MODE(pipe) _MMIO_PIPE(pipe, _GAMMA_MODE_A, _GAMMA_MODE_B)
#define PRE_CSC_GAMMA_ENABLE (1 << 31)
#define POST_CSC_GAMMA_ENABLE (1 << 30)
-#define GAMMA_MODE_MODE_MASK (3 << 0)
#define GAMMA_MODE_MODE_8BIT (0 << 0)
#define GAMMA_MODE_MODE_10BIT (1 << 0)
#define GAMMA_MODE_MODE_12BIT (2 << 0)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0ca09d1341f3..b1d63c32ca94 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9897,8 +9897,7 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
intel_get_pipe_src_size(crtc, pipe_config);
intel_get_crtc_ycbcr_config(crtc, pipe_config);
- pipe_config->gamma_mode =
- I915_READ(GAMMA_MODE(crtc->pipe)) & GAMMA_MODE_MODE_MASK;
+ pipe_config->gamma_mode = I915_READ(GAMMA_MODE(crtc->pipe));
if (INTEL_GEN(dev_priv) >= 9) {
u32 tmp = I915_READ(SKL_BOTTOM_COLOR(crtc->pipe));