From: Uma Shankar Date: Wed, 20 Feb 2019 19:05:19 +0000 (+0530) Subject: drm/i915/icl: Drop redundant gamma mode mask X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2a3902bd5c14a4946739c9da14071f5aa6e85549;p=linux.git 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 Signed-off-by: Ville Syrjälä 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 --- diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index a44a9f8ab76d0..730bb1917fd12 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 0ca09d1341f38..b1d63c32ca94e 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));