diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_color.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c index ce2c3819146c..aa702292779f 100644 --- a/drivers/gpu/drm/i915/display/intel_color.c +++ b/drivers/gpu/drm/i915/display/intel_color.c @@ -617,6 +617,22 @@ static void icl_color_commit_noarm(const struct intel_crtc_state *crtc_state) icl_load_csc_matrix(crtc_state); } +static void skl_color_commit_noarm(const struct intel_crtc_state *crtc_state) +{ + /* + * Possibly related to display WA #1184, SKL CSC loses the latched + * CSC coeff/offset register values if the CSC registers are disarmed + * between DC5 exit and PSR exit. This will cause the plane(s) to + * output all black (until CSC_MODE is rearmed and properly latched). + * Once PSR exit (and proper register latching) has occurred the + * danger is over. Thus when PSR is enabled the CSC coeff/offset + * register programming will be peformed from skl_color_commit_arm() + * which is called after PSR exit. + */ + if (!crtc_state->has_psr) + ilk_load_csc_matrix(crtc_state); +} + static void ilk_color_commit_noarm(const struct intel_crtc_state *crtc_state) { ilk_load_csc_matrix(crtc_state); @@ -659,6 +675,9 @@ static void skl_color_commit_arm(const struct intel_crtc_state *crtc_state) enum pipe pipe = crtc->pipe; u32 val = 0; + if (crtc_state->has_psr) + ilk_load_csc_matrix(crtc_state); + /* * We don't (yet) allow userspace to control the pipe background color, * so force it to black, but apply pipe gamma and CSC appropriately @@ -3094,7 +3113,7 @@ static const struct intel_color_funcs icl_color_funcs = { static const struct intel_color_funcs glk_color_funcs = { .color_check = glk_color_check, - .color_commit_noarm = ilk_color_commit_noarm, + .color_commit_noarm = skl_color_commit_noarm, .color_commit_arm = skl_color_commit_arm, .load_luts = glk_load_luts, .read_luts = glk_read_luts, @@ -3103,7 +3122,7 @@ static const struct intel_color_funcs glk_color_funcs = { static const struct intel_color_funcs skl_color_funcs = { .color_check = ivb_color_check, - .color_commit_noarm = ilk_color_commit_noarm, + .color_commit_noarm = skl_color_commit_noarm, .color_commit_arm = skl_color_commit_arm, .load_luts = bdw_load_luts, .read_luts = bdw_read_luts, |