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drm/i915: Update pipe gamma enable bits when C8 planes are getting enabled/disabled

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When the first C8 plane gets enabled, or the last one gets disabled we
may need to enable/disable the pipe gamma for the other active planes.
Check for that and run through the normal intel_color_check() path.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190513133904.20374-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2019-05-13 16:39:03 +03:00
parent c017cf6b1a
commit 638d87c4a7
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/i915/intel_display.c
View file

@ -11507,6 +11507,17 @@ static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state)
return 0;
}
static bool c8_planes_changed(const struct intel_crtc_state *new_crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->base.crtc);
struct intel_atomic_state *state =
to_intel_atomic_state(new_crtc_state->base.state);
const struct intel_crtc_state *old_crtc_state =
intel_atomic_get_old_crtc_state(state, crtc);
return !old_crtc_state->c8_planes != !new_crtc_state->c8_planes;
}
static int intel_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_crtc_state *crtc_state)
{
@ -11530,6 +11541,13 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
return ret;
}
/*
* May need to update pipe gamma enable bits
* when C8 planes are getting enabled/disabled.
*/
if (c8_planes_changed(pipe_config))
crtc_state->color_mgmt_changed = true;
if (mode_changed || pipe_config->update_pipe ||
crtc_state->color_mgmt_changed) {
ret = intel_color_check(pipe_config);