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drm/i915: Introduce intel_crtc_enable_changed() and intel_any_crtc_enable_changed()

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Introduce helpers that determine whether any crtc is changing
its enabled state. Will be useful for cdclk stuff.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250923171943.7319-2-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
This commit is contained in:
Ville Syrjälä 2025-09-23 20:19:23 +03:00
parent 324ccdb5ce
commit b8459c3b6e
2 changed files with 25 additions and 0 deletions
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21
drivers/gpu/drm/i915/display/intel_crtc.c
View File

@ -753,3 +753,24 @@ void intel_pipe_update_end(struct intel_atomic_state *state,
out:
intel_psr_unlock(new_crtc_state);
}
bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state,
const struct intel_crtc_state *new_crtc_state)
{
return old_crtc_state->hw.enable != new_crtc_state->hw.enable;
}
bool intel_any_crtc_enable_changed(struct intel_atomic_state *state)
{
const struct intel_crtc_state *old_crtc_state, *new_crtc_state;
struct intel_crtc *crtc;
int i;
for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
if (intel_crtc_enable_changed(old_crtc_state, new_crtc_state))
return true;
}
return false;
}

4
drivers/gpu/drm/i915/display/intel_crtc.h
View File

@ -58,4 +58,8 @@ void intel_wait_for_vblank_if_active(struct intel_display *display,
enum pipe pipe);
void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc);
bool intel_any_crtc_enable_changed(struct intel_atomic_state *state);
bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state,
const struct intel_crtc_state *new_crtc_state);
#endif