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drm/i915/vrr: Add helper for PSR to enable Frame Change event on trans push

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Add new helper to enable PSR Frame Change event generation using trans push
mechanism. This helper is to be used by PSR code on PSR enable.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260127124120.1069026-5-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2026-01-27 14:41:13 +02:00
parent 37d4001a72
commit ef7ae0e3f6
2 changed files with 10 additions and 0 deletions
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9
drivers/gpu/drm/i915/display/intel_vrr.c
View File

@ -973,6 +973,15 @@ void intel_vrr_transcoder_disable(const struct intel_crtc_state *old_crtc_state)
intel_vrr_tg_disable(old_crtc_state);
}
void intel_vrr_psr_frame_change_enable(const struct intel_crtc_state *crtc_state)
{
struct intel_display *display = to_intel_display(crtc_state);
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
intel_de_write(display, TRANS_PUSH(display, cpu_transcoder),
trans_vrr_push(crtc_state, false));
}
bool intel_vrr_is_fixed_rr(const struct intel_crtc_state *crtc_state)
{
return crtc_state->vrr.flipline &&

1
drivers/gpu/drm/i915/display/intel_vrr.h
View File

@ -33,6 +33,7 @@ void intel_vrr_dcb_increment_flip_count(struct intel_crtc_state *crtc_state,
struct intel_crtc *crtc);
bool intel_vrr_is_push_sent(const struct intel_crtc_state *crtc_state);
void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state);
void intel_vrr_psr_frame_change_enable(const struct intel_crtc_state *crtc_state);
void intel_vrr_get_config(struct intel_crtc_state *crtc_state);
int intel_vrr_vmax_vtotal(const struct intel_crtc_state *crtc_state);
int intel_vrr_vmin_vtotal(const struct intel_crtc_state *crtc_state);