For every commit the dependent condition for LOBF is checked and accordingly update has_lobf flag which will be used to update the ALPM_CTL register during commit. v1: Initial version. v2: Avoid reading h/w register without has_lobf check. [Jani] v3: Update LOBF in post plane update instead of separate function. [Jouni] Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_alpm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_alpm.c b/drivers/gpu/drm/i915/display/intel_alpm.c index c2862888466f..5df1253a6b6c 100644 --- a/drivers/gpu/drm/i915/display/intel_alpm.c +++ b/drivers/gpu/drm/i915/display/intel_alpm.c @@ -378,9 +378,12 @@ void intel_alpm_post_plane_update(struct intel_atomic_state *state, struct intel_display *display = to_intel_display(state); const struct intel_crtc_state *crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); struct intel_encoder *encoder; - if (!crtc_state->has_lobf && !crtc_state->has_psr) + if (!crtc_state->has_lobf && !crtc_state->has_psr && + !old_crtc_state->has_lobf) return; for_each_intel_encoder_mask(display->drm, encoder, -- 2.29.0
