Merge tag 'drm-intel-next-fixes-2024-09-19' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next

- Fix BMG support to UHBR13.5
- Two PSR fixes

Signed-off-by: Dave Airlie <[email protected]>
From: Joonas Lahtinen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: airlied

drivers/gpu/drm/i915/display/intel_ddi.c

@@ -916,7 +916,7 @@ intel_ddi_main_link_aux_domain(struct intel_digital_port *dig_port,
 	 * instead of a specific AUX_IO_<port> reference without powering up any
 	 * extra wells.
 	 */
-	if (intel_encoder_can_psr(&dig_port->base))
+	if (intel_psr_needs_aux_io_power(&dig_port->base, crtc_state))
 		return intel_display_power_aux_io_domain(i915, dig_port->aux_ch);
 	else if (DISPLAY_VER(i915) < 14 &&
 		 (intel_crtc_has_dp_encoder(crtc_state) ||

drivers/gpu/drm/i915/display/intel_dp.c

@@ -531,6 +531,10 @@ static void
 intel_dp_set_source_rates(struct intel_dp *intel_dp)
 {
 	/* The values must be in increasing order */
+	static const int bmg_rates[] = {
+		162000, 216000, 243000, 270000, 324000, 432000, 540000, 675000,
+		810000,	1000000, 1350000,
+	};
 	static const int mtl_rates[] = {
 		162000, 216000, 243000, 270000, 324000, 432000, 540000, 675000,
 		810000,	1000000, 2000000,
@@ -561,8 +565,13 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
 		    intel_dp->source_rates || intel_dp->num_source_rates);
 
 	if (DISPLAY_VER(dev_priv) >= 14) {
-		source_rates = mtl_rates;
-		size = ARRAY_SIZE(mtl_rates);
+		if (IS_BATTLEMAGE(dev_priv)) {
+			source_rates = bmg_rates;
+			size = ARRAY_SIZE(bmg_rates);
+		} else {
+			source_rates = mtl_rates;
+			size = ARRAY_SIZE(mtl_rates);
+		}
 		max_rate = mtl_max_source_rate(intel_dp);
 	} else if (DISPLAY_VER(dev_priv) >= 11) {
 		source_rates = icl_rates;

drivers/gpu/drm/i915/display/intel_psr.c

@@ -203,6 +203,25 @@ bool intel_encoder_can_psr(struct intel_encoder *encoder)
 		return false;
 }
 
+bool intel_psr_needs_aux_io_power(struct intel_encoder *encoder,
+				  const struct intel_crtc_state *crtc_state)
+{
+	/*
+	 * For PSR/PR modes only eDP requires the AUX IO power to be enabled whenever
+	 * the output is enabled. For non-eDP outputs the main link is always
+	 * on, hence it doesn't require the HW initiated AUX wake-up signaling used
+	 * for eDP.
+	 *
+	 * TODO:
+	 * - Consider leaving AUX IO disabled for eDP / PR as well, in case
+	 *   the ALPM with main-link off mode is not enabled.
+	 * - Leave AUX IO enabled for DP / PR, once support for ALPM with
+	 *   main-link off mode is added for it and this mode gets enabled.
+	 */
+	return intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP) &&
+	       intel_encoder_can_psr(encoder);
+}
+
 static bool psr_global_enabled(struct intel_dp *intel_dp)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
@@ -2784,13 +2803,6 @@ static int _psr1_ready_for_pipe_update_locked(struct intel_dp *intel_dp)
 				       EDP_PSR_STATUS_STATE_MASK, 50);
 }
 
-static int _panel_replay_ready_for_pipe_update_locked(struct intel_dp *intel_dp)
-{
-	return intel_dp_is_edp(intel_dp) ?
-		_psr2_ready_for_pipe_update_locked(intel_dp) :
-		_psr1_ready_for_pipe_update_locked(intel_dp);
-}
-
 /**
  * intel_psr_wait_for_idle_locked - wait for PSR be ready for a pipe update
  * @new_crtc_state: new CRTC state
@@ -2813,12 +2825,10 @@ void intel_psr_wait_for_idle_locked(const struct intel_crtc_state *new_crtc_stat
 
 		lockdep_assert_held(&intel_dp->psr.lock);
 
-		if (!intel_dp->psr.enabled)
+		if (!intel_dp->psr.enabled || intel_dp->psr.panel_replay_enabled)
 			continue;
 
-		if (intel_dp->psr.panel_replay_enabled)
-			ret = _panel_replay_ready_for_pipe_update_locked(intel_dp);
-		else if (intel_dp->psr.sel_update_enabled)
+		if (intel_dp->psr.sel_update_enabled)
 			ret = _psr2_ready_for_pipe_update_locked(intel_dp);
 		else
 			ret = _psr1_ready_for_pipe_update_locked(intel_dp);

drivers/gpu/drm/i915/display/intel_psr.h

@@ -25,6 +25,8 @@ struct intel_plane_state;
 				    (intel_dp)->psr.source_panel_replay_support)
 
 bool intel_encoder_can_psr(struct intel_encoder *encoder);
+bool intel_psr_needs_aux_io_power(struct intel_encoder *encoder,
+				  const struct intel_crtc_state *crtc_state);
 void intel_psr_init_dpcd(struct intel_dp *intel_dp);
 void intel_psr_enable_sink(struct intel_dp *intel_dp,
 			   const struct intel_crtc_state *crtc_state);