drm/i915/display: Enhance iterators for modeset en/disable

Joiners have specific enabling and disabling order dependent on primary
and secondary pipes. This becomes more complex with ultrajoiner where we
have ultrajoiner primary/secondary pipes in addition to bigjoiner
primary/secondary pipes. To unify the approach that works for present
and future joiner cases, use primary and secondary pipe masks to
iterate over pipes.

If joiner is used, derive bigoiner primary and secondary pipe masks
and use following sequences:
Disabling : disable primary pipes followed by secondary pipes,
Enabling: enable secondary pipes followed by primary pipes.

This works well with ultrajoiner too, as ultrajoiner has 2 bigjoiner
primary/secondary pairs (AC, BD).

For non joiner case, enable/disable based on usual pipe order A-D, D-A
respectively.

v2:
-Simplify the iterator macro. (Ville)
-Use struct intel_display. (Ville)
-Add prefix _intel to the helper name. (Ville)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240918063016.2667721-3-ankit.k.nautiyal@intel.com

1 files changed, 7 insertions, 7 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index dc050da29815..7debefd4a0d6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -990,6 +990,7 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
 				      const struct intel_crtc_state *old_crtc_state,
 				      const struct drm_connector_state *old_conn_state)
 {
+	struct intel_display *display = to_intel_display(encoder);
 	struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
 	struct intel_digital_port *dig_port = intel_mst->primary;
 	struct intel_dp *intel_dp = &dig_port->dp;
@@ -1006,6 +1007,7 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct intel_crtc *pipe_crtc;
 	bool last_mst_stream;
+	int i;
 
 	intel_dp->active_mst_links--;
 	last_mst_stream = intel_dp->active_mst_links == 0;
@@ -1013,8 +1015,7 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
 		    DISPLAY_VER(dev_priv) >= 12 && last_mst_stream &&
 		    !intel_dp_mst_is_master_trans(old_crtc_state));
 
-	for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, pipe_crtc,
-					 intel_crtc_joined_pipe_mask(old_crtc_state)) {
+	for_each_pipe_crtc_modeset_disable(display, pipe_crtc, old_crtc_state, i) {
 		const struct intel_crtc_state *old_pipe_crtc_state =
 			intel_atomic_get_old_crtc_state(state, pipe_crtc);
 
@@ -1038,8 +1039,7 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
 
 	intel_ddi_disable_transcoder_func(old_crtc_state);
 
-	for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, pipe_crtc,
-					 intel_crtc_joined_pipe_mask(old_crtc_state)) {
+	for_each_pipe_crtc_modeset_disable(display, pipe_crtc, old_crtc_state, i) {
 		const struct intel_crtc_state *old_pipe_crtc_state =
 			intel_atomic_get_old_crtc_state(state, pipe_crtc);
 
@@ -1248,6 +1248,7 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
 				const struct intel_crtc_state *pipe_config,
 				const struct drm_connector_state *conn_state)
 {
+	struct intel_display *display = to_intel_display(encoder);
 	struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
 	struct intel_digital_port *dig_port = intel_mst->primary;
 	struct intel_dp *intel_dp = &dig_port->dp;
@@ -1258,7 +1259,7 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
 	enum transcoder trans = pipe_config->cpu_transcoder;
 	bool first_mst_stream = intel_dp->active_mst_links == 1;
 	struct intel_crtc *pipe_crtc;
-	int ret;
+	int ret, i;
 
 	drm_WARN_ON(&dev_priv->drm, pipe_config->has_pch_encoder);
 
@@ -1305,8 +1306,7 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
 
 	intel_enable_transcoder(pipe_config);
 
-	for_each_intel_crtc_in_pipe_mask_reverse(&dev_priv->drm, pipe_crtc,
-						 intel_crtc_joined_pipe_mask(pipe_config)) {
+	for_each_pipe_crtc_modeset_enable(display, pipe_crtc, pipe_config, i) {
 		const struct intel_crtc_state *pipe_crtc_state =
 			intel_atomic_get_new_crtc_state(state, pipe_crtc);