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Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch52
1 files changed, 52 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch b/target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch
new file mode 100644
index 0000000000..46d373b22a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch
@@ -0,0 +1,52 @@
+From a9c640d91233d2e1b38e32644a5f53bc2de1fce0 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 29 Apr 2021 21:58:27 +0200
+Subject: [PATCH] drm/vc4: hdmi: Simplify the connector state retrieval
+
+When we have the entire DRM state, retrieving the connector state only
+requires the drm_connector pointer. Fortunately for us, we have
+allocated it as a part of the vc4_hdmi structure, so we can retrieve get
+a pointer by simply accessing our field in that structure.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 21 +++------------------
+ 1 file changed, 3 insertions(+), 18 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -851,31 +851,16 @@ static void vc4_hdmi_recenter_fifo(struc
+ "VC4_HDMI_FIFO_CTL_RECENTER_DONE");
+ }
+
+-static struct drm_connector_state *
+-vc4_hdmi_encoder_get_connector_state(struct drm_encoder *encoder,
+- struct drm_atomic_state *state)
+-{
+- struct drm_connector_state *conn_state;
+- struct drm_connector *connector;
+- unsigned int i;
+-
+- for_each_new_connector_in_state(state, connector, conn_state, i) {
+- if (conn_state->best_encoder == encoder)
+- return conn_state;
+- }
+-
+- return NULL;
+-}
+-
+ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
+ struct drm_atomic_state *state)
+ {
++ struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
++ struct drm_connector *connector = &vc4_hdmi->connector;
+ struct drm_connector_state *conn_state =
+- vc4_hdmi_encoder_get_connector_state(encoder, state);
++ drm_atomic_get_new_connector_state(state, connector);
+ struct vc4_hdmi_connector_state *vc4_conn_state =
+ conn_state_to_vc4_hdmi_conn_state(conn_state);
+ struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+- struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ unsigned long bvb_rate, pixel_rate, hsm_rate;
+ int ret;
+