Re: [PATCH v6 03/10] drm/msm/dp: use atomic callbacks for DP bridge ops

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On 11/07/2022 15:56, Vinod Polimera wrote:
Use atomic variants for DP bridge callback functions so that
the atomic state can be accessed in the interface drivers.
The atomic state will help the driver find out if the display
is in self refresh state.

Signed-off-by: Sankeerth Billakanti <quic_sbillaka@xxxxxxxxxxx>
Signed-off-by: Vinod Polimera <quic_vpolimer@xxxxxxxxxxx>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

---
  drivers/gpu/drm/msm/dp/dp_display.c |  9 ++++++---
  drivers/gpu/drm/msm/dp/dp_drm.c     | 17 ++++++++++-------
  drivers/gpu/drm/msm/dp/dp_drm.h     |  9 ++++++---
  3 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index bce7793..5bd6677 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1652,7 +1652,8 @@ int msm_dp_modeset_init(struct msm_dp *dp_display, struct drm_device *dev,
  	return 0;
  }
-void dp_bridge_enable(struct drm_bridge *drm_bridge)
+void dp_bridge_atomic_enable(struct drm_bridge *drm_bridge,
+			     struct drm_bridge_state *old_bridge_state)
  {
  	struct msm_dp_bridge *dp_bridge = to_dp_bridge(drm_bridge);
  	struct msm_dp *dp = dp_bridge->dp_display;
@@ -1716,7 +1717,8 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge)
  	mutex_unlock(&dp_display->event_mutex);
  }
-void dp_bridge_disable(struct drm_bridge *drm_bridge)
+void dp_bridge_atomic_disable(struct drm_bridge *drm_bridge,
+			      struct drm_bridge_state *old_bridge_state)
  {
  	struct msm_dp_bridge *dp_bridge = to_dp_bridge(drm_bridge);
  	struct msm_dp *dp = dp_bridge->dp_display;
@@ -1727,7 +1729,8 @@ void dp_bridge_disable(struct drm_bridge *drm_bridge)
  	dp_ctrl_push_idle(dp_display->ctrl);
  }
-void dp_bridge_post_disable(struct drm_bridge *drm_bridge)
+void dp_bridge_atomic_post_disable(struct drm_bridge *drm_bridge,
+				   struct drm_bridge_state *old_bridge_state)
  {
  	struct msm_dp_bridge *dp_bridge = to_dp_bridge(drm_bridge);
  	struct msm_dp *dp = dp_bridge->dp_display;
diff --git a/drivers/gpu/drm/msm/dp/dp_drm.c b/drivers/gpu/drm/msm/dp/dp_drm.c
index 62d58b9..294c28a 100644
--- a/drivers/gpu/drm/msm/dp/dp_drm.c
+++ b/drivers/gpu/drm/msm/dp/dp_drm.c
@@ -61,13 +61,16 @@ static int dp_bridge_get_modes(struct drm_bridge *bridge, struct drm_connector *
  }
static const struct drm_bridge_funcs dp_bridge_ops = {
-	.enable       = dp_bridge_enable,
-	.disable      = dp_bridge_disable,
-	.post_disable = dp_bridge_post_disable,
-	.mode_set     = dp_bridge_mode_set,
-	.mode_valid   = dp_bridge_mode_valid,
-	.get_modes    = dp_bridge_get_modes,
-	.detect       = dp_bridge_detect,
+	.atomic_enable = dp_bridge_atomic_enable,
+	.atomic_disable = dp_bridge_atomic_disable,
+	.atomic_post_disable = dp_bridge_atomic_post_disable,
+	.mode_set = dp_bridge_mode_set,
+	.mode_valid = dp_bridge_mode_valid,
+	.get_modes = dp_bridge_get_modes,
+	.detect = dp_bridge_detect,
+	.atomic_reset = drm_atomic_helper_bridge_reset,
+	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
  };
struct drm_bridge *dp_bridge_init(struct msm_dp *dp_display, struct drm_device *dev,
diff --git a/drivers/gpu/drm/msm/dp/dp_drm.h b/drivers/gpu/drm/msm/dp/dp_drm.h
index f4b1ed1..6b8ef29 100644
--- a/drivers/gpu/drm/msm/dp/dp_drm.h
+++ b/drivers/gpu/drm/msm/dp/dp_drm.h
@@ -23,9 +23,12 @@ struct drm_connector *dp_drm_connector_init(struct msm_dp *dp_display);
  struct drm_bridge *dp_bridge_init(struct msm_dp *dp_display, struct drm_device *dev,
  			struct drm_encoder *encoder);
-void dp_bridge_enable(struct drm_bridge *drm_bridge);
-void dp_bridge_disable(struct drm_bridge *drm_bridge);
-void dp_bridge_post_disable(struct drm_bridge *drm_bridge);
+void dp_bridge_atomic_enable(struct drm_bridge *drm_bridge,
+			     struct drm_bridge_state *old_bridge_state);
+void dp_bridge_atomic_disable(struct drm_bridge *drm_bridge,
+			      struct drm_bridge_state *old_bridge_state);
+void dp_bridge_atomic_post_disable(struct drm_bridge *drm_bridge,
+				   struct drm_bridge_state *old_bridge_state);
  enum drm_mode_status dp_bridge_mode_valid(struct drm_bridge *bridge,
  					  const struct drm_display_info *info,
  					  const struct drm_display_mode *mode);


--
With best wishes
Dmitry



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