Re: [Intel-gfx] [PATCH v2 22/41] drm/atomic-helper: Add a TV properties reset helper

[Noralf Trønnes]

Den 29.08.2022 15.11, skrev Maxime Ripard:
> The drm_tv_create_properties() function will create a bunch of properties,
> 
> but it's up to each and every driver using that function to properly reset
> 
> the state of these properties leading to inconsistent behaviours.
> 
> 
> 
> Let's create a helper that will take care of it.
> 
> 
> 
> Signed-off-by: Maxime Ripard 
> 

Reviewed-by: Noralf Trønnes 

[Intel-gfx] [PATCH v2 22/41] drm/atomic-helper: Add a TV properties reset helper

[Maxime Ripard]

The drm_tv_create_properties() function will create a bunch of properties,
but it's up to each and every driver using that function to properly reset
the state of these properties leading to inconsistent behaviours.

Let's create a helper that will take care of it.

Signed-off-by: Maxime Ripard 

diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c 
b/drivers/gpu/drm/drm_atomic_state_helper.c
index dfb57217253b..0373c3dc824b 100644
--- a/drivers/gpu/drm/drm_atomic_state_helper.c
+++ b/drivers/gpu/drm/drm_atomic_state_helper.c
@@ -481,6 +481,81 @@ void drm_atomic_helper_connector_tv_margins_reset(struct 
drm_connector *connecto
 }
 EXPORT_SYMBOL(drm_atomic_helper_connector_tv_margins_reset);
 
+/**
+ * drm_atomic_helper_connector_tv_reset - Resets Analog TV connector properties
+ * @connector: DRM connector
+ *
+ * Resets the analog TV properties attached to a connector
+ */
+void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector)
+{
+   struct drm_device *dev = connector->dev;
+   struct drm_cmdline_mode *cmdline = >cmdline_mode;
+   struct drm_connector_state *state = connector->state;
+   struct drm_property *prop;
+   uint64_t val;
+
+   prop = dev->mode_config.tv_mode_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.mode = val;
+
+   if (cmdline->tv_mode)
+   state->tv.mode = cmdline->tv_mode;
+
+   prop = dev->mode_config.tv_select_subconnector_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.select_subconnector = val;
+
+   prop = dev->mode_config.tv_subconnector_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.subconnector = val;
+
+   prop = dev->mode_config.tv_brightness_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.brightness = val;
+
+   prop = dev->mode_config.tv_contrast_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.contrast = val;
+
+   prop = dev->mode_config.tv_flicker_reduction_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.flicker_reduction = val;
+
+   prop = dev->mode_config.tv_overscan_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.overscan = val;
+
+   prop = dev->mode_config.tv_saturation_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.saturation = val;
+
+   prop = dev->mode_config.tv_hue_property;
+   if (prop)
+   if (!drm_object_property_get_default_value(>base,
+  prop, ))
+   state->tv.hue = val;
+
+   drm_atomic_helper_connector_tv_margins_reset(connector);
+}
+EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset);
+
 /**
  * __drm_atomic_helper_connector_duplicate_state - copy atomic connector state
  * @connector: connector object
diff --git a/include/drm/drm_atomic_state_helper.h 
b/include/drm/drm_atomic_state_helper.h
index 192766656b88..c8fbce795ee7 100644
--- a/include/drm/drm_atomic_state_helper.h
+++ b/include/drm/drm_atomic_state_helper.h
@@ -70,6 +70,7 @@ void __drm_atomic_helper_connector_state_reset(struct 
drm_connector_state *conn_
 void __drm_atomic_helper_connector_reset(struct drm_connector *connector,
 struct drm_connector_state 
*conn_state);
 void drm_atomic_helper_connector_reset(struct drm_connector *connector);
+void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector);
 void drm_atomic_helper_connector_tv_margins_reset(struct drm_connector 
*connector);
 void
 __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,

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b4 0.10.0-dev-65ba7