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drm/atomic-helper: Add a TV properties reset helper

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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.

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Acked-in-principle-or-something-like-that-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v10-13-256dad125326@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Maxime Ripard 2022-11-17 10:28:56 +01:00
parent 1e4a91db10
commit 00e77a697d
No known key found for this signature in database
GPG key ID: E3EF0D6F671851C5
2 changed files with 76 additions and 0 deletions
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75
drivers/gpu/drm/drm_atomic_state_helper.c
View file

@ -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 = &connector->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(&connector->base,
prop, &val))
state->tv.mode = val;
if (cmdline->tv_mode_specified)
state->tv.mode = cmdline->tv_mode;
prop = dev->mode_config.tv_select_subconnector_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
state->tv.select_subconnector = val;
prop = dev->mode_config.tv_subconnector_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
state->tv.subconnector = val;
prop = dev->mode_config.tv_brightness_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
state->tv.brightness = val;
prop = dev->mode_config.tv_contrast_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
state->tv.contrast = val;
prop = dev->mode_config.tv_flicker_reduction_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
state->tv.flicker_reduction = val;
prop = dev->mode_config.tv_overscan_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
state->tv.overscan = val;
prop = dev->mode_config.tv_saturation_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
state->tv.saturation = val;
prop = dev->mode_config.tv_hue_property;
if (prop)
if (!drm_object_property_get_default_value(&connector->base,
prop, &val))
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

1
include/drm/drm_atomic_state_helper.h
View file

@ -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,