[PATCH v5 03/22] drm/connector: Only register TV mode property if present

Maxime Ripard
2022-10-13T13:23:26Z

The drm_create_tv_properties() will create the TV mode property
unconditionally.

However, since we'll gradually phase it out, let's register it only if we
have a list passed as an argument. This will make the transition easier.

Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
drivers/gpu/drm/drm_connector.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index ede6025638d7..17a5913cefe3 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1686,15 +1686,18 @@ int drm_mode_create_tv_properties(struct drm_device *dev,
if (drm_mode_create_tv_margin_properties(dev))
goto nomem;

- dev->mode_config.legacy_tv_mode_property =
- drm_property_create(dev, DRM_MODE_PROP_ENUM,
- "mode", num_modes);
- if (!dev->mode_config.legacy_tv_mode_property)
- goto nomem;

- for (i = 0; i < num_modes; i++)
- drm_property_add_enum(dev->mode_config.legacy_tv_mode_property,
- i, modes[i]);
+ if (num_modes) {
+ dev->mode_config.legacy_tv_mode_property =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "mode", num_modes);
+ if (!dev->mode_config.legacy_tv_mode_property)
+ goto nomem;
+
+ for (i = 0; i < num_modes; i++)
+ drm_property_add_enum(dev->mode_config.legacy_tv_mode_property,
+ i, modes[i]);
+ }

dev->mode_config.tv_brightness_property =
drm_property_create_range(dev, 0, "brightness", 0, 100);

--
b4 0.11.0-dev-7da52