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| author | Andrzej Pietrasiewicz <andrzej.p@collabora.com> | 2019-07-26 19:22:56 +0200 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2019-07-31 16:27:13 +0200 |
| commit | 100163df420305b78153e6f5ec10c90d755acee3 (patch) | |
| tree | fae5a576db765add6d9804a8b91a2060047c1aef /drivers/gpu/drm/drm_connector.c | |
| parent | e1a29c6c59553d80a8e17d63494c65a13fb8e241 (diff) | |
| download | lwn-100163df420305b78153e6f5ec10c90d755acee3.tar.gz lwn-100163df420305b78153e6f5ec10c90d755acee3.zip | |
drm: Add drm_connector_init() variant with ddc
Allow passing ddc adapter pointer to the init function. Even if
drm_connector_init() sometime in the future decides to e.g. memset() all
connector fields to zeros, the newly added function ensures that at its
completion the ddc member of connector is correctly set.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3915224ae895240fd0973cf7f06b9d453e4d8520.1564161140.git.andrzej.p@collabora.com
Diffstat (limited to 'drivers/gpu/drm/drm_connector.c')
| -rw-r--r-- | drivers/gpu/drm/drm_connector.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index cbb548b3708f..d49e19f3de3a 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -298,6 +298,41 @@ out_put: EXPORT_SYMBOL(drm_connector_init); /** + * drm_connector_init_with_ddc - Init a preallocated connector + * @dev: DRM device + * @connector: the connector to init + * @funcs: callbacks for this connector + * @connector_type: user visible type of the connector + * @ddc: pointer to the associated ddc adapter + * + * Initialises a preallocated connector. Connectors should be + * subclassed as part of driver connector objects. + * + * Ensures that the ddc field of the connector is correctly set. + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_connector_init_with_ddc(struct drm_device *dev, + struct drm_connector *connector, + const struct drm_connector_funcs *funcs, + int connector_type, + struct i2c_adapter *ddc) +{ + int ret; + + ret = drm_connector_init(dev, connector, funcs, connector_type); + if (ret) + return ret; + + /* provide ddc symlink in sysfs */ + connector->ddc = ddc; + + return ret; +} +EXPORT_SYMBOL(drm_connector_init_with_ddc); + +/** * drm_connector_attach_edid_property - attach edid property. * @connector: the connector * |