diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2024-12-24 04:47:58 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2025-01-04 09:47:11 +0300 |
| commit | ab716b74dc9dd4903b9006f473137e1aa624af56 (patch) | |
| tree | 2e184a95781b14d36d9c5a99a1842240d56b7398 /include/drm | |
| parent | c054aa1bf529a2fa13546b25231d16bb0fd87ca2 (diff) | |
| download | linux-ab716b74dc9dd4903b9006f473137e1aa624af56.tar.xz | |
drm/display/hdmi: implement hotplug functions
The HDMI Connectors need to perform a variety of tasks when the HDMI
connector state changes. Such tasks include setting or invalidating CEC
address, notifying HDMI codec driver, updating scrambler data, etc.
Implementing such tasks in a driver-specific callbacks is error prone.
Start implementing the generic helper function (currently handling only
the HDMI Codec framework) to be used by drivers utilizing HDMI Connector
framework.
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-drm-bridge-hdmi-connector-v10-6-dc89577cd438@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/display/drm_hdmi_state_helper.h | 5 | ||||
| -rw-r--r-- | include/drm/drm_connector.h | 16 |
2 files changed, 21 insertions, 0 deletions
diff --git a/include/drm/display/drm_hdmi_state_helper.h b/include/drm/display/drm_hdmi_state_helper.h index d6d65da6d8f9..9ae19f3caf72 100644 --- a/include/drm/display/drm_hdmi_state_helper.h +++ b/include/drm/display/drm_hdmi_state_helper.h @@ -8,6 +8,8 @@ struct drm_connector; struct drm_connector_state; struct hdmi_audio_infoframe; +enum drm_connector_status; + void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, struct drm_connector_state *new_conn_state); @@ -19,6 +21,9 @@ int drm_atomic_helper_connector_hdmi_update_audio_infoframe(struct drm_connector int drm_atomic_helper_connector_hdmi_clear_audio_infoframe(struct drm_connector *connector); int drm_atomic_helper_connector_hdmi_update_infoframes(struct drm_connector *connector, struct drm_atomic_state *state); +void drm_atomic_helper_connector_hdmi_hotplug(struct drm_connector *connector, + enum drm_connector_status status); +void drm_atomic_helper_connector_hdmi_force(struct drm_connector *connector); enum drm_mode_status drm_hdmi_connector_mode_valid(struct drm_connector *connector, diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 1d4c27948e87..f13d597370a3 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -45,6 +45,7 @@ struct drm_property; struct drm_property_blob; struct drm_printer; struct drm_privacy_screen; +struct drm_edid; struct edid; struct hdmi_codec_daifmt; struct hdmi_codec_params; @@ -1247,6 +1248,21 @@ struct drm_connector_hdmi_funcs { int (*write_infoframe)(struct drm_connector *connector, enum hdmi_infoframe_type type, const u8 *buffer, size_t len); + + /** + * @read_edid: + * + * This callback is used by the framework as a replacement for reading + * the EDID from connector->ddc. It is still recommended to provide + * connector->ddc instead of implementing this callback. Returned EDID + * should be freed via the drm_edid_free(). + * + * The @read_edid callback is optional. + * + * Returns: + * Valid EDID on success, NULL in case of failure. + */ + const struct drm_edid *(*read_edid)(struct drm_connector *connector); }; /** |