Introduce drm_atomic_helper_connector_hdmi_hotplug_ctx(), a variant of drm_atomic_helper_connector_hdmi_hotplug() that accepts a drm_modeset_acquire_ctx.
This enables SCDC status synchronization on hotplug events, which requires lock acquisition context for performing the CRTC reset triggered by drm_scdc_sync_status(). Signed-off-by: Cristian Ciocaltea <[email protected]> --- drivers/gpu/drm/display/drm_hdmi_state_helper.c | 40 ++++++++++++++++++++----- include/drm/display/drm_hdmi_state_helper.h | 4 +++ 2 files changed, 37 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c index a331ebdd65af..a96d81cbf94f 100644 --- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c +++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c @@ -12,6 +12,7 @@ #include <drm/display/drm_hdmi_cec_helper.h> #include <drm/display/drm_hdmi_helper.h> #include <drm/display/drm_hdmi_state_helper.h> +#include <drm/display/drm_scdc_helper.h> /** * DOC: hdmi helpers @@ -1150,18 +1151,20 @@ drm_atomic_helper_connector_hdmi_clear_audio_infoframe(struct drm_connector *con } EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_clear_audio_infoframe); -static void +static int drm_atomic_helper_connector_hdmi_update(struct drm_connector *connector, - enum drm_connector_status status) + enum drm_connector_status status, + struct drm_modeset_acquire_ctx *ctx) { const struct drm_edid *drm_edid; + int ret = 0; if (status == connector_status_disconnected) { - // TODO: also handle scramber, HDMI sink disconnected. + ret = drm_scdc_sync_status(connector, false, ctx); drm_connector_hdmi_audio_plugged_notify(connector, false); drm_edid_connector_update(connector, NULL); drm_connector_cec_phys_addr_invalidate(connector); - return; + return ret; } if (connector->hdmi.funcs->read_edid) @@ -1174,10 +1177,12 @@ drm_atomic_helper_connector_hdmi_update(struct drm_connector *connector, drm_edid_free(drm_edid); if (status == connector_status_connected) { - // TODO: also handle scramber, HDMI sink is now connected. + ret = drm_scdc_sync_status(connector, true, ctx); drm_connector_hdmi_audio_plugged_notify(connector, true); drm_connector_cec_phys_addr_set(connector); } + + return ret; } /** @@ -1191,10 +1196,31 @@ drm_atomic_helper_connector_hdmi_update(struct drm_connector *connector, void drm_atomic_helper_connector_hdmi_hotplug(struct drm_connector *connector, enum drm_connector_status status) { - drm_atomic_helper_connector_hdmi_update(connector, status); + drm_atomic_helper_connector_hdmi_update(connector, status, NULL); } EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_hotplug); +/** + * drm_atomic_helper_connector_hdmi_hotplug_ctx - Handle the hotplug event for the HDMI connector + * @connector: A pointer to the HDMI connector + * @status: Connection status + * @ctx: Lock acquisition context to be used for resetting CRTC + * + * This function should be called as a part of the .detect() / .detect_ctx() + * callbacks for all status changes. + * + * Returns: + * Zero on success, error code on failure. + * If @ctx is set, it might also return -EDEADLK. + */ +int drm_atomic_helper_connector_hdmi_hotplug_ctx(struct drm_connector *connector, + enum drm_connector_status status, + struct drm_modeset_acquire_ctx *ctx) +{ + return drm_atomic_helper_connector_hdmi_update(connector, status, ctx); +} +EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_hotplug_ctx); + /** * drm_atomic_helper_connector_hdmi_force - HDMI Connector implementation of the force callback * @connector: A pointer to the HDMI connector @@ -1206,6 +1232,6 @@ EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_hotplug); */ void drm_atomic_helper_connector_hdmi_force(struct drm_connector *connector) { - drm_atomic_helper_connector_hdmi_update(connector, connector->status); + drm_atomic_helper_connector_hdmi_update(connector, connector->status, NULL); } EXPORT_SYMBOL(drm_atomic_helper_connector_hdmi_force); diff --git a/include/drm/display/drm_hdmi_state_helper.h b/include/drm/display/drm_hdmi_state_helper.h index 13375bd0f4ae..75fedd4a3ba8 100644 --- a/include/drm/display/drm_hdmi_state_helper.h +++ b/include/drm/display/drm_hdmi_state_helper.h @@ -7,6 +7,7 @@ struct drm_atomic_commit; struct drm_connector; struct drm_connector_state; struct drm_display_mode; +struct drm_modeset_acquire_ctx; struct hdmi_audio_infoframe; enum drm_connector_status; @@ -24,6 +25,9 @@ int drm_atomic_helper_connector_hdmi_update_infoframes(struct drm_connector *con struct drm_atomic_commit *state); void drm_atomic_helper_connector_hdmi_hotplug(struct drm_connector *connector, enum drm_connector_status status); +int drm_atomic_helper_connector_hdmi_hotplug_ctx(struct drm_connector *connector, + enum drm_connector_status status, + struct drm_modeset_acquire_ctx *ctx); void drm_atomic_helper_connector_hdmi_force(struct drm_connector *connector); enum drm_mode_status -- 2.54.0
