From: Marc-André Lureau Date: Fri, 18 Oct 2013 14:11:28 +0000 (+0200) Subject: drm: return if changed in drm_helper_hpd_irq_event() X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=b8206d3916c15a2939b85f21673bdf39e4c8d023;p=openwrt%2Fstaging%2Fblogic.git drm: return if changed in drm_helper_hpd_irq_event() The caller may want to know whether the configuration was changed, and if an hotplug event was sent. Signed-off-by: Marc-André Lureau Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 5fcb9d487672..55ea4ac6fd50 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -1131,14 +1131,14 @@ void drm_kms_helper_poll_fini(struct drm_device *dev) } EXPORT_SYMBOL(drm_kms_helper_poll_fini); -void drm_helper_hpd_irq_event(struct drm_device *dev) +bool drm_helper_hpd_irq_event(struct drm_device *dev) { struct drm_connector *connector; enum drm_connector_status old_status; bool changed = false; if (!dev->mode_config.poll_enabled) - return; + return false; mutex_lock(&dev->mode_config.mutex); list_for_each_entry(connector, &dev->mode_config.connector_list, head) { @@ -1163,5 +1163,7 @@ void drm_helper_hpd_irq_event(struct drm_device *dev) if (changed) drm_kms_helper_hotplug_event(dev); + + return changed; } EXPORT_SYMBOL(drm_helper_hpd_irq_event); diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index f43d556bf40b..ef6ad3a8e58e 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -163,7 +163,7 @@ static inline void drm_connector_helper_add(struct drm_connector *connector, extern int drm_helper_resume_force_mode(struct drm_device *dev); extern void drm_kms_helper_poll_init(struct drm_device *dev); extern void drm_kms_helper_poll_fini(struct drm_device *dev); -extern void drm_helper_hpd_irq_event(struct drm_device *dev); +extern bool drm_helper_hpd_irq_event(struct drm_device *dev); extern void drm_kms_helper_hotplug_event(struct drm_device *dev); extern void drm_kms_helper_poll_disable(struct drm_device *dev);