diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 69bbfbaa4680..708642a9e19b 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -1041,6 +1041,9 @@ static int intel_backlight_device_register(struct intel_connector *connector) if (WARN_ON(panel->backlight.device)) return -ENODEV; + if (!panel->backlight.present) + return 0; + WARN_ON(panel->backlight.max == 0); memset(&props, 0, sizeof(props)); @@ -1076,6 +1079,10 @@ static int intel_backlight_device_register(struct intel_connector *connector) panel->backlight.device = NULL; return -ENODEV; } + + DRM_DEBUG_KMS("Connector %s backlight sysfs interface registered\n", + connector->base.name); + return 0; } @@ -1302,15 +1309,12 @@ int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe) return ret; } - intel_backlight_device_register(intel_connector); - panel->backlight.present = true; - DRM_DEBUG_KMS("backlight initialized, %s, brightness %u/%u, " - "sysfs interface %sregistered\n", + DRM_DEBUG_KMS("Connector %s backlight initialized, %s, brightness %u/%u\n", + connector->name, panel->backlight.enabled ? "enabled" : "disabled", - panel->backlight.level, panel->backlight.max, - panel->backlight.device ? "" : "not "); + panel->backlight.level, panel->backlight.max); return 0; } @@ -1321,7 +1325,6 @@ void intel_panel_destroy_backlight(struct drm_connector *connector) struct intel_panel *panel = &intel_connector->panel; panel->backlight.present = false; - intel_backlight_device_unregister(intel_connector); } /* Set up chip specific backlight functions */ @@ -1384,3 +1387,19 @@ void intel_panel_fini(struct intel_panel *panel) drm_mode_destroy(intel_connector->base.dev, panel->downclock_mode); } + +void intel_backlight_register(struct drm_device *dev) +{ + struct intel_connector *connector; + + list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) + intel_backlight_device_register(connector); +} + +void intel_backlight_unregister(struct drm_device *dev) +{ + struct intel_connector *connector; + + list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) + intel_backlight_device_unregister(connector); +} |