33 #include <linux/apple-gmux.h>
45 #define BL_NAME_SIZE 15 // 12 for name + 2 for digits + 1 for '\0'
49 			   struct nouveau_backlight *bl)  in nouveau_get_backlight_name()  argument
59 	bl->id = nb;  in nouveau_get_backlight_name()
67 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nv40_get_intensity()
68 	struct nvif_object *device = &drm->client.device.object;  in nv40_get_intensity()
79 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nv40_set_intensity()
80 	struct nvif_object *device = &drm->client.device.object;  in nv40_set_intensity()
81 	int val = bd->props.brightness;  in nv40_set_intensity()
101 	struct nouveau_drm *drm = nouveau_drm(encoder->base.base.dev);  in nv40_backlight_init()
102 	struct nvif_object *device = &drm->client.device.object;  in nv40_backlight_init()
105 		return -ENODEV;  in nv40_backlight_init()
107 	props->max_brightness = 31;  in nv40_backlight_init()
119 	struct drm_connector *connector = dev_get_drvdata(bd->dev.parent);  in nv50_edp_get_brightness()
120 	struct drm_device *dev = connector->dev;  in nv50_edp_get_brightness()
128 	ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx);  in nv50_edp_get_brightness()
129 	if (ret == -EDEADLK)  in nv50_edp_get_brightness()
134 	crtc = connector->state->crtc;  in nv50_edp_get_brightness()
138 	ret = drm_modeset_lock(&crtc->mutex, &ctx);  in nv50_edp_get_brightness()
139 	if (ret == -EDEADLK)  in nv50_edp_get_brightness()
144 	if (!crtc->state->active)  in nv50_edp_get_brightness()
147 	ret = bd->props.brightness;  in nv50_edp_get_brightness()
160 	struct drm_connector *connector = dev_get_drvdata(bd->dev.parent);  in nv50_edp_set_brightness()
162 	struct drm_device *dev = connector->dev;  in nv50_edp_set_brightness()
164 	struct drm_dp_aux *aux = &nv_connector->aux;  in nv50_edp_set_brightness()
165 	struct nouveau_backlight *nv_bl = nv_connector->backlight;  in nv50_edp_set_brightness()
171 	ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx);  in nv50_edp_set_brightness()
172 	if (ret == -EDEADLK)  in nv50_edp_set_brightness()
177 	crtc = connector->state->crtc;  in nv50_edp_set_brightness()
181 	ret = drm_modeset_lock(&crtc->mutex, &ctx);  in nv50_edp_set_brightness()
182 	if (ret == -EDEADLK)  in nv50_edp_set_brightness()
187 	if (crtc->state->active)  in nv50_edp_set_brightness()
188 		ret = drm_edp_backlight_set_level(aux, &nv_bl->edp_info, bd->props.brightness);  in nv50_edp_set_brightness()
209 	return nvif_outp_bl_get(&nv_encoder->outp);  in nv50_get_intensity()
217 	return nvif_outp_bl_set(&nv_encoder->outp, backlight_get_brightness(bd));  in nv50_set_intensity()
230 nv50_backlight_init(struct nouveau_backlight *bl,  in nv50_backlight_init()  argument
236 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nv50_backlight_init()
240 	 * so nv_conn->base.status is not set yet.  in nv50_backlight_init()
242 	if (nvif_outp_bl_get(&nv_encoder->outp) < 0 ||  in nv50_backlight_init()
243 	    drm_helper_probe_detect(&nv_conn->base, NULL, false) != connector_status_connected)  in nv50_backlight_init()
244 		return -ENODEV;  in nv50_backlight_init()
246 	if (nv_conn->type == DCB_CONNECTOR_eDP) {  in nv50_backlight_init()
252 		ret = drm_dp_dpcd_read(&nv_conn->aux, DP_EDP_DPCD_REV, edp_dpcd,  in nv50_backlight_init()
262 				 nv_conn->base.name);  in nv50_backlight_init()
264 			ret = drm_edp_backlight_init(&nv_conn->aux, &bl->edp_info, 0, edp_dpcd,  in nv50_backlight_init()
269 			ret = drm_edp_backlight_enable(&nv_conn->aux, &bl->edp_info, current_level);  in nv50_backlight_init()
272 					 nv_conn->base.name, ret);  in nv50_backlight_init()
277 			props->brightness = current_level;  in nv50_backlight_init()
278 			props->max_brightness = bl->edp_info.max;  in nv50_backlight_init()
279 			bl->uses_dpcd = true;  in nv50_backlight_init()
285 	props->max_brightness = 100;  in nv50_backlight_init()
292 	struct nouveau_drm *drm = nouveau_drm(connector->dev);  in nouveau_backlight_init()
293 	struct nouveau_backlight *bl;  in nouveau_backlight_init()  local
295 	struct nvif_device *device = &drm->client.device;  in nouveau_backlight_init()
306 	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)  in nouveau_backlight_init()
308 	else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)  in nouveau_backlight_init()
316 	bl = kzalloc(sizeof(*bl), GFP_KERNEL);  in nouveau_backlight_init()
317 	if (!bl)  in nouveau_backlight_init()
318 		return -ENOMEM;  in nouveau_backlight_init()
320 	switch (device->info.family) {  in nouveau_backlight_init()
332 		ret = nv50_backlight_init(bl, nouveau_connector(connector),  in nouveau_backlight_init()
341 		if (ret == -ENODEV)  in nouveau_backlight_init()
351 	if (!nouveau_get_backlight_name(backlight_name, bl)) {  in nouveau_backlight_init()
352 		NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");  in nouveau_backlight_init()
357 	bl->dev = backlight_device_register(backlight_name, connector->kdev,  in nouveau_backlight_init()
359 	if (IS_ERR(bl->dev)) {  in nouveau_backlight_init()
360 		if (bl->id >= 0)  in nouveau_backlight_init()
361 			ida_free(&bl_ida, bl->id);  in nouveau_backlight_init()
362 		ret = PTR_ERR(bl->dev);  in nouveau_backlight_init()
366 	nouveau_connector(connector)->backlight = bl;  in nouveau_backlight_init()
367 	if (!bl->dev->props.brightness)  in nouveau_backlight_init()
368 		bl->dev->props.brightness =  in nouveau_backlight_init()
369 			bl->dev->ops->get_brightness(bl->dev);  in nouveau_backlight_init()
370 	backlight_update_status(bl->dev);  in nouveau_backlight_init()
375 	kfree(bl);  in nouveau_backlight_init()
390 	struct nouveau_backlight *bl = nv_conn->backlight;  in nouveau_backlight_fini()  local
392 	if (!bl)  in nouveau_backlight_fini()
395 	if (bl->id >= 0)  in nouveau_backlight_fini()
396 		ida_free(&bl_ida, bl->id);  in nouveau_backlight_fini()
398 	backlight_device_unregister(bl->dev);  in nouveau_backlight_fini()
399 	nv_conn->backlight = NULL;  in nouveau_backlight_fini()
400 	kfree(bl);  in nouveau_backlight_fini()