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()
116 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nv50_get_intensity()
117 	struct nvif_object *device = &drm->client.device.object;  in nv50_get_intensity()
118 	int or = ffs(nv_encoder->dcb->or) - 1;  in nv50_get_intensity()
131 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nv50_set_intensity()
132 	struct nvif_object *device = &drm->client.device.object;  in nv50_set_intensity()
133 	int or = ffs(nv_encoder->dcb->or) - 1;  in nv50_set_intensity()
135 	u32 val = (bd->props.brightness * div) / 100;  in nv50_set_intensity()
155 	struct drm_connector *connector = dev_get_drvdata(bd->dev.parent);  in nv50_edp_get_brightness()
156 	struct drm_device *dev = connector->dev;  in nv50_edp_get_brightness()
164 	ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx);  in nv50_edp_get_brightness()
165 	if (ret == -EDEADLK)  in nv50_edp_get_brightness()
170 	crtc = connector->state->crtc;  in nv50_edp_get_brightness()
174 	ret = drm_modeset_lock(&crtc->mutex, &ctx);  in nv50_edp_get_brightness()
175 	if (ret == -EDEADLK)  in nv50_edp_get_brightness()
180 	if (!crtc->state->active)  in nv50_edp_get_brightness()
183 	ret = bd->props.brightness;  in nv50_edp_get_brightness()
196 	struct drm_connector *connector = dev_get_drvdata(bd->dev.parent);  in nv50_edp_set_brightness()
198 	struct drm_device *dev = connector->dev;  in nv50_edp_set_brightness()
200 	struct drm_dp_aux *aux = &nv_connector->aux;  in nv50_edp_set_brightness()
201 	struct nouveau_backlight *nv_bl = nv_connector->backlight;  in nv50_edp_set_brightness()
207 	ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx);  in nv50_edp_set_brightness()
208 	if (ret == -EDEADLK)  in nv50_edp_set_brightness()
213 	crtc = connector->state->crtc;  in nv50_edp_set_brightness()
217 	ret = drm_modeset_lock(&crtc->mutex, &ctx);  in nv50_edp_set_brightness()
218 	if (ret == -EDEADLK)  in nv50_edp_set_brightness()
223 	if (crtc->state->active)  in nv50_edp_set_brightness()
224 		ret = drm_edp_backlight_set_level(aux, &nv_bl->edp_info, bd->props.brightness);  in nv50_edp_set_brightness()
244 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nva3_get_intensity()
245 	struct nvif_object *device = &drm->client.device.object;  in nva3_get_intensity()
246 	int or = ffs(nv_encoder->dcb->or) - 1;  in nva3_get_intensity()
262 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nva3_set_intensity()
263 	struct nvif_object *device = &drm->client.device.object;  in nva3_set_intensity()
264 	int or = ffs(nv_encoder->dcb->or) - 1;  in nva3_set_intensity()
281 	return -EINVAL;  in nva3_set_intensity()
294 nv50_backlight_init(struct nouveau_backlight *bl,  in nv50_backlight_init()  argument
300 	struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);  in nv50_backlight_init()
301 	struct nvif_object *device = &drm->client.device.object;  in nv50_backlight_init()
305 	 * so nv_conn->base.status is not set yet.  in nv50_backlight_init()
307 	if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(ffs(nv_encoder->dcb->or) - 1)) ||  in nv50_backlight_init()
308 	    drm_helper_probe_detect(&nv_conn->base, NULL, false) != connector_status_connected)  in nv50_backlight_init()
309 		return -ENODEV;  in nv50_backlight_init()
311 	if (nv_conn->type == DCB_CONNECTOR_eDP) {  in nv50_backlight_init()
317 		ret = drm_dp_dpcd_read(&nv_conn->aux, DP_EDP_DPCD_REV, edp_dpcd,  in nv50_backlight_init()
327 				 nv_conn->base.name);  in nv50_backlight_init()
329 			ret = drm_edp_backlight_init(&nv_conn->aux, &bl->edp_info, 0, edp_dpcd,  in nv50_backlight_init()
334 			ret = drm_edp_backlight_enable(&nv_conn->aux, &bl->edp_info, current_level);  in nv50_backlight_init()
337 					 nv_conn->base.name, ret);  in nv50_backlight_init()
342 			props->brightness = current_level;  in nv50_backlight_init()
343 			props->max_brightness = bl->edp_info.max;  in nv50_backlight_init()
344 			bl->uses_dpcd = true;  in nv50_backlight_init()
349 	if (drm->client.device.info.chipset <= 0xa0 ||  in nv50_backlight_init()
350 	    drm->client.device.info.chipset == 0xaa ||  in nv50_backlight_init()
351 	    drm->client.device.info.chipset == 0xac)  in nv50_backlight_init()
356 	props->max_brightness = 100;  in nv50_backlight_init()
364 	struct nouveau_drm *drm = nouveau_drm(connector->dev);  in nouveau_backlight_init()
365 	struct nouveau_backlight *bl;  in nouveau_backlight_init()  local
367 	struct nvif_device *device = &drm->client.device;  in nouveau_backlight_init()
378 	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)  in nouveau_backlight_init()
380 	else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)  in nouveau_backlight_init()
388 	bl = kzalloc(sizeof(*bl), GFP_KERNEL);  in nouveau_backlight_init()
389 	if (!bl)  in nouveau_backlight_init()
390 		return -ENOMEM;  in nouveau_backlight_init()
392 	switch (device->info.family) {  in nouveau_backlight_init()
404 		ret = nv50_backlight_init(bl, nouveau_connector(connector),  in nouveau_backlight_init()
413 		if (ret == -ENODEV)  in nouveau_backlight_init()
423 	if (!nouveau_get_backlight_name(backlight_name, bl)) {  in nouveau_backlight_init()
424 		NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");  in nouveau_backlight_init()
429 	bl->dev = backlight_device_register(backlight_name, connector->kdev,  in nouveau_backlight_init()
431 	if (IS_ERR(bl->dev)) {  in nouveau_backlight_init()
432 		if (bl->id >= 0)  in nouveau_backlight_init()
433 			ida_free(&bl_ida, bl->id);  in nouveau_backlight_init()
434 		ret = PTR_ERR(bl->dev);  in nouveau_backlight_init()
438 	nouveau_connector(connector)->backlight = bl;  in nouveau_backlight_init()
439 	if (!bl->dev->props.brightness)  in nouveau_backlight_init()
440 		bl->dev->props.brightness =  in nouveau_backlight_init()
441 			bl->dev->ops->get_brightness(bl->dev);  in nouveau_backlight_init()
442 	backlight_update_status(bl->dev);  in nouveau_backlight_init()
447 	kfree(bl);  in nouveau_backlight_init()
462 	struct nouveau_backlight *bl = nv_conn->backlight;  in nouveau_backlight_fini()  local
464 	if (!bl)  in nouveau_backlight_fini()
467 	if (bl->id >= 0)  in nouveau_backlight_fini()
468 		ida_free(&bl_ida, bl->id);  in nouveau_backlight_fini()
470 	backlight_device_unregister(bl->dev);  in nouveau_backlight_fini()
471 	nv_conn->backlight = NULL;  in nouveau_backlight_fini()
472 	kfree(bl);  in nouveau_backlight_fini()