static int
nv40_get_intensity(struct backlight_device *bd)
{
- struct nouveau_drm *drm = bl_get_data(bd);
+ struct nouveau_encoder *nv_encoder = bl_get_data(bd);
+ struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
struct nvif_object *device = &drm->client.device.object;
int val = (nvif_rd32(device, NV40_PMC_BACKLIGHT) &
NV40_PMC_BACKLIGHT_MASK) >> 16;
static int
nv40_set_intensity(struct backlight_device *bd)
{
- struct nouveau_drm *drm = bl_get_data(bd);
+ struct nouveau_encoder *nv_encoder = bl_get_data(bd);
+ struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
struct nvif_object *device = &drm->client.device.object;
int val = bd->props.brightness;
int reg = nvif_rd32(device, NV40_PMC_BACKLIGHT);
};
static int
-nv40_backlight_init(struct drm_connector *connector)
+nv40_backlight_init(struct nouveau_encoder *encoder,
+ struct backlight_properties *props,
+ const struct backlight_ops **ops)
{
- struct nouveau_drm *drm = nouveau_drm(connector->dev);
- struct nouveau_backlight *bl;
+ struct nouveau_drm *drm = nouveau_drm(encoder->base.base.dev);
struct nvif_object *device = &drm->client.device.object;
- struct backlight_properties props;
- char backlight_name[BL_NAME_SIZE];
- int ret = 0;
if (!(nvif_rd32(device, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK))
- return 0;
-
- bl = kzalloc(sizeof(*bl), GFP_KERNEL);
- if (!bl)
- return -ENOMEM;
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_RAW;
- props.max_brightness = 31;
- if (!nouveau_get_backlight_name(backlight_name, bl)) {
- NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");
- goto fail_alloc;
- }
-
- bl->dev = backlight_device_register(backlight_name, connector->kdev,
- drm, &nv40_bl_ops, &props);
- if (IS_ERR(bl->dev)) {
- if (bl->id >= 0)
- ida_simple_remove(&bl_ida, bl->id);
-
- ret = PTR_ERR(bl->dev);
- goto fail_alloc;
- }
-
- nouveau_connector(connector)->backlight = bl;
- bl->dev->props.brightness = nv40_get_intensity(bl->dev);
- backlight_update_status(bl->dev);
+ return -ENODEV;
+ props->type = BACKLIGHT_RAW;
+ props->max_brightness = 31;
+ *ops = &nv40_bl_ops;
return 0;
-fail_alloc:
- kfree(bl);
- return ret;
}
static int
};
static int
-nv50_backlight_init(struct drm_connector *connector)
+nv50_backlight_init(struct nouveau_encoder *nv_encoder,
+ struct backlight_properties *props,
+ const struct backlight_ops **ops)
{
- struct nouveau_drm *drm = nouveau_drm(connector->dev);
+ struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
struct nvif_object *device = &drm->client.device.object;
- struct nouveau_encoder *nv_encoder;
- struct nouveau_backlight *bl;
- struct backlight_properties props;
- const struct backlight_ops *ops;
- char backlight_name[BL_NAME_SIZE];
- int ret = 0;
-
- nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
- if (!nv_encoder) {
- nv_encoder = find_encoder(connector, DCB_OUTPUT_DP);
- if (!nv_encoder)
- return -ENODEV;
- }
if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(ffs(nv_encoder->dcb->or) - 1)))
- return 0;
-
- bl = kzalloc(sizeof(*bl), GFP_KERNEL);
- if (!bl)
- return -ENOMEM;
+ return -ENODEV;
if (drm->client.device.info.chipset <= 0xa0 ||
drm->client.device.info.chipset == 0xaa ||
drm->client.device.info.chipset == 0xac)
- ops = &nv50_bl_ops;
+ *ops = &nv50_bl_ops;
else
- ops = &nva3_bl_ops;
+ *ops = &nva3_bl_ops;
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_RAW;
- props.max_brightness = 100;
- if (!nouveau_get_backlight_name(backlight_name, bl)) {
- NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");
- goto fail_alloc;
- }
+ props->type = BACKLIGHT_RAW;
+ props->max_brightness = 100;
- bl->dev = backlight_device_register(backlight_name, connector->kdev,
- nv_encoder, ops, &props);
- if (IS_ERR(bl->dev)) {
- if (bl->id >= 0)
- ida_simple_remove(&bl_ida, bl->id);
-
- ret = PTR_ERR(bl->dev);
- goto fail_alloc;
- }
-
- nouveau_connector(connector)->backlight = bl;
- bl->dev->props.brightness = bl->dev->ops->get_brightness(bl->dev);
- backlight_update_status(bl->dev);
return 0;
-
-fail_alloc:
- kfree(bl);
- return ret;
}
int
nouveau_backlight_init(struct drm_connector *connector)
{
struct nouveau_drm *drm = nouveau_drm(connector->dev);
+ struct nouveau_backlight *bl;
+ struct nouveau_encoder *nv_encoder = NULL;
struct nvif_device *device = &drm->client.device;
+ char backlight_name[BL_NAME_SIZE];
+ struct backlight_properties props = {0};
+ const struct backlight_ops *ops;
+ int ret;
if (apple_gmux_present()) {
NV_INFO_ONCE(drm, "Apple GMUX detected: not registering Nouveau backlight interface\n");
return 0;
}
- if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS &&
- connector->connector_type != DRM_MODE_CONNECTOR_eDP)
+ if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
+ nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
+ else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
+ nv_encoder = find_encoder(connector, DCB_OUTPUT_DP);
+ else
+ return 0;
+
+ if (!nv_encoder)
return 0;
switch (device->info.family) {
case NV_DEVICE_INFO_V0_CURIE:
- return nv40_backlight_init(connector);
+ ret = nv40_backlight_init(nv_encoder, &props, &ops);
+ break;
case NV_DEVICE_INFO_V0_TESLA:
case NV_DEVICE_INFO_V0_FERMI:
case NV_DEVICE_INFO_V0_KEPLER:
case NV_DEVICE_INFO_V0_MAXWELL:
- return nv50_backlight_init(connector);
+ ret = nv50_backlight_init(nv_encoder, &props, &ops);
+ break;
default:
return 0;
}
+
+ if (ret == -ENODEV)
+ return 0;
+ else if (ret)
+ return ret;
+
+ bl = kzalloc(sizeof(*bl), GFP_KERNEL);
+ if (!bl)
+ return -ENOMEM;
+
+ if (!nouveau_get_backlight_name(backlight_name, bl)) {
+ NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");
+ goto fail_alloc;
+ }
+
+ bl->dev = backlight_device_register(backlight_name, connector->kdev,
+ nv_encoder, ops, &props);
+ if (IS_ERR(bl->dev)) {
+ if (bl->id >= 0)
+ ida_simple_remove(&bl_ida, bl->id);
+ ret = PTR_ERR(bl->dev);
+ goto fail_alloc;
+ }
+
+ nouveau_connector(connector)->backlight = bl;
+ bl->dev->props.brightness = bl->dev->ops->get_brightness(bl->dev);
+ backlight_update_status(bl->dev);
+
+ return 0;
+
+fail_alloc:
+ kfree(bl);
+ return ret;
}
void