This driver calls drm_of_find_panel_or_bridge() with a NULL pointer in the @panel parameter, thus using a reduced feature set of that function. Replace this call with the simpler of_drm_get_bridge_by_endpoint().
Since of_drm_get_bridge_by_endpoint() increases the refcount of the returned bridge, ensure it is put on removal. To achieve this, instead of adding an explicit drm_bridge_put(), migrate to the bridge::next_bridge pointer which is automatically put when the bridge is eventually freed. Reviewed-by: Dmitry Baryshkov <[email protected]> Signed-off-by: Luca Ceresoli <[email protected]> --- drivers/gpu/drm/bridge/lontium-lt8713sx.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt8713sx.c b/drivers/gpu/drm/bridge/lontium-lt8713sx.c index 18fac6a46db4..cee485adf5e5 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8713sx.c +++ b/drivers/gpu/drm/bridge/lontium-lt8713sx.c @@ -32,7 +32,6 @@ DECLARE_CRC8_TABLE(lt8713sx_crc_table); struct lt8713sx { struct device *dev; struct drm_bridge bridge; - struct drm_bridge *next_bridge; struct regmap *regmap; /* Protects all accesses to registers by stopping the on-chip MCU */ @@ -458,7 +457,7 @@ static int lt8713sx_bridge_attach(struct drm_bridge *bridge, struct lt8713sx *lt8713sx = container_of(bridge, struct lt8713sx, bridge); return drm_bridge_attach(encoder, - lt8713sx->next_bridge, + lt8713sx->bridge.next_bridge, bridge, flags); } @@ -537,10 +536,9 @@ static int lt8713sx_probe(struct i2c_client *client) if (IS_ERR(lt8713sx->regmap)) return dev_err_probe(dev, PTR_ERR(lt8713sx->regmap), "regmap i2c init failed\n"); - ret = drm_of_find_panel_or_bridge(lt8713sx->dev->of_node, 1, -1, NULL, - <8713sx->next_bridge); - if (ret < 0) - return ret; + lt8713sx->bridge.next_bridge = of_drm_get_bridge_by_endpoint(lt8713sx->dev->of_node, 1, -1); + if (IS_ERR(lt8713sx->bridge.next_bridge)) + return PTR_ERR(lt8713sx->bridge.next_bridge); ret = lt8713sx_gpio_init(lt8713sx); if (ret < 0) -- 2.54.0
