diff options
Diffstat (limited to 'drivers/media/pci/intel/ipu-bridge.c')
| -rw-r--r-- | drivers/media/pci/intel/ipu-bridge.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c index b2cf80d62ba2..735c62c37c22 100644 --- a/drivers/media/pci/intel/ipu-bridge.c +++ b/drivers/media/pci/intel/ipu-bridge.c @@ -2,6 +2,7 @@ /* Author: Dan Scally <djrscally@gmail.com> */ #include <linux/acpi.h> +#include <linux/cleanup.h> #include <linux/device.h> #include <linux/i2c.h> #include <linux/mei_cl_bus.h> @@ -749,6 +750,22 @@ static int ipu_bridge_ivsc_is_ready(void) return ready; } +static int ipu_bridge_check_fwnode_graph(struct fwnode_handle *fwnode) +{ + struct fwnode_handle *endpoint; + + if (IS_ERR_OR_NULL(fwnode)) + return -EINVAL; + + endpoint = fwnode_graph_get_next_endpoint(fwnode, NULL); + if (endpoint) { + fwnode_handle_put(endpoint); + return 0; + } + + return ipu_bridge_check_fwnode_graph(fwnode->secondary); +} + int ipu_bridge_init(struct device *dev, ipu_parse_sensor_fwnode_t parse_sensor_fwnode) { @@ -757,6 +774,9 @@ int ipu_bridge_init(struct device *dev, unsigned int i; int ret; + if (!ipu_bridge_check_fwnode_graph(dev_fwnode(dev))) + return 0; + if (!ipu_bridge_ivsc_is_ready()) return -EPROBE_DEFER; |