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media: ipu-bridge: Add ipu_bridge_get_ipu6()

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Add ipu_bridge_get_ipu6() for obtaining the IPU 6 (or soon later) PCI
device. This isn't technically a job of the IPU bridge, but the
functionality is required in conjunction with the firmware definitions
that necessitate the use of the IPU bridge on many systems.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Antti Laakso <antti.laakso@linux.intel.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
This commit is contained in:
Sakari Ailus 2026-09-07 17:30:21 +03:00
parent 27953c0449
commit eda381fd8c
2 changed files with 15 additions and 0 deletions
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13
drivers/media/pci/intel/ipu-bridge.c
View File

@ -15,6 +15,7 @@
#include <linux/workqueue.h>
#include <media/ipu-bridge.h>
#include <media/ipu6-pci-table.h>
#include <media/v4l2-fwnode.h>
#define ADEV_DEV(adev) ACPI_PTR(&((adev)->dev))
@ -950,6 +951,18 @@ static int ipu_bridge_check_fwnode_graph(struct fwnode_handle *fwnode)
return ipu_bridge_check_fwnode_graph(fwnode->secondary);
}
struct pci_dev *ipu_bridge_get_ipu6(void)
{
struct pci_dev *ipu = NULL;
for (unsigned int i = 0; !ipu && ipu6_pci_tbl[i].vendor; i++)
ipu = pci_get_device(ipu6_pci_tbl[i].vendor,
ipu6_pci_tbl[i].device, NULL);
return ipu;
}
EXPORT_SYMBOL_NS_GPL(ipu_bridge_get_ipu6, "INTEL_IPU_BRIDGE");
static DEFINE_MUTEX(ipu_bridge_mutex);
int ipu_bridge_init(struct device *dev,

2
include/media/ipu-bridge.h
View File

@ -169,11 +169,13 @@ struct ipu_bridge {
};
#if IS_ENABLED(CONFIG_IPU_BRIDGE)
struct pci_dev *ipu_bridge_get_ipu6(void);
int ipu_bridge_init(struct device *dev,
ipu_parse_sensor_fwnode_t parse_sensor_fwnode);
int ipu_bridge_parse_ssdb(struct acpi_device *adev, struct ipu_sensor *sensor);
int ipu_bridge_instantiate_vcm(struct device *sensor);
#else
static inline struct pci_dev *ipu_bridge_get_ipu6(void) { return NULL; }
/* Use a define to avoid the @parse_sensor_fwnode argument getting evaluated */
#define ipu_bridge_init(dev, parse_sensor_fwnode) (0)
static inline int ipu_bridge_instantiate_vcm(struct device *s) { return 0; }