From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
Introduce device_match_type() to simplify operations below:
- Test if a device matches with specified device type.
- Find a device with specified device type via various device finding APIs.
device_find_child() will use it as argument to simplify operations later.
Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
---
drivers/base/core.c | 6 ++++++
include/linux/device/bus.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index a122ea1d84a3b08fce16dd1abdfa7746d31dc430..5bda2edcd83149decd50bb5e9a0ed4267b1f8f6c 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -5239,6 +5239,12 @@ int device_match_name(struct device *dev, const void *name)
}
EXPORT_SYMBOL_GPL(device_match_name);
+int device_match_type(struct device *dev, const void *type)
+{
+ return dev->type == type;
+}
+EXPORT_SYMBOL_GPL(device_match_type);
+
int device_match_of_node(struct device *dev, const void *np)
{
return dev->of_node == np;
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index cdc4757217f9bb4b36b5c3b8a48bab45737e44c5..bc3fd74bb763e6d2d862859bd2ec3f0d443f2d7a 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -131,6 +131,7 @@ typedef int (*device_match_t)(struct device *dev, const void *data);
/* Generic device matching functions that all busses can use to match with */
int device_match_name(struct device *dev, const void *name);
+int device_match_type(struct device *dev, const void *type);
int device_match_of_node(struct device *dev, const void *np);
int device_match_fwnode(struct device *dev, const void *fwnode);
int device_match_devt(struct device *dev, const void *pdevt);
--
2.34.1
