[PATCH v2 2/3] device property: Implement device_is_compatible()

Andy Shevchenko
2023-06-09T15:49:14Z

Some users want to use the struct device pointer to see if the
device is compatible in terms of Open Firmware specifications,
i.e. if it has a 'compatible' property and it matches to the
given value. Provide inline helper for the users.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
include/linux/property.h | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/include/linux/property.h b/include/linux/property.h
index 695053c60306..0222b77dd75c 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -85,6 +85,18 @@ bool fwnode_device_is_compatible(const struct fwnode_handle *fwnode, const char
return fwnode_property_match_string(fwnode, "compatible", compat) >= 0;
}

+/**
+ * device_is_compatible - match 'compatible' property of the device with a given string
+ * @dev: Pointer to the struct device
+ * @compat: The string to match 'compatible' property with
+ *
+ * Returns: true if matches, otherwise false.
+ */
+static inline bool device_is_compatible(const struct device *dev, const char *compat)
+{
+ return fwnode_device_is_compatible(dev_fwnode(dev), compat);
+}
+
int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
const char *prop, const char *nargs_prop,
unsigned int nargs, unsigned int index,
--
2.40.0.1.gaa8946217a0b