linux-kernel - [PATCH v2 1/2] device property: Introduce fwnode_device_is

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Message-Id: <20221005152947.71696-2-andriy.shevchenko@linux.intel.com>
Date:   Wed,  5 Oct 2022 18:29:46 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org
Cc:     Qiang Zhao <qiang.zhao@....com>, Li Yang <leoyang.li@....com>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
Subject: [PATCH v2 1/2] device property: Introduce fwnode_device_is_compatible() helper

The fwnode_device_is_compatible() helper searches for the
given string in the "compatible" string array property and,
if found, returns true.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 include/linux/property.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/include/linux/property.h b/include/linux/property.h
index 1c26d263d5e4..701570423943 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -55,7 +55,6 @@ int device_property_read_string(struct device *dev, const char *propname,
 int device_property_match_string(struct device *dev,
 				 const char *propname, const char *string);
 
-bool fwnode_device_is_available(const struct fwnode_handle *fwnode);
 bool fwnode_property_present(const struct fwnode_handle *fwnode,
 			     const char *propname);
 int fwnode_property_read_u8_array(const struct fwnode_handle *fwnode,
@@ -77,6 +76,15 @@ int fwnode_property_read_string(const struct fwnode_handle *fwnode,
 				const char *propname, const char **val);
 int fwnode_property_match_string(const struct fwnode_handle *fwnode,
 				 const char *propname, const char *string);
+
+bool fwnode_device_is_available(const struct fwnode_handle *fwnode);
+
+static inline
+bool fwnode_device_is_compatible(const struct fwnode_handle *fwnode, const char *compat)
+{
+	return fwnode_property_match_string(fwnode, "compatible", compat) >= 0;
+}
+
 int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
 				       const char *prop, const char *nargs_prop,
 				       unsigned int nargs, unsigned int index,
-- 
2.35.1