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authorLee Jones <lee.jones@linaro.org>2016-11-07 15:47:38 +0300
committerWolfram Sang <wsa@the-dreams.de>2016-11-17 18:10:20 +0300
commit298d4de1ed003ad91cb49e068d744db0343cacb6 (patch)
treed77c73fe75a2b6b54acef019f08ef55d466c13cd /drivers/i2c
parentcabcf4f6be658b2d4bea26dee89d08fdf67d6811 (diff)
downloadlinux-298d4de1ed003ad91cb49e068d744db0343cacb6.tar.xz
i2c: Match using traditional OF methods, then by vendor-less compatible strings
This function provides a single call for all I2C devices which need to match firstly using traditional OF means i.e by of_node, then if that fails we attempt to match using the supplied I2C client name with a list of supplied compatible strings with the '<vendor>,' string removed. The latter is required due to the unruly naming conventions used currently by I2C devices. Acked-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> [Kieran: Fix static inline usage on !CONFIG_OF] Tested-by: Kieran Bingham <kieran@bingham.xyz> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Tested-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Kieran Bingham <kieran@bingham.xyz> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/i2c-core.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index c588a8504c99..2151d0b353b3 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1799,6 +1799,22 @@ i2c_of_match_device_sysfs(const struct of_device_id *matches,
return NULL;
}
+const struct of_device_id
+*i2c_of_match_device(const struct of_device_id *matches,
+ struct i2c_client *client)
+{
+ const struct of_device_id *match;
+
+ if (!(client && matches))
+ return NULL;
+
+ match = of_match_device(matches, &client->dev);
+ if (match)
+ return match;
+
+ return i2c_of_match_device_sysfs(matches, client);
+}
+EXPORT_SYMBOL_GPL(i2c_of_match_device);
#else
static void of_i2c_register_devices(struct i2c_adapter *adap) { }
#endif /* CONFIG_OF */