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authorNicola Corna <nicola@corna.info>2015-10-29 12:34:26 +0100
committerWolfram Sang <wsa@the-dreams.de>2015-11-30 18:37:27 +0100
commitcfa576db834cacc1bb01bc41b2f61a8b578e67c5 (patch)
treeadcba35e7c8756f30b5d6aad52211189b901ca05 /include/linux/i2c.h
parent4dbfb5f4401f845903679afbfeb4b97b47bb2331 (diff)
downloadop-kernel-dev-cfa576db834cacc1bb01bc41b2f61a8b578e67c5.zip
op-kernel-dev-cfa576db834cacc1bb01bc41b2f61a8b578e67c5.tar.gz
i2c: add i2c_check_quirks helper function
This patch adds a i2c_check_quirks helper function to check the quirk flags of an i2c adapter, in a similar way to i2c_check_functionality. Signed-off-by: Nicola Corna <nicola@corna.info> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'include/linux/i2c.h')
-rw-r--r--include/linux/i2c.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 96970024..51028f3 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -617,6 +617,20 @@ static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func)
return (func & i2c_get_functionality(adap)) == func;
}
+/**
+ * i2c_check_quirks() - Function for checking the quirk flags in an i2c adapter
+ * @adap: i2c adapter
+ * @quirks: quirk flags
+ *
+ * Return: true if the adapter has all the specified quirk flags, false if not
+ */
+static inline bool i2c_check_quirks(struct i2c_adapter *adap, u64 quirks)
+{
+ if (!adap->quirks)
+ return false;
+ return (adap->quirks->flags & quirks) == quirks;
+}
+
/* Return the adapter number for a specific adapter */
static inline int i2c_adapter_id(struct i2c_adapter *adap)
{
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