[PATCH 4/5] i2c: add i2c_check_quirks helper function
From: Nicola Corna <hidden>
Date: 2015-10-29 11:34:26
Also in:
linux-i2c, linux-iio
Subsystem:
i2c subsystem, the rest · Maintainers:
Wolfram Sang, Linus Torvalds
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 <redacted> --- include/linux/i2c.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 9697002..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) {
--
2.6.1