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Commit cfa576db authored by Nicola Corna's avatar Nicola Corna Committed by Wolfram Sang
Browse files

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: default avatarNicola Corna <nicola@corna.info>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 4dbfb5f4

include/linux/i2c.h

+14 −0
Original line number Diff line number Diff line
@@ -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)

{