If SCL was low but SDA high, we would simply raise SCL but not send a STOP. To make sure we always send STOP initially, lower both lines first. Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> --- drivers/i2c/algos/i2c-algo-bit.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index c76cf51975d0..344649847885 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -650,6 +650,8 @@ static int __i2c_bit_add_bus(struct i2c_adapter *adap, adap->quirks = &i2c_bit_quirk_no_clk_stretch; /* Bring bus to a known state. Looks like STOP if bus is not free yet */ + scllo(bit_adap); + sdalo(bit_adap); sclhi(bit_adap); sdahi(bit_adap); -- 2.11.0
