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i2c: only check scl functions when using generic recovery 

A custom recovery function doesn't need these pointers to be populated
because it may work differently internally.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Tested-by: Peter Griffin <peter.griffin@linaro.org>
This commit is contained in:
Wolfram Sang 2016-05-12 11:25:19 +02:00
parent ef51d3ff0d
commit 3a9ddaf4dc
1 changed files with 5 additions and 3 deletions
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8
drivers/i2c/i2c-core.c
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@ -1594,10 +1594,12 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
bri->get_scl = get_scl_gpio_value;
bri->set_scl = set_scl_gpio_value;
} else if (!bri->set_scl || !bri->get_scl) {
} else if (bri->recover_bus == i2c_generic_scl_recovery) {
/* Generic SCL recovery */
dev_err(&adap->dev, "No {get|set}_gpio() found, not using recovery\n");
adap->bus_recovery_info = NULL;
if (!bri->set_scl || !bri->get_scl) {
dev_err(&adap->dev, "No {get|set}_scl() found, not using recovery\n");
adap->bus_recovery_info = NULL;
}
}
}