Commit d1fa7452 authored Feb 17, 2018 by Andy Shevchenko Committed by Wolfram Sang Feb 22, 2018

i2c: designware: Consider SCL GPIO optional



GPIO library can return -ENOSYS for the failed request.
Instead of failing ->probe() in this case override error code to 0.

Fixes: ca382f5b ("i2c: designware: add i2c gpio recovery option")
Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

parent c396b9a0

drivers/i2c/busses/i2c-designware-master.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -644,7 +644,7 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev)
		gpio = devm_gpiod_get(dev->dev, "scl", GPIOD_OUT_HIGH);
		if (IS_ERR(gpio)) {
		r = PTR_ERR(gpio);
		if (r == -ENOENT)
		if (r == -ENOENT \|\| r == -ENOSYS)
		return 0;
		return r;
		}