From 515b3852fe1a973ef0c64777ef1a7e1aa6730a48 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Sat, 17 Feb 2018 22:58:43 +0200 Subject: [PATCH] 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: b0c860e2053a ("i2c: designware: add i2c gpio recovery option") Reported-by: Dominik Brodowski Signed-off-by: Andy Shevchenko Tested-by: Dominik Brodowski Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-designware-master.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 55926ef41ef17..05732531829fe 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -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; } -- 2.39.5