From 414236b887a2270d714edf3654eaa0def6315ec6 Mon Sep 17 00:00:00 2001 From: Chris Packham Date: Wed, 26 Jul 2023 11:13:08 +1200 Subject: [PATCH] i2c: i2c-gpio: Correctly handle new {sda, scl}-gpios bindings gpio_request_list_by_name() returns the number of gpios requested. Notably it swallows the underlying -ENOENT when the "gpios" property does not exist. Update the i2c-gpio driver to check for ret == 0 before trying the new sda-gpios/scl-gpios properties. Signed-off-by: Chris Packham --- drivers/i2c/i2c-gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/i2c-gpio.c b/drivers/i2c/i2c-gpio.c index 4ed9e9e7cd..c1fc290bd2 100644 --- a/drivers/i2c/i2c-gpio.c +++ b/drivers/i2c/i2c-gpio.c @@ -339,7 +339,7 @@ static int i2c_gpio_of_to_plat(struct udevice *dev) /* "gpios" is deprecated and replaced by "sda-gpios" + "scl-gpios". */ ret = gpio_request_list_by_name(dev, "gpios", bus->gpios, ARRAY_SIZE(bus->gpios), 0); - if (ret == -ENOENT) { + if (ret == 0) { ret = gpio_request_by_name(dev, "sda-gpios", 0, &bus->gpios[PIN_SDA], 0); if (ret < 0) -- 2.39.5