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authorChris Packham <judge.packham@gmail.com>2023-07-26 11:13:08 +1200
committerStefan Roese <sr@denx.de>2023-07-31 13:50:57 +0200
commit414236b887a2270d714edf3654eaa0def6315ec6 (patch)
treeba0be3a6cb4c1ca68e3a8c6f5dc88e42b73869c6 /drivers/i2c
parenta36d59ba99a19c777d896d4c70e75975654e2831 (diff)
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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 <judge.packham@gmail.com>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/i2c-gpio.c2
1 files changed, 1 insertions, 1 deletions
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)