From: Linus Walleij linus.walleij@linaro.org

Instead of using the name directly from the I2C client to name the gpio_chip, use dev_name() on the client->dev, so we get the sometimes more unique device name, as I2C has a mechanism for naming its devices explicitly in e.g. board data.

This is a prerequisite for being able to reference uniquely any I2C GPIO expander defined in a board file when setting up GPIO descriptor tables.

Reviewed-by: Robert Jarzmik robert.jarzmik@free.fr Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Cc: stable@vger.kernel.org --- Reported in https://stackoverflow.com/questions/60722524/how-to-specify-the-name-of-a-gp... drivers/gpio/gpio-pca953x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 023a32cfac42..540166443c34 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -449,7 +449,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)

gc->base = chip->gpio_start; gc->ngpio = gpios; - gc->label = chip->client->name; + gc->label = dev_name(&chip->client->dev); gc->parent = &chip->client->dev; gc->owner = THIS_MODULE; gc->names = chip->names;