01.02.2021 00:28, Saravana Kannan пишет: >> This patch causes these new errors on NVIDIA Tegra30 Nexus 7 using recent linux-next: >> >> gpio-1022 (cpu-pwr-req-hog): hogged as input >> max77620-pinctrl max77620-pinctrl: pin gpio4 already requested by max77620-pinctrl; cannot claim for gpiochip1 >> max77620-pinctrl max77620-pinctrl: pin-4 (gpiochip1) status -22 >> max77620-pinctrl max77620-pinctrl: could not request pin 4 (gpio4) from group gpio4 on device max77620-pinctrl >> gpio_stub_drv gpiochip1: Error applying setting, reverse things back >> gpio_stub_drv: probe of gpiochip1 failed with error -22 >> >> Please fix, thanks in advance. > I have a partial guess on why this is happening. So can you try this patch? > > Thanks, > Saravana > > --- a/drivers/gpio/gpiolib.c > +++ b/drivers/gpio/gpiolib.c > @@ -4213,6 +4213,8 @@ static int gpio_stub_drv_probe(struct device *dev) > * gpio_device of the GPIO chip with the firmware node and then simply > * bind it to this stub driver. > */ > + if (dev->fwnode && dev->fwnode->dev != dev) > + return -EBUSY; > return 0; > } This change doesn't help, exactly the same errors are still there.
