From: Thomas Blocher Date: Tue, 30 Jul 2024 23:16:26 +0000 (+0200) Subject: pinctrl: at91: make it work with current gpiolib X-Git-Tag: v6.6.53~47 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=af08f4506114422eb21e8440a2fc6efe4ce6c5ec;p=thirdparty%2Fkernel%2Fstable.git pinctrl: at91: make it work with current gpiolib [ Upstream commit 752f387faaae0ae2e84d3f496922524785e77d60 ] pinctrl-at91 currently does not support the gpio-groups devicetree property and has no pin-range. Because of this at91 gpios stopped working since patch commit 2ab73c6d8323fa1e ("gpio: Support GPIO controllers without pin-ranges") This was discussed in the patches commit fc328a7d1fcce263 ("gpio: Revert regression in sysfs-gpio (gpiolib.c)") commit 56e337f2cf132632 ("Revert "gpio: Revert regression in sysfs-gpio (gpiolib.c)"") As a workaround manually set pin-range via gpiochip_add_pin_range() until a) pinctrl-at91 is reworked to support devicetree gpio-groups b) another solution as mentioned in commit 56e337f2cf132632 ("Revert "gpio: Revert regression in sysfs-gpio (gpiolib.c)"") is found Signed-off-by: Thomas Blocher Link: https://lore.kernel.org/5b992862-355d-f0de-cd3d-ff99e67a4ff1@ek-dev.de Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 608f55c5ba5fe..ad30fd47a4bb0 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1410,8 +1410,11 @@ static int at91_pinctrl_probe(struct platform_device *pdev) /* We will handle a range of GPIO pins */ for (i = 0; i < gpio_banks; i++) - if (gpio_chips[i]) + if (gpio_chips[i]) { pinctrl_add_gpio_range(info->pctl, &gpio_chips[i]->range); + gpiochip_add_pin_range(&gpio_chips[i]->chip, dev_name(info->pctl->dev), 0, + gpio_chips[i]->range.pin_base, gpio_chips[i]->range.npins); + } dev_info(dev, "initialized AT91 pinctrl driver\n");