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| author | Thomas Blocher <thomas.blocher@ek-dev.de> | 2024-07-31 01:16:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-08 16:20:25 +0100 |
| commit | f03b3fe7d76650144e07fc2e95e51e8143e2fd40 (patch) | |
| tree | 4862b6408b900ab0c4f978b04dfb4b1fab454019 /drivers/pinctrl | |
| parent | f7fe7300117844675e95c450f219a16e5f6e4b94 (diff) | |
| download | linux-stable-f03b3fe7d76650144e07fc2e95e51e8143e2fd40.tar.gz linux-stable-f03b3fe7d76650144e07fc2e95e51e8143e2fd40.tar.bz2 linux-stable-f03b3fe7d76650144e07fc2e95e51e8143e2fd40.zip | |
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 <thomas.blocher@ek-dev.de>
Link: https://lore.kernel.org/5b992862-355d-f0de-cd3d-ff99e67a4ff1@ek-dev.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-at91.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 39a55fd85b19..4e6e151db11f 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1398,8 +1398,11 @@ 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(&pdev->dev, "initialized AT91 pinctrl driver\n"); |