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Revert "gpio: swnode: don't use the swnode's name as the key for GPIO lookup"

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This reverts commit 25decf0469.

This software node change doesn't actually fix any current issues
with the kernel, it is an improvement to the lookup process rather
than fixing a live bug. It also causes a couple of regressions with
shipping laptops, which relied on the label based lookup.

There is a fix for the regressions in mainline, the first 5 patches
of [1]. However, those patches are fairly substantial changes and
given the patch causing the regression doesn't actually fix a bug
it seems better to just revert it in stable.

CC: stable@vger.kernel.org # 6.12, 6.17
Link: https://lore.kernel.org/linux-sound/20251120-reset-gpios-swnodes-v7-0-a100493a0f4b@linaro.org/ [1]
Closes: https://github.com/thesofproject/linux/issues/5599
Closes: https://github.com/thesofproject/linux/issues/5603
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Charles Keepax
2025-11-25 10:29:24 +00:00
committed by Greg Kroah-Hartman
parent 4a4abb0f96
commit d45e929de0
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpiolib-swnode.c
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@@ -41,7 +41,7 @@ static struct gpio_device *swnode_get_gpio_device(struct fwnode_handle *fwnode)
!strcmp(gdev_node->name, GPIOLIB_SWNODE_UNDEFINED_NAME)) !strcmp(gdev_node->name, GPIOLIB_SWNODE_UNDEFINED_NAME))
return ERR_PTR(-ENOENT); return ERR_PTR(-ENOENT);
gdev = gpio_device_find_by_fwnode(fwnode); gdev = gpio_device_find_by_label(gdev_node->name);
return gdev ?: ERR_PTR(-EPROBE_DEFER); return gdev ?: ERR_PTR(-EPROBE_DEFER);
} }