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generic: 6.12: backport aw9523 fix can_sleep flag

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The GPIO expander is connected via I2C, thus the can_sleep flag has to
be set to true. This fixes spurious "scheduling while atomic" bugs
in the kernel ringbuffer.

Signed-off-by: Milan Krstic <milan.krstic@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/19182
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Milan Krstic 2025-06-13 06:56:14 +00:00 • committed by Robert Marko
parent cf51728467
commit fcb988be1f
1 changed files with 28 additions and 0 deletions
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28
target/linux/generic/backport-6.12/813-v6.16-pinctrl-aw9523-fix-can_sleep-flag-for-GPIO-chip.patch Normal file
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@ -0,0 +1,28 @@
From 5285b5ed04ab6ad40f7b654eefbccd6ae8cbf415 Mon Sep 17 00:00:00 2001
From: Milan Krstic <milan.krstic@gmail.com>
Date: Thu, 3 Jul 2025 14:30:39 +0000
Subject: [PATCH] pinctrl: aw9523: fix can_sleep flag for GPIO chip
The GPIO expander is connected via I2C, thus the can_sleep flag has to
be set to true. This fixes spurious "scheduling while atomic" bugs
in the kernel ringbuffer.
Signed-off-by: David Bauer <mail@david-bauer.net>
Signed-off-by: Milan Krstic <milan.krstic@gmail.com>
Link: https://lore.kernel.org/20250703143039.5809-1-milan.krstic@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/pinctrl/pinctrl-aw9523.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pinctrl/pinctrl-aw9523.c
+++ b/drivers/pinctrl/pinctrl-aw9523.c
@@ -784,7 +784,7 @@ static int aw9523_init_gpiochip(struct a
gc->set_config = gpiochip_generic_config;
gc->parent = dev;
gc->owner = THIS_MODULE;
- gc->can_sleep = false;
+ gc->can_sleep = true;
return 0;
}