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gpio: pca953x: fix cache_only and IRQ state on restore_context() failure

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When pca953x_restore_context() fails, cache_only is left disabled and
the IRQ left enabled, even though register synchronization may not have
completed successfully. Restore cache_only and disable the IRQ again on
failure, matching the state set by pca953x_save_context().

Fixes: ec5bde6201 ("gpio: pca953x: Split pca953x_restore_context() and pca953x_save_context()")
Fixes: 3e38f94606 ("gpio: pca953x: fix IRQ storm on system wake up")
Cc: stable@vger.kernel.org
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260727080205.16353-1-phucduc.bui@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
This commit is contained in:
bui duc phuc
2026-07-27 14:58:26 +02:00
committed by Bartosz Golaszewski
parent 67ff4bf723
commit d233087c19
1 changed files with 13 additions and 2 deletions
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drivers/gpio/gpio-pca953x.c
+13 -2
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@@ -1378,9 +1378,20 @@ static int pca953x_restore_context(struct pca953x_chip *chip)
regcache_mark_dirty(chip->regmap);
ret = pca953x_regcache_sync(chip);
if (ret)
return ret;
goto err;
return regcache_sync(chip->regmap);
ret = regcache_sync(chip->regmap);
if (ret)
goto err;
return 0;
err:
if (chip->client->irq > 0)
disable_irq(chip->client->irq);
regcache_cache_only(chip->regmap, true);
return ret;
}
static void pca953x_save_context(struct pca953x_chip *chip)