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Revert "ath79: remove GPIO driver earlier registration hack"

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This reverts commit f444dea428.

It seems that some devices using GPIO WDT have really short WDT timeouts
and when using module_platform_driver registration it happens too late
and thus WDT will timeout and reset the board.

So, for now lets return the postcore_initcall hack for now.

Fixes: f444dea428 ("ath79: remove GPIO driver earlier registration hack")
Signed-off-by: Joan Moreau <jom@grosjo.net>
Link: https://github.com/openwrt/openwrt/pull/16035
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Joan Moreau 2024-07-30 14:20:20 +00:00 committed by Robert Marko
parent ca4469045f
commit 226af7a77c
1 changed files with 26 additions and 0 deletions
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26
target/linux/ath79/patches-6.6/340-register_gpio_driver_earlier.patch Normal file
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@ -0,0 +1,26 @@
From: John Crispin <john@phrozen.org>
Subject: ath79: Register GPIO driver earlier
HACK: register the GPIO driver earlier to ensure that gpio_request calls
from mach files succeed.
Submitted-by: John Crispin <john@phrozen.org>
---
drivers/gpio/gpio-ath79.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpio/gpio-ath79.c
+++ b/drivers/gpio/gpio-ath79.c
@@ -300,7 +300,11 @@ static struct platform_driver ath79_gpio
.probe = ath79_gpio_probe,
};
-module_platform_driver(ath79_gpio_driver);
+static int __init ath79_gpio_init(void)
+{
+ return platform_driver_register(&ath79_gpio_driver);
+}
+postcore_initcall(ath79_gpio_init);
MODULE_DESCRIPTION("Atheros AR71XX/AR724X/AR913X GPIO API support");
MODULE_LICENSE("GPL v2");