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apm821xx: fix buttons and LEDs

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Upstream transisitioned from an OF GPIO API to a generic one.
Unfortunately they forgot to set parent.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/23382
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
This commit is contained in:
Rosen Penev
2026-05-21 16:31:19 -07:00
committed by Jonas Jelonek
parent fb1c7d7892
commit 4f2715af3f
1 changed files with 30 additions and 0 deletions
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target/linux/apm821xx/patches-6.18/100-powerpc-44x-Set-GPIO-chip-firmware-node.patch
+30
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@@ -0,0 +1,30 @@
From 0f18b7fdec817f94ad9ebeb6076ad914e0334299 Mon Sep 17 00:00:00 2001
From: Rosen Penev <rosenp@gmail.com>
Date: Fri, 15 May 2026 15:54:59 -0700
Subject: [PATCH] powerpc/44x: Set GPIO chip firmware node
The PPC4xx GPIO driver stopped assigning an explicit firmware node
to the gpio_chip when it moved away from of_mm_gpiochip_add_data().
Restore that association from the platform device so OF GPIO lookup
can match phandles to the registered gpiochip.
Tested on: Cisco MX60W. No more probe deferral.
Assisted-by: Codex:GPT-5.5
Fixes: 1044dbaf2a77 ("powerpc/44x: Change GPIO driver to a proper platform driver")
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
arch/powerpc/platforms/44x/gpio.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/powerpc/platforms/44x/gpio.c
+++ b/arch/powerpc/platforms/44x/gpio.c
@@ -169,6 +169,7 @@ static int ppc4xx_gpio_probe(struct plat
gc = &chip->gc;
+ gc->parent = dev;
gc->base = -1;
gc->ngpio = 32;
gc->direction_input = ppc4xx_gpio_dir_in;