From 4f2715af3ff22672c9adcac1687d6fcc8c796c46 Mon Sep 17 00:00:00 2001 From: Rosen Penev Date: Thu, 21 May 2026 16:31:19 -0700 Subject: [PATCH] apm821xx: fix buttons and LEDs Upstream transisitioned from an OF GPIO API to a generic one. Unfortunately they forgot to set parent. Signed-off-by: Rosen Penev Link: https://github.com/openwrt/openwrt/pull/23382 Signed-off-by: Jonas Jelonek --- ...erpc-44x-Set-GPIO-chip-firmware-node.patch | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 target/linux/apm821xx/patches-6.18/100-powerpc-44x-Set-GPIO-chip-firmware-node.patch diff --git a/target/linux/apm821xx/patches-6.18/100-powerpc-44x-Set-GPIO-chip-firmware-node.patch b/target/linux/apm821xx/patches-6.18/100-powerpc-44x-Set-GPIO-chip-firmware-node.patch new file mode 100644 index 0000000000..07682d8baa --- /dev/null +++ b/target/linux/apm821xx/patches-6.18/100-powerpc-44x-Set-GPIO-chip-firmware-node.patch @@ -0,0 +1,30 @@ +From 0f18b7fdec817f94ad9ebeb6076ad914e0334299 Mon Sep 17 00:00:00 2001 +From: Rosen Penev +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 +--- + 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;