On 26/11/2025 14:54, Bartosz Golaszewski wrote:
On Wed, Nov 26, 2025 at 3:51 PM Jon Hunter <[email protected]> wrote:
On 26/11/2025 14:28, Bartosz Golaszewski wrote:
On Wed, Nov 26, 2025 at 3:24 PM Jon Hunter <[email protected]> wrote:
Hi Bartosz,
On 12/11/2025 13:55, Bartosz Golaszewski wrote:
From: Bartosz Golaszewski <[email protected]>
Some qualcomm platforms use shared GPIOs. Enable support for them by
selecting the Kconfig switch provided by GPIOLIB.
Acked-by: Linus Walleij <[email protected]>
Signed-off-by: Bartosz Golaszewski <[email protected]>
---
arch/arm64/Kconfig.platforms | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index
13173795c43d4f28e2d47acc700f80a165d44671..3dbff0261f0add0516d8cb3fd0f29e277af94f20
100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -316,6 +316,7 @@ config ARCH_QCOM
select GPIOLIB
select PINCTRL
select HAVE_PWRCTRL if PCI
+ select HAVE_SHARED_GPIOS
help
This enables support for the ARMv8 based Qualcomm chipsets.
I have noticed the following kernel warning on our Tegra platforms ...
ERR KERN OF: /__symbols__: could not find phandle 794981747
Bisect is pointing to this commit and reverting this does prevent it. I
am not sure if anyone else has seen this?
I assume it comes from drivers/of/base.c:1295 - could you please post
a stack trace of how you're getting there?
Yes looks like it does and I see ...
[ 0.123356] OF: /__symbols__: could not find phandle 794981747
[ 0.123401] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted
6.18.0-rc7-next-20251126-00002-g1cd98992c487-dirty #19 PREEMPT
[ 0.123418] Hardware name: NVIDIA Jetson AGX Xavier Developer Kit (DT)
[ 0.123447] Call trace:
[ 0.123453] show_stack+0x18/0x24 (C)
[ 0.123472] dump_stack_lvl+0x74/0x8c
[ 0.123487] dump_stack+0x18/0x24
[ 0.123518] of_phandle_iterator_next+0x18c/0x1c4
[ 0.123536] of_count_phandle_with_args+0xa0/0xc8
[ 0.123551] gpio_shared_of_traverse+0xb8/0x47c
[ 0.123566] gpio_shared_of_traverse+0x158/0x47c
[ 0.123578] gpio_shared_init+0x110/0x1f0
[ 0.123595] do_one_initcall+0x7c/0x1c0
[ 0.123607] kernel_init_freeable+0x204/0x2e0
[ 0.123622] kernel_init+0x20/0x1d8
[ 0.123637] ret_from_fork+0x10/0x20
Is the device-tree used here upstream? Can you enable DEBUG_GPIO in
Kconfig and post the entire kernel log on pastebin?
Yes this is the upstream device-tree in
arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts. OK I will get the
entire log for review.
Jon
--
nvpublic
