Thread (7 messages) flat view 7 messages, 4 authors, 2026-08-03

Re: [PATCHv2] powerpc/44x: Set GPIO chip parent

From: Rosen Penev <hidden>
Date: 2026-07-17 19:05:47
Also in: lkml

On Sat, May 16, 2026 at 11:38 PM Rosen Penev [off-list ref] wrote:
The PPC4xx GPIO driver stopped assigning an explicit parent
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")
Did I forget to ping someone?
quoted hunk ↗ jump to hunk
Signed-off-by: Rosen Penev <redacted>
---
 arch/powerpc/platforms/44x/gpio.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/44x/gpio.c b/arch/powerpc/platforms/44x/gpio.c
index aea0d913b59d..4413a94cf7a6 100644
--- a/arch/powerpc/platforms/44x/gpio.c
+++ b/arch/powerpc/platforms/44x/gpio.c
@@ -169,6 +169,7 @@ static int ppc4xx_gpio_probe(struct platform_device *ofdev)

        gc = &chip->gc;

+       gc->parent = dev;
        gc->base = -1;
        gc->ngpio = 32;
        gc->direction_input = ppc4xx_gpio_dir_in;
--
2.54.0
  
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