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powerpc/44x: Set GPIO chip parent

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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: 1044dbaf2a ("powerpc/44x: Change GPIO driver to a proper platform driver")
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260517063754.21819-1-rosenp@gmail.com
This commit is contained in:
Rosen Penev 2026-05-16 23:37:54 -07:00 committed by Madhavan Srinivasan
parent ca16219e9b
commit b9254d222d
1 changed files with 1 additions and 0 deletions
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arch/powerpc/platforms/44x/gpio.c
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@ -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;