gpio: nomadik: handle variadic GPIO count

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Read the "ngpios" property to determine the number of GPIOs for a bank.
If not available, fallback to NMK_GPIO_PER_CHIP ie 32 ie the current
behavior.

The IP block always supports 32 GPIOs, but platforms can expose a lesser
amount. The Mobileye EyeQ5 is in this case; one bank is 29 GPIOs and
the other is 23.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-23-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Théo Lebrun 2024-02-28 12:28:21 +01:00 • committed by Linus Walleij

parent 8d74c3dc8f

commit 50bc2a4953

1 changed files with 7 additions and 2 deletions

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drivers/gpio/gpio-nomadik.c

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