[PATCH 2/2] gpio: Add G7 Aspeed gpio controller driver

Markus Elfring Markus.Elfring at web.de
Mon Aug 26 20:56:19 AEST 2024


…
> +++ b/drivers/gpio/gpio-aspeed-g7.c
> @@ -0,0 +1,831 @@
…
> +static void aspeed_gpio_g7_set(struct gpio_chip *gc, unsigned int offset, int val)
> +{
…
> +	raw_spin_lock_irqsave(&gpio->lock, flags);
> +
> +	__aspeed_gpio_g7_set(gc, offset, val);
> +
> +	raw_spin_unlock_irqrestore(&gpio->lock, flags);
> +}
…

Under which circumstances would you become interested to apply a statement
like “guard(raw_spinlock_irqsave)(&gpio->lock);”?
https://elixir.bootlin.com/linux/v6.11-rc5/source/include/linux/spinlock.h#L551

Regards,
Markus


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