On Tue 09 Jan 17:58 PST 2018, Stephen Boyd wrote:
> Some pinctrl drivers can use the gpiochip irq valid information
> to figure out if certain gpios are exposed to the kernel for
> usage or not. Expose this API so we can use it in the
> pinmux_ops::request ops.
>
> Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Acked-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
> drivers/gpio/gpiolib.c | 5 +++--
> include/linux/gpio/driver.h | 3 +++
> 2 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> index b80936a25caa..c18b7b60ea1d 100644
> --- a/drivers/gpio/gpiolib.c
> +++ b/drivers/gpio/gpiolib.c
> @@ -1503,14 +1503,15 @@ static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip)
> gpiochip->irq.valid_mask = NULL;
> }
>
> -static bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip,
> - unsigned int offset)
> +bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip,
> + unsigned int offset)
> {
> /* No mask means all valid */
> if (likely(!gpiochip->irq.valid_mask))
> return true;
> return test_bit(offset, gpiochip->irq.valid_mask);
> }
> +EXPORT_SYMBOL_GPL(gpiochip_irqchip_irq_valid);
>
> /**
> * gpiochip_set_cascaded_irqchip() - connects a cascaded irqchip to a gpiochip
> diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
> index 7258cd676df4..1ba9a331ec51 100644
> --- a/include/linux/gpio/driver.h
> +++ b/include/linux/gpio/driver.h
> @@ -436,6 +436,9 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip,
> struct lock_class_key *lock_key,
> struct lock_class_key *request_key);
>
> +bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip,
> + unsigned int offset);
> +
> #ifdef CONFIG_LOCKDEP
>
> /*
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
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