* Sebastian Reichel <s...@kernel.org> [170301 16:24]:
> CPCAP can sense if IRQ is currently set or not. This
> functionality is required for a few subdevices, such
> as the power button and usb phy modules.
>
> Signed-off-by: Sebastian Reichel <s...@kernel.org>
> ---
> Changes since PATCHv1:
> - Newly introduced patch
> ---
> drivers/mfd/motorola-cpcap.c | 25 +++++++++++++++++++++++++
> include/linux/mfd/motorola-cpcap.h | 2 ++
> 2 files changed, 27 insertions(+)
>
> diff --git a/drivers/mfd/motorola-cpcap.c b/drivers/mfd/motorola-cpcap.c
> index 6aeada7d7ce5..b2a53750d579 100644
> --- a/drivers/mfd/motorola-cpcap.c
> +++ b/drivers/mfd/motorola-cpcap.c
> @@ -32,6 +32,31 @@ struct cpcap_ddata {
> struct regmap *regmap;
> };
>
> +static int cpcap_sense_irq(struct regmap *regmap, int irq)
> +{
> + int reg = CPCAP_REG_INTS1 + (irq / 16) * 4;
> + int mask = 1 << (irq % 16);
> + int err, val;
> +
> + if (irq < 0 || irq > 64)
> + return -EINVAL;
> +
> + err = regmap_read(regmap, reg, &val);
> + if (err)
> + return err;
> +
> + return !!(val & mask);
> +}
> +
> +int cpcap_sense_virq(struct regmap *regmap, int virq)
> +{
> + struct regmap_irq_chip_data *d = irq_get_chip_data(virq);
> + int base = regmap_irq_chip_get_base(d);
> +
> + return cpcap_sense_irq(regmap, virq - base);
> +}
> +EXPORT_SYMBOL_GPL(cpcap_sense_irq);
You have a typo here, should be cpcap_sense_virq for the exported one :)
Other than that my ack is still valid.
Regards,
Tony
