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SubjectRe: [PATCH 1/1] irqchip: al-fic: add support for irq retrigger
On Mon, 09 Sep 2019 09:39:18 +0100,
Talel Shenhar <talel@amazon.com> wrote:

Hi Talel,

>
> Introduce interrupts retrigger support for Amazon's Annapurna Labs Fabric
> Interrupt Controller.
>
> Signed-off-by: Talel Shenhar <talel@amazon.com>
> ---
> drivers/irqchip/irq-al-fic.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/drivers/irqchip/irq-al-fic.c b/drivers/irqchip/irq-al-fic.c
> index 1a57cee..0b0a737 100644
> --- a/drivers/irqchip/irq-al-fic.c
> +++ b/drivers/irqchip/irq-al-fic.c
> @@ -15,6 +15,7 @@
>
> /* FIC Registers */
> #define AL_FIC_CAUSE 0x00
> +#define AL_FIC_SET_CAUSE 0x08
> #define AL_FIC_MASK 0x10
> #define AL_FIC_CONTROL 0x28
>
> @@ -126,6 +127,16 @@ static void al_fic_irq_handler(struct irq_desc *desc)
> chained_irq_exit(irqchip, desc);
> }
>
> +static int al_fic_irq_retrigger(struct irq_data *data)
> +{
> + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
> + struct al_fic *fic = gc->private;
> +
> + writel_relaxed(BIT(data->hwirq), fic->base + AL_FIC_SET_CAUSE);
> +
> + return 1;
> +}
> +
> static int al_fic_register(struct device_node *node,
> struct al_fic *fic)
> {
> @@ -159,6 +170,7 @@ static int al_fic_register(struct device_node *node,
> gc->chip_types->chip.irq_unmask = irq_gc_mask_clr_bit;
> gc->chip_types->chip.irq_ack = irq_gc_ack_clr_bit;
> gc->chip_types->chip.irq_set_type = al_fic_irq_set_type;
> + gc->chip_types->chip.irq_retrigger = al_fic_irq_retrigger;
> gc->chip_types->chip.flags = IRQCHIP_SKIP_SET_WAKE;
> gc->private = fic;

Looks good to me. Is this a fix or a new feature? If the former, I can
queue it up for -rc1.

M.

--
Jazz is not dead, it just smells funny.

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