Re: [PATCH 1/2] gpio: mxs: use enable/disable regs to (un)mask irqs
From: Marek Vasut
Date: Fri Oct 21 2016 - 14:10:16 EST
On 10/21/2016 03:11 PM, Sascha Hauer wrote:
> The mxs gpio controller does not only have a mask register to mask
> interrupts, but also enable/disable registers. Use the enable/disable
> registers rather than the mask register. This does not have any
> advantage for now, but makes the next patch simpler.
>
> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Reviewed-by: Marek Vasut <marex@xxxxxxx>
Thanks
> ---
> drivers/gpio/gpio-mxs.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
> index b9daa0b..1cf579f 100644
> --- a/drivers/gpio/gpio-mxs.c
> +++ b/drivers/gpio/gpio-mxs.c
> @@ -211,12 +211,13 @@ static int __init mxs_gpio_init_gc(struct mxs_gpio_port *port, int irq_base)
>
> ct = gc->chip_types;
> ct->chip.irq_ack = irq_gc_ack_set_bit;
> - ct->chip.irq_mask = irq_gc_mask_clr_bit;
> - ct->chip.irq_unmask = irq_gc_mask_set_bit;
> + ct->chip.irq_mask = irq_gc_mask_disable_reg;
> + ct->chip.irq_unmask = irq_gc_unmask_enable_reg;
> ct->chip.irq_set_type = mxs_gpio_set_irq_type;
> ct->chip.irq_set_wake = mxs_gpio_set_wake_irq;
> ct->regs.ack = PINCTRL_IRQSTAT(port) + MXS_CLR;
> - ct->regs.mask = PINCTRL_IRQEN(port);
> + ct->regs.enable = PINCTRL_IRQEN(port) + MXS_SET;
> + ct->regs.disable = PINCTRL_IRQEN(port) + MXS_CLR;
>
> irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_NESTED_LOCK,
> IRQ_NOREQUEST, 0);
>
--
Best regards,
Marek Vasut