linux-kernel - Re: [RFC][PATCH 3/5] hi655x-pmic: Fixup issue with un-acked interrupts

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Date:	Wed, 8 Jun 2016 15:32:16 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	John Stultz <john.stultz@...aro.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>,
	Wei Xu <xuwei5@...ilicon.com>,
	Guodong Xu <guodong.xu@...aro.org>
Subject: Re: [RFC][PATCH 3/5] hi655x-pmic: Fixup issue with un-acked
 interrupts

On Wed, 01 Jun 2016, John Stultz wrote:

> While trying to get the powerkey to function, I found
> when pressing the key, I would get infinitely repeating
> interrupts.
> 
> After digging around a bit, it seems we didn't set the
> ack_base value for the regmap irqchip logic, so nothing
> was acking the interrupt.
> 
> This patch adds the ack_base, which seems to make things
> work.
> 
> Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Pawel Moll <pawel.moll@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: Ian Campbell <ijc+devicetree@...lion.org.uk>
> Cc: Kumar Gala <galak@...eaurora.org>
> Cc: Lee Jones <lee.jones@...aro.org>
> Cc: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>
> Cc: Wei Xu <xuwei5@...ilicon.com>
> Cc: Guodong Xu <guodong.xu@...aro.org>
> Signed-off-by: John Stultz <john.stultz@...aro.org>
> ---
>  drivers/mfd/hi655x-pmic.c | 1 +
>  1 file changed, 1 insertion(+)

Seems reasonable.

Acked-by: Lee Jones <lee.jones@...aro.org>

> diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c
> index 3511035..4a3fdbc 100644
> --- a/drivers/mfd/hi655x-pmic.c
> +++ b/drivers/mfd/hi655x-pmic.c
> @@ -50,6 +50,7 @@ static const struct regmap_irq_chip hi655x_irq_chip = {
>  	.num_regs = 1,
>  	.num_irqs = ARRAY_SIZE(hi655x_irqs),
>  	.status_base = HI655X_IRQ_STAT_BASE,
> +	.ack_base = HI655X_IRQ_STAT_BASE,
>  	.mask_base = HI655X_IRQ_MASK_BASE,
>  };
>  

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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