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Date: Wed, 8 Jun 2016 15:32:16 +0100
From: Lee Jones <lee.jones@linaro.org>
To: John Stultz <john.stultz@linaro.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>,
        Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>,
        Wei Xu <xuwei5@hisilicon.com>, Guodong Xu <guodong.xu@linaro.org>
Subject: Re: [RFC][PATCH 3/5] hi655x-pmic: Fixup issue with un-acked
 interrupts
Message-ID: <20160608143216.GJ14888@dell>
References: <1464816460-18750-1-git-send-email-john.stultz@linaro.org>
 <1464816460-18750-4-git-send-email-john.stultz@linaro.org>
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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@gmail.com>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Pawel Moll <pawel.moll@arm.com>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
> Cc: Kumar Gala <galak@codeaurora.org>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
> Cc: Wei Xu <xuwei5@hisilicon.com>
> Cc: Guodong Xu <guodong.xu@linaro.org>
> Signed-off-by: John Stultz <john.stultz@linaro.org>
> ---
>  drivers/mfd/hi655x-pmic.c | 1 +
>  1 file changed, 1 insertion(+)

Seems reasonable.

Acked-by: Lee Jones <lee.jones@linaro.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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