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

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Date:	Wed,  1 Jun 2016 14:27:38 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	John Stultz <john.stultz@...aro.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>,
	Lee Jones <lee.jones@...aro.org>,
	Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>,
	Wei Xu <xuwei5@...ilicon.com>,
	Guodong Xu <guodong.xu@...aro.org>
Subject: [RFC][PATCH 3/5] hi655x-pmic: Fixup issue with un-acked interrupts

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(+)

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,
 };
 
-- 
1.9.1