linux-kernel - [PATCH 2/3] mfd: hi655x-pmic: Fixup issue with un-acked interrupts

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Date:	Thu,  9 Jun 2016 22:34:36 -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>,
	Lee Jones <lee.jones@...aro.org>,
	Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>,
	Feng Chen <puck.chen@...ilicon.com>,
	Wei Xu <xuwei5@...ilicon.com>,
	Guodong Xu <guodong.xu@...aro.org>
Subject: [PATCH 2/3] mfd: 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: Lee Jones <lee.jones@...aro.org>
Cc: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>
Cc: Feng Chen <puck.chen@...ilicon.com>
Cc: Wei Xu <xuwei5@...ilicon.com>
Cc: Guodong Xu <guodong.xu@...aro.org>
Acked-by: Lee Jones <lee.jones@...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 05ddc78..68ab370 100644
--- a/drivers/mfd/hi655x-pmic.c
+++ b/drivers/mfd/hi655x-pmic.c
@@ -45,6 +45,7 @@ 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