From: Tony Lindgren <tony@atomide.com>
Date: Tue, 4 Apr 2017 03:15:55 +0000 (-0700)
Subject: mfd: cpcap: Use ack_invert interrupts
X-Git-Tag: v4.11.7~50
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9eb87dbb26cf3b7efe1c8bd676a05c8e66b846e;p=thirdparty%2Fkernel%2Fstable.git

mfd: cpcap: Use ack_invert interrupts

commit 5a88d4120029601a0868e20774382d312952d3b5 upstream.

We should use ack_invert as the int_read_and_clear() in the Motorola
kernel tree does "ireg_val & ~mreg_val" before writing to the mask
register.

Fixes: 56e1d40d3bea ("mfd: cpcap: Add minimal support")
Tested-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/mfd/motorola-cpcap.c b/drivers/mfd/motorola-cpcap.c
index 920a608af1f11..1d3fec0aa1668 100644
--- a/drivers/mfd/motorola-cpcap.c
+++ b/drivers/mfd/motorola-cpcap.c
@@ -71,6 +71,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
 		.ack_base = CPCAP_REG_MI1,
 		.mask_base = CPCAP_REG_MIM1,
 		.use_ack = true,
+		.ack_invert = true,
 	},
 	{
 		.name = "cpcap-m2",
@@ -79,6 +80,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
 		.ack_base = CPCAP_REG_MI2,
 		.mask_base = CPCAP_REG_MIM2,
 		.use_ack = true,
+		.ack_invert = true,
 	},
 	{
 		.name = "cpcap1-4",
@@ -88,6 +90,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
 		.mask_base = CPCAP_REG_INTM1,
 		.type_base = CPCAP_REG_INTS1,
 		.use_ack = true,
+		.ack_invert = true,
 	},
 };