linux-kernel - [PATCH 2/9] mfd: arizona: Add register bits for general purpose switch

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Date:	Wed, 16 Sep 2015 10:42:14 +0100
From:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:	<cw00.choi@...sung.com>, <lee.jones@...aro.org>
CC:	<myungjoo.ham@...sung.com>, <sameo@...ux.intel.com>,
	<patches@...nsource.wolfsonmicro.com>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH 2/9] mfd: arizona: Add register bits for general purpose switch

The switch is typically used in conjunction with the MICDET clamp in
order to suppress pops and clicks associated with jack insertion.

Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/mfd/wm5110-tables.c       |    2 ++
 include/linux/mfd/arizona/pdata.h |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 5f604e0..aae17d6 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -1481,6 +1481,7 @@ static const struct reg_default wm5110_reg_default[] = {
 	{ 0x00000C04, 0xA101 },    /* R3076  - GPIO5 CTRL */
 	{ 0x00000C0F, 0x0400 },    /* R3087  - IRQ CTRL 1 */
 	{ 0x00000C10, 0x1000 },    /* R3088  - GPIO Debounce Config */
+	{ 0x00000C18, 0x0000 },    /* R3096  - GP Switch 1 */
 	{ 0x00000C20, 0x8002 },    /* R3104  - Misc Pad Ctrl 1 */
 	{ 0x00000C21, 0x8001 },    /* R3105  - Misc Pad Ctrl 2 */
 	{ 0x00000C22, 0x0000 },    /* R3106  - Misc Pad Ctrl 3 */
@@ -2528,6 +2529,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_GPIO5_CTRL:
 	case ARIZONA_IRQ_CTRL_1:
 	case ARIZONA_GPIO_DEBOUNCE_CONFIG:
+	case ARIZONA_GP_SWITCH_1:
 	case ARIZONA_MISC_PAD_CTRL_1:
 	case ARIZONA_MISC_PAD_CTRL_2:
 	case ARIZONA_MISC_PAD_CTRL_3:
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 92f31ffa..57b45ca 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -184,6 +184,9 @@ struct arizona_pdata {
 
 	/** GPIO for primary IRQ (used for edge triggered emulation) */
 	int irq_gpio;
+
+	/** General purpose switch control */
+	unsigned int gpsw;
 };
 
 #endif
-- 
1.7.2.5

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