linux-kernel - [patch v1 1/1]mfd: fix for DA9055 driver initialization

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Message-ID: <4B6D9C89CD8BA349A71B74CA32C47E5850DA82AF@KCHJEXMB02.kpit.com>
Date:	Thu, 27 Jun 2013 14:06:45 +0000
From:	Ankur Raina <Ankur.Raina@...tcummins.com>
To:	"sameo@...ux.intel.com" <sameo@...ux.intel.com>
CC:	"broonie@...nsource.wolfsonmicro.com" 
	<broonie@...nsource.wolfsonmicro.com>,
	"axel.lin@...il.com" <axel.lin@...il.com>,
	"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"dchen@...semi.com" <dchen@...semi.com>
Subject: [patch v1 1/1]mfd: fix for DA9055 driver initialization

This patch adds support for clearing events received while
powering up DA9055.

Signed-off-by: Ankur <Ankur.Raina@...tcummins.com>
---
 drivers/mfd/da9055-core.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/mfd/da9055-core.c b/drivers/mfd/da9055-core.c
index 49cb23d..e4c0596 100644
--- a/drivers/mfd/da9055-core.c
+++ b/drivers/mfd/da9055-core.c
@@ -381,6 +381,7 @@ int da9055_device_init(struct da9055 *da9055)
 {
 	struct da9055_pdata *pdata = da9055->dev->platform_data;
 	int ret;
+	uint8_t clear_events[3] = {0xFF, 0xFF, 0xFF};
 
 	if (pdata && pdata->init != NULL)
 		pdata->init(da9055);
@@ -390,6 +391,10 @@ int da9055_device_init(struct da9055 *da9055)
 	else
 		da9055->irq_base = pdata->irq_base;
 
+	ret = da9055_group_write(da9055, DA9055_REG_EVENT_A, 3, clear_events);
+	if (ret < 0)
+		return ret;
+
 	ret = regmap_add_irq_chip(da9055->regmap, da9055->chip_irq,
 				  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
 				  da9055->irq_base, &da9055_regmap_irq_chip,
-- 
1.7.1





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