From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752355Ab2HaJYT (ORCPT ); Fri, 31 Aug 2012 05:24:19 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:44444 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752287Ab2HaJYQ convert rfc822-to-8bit (ORCPT ); Fri, 31 Aug 2012 05:24:16 -0400 From: "Kim, Milo" To: Anton Vorontsov CC: David Woodhouse , "linux-kernel@vger.kernel.org" Subject: [PATCH 07/22] lp8727_charger: clear interrrupts at inital time Thread-Topic: [PATCH 07/22] lp8727_charger: clear interrrupts at inital time Thread-Index: Ac2HWmAQc/KMNYhHRwqUI4lP8TzQpQ== Date: Fri, 31 Aug 2012 09:24:09 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [157.87.185.123] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To initialize the device, previous interrupts need to be cleared while loading the driver. Signed-off-by: Milo(Woogyom) Kim --- drivers/power/lp8727_charger.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c index 134ed5c..b5567bc 100644 --- a/drivers/power/lp8727_charger.c +++ b/drivers/power/lp8727_charger.c @@ -17,6 +17,7 @@ #include #include +#define LP8788_NUM_INTREGS 2 #define DEFAULT_DEBOUNCE_MSEC 270 /* Registers */ @@ -136,6 +137,13 @@ static int lp8727_init_device(struct lp8727_chg *pchg) { u8 val; int ret; + u8 intstat[LP8788_NUM_INTREGS]; + + /* clear interrupts */ + ret = lp8727_read_bytes(pchg, INT1, intstat, LP8788_NUM_INTREGS); + if (ret) + return ret; + val = ID200_EN | ADC_EN | CP_EN; ret = lp8727_write_byte(pchg, CTRL1, val); -- 1.7.9.5 Best Regards, Milo