From: "Kim, Milo" <Milo.Kim@ti.com>
To: Anton Vorontsov <anton.vorontsov@linaro.org>
Cc: David Woodhouse <dwmw2@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH 07/22] lp8727_charger: clear interrrupts at inital time
Date: Fri, 31 Aug 2012 09:24:09 +0000 [thread overview]
Message-ID: <A874F61F95741C4A9BA573A70FE3998F41EF1EBA@DQHE02.ent.ti.com> (raw)
To initialize the device, previous interrupts need to be cleared
while loading the driver.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
---
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 <linux/power_supply.h>
#include <linux/platform_data/lp8727.h>
+#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
reply other threads:[~2012-08-31 9:24 UTC|newest]
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