From: 蔡伟立 <cwl@rock-chips.com>
Date: Mon, 5 Sep 2011 10:31:29 +0000 (+0800)
Subject: close rtc out clock when system powerdown
X-Git-Tag: firefly_0821_release~9767^2~39
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6d247d11aed66288035669417c1f3f62d10ae28f;p=firefly-linux-kernel-4.4.55.git

close rtc out clock when system powerdown
---

diff --git a/drivers/rtc/rtc-HYM8563.c b/drivers/rtc/rtc-HYM8563.c
old mode 100644
new mode 100755
index 341f20d550d9..c949925e0055
--- a/drivers/rtc/rtc-HYM8563.c
+++ b/drivers/rtc/rtc-HYM8563.c
@@ -478,6 +478,19 @@ static int __devexit hym8563_remove(struct i2c_client *client)
 	return 0;
 }
 
+
+void hym8563_shutdown(struct i2c_client * client)
+{	u8 regs[2];	
+    int ret; 	
+    //disable clkout	
+    regs[0] = 0x00;	
+    ret=hym8563_i2c_set_regs(client, RTC_CLKOUT, regs, 1);	
+    if(ret<0)	
+        printk("rtc shutdown is error\n");
+}
+
+
+
 static const struct i2c_device_id hym8563_id[] = {
 	{ "rtc_hym8563", 0 },
 	{ }
@@ -491,6 +504,7 @@ static struct i2c_driver hym8563_driver = {
 	},
 	.probe		= hym8563_probe,
 	.remove		= __devexit_p(hym8563_remove),
+	.shutdown=hym8563_shutdown,
 	.id_table	= hym8563_id,
 };