shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

rtc: sun6i: Switch to the external oscillator

Browse Source 
am: de2aa5b3ee

Change-Id: Idb992e6e94e495e3a9d45a5e74c4fc6473f6d270
This commit is contained in:
Maxime Ripard
2017-03-12 08:32:07 +00:00
committed by android-build-merger
parent fba612f944 de2aa5b3ee
commit 8641dfaed4
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/rtc/rtc-sun6i.c
View File

@@ -37,9 +37,11 @@
/* Control register */
#define SUN6I_LOSC_CTRL 0x0000
#define SUN6I_LOSC_CTRL_KEY (0x16aa << 16)
#define SUN6I_LOSC_CTRL_ALM_DHMS_ACC BIT(9)
#define SUN6I_LOSC_CTRL_RTC_HMS_ACC BIT(8)
#define SUN6I_LOSC_CTRL_RTC_YMD_ACC BIT(7)
#define SUN6I_LOSC_CTRL_EXT_OSC BIT(0)
#define SUN6I_LOSC_CTRL_ACC_MASK GENMASK(9, 7)
/* RTC */
@@ -417,6 +419,10 @@ static int sun6i_rtc_probe(struct platform_device *pdev)
/* disable alarm wakeup */
writel(0, chip->base + SUN6I_ALARM_CONFIG);
/* switch to the external, more precise, oscillator */
writel(SUN6I_LOSC_CTRL_KEY | SUN6I_LOSC_CTRL_EXT_OSC,
chip->base + SUN6I_LOSC_CTRL);
chip->rtc = rtc_device_register("rtc-sun6i", &pdev->dev,
&sun6i_rtc_ops, THIS_MODULE);
if (IS_ERR(chip->rtc)) {