diff options
| author | venu byravarasu <vbyravarasu@nvidia.com> | 2011-05-13 17:51:27 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:43:15 -0800 |
| commit | 755bcb6dd81a3669a6109b08f9ba361c0427d6ac (patch) | |
| tree | 54bb8359afa86156ac37a0b00a98a9fa3d997020 /drivers/rtc | |
| parent | 6fda10401207854eba72bfbcbc51e32237b6fbd8 (diff) | |
rtc: tps6591x: enabling backup battery charging
With this change:
1. Enabled backup battery charging
2. Setting RTC default time, if it is not set previously.
bug 796507
Original-Change-Id: Idffb99f24718cd8b15f38b6ca8109969ef47be81
Reviewed-on: http://git-master/r/31522
Tested-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Reviewed-by: Gaurav Sarode <gsarode@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: Narendra Damahe <ndamahe@nvidia.com>
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Rebase-Id: R6a38294f28a7efb288b89b5d8ad39daae73bd5ca
Diffstat (limited to 'drivers/rtc')
| -rw-r--r--[-rwxr-xr-x] | drivers/rtc/rtc-tps6591x.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/rtc/rtc-tps6591x.c b/drivers/rtc/rtc-tps6591x.c index 30d6b4f1842a..b22aa4a9be0d 100755..100644 --- a/drivers/rtc/rtc-tps6591x.c +++ b/drivers/rtc/rtc-tps6591x.c @@ -38,7 +38,10 @@ #define RTC_ALARM 0x8 #define RTC_INT 0x12 #define RTC_RESET_STATUS 0x16 +#define RTC_BBCH_REG 0x39 +#define RTC_BBCH_SEL 0x02 +#define RTC_BBCH_EN 0x01 #define ENABLE_ALARM_INT 0x8 #define RTC_RESET_VALUE 0x80 #define ALARM_INT_STATUS 0x40 @@ -411,6 +414,7 @@ static int __devinit tps6591x_rtc_probe(struct platform_device *pdev) { struct tps6591x_rtc_platform_data *pdata = pdev->dev.platform_data; struct tps6591x_rtc *rtc; + struct rtc_time tm; int err; u8 reg; @@ -449,6 +453,13 @@ static int __devinit tps6591x_rtc_probe(struct platform_device *pdev) return -EBUSY; } + reg = RTC_BBCH_SEL | RTC_BBCH_EN; + tps6591x_write_regs(&pdev->dev, RTC_BBCH_REG, 1, ®); + if (err) { + dev_err(&pdev->dev, "unable to program Charger reg\n"); + return -EBUSY; + } + reg = ENABLE_ALARM_INT; tps6591x_write_regs(&pdev->dev, RTC_INT, 1, ®); if (err) { @@ -456,13 +467,16 @@ static int __devinit tps6591x_rtc_probe(struct platform_device *pdev) return -EBUSY; } - if (pdata->time.tm_year < 2000 || pdata->time.tm_year > 2100) { - memset(&pdata->time, 0, sizeof(pdata->time)); - pdata->time.tm_year = RTC_YEAR_OFFSET; - pdata->time.tm_mday = 1; - } else - pdata->time.tm_year -= OS_REF_YEAR; - tps6591x_rtc_set_time(&pdev->dev, &pdata->time); + tps6591x_rtc_read_time(&pdev->dev, &tm); + if ((tm.tm_year < RTC_YEAR_OFFSET || tm.tm_year > (RTC_YEAR_OFFSET + 99))){ + if (pdata->time.tm_year < 2000 || pdata->time.tm_year > 2100) { + memset(&pdata->time, 0, sizeof(pdata->time)); + pdata->time.tm_year = RTC_YEAR_OFFSET; + pdata->time.tm_mday = 1; + } else + pdata->time.tm_year -= OS_REF_YEAR; + tps6591x_rtc_set_time(&pdev->dev, &pdata->time); + } if (pdata && (pdata->irq >= 0)) { rtc->irq = pdata->irq; |