diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/rtc/rtc-ds1511.c | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/rtc/rtc-ds1511.c')
| -rw-r--r-- | kernel/drivers/rtc/rtc-ds1511.c | 42 |
1 files changed, 5 insertions, 37 deletions
diff --git a/kernel/drivers/rtc/rtc-ds1511.c b/kernel/drivers/rtc/rtc-ds1511.c index 7415c2b4d..da3d04ce8 100644 --- a/kernel/drivers/rtc/rtc-ds1511.c +++ b/kernel/drivers/rtc/rtc-ds1511.c @@ -64,7 +64,7 @@ enum ds1511reg { #define DS1511_KIE 0x04 #define DS1511_WDE 0x02 #define DS1511_WDS 0x01 -#define DS1511_RAM_MAX 0xff +#define DS1511_RAM_MAX 0x100 #define RTC_CMD DS1511_CONTROL_B #define RTC_CMD1 DS1511_CONTROL_A @@ -159,7 +159,7 @@ ds1511_wdog_set(unsigned long deciseconds) /* * set wdog enable and wdog 'steering' bit to issue a reset */ - rtc_write(DS1511_WDE | DS1511_WDS, RTC_CMD); + rtc_write(rtc_read(RTC_CMD) | DS1511_WDE | DS1511_WDS, RTC_CMD); } void @@ -407,26 +407,10 @@ ds1511_nvram_read(struct file *filp, struct kobject *kobj, { ssize_t count; - /* - * if count is more than one, turn on "burst" mode - * turn it off when you're done - */ - if (size > 1) - rtc_write((rtc_read(RTC_CMD) | DS1511_BME), RTC_CMD); - - if (pos > DS1511_RAM_MAX) - pos = DS1511_RAM_MAX; - - if (size + pos > DS1511_RAM_MAX + 1) - size = DS1511_RAM_MAX - pos + 1; - rtc_write(pos, DS1511_RAMADDR_LSB); - for (count = 0; size > 0; count++, size--) + for (count = 0; count < size; count++) *buf++ = rtc_read(DS1511_RAMDATA); - if (count > 1) - rtc_write((rtc_read(RTC_CMD) & ~DS1511_BME), RTC_CMD); - return count; } @@ -437,26 +421,10 @@ ds1511_nvram_write(struct file *filp, struct kobject *kobj, { ssize_t count; - /* - * if count is more than one, turn on "burst" mode - * turn it off when you're done - */ - if (size > 1) - rtc_write((rtc_read(RTC_CMD) | DS1511_BME), RTC_CMD); - - if (pos > DS1511_RAM_MAX) - pos = DS1511_RAM_MAX; - - if (size + pos > DS1511_RAM_MAX + 1) - size = DS1511_RAM_MAX - pos + 1; - rtc_write(pos, DS1511_RAMADDR_LSB); - for (count = 0; size > 0; count++, size--) + for (count = 0; count < size; count++) rtc_write(*buf++, DS1511_RAMDATA); - if (count > 1) - rtc_write((rtc_read(RTC_CMD) & ~DS1511_BME), RTC_CMD); - return count; } @@ -490,7 +458,7 @@ static int ds1511_rtc_probe(struct platform_device *pdev) /* * turn on the clock and the crystal, etc. */ - rtc_write(0, RTC_CMD); + rtc_write(DS1511_BME, RTC_CMD); rtc_write(0, RTC_CMD1); /* * clear the wdog counter |