02 Mar, 2018

1 commit

• 22652ba72   rtc: stop validating rtc_time in .read_time ... Browse Code »

  The RTC core is always calling rtc_valid_tm after the read_time callback.
  It is not necessary to call it just before returning from the callback.

  Signed-off-by: Alexandre Belloni

  Alexandre Belloni

  2018-03-02 17:09:58 +0800  

26 Oct, 2017

1 commit

• bc3bee025   rtc: pcf8523: add support for trimming the RTC oscillator ... Browse Code »

  Add support for reading and writing the RTC offset register, converting
  it to the corresponding parts-per-billion value.

  When setting the drift, the PCF8523 has two modes: one applies the
  adjustment every two hours, the other applies the adjustment every
  minute. We select between these two modes according to which ever
  gives the closest PPB value to the one requested.

  Signed-off-by: Russell King
  Signed-off-by: Alexandre Belloni

  Russell King

  2017-10-26 05:05:52 +0800  

15 Mar, 2016

1 commit

• ede44c908   rtc: pcf8523: properly handle oscillator stop bit ... Browse Code »

  The time and date register of the pcf8223 are undefined after a power
  reset. Properly handle the OS bit and return -EINVAL when that bit is set.

  It is properly removed when setting the time.

  This solves an issue where the time and date may be valid for
  rtc_valid_tm() but is not the current time.

  Signed-off-by: Alexandre Belloni

  Alexandre Belloni

  2016-03-15 00:08:30 +0800  

12 Jan, 2016

1 commit

• fbbf53f70   rtc: pcf8523: refuse to write dates later than 2099 ... Browse Code »

  When the chip increments the YEAR register and it already holds
  bin2bcd(99) it reads as 0 afterwards. With this behaviour the last valid
  day (without trickery) that has a representation is 2099-12-31 23:59:59.
  So refuse to write later dates.

  Signed-off-by: Uwe Kleine-König
  Signed-off-by: Alexandre Belloni

  Uwe Kleine-König

  2016-01-12 03:19:54 +0800  

05 Sep, 2015

1 commit

• b28845433   rtc: Drop owner assignment from i2c_driver ... Browse Code »

  i2c_driver does not need to set an owner because i2c_register_driver()
  will set it.

  Signed-off-by: Krzysztof Kozlowski
  Signed-off-by: Alexandre Belloni

  Krzysztof Kozlowski

  2015-09-05 19:19:06 +0800  

07 May, 2014

1 commit

• 35738392b   drivers/rtc/rtc-pcf8523.c: fix month definition ... Browse Code »

  PCF8523 uses 1-12 to represent month according to datasheet.
  link: www.nxp.com/documents/data_sheet/PCF8523.pdf.

  Signed-off-by: Chris Cui
  Cc: Alessandro Zummo
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Chris Cui

  2014-05-07 04:04:58 +0800  

04 Jul, 2013

1 commit

• af99ef9cc   drivers/rtc/rtc-pcf8523.c: remove empty function ... Browse Code »

  After the switch to devm_* functions and the removal of
  rtc_device_unregister(), the 'remove' function does not do anything.
  Delete it.

  Signed-off-by: Sachin Kamat
  Acked-by: Thierry Reding
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Sachin Kamat

  2013-07-04 07:07:57 +0800  

30 Apr, 2013

1 commit

• 288031bfe   rtc: rtc-pcf8523: use devm_rtc_device_register() ... Browse Code »

  devm_rtc_device_register() is device managed and makes cleanup
  paths simpler.

  Signed-off-by: Jingoo Han
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Jingoo Han

  2013-04-30 09:28:26 +0800  

22 Feb, 2013

1 commit

• f32bc70d5   rtc-pcf8523: add low battery voltage support ... Browse Code »

  Implement reading of the battery voltage low signal for rtc-pcf8523.

  The bit is read-only and cannot be cleared by software, so no
  clear function is implemented.

  [akpm@linux-foundation.org: omit pcf8563_rtc_ioctl() if CONFIG_RTC_INTF_DEV=n]
  Signed-off-by: Jesper Nilsson
  Reviewed-by: Thierry Reding
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Jesper Nilsson

  2013-02-22 09:22:27 +0800  

18 Dec, 2012

1 commit

• f803f0d07   rtc: add NXP PCF8523 support ... Browse Code »

  Add an RTC driver for PCF8523 chips by NXP Semiconductors. No support is
  currently provided for the alarm and interrupt functions. Only the time
  and date functionality is implemented.

  Signed-off-by: Thierry Reding
  Cc: Alessandro Zummo
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Thierry Reding

  2012-12-18 09:15:21 +0800