linux.git/drivers/rtc/rtc-ds1685.c, branch v5.4.63

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman

rtc: ds1685: use threaded interrupt

2019-04-16T16:03:48+00:00

Handling of extended interrupts (kickstart, wake-up, ram-clear) was
moved off to a work queue, but the interrupts aren't acknowledged
in the interrupt handler. This leads to a deadlock, if driver
is used with interrupts. To fix this we use a threaded interrupt, get rid
of the work queue and do locking with just the rtc mutex lock.

Fixes: aaaf5fbf56f1 ("rtc: add driver for DS1685 family of real time clocks")
Signed-off-by: Thomas Bogendoerfer 
Signed-off-by: Alexandre Belloni

rtc: ds1685: remove dead code

2019-04-16T16:03:46+00:00

ds1685_rtc_begin_ctrl_access/ds1685_rtc_end_ctrl_access aren't used,
so get rid of it.

Signed-off-by: Thomas Bogendoerfer 
Signed-off-by: Alexandre Belloni

rtc: ds1685: fix crash caused by referencing wrong device struct

2019-04-12T10:23:20+00:00

sysfs entries added by rtc_add_group are called with the rtc device
as argument and not the underlying device. Fixed by using the dev->parent

Fixes: cfb74916e2ec ("rtc: ds1685: use rtc_add_group")
Signed-off-by: Thomas Bogendoerfer 
Signed-off-by: Alexandre Belloni

rtc: ds1685: simplify getting .driver_data

2018-10-22T15:53:12+00:00

We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang 
Signed-off-by: Alexandre Belloni

rtc: ds1685: use rtc_add_group

2018-09-28T12:21:01+00:00

Use rtc_add_group to add the sysfs group in a race free manner.

Signed-off-by: Alexandre Belloni

rtc: ds1685: use generic nvmem

2018-09-28T12:21:01+00:00

Instead of adding a binary sysfs attribute from the driver, use the core to
register an nvmem device.

Signed-off-by: Alexandre Belloni

rtc: ds1685: drop RTC_DS1685_PROC_REGS

2018-09-28T12:21:00+00:00

/proc is not the correct ABI to display debugging info. Remove
RTC_DS1685_PROC_REGS as the driver hasn't seen any real development since
it was included.

Signed-off-by: Alexandre Belloni

rtc: ds1685: remove sysfs access to control registers

2018-06-20T10:38:14+00:00

Access to the control registers is mostly not needed and can cause runtime
issues (like missed interrupts). Remove this debugging interface.

Signed-off-by: Alexandre Belloni

rtc: ds1685: remove improper datetime access ABI

2018-06-20T10:36:04+00:00

The driver exposes an undocumented ABI to access the date and time
registers. It is not actually used by any userspace tools. Remove it.

Signed-off-by: Alexandre Belloni