[PATCH v3 0/2] rtc: add new Amlogic Virtual Wake RTC

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Kevin Hilman <khilman@xxxxxxxxxxxx>

Add a new driver for the virtual wake RTC on Amlogic SoCs.

The RTC is virtual from the Linux side because it's a hardware timer
managed by firmware on the secure co-processor (SCP.)  The interface
is 1 register where a wakeup time (in seconds) is written.  The SCP then
uses this value to program an always-on timer.

Changes since v2:
- switch to devm_platform_ioremap_resource()
- switch to devm_rtc_allocate_device() and rtc_register_device()

Changes since v1:
- add MAINTAINERS entry
- add nop ->alarm_irq_enable() (workaround for RTC core
  limitation pointed out by Alexandre Belloni)
- remove unused ->read_alarm()
- fix statics
- move resume to dev_pm_ops
- add suspend hook
- don't calculate (or write) the alarm timer value until suspend time

Changes since Neil's original version
- move from do_gettimeofday() to ktime_get()


Kevin Hilman (1):
  dt-bindings: rtc: new binding for Amlogic VRTC

Neil Armstrong (1):
  rtc: Add Amlogic Virtual Wake RTC

 .../bindings/rtc/rtc-meson-vrtc.txt           |  22 +++
 MAINTAINERS                                   |   1 +
 drivers/rtc/Kconfig                           |  11 ++
 drivers/rtc/Makefile                          |   1 +
 drivers/rtc/rtc-meson-vrtc.c                  | 156 ++++++++++++++++++
 5 files changed, 191 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt
 create mode 100644 drivers/rtc/rtc-meson-vrtc.c

-- 
2.22.0




[Index of Archives]     [Linux Sound]     [ALSA Users]     [ALSA Devel]     [Linux Audio Users]     [Linux Media]     [Kernel]     [Gimp]     [Yosemite News]     [Linux Media]

  Powered by Linux