[PATCH v2 0/8] watchdog: rtc: New driver(s) for ST's LPC IP

Lee Jones lee.jones at linaro.org
Wed Dec 17 08:45:19 PST 2014

ST's Low Power Controller (LPC) controls two devices; watchdog and RTC.
Only one of the devices can be used at any one time, which is enforced
by a Device Tree property.

This driver set provides everything you need to choose one (and only
one) of the LPC devices to run per I/P block, of which there are two
on the enabled STiH407 h/w.

v1 => v2:
  Suggestions fixed up:
    Arnd: No need for a separate MFD driver.  If you return -ENODEV
          really_probe() will continue looking for an suitable alternative.
    David: Power Management improvements.

    Guenter: Use Watchdog Framework's maximum timeout checker and only request
             clock rate once during .probe(), as the clock rate will not

Lee Jones (8):
  mfd: dt-bindings: Provide human readable defines for LPC mode choosing
  ARM: multi_v7_defconfig: Enable support for ST's LPC Watchdog
  ARM: multi_v7_defconfig: Enable support for ST's LPC RTC
  ARM: STi: DT: STiH407: Add Device Tree node for the LPC
  watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device
  watchdog: st_wdt: Add new driver for ST's LPC Watchdog
  rtc: bindings: Provide ST bindings for ST's LPC RTC device
  rtc: st: add new driver for ST's LPC RTC

 .../devicetree/bindings/rtc/rtc-st-lpc.txt         |  25 ++
 .../devicetree/bindings/watchdog/st_lpc_wdt.txt    |  38 +++
 arch/arm/boot/dts/stih407.dtsi                     |  20 ++
 arch/arm/configs/multi_v7_defconfig                |   2 +
 drivers/rtc/Kconfig                                |  13 +
 drivers/rtc/Makefile                               |   1 +
 drivers/rtc/rtc-st-lpc.c                           | 354 +++++++++++++++++++++
 drivers/watchdog/Kconfig                           |  13 +
 drivers/watchdog/Makefile                          |   1 +
 drivers/watchdog/st_wdt.c                          | 329 +++++++++++++++++++
 include/dt-bindings/mfd/st-lpc.h                   |  15 +
 11 files changed, 811 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt
 create mode 100644 drivers/rtc/rtc-st-lpc.c
 create mode 100644 drivers/watchdog/st_wdt.c
 create mode 100644 include/dt-bindings/mfd/st-lpc.h


More information about the linux-arm-kernel mailing list