This series adds support for watchdog timer implemented on UniPhier LD11 and LD20 SoCs. This driver supports watchdog and system reset for SoCs. patch V1 http://www.spinics.net/lists/linux-watchdog/msg11782.html Changes between V2 and V1 ========================= 1. Add barrier code in uniphier_watchdog_ping() and __uniphier_watchdog_start(). When writing WDTCTRL_CLEAR to WDTCTRL register, WDTCTRL_STATUS is updated about 62.5usec(2cycle of 32kHz) later. However, if WDTCTRL_CLEAR is written before WDTCTRL_STATUS is updated, it can't reboot as SoC specification. Therefore, I added barrier code, it waits until WDTCTRL_STATUS is updated. 2. Fix issues according to review comments. * Use WDOG_STOP_ON_REBOOT instead of shutdown method of struct platform_driver. * Separate uniphier-wdt bindings documentation as a patch. * Remove delay.h and add bitops.h header file. * Use devm_watchdog_register_device(). * Remove unnecessary code. Keiji Hayashibara (3): devicetree: add UniPhier WDT devicetree bindings documentation watchdog: uniphier: add UniPhier watchdog driver arm64: dts: uniphier: add watchdog node for LD11 and LD20 .../devicetree/bindings/watchdog/uniphier-wdt.txt | 20 ++ Documentation/watchdog/watchdog-parameters.txt | 6 + arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 4 + arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 4 + drivers/watchdog/Kconfig | 11 + drivers/watchdog/Makefile | 1 + drivers/watchdog/uniphier_wdt.c | 275 +++++++++++++++++++++ 7 files changed, 321 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/uniphier-wdt.txt create mode 100644 drivers/watchdog/uniphier_wdt.c -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
