On Oct 30, 2013, at 2:01 AM, Leela Krishna Amudala wrote:
> The syscon regmap interface is used to configure AUTOMATIC_WDT_RESET_DISABLE
> and MASK_WDT_RESET_REQUEST registers of PMU to mask/unmask enable/disable of
> watchdog in probe and s2r scenarios.
>
> Signed-off-by: Leela Krishna Amudala <[email protected]>
> ---
> .../devicetree/bindings/watchdog/samsung-wdt.txt | 13 ++-
> drivers/watchdog/s3c2410_wdt.c | 114 ++++++++++++++++++--
> 2 files changed, 118 insertions(+), 9 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
> b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
> index 2aa486c..c46c7ce 100644
> --- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
> +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
> @@ -5,10 +5,21 @@ after a preset amount of time during which the WDT reset
> event has not
> occurred.
>
> Required properties:
> -- compatible : should be "samsung,s3c2410-wdt"
> +- compatible : should be "samsung,s3c2410-wdt" or "samsung,s3c5250-wdt" or
> "samsung,s3c5420-wdt"
> - reg : base physical address of the controller and length of memory mapped
> region.
> - interrupts : interrupt number to the cpu.
> +- samsung,pmusysreg : reference node to pmu sysreg (required only in case of
> Exynos5250 and 5420)
Rather than saying required only on Exynos5250 and 5420, how about saying
required only in case of compatible being "samsung,s3c5250-wdt" or
"samsung,s3c5420-wdt"
>
> Optional properties:
> - timeout-sec : contains the watchdog timeout in seconds.
> +
> +watchdog@101D0000 {
> + compatible = "samsung,s3c5250-wdt";
> + reg = <0x101D0000 0x100>;
> + interrupts = <0 42 0>;
> + clocks = <&clock 336>;
> + clock-names = "watchdog";
> + samsung,sysreg = <&pmu_sys_reg>;
> + status = "okay";
> +};
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