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SubjectRe: [PATCH v6 5/9] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device
On 03/24/2015 02:25 AM, Lee Jones wrote:
> On current ST platforms the LPC controls a number of functions including
> Watchdog and Real Time Clock. This patch provides the bindings used to
> configure LPC in Watchdog mode.
>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
> .../devicetree/bindings/watchdog/st_lpc_wdt.txt | 38 ++++++++++++++++++++++
> 1 file changed, 38 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt
>
> diff --git a/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt b/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt
> new file mode 100644
> index 0000000..1bdf023
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt
> @@ -0,0 +1,38 @@
> +STMicroelectronics Low Power Controller (LPC) - Watchdog
> +========================================================
> +
> +LPC currently supports Watchdog OR Real Time Clock functionality.
> +
> +[See: ../rtc/rtc-st-lpc.txt for RTC options]
> +
> +Required properties
> +
> +- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc"
> + "st,stih415-lpc" "st,stid127-lpc"
> +- reg : LPC registers base address + size
> +- interrupts : LPC interrupt line number and associated flags
> +- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt)
> +- st,lpc-mode : The LPC can run either one of two modes ST_LPC_MODE_RTC [0] or
> + ST_LPC_MODE_WDT [1]. One (and only one) mode must be
> + selected.
> +
> +Required properties [watchdog mode]
> +
> +- st,syscfg : Phandle to syscfg node used to enable watchdog and configure
> + CPU reset type.
> +- timeout-sec : Watchdog timeout in seconds
> +
> +Optional properties [watchdog mode]
> +
> +- st,warm-reset : If present reset type will be 'warm' - if not it will be cold
> +
> +Example:
> + lpc@fde05000 {
> + compatible = "st,stih416-lpc-watchdog";

Hi Lee,

Just noticed: That doesn't match the above description, nor the match statement
in the drivers.

Guenter


> + reg = <0xfde05000 0x1000>;
> + clocks = <&clk_s_d3_flexgen CLK_LPC_0>;
> + st,syscfg = <&syscfg_core>;
> + timeout-sec = <120>;
> + st,lpc-mode = <ST_LPC_MODE_WDT>;
> + st,warm-reset;
> + };
>



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