From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Subject: Re: [PATCH v6 5/9] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device Date: Wed, 25 Mar 2015 06:27:58 -0700 Message-ID: <5512B7DE.60108@roeck-us.net> References: <1427189140-1935-1-git-send-email-lee.jones@linaro.org> <1427189140-1935-6-git-send-email-lee.jones@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1427189140-1935-6-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: linux-watchdog-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Lee Jones , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, wim-IQzOog9fTRqzQB+pC5nmwQ@public.gmane.org, linux-watchdog-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, david.paris-qxv4g6HH51o@public.gmane.org, a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org Cc: kernel-F5mvAk5X5gdBDgjK7y7TUQ@public.gmane.org List-Id: devicetree@vger.kernel.org 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 > --- > .../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,warm-reset; > + }; > -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html