Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755661AbbDIOtB (ORCPT ); Thu, 9 Apr 2015 10:49:01 -0400 Received: from mail-wg0-f54.google.com ([74.125.82.54]:33234 "EHLO mail-wg0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755491AbbDIOru (ORCPT ); Thu, 9 Apr 2015 10:47:50 -0400 From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: lee.jones@linaro.org, kernel@stlinux.com, wim@iguana.be, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux@roeck-us.net, a.zummo@towertech.it, david.paris@st.com Subject: [PATCH v7 5/9] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device Date: Thu, 9 Apr 2015 15:47:30 +0100 Message-Id: <1428590854-14095-6-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1428590854-14095-1-git-send-email-lee.jones@linaro.org> References: <1428590854-14095-1-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2209 Lines: 62 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..388c88a --- /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,stih407-lpc"; + reg = <0xfde05000 0x1000>; + clocks = <&clk_s_d3_flexgen CLK_LPC_0>; + st,syscfg = <&syscfg_core>; + timeout-sec = <120>; + st,lpc-mode = ; + st,warm-reset; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/