From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752589AbbCXJ0m (ORCPT ); Tue, 24 Mar 2015 05:26:42 -0400 Received: from mail-wi0-f173.google.com ([209.85.212.173]:35974 "EHLO mail-wi0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752346AbbCXJ0B (ORCPT ); Tue, 24 Mar 2015 05:26:01 -0400 From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, rtc-linux@googlegroups.com, wim@iguana.be, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux@roeck-us.net, david.paris@st.com, a.zummo@towertech.it Cc: lee.jones@linaro.org, kernel@stlinux.com Subject: [PATCH v6 7/9] rtc: bindings: Provide ST bindings for ST's LPC RTC device Date: Tue, 24 Mar 2015 09:25:38 +0000 Message-Id: <1427189140-1935-8-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1427189140-1935-1-git-send-email-lee.jones@linaro.org> References: <1427189140-1935-1-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 RTC mode. Signed-off-by: Lee Jones --- .../devicetree/bindings/rtc/rtc-st-lpc.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt diff --git a/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt b/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt new file mode 100644 index 0000000..aaf9855 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt @@ -0,0 +1,25 @@ +STMicroelectronics Low Power Controller (LPC) - RTC +=================================================== + +LPC currently supports Watchdog OR Real Time Clock functionality. + +[See: ../watchdog/st_lpc_wdt.txt for Watchdog 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. + +Example: + lpc@fde05000 { + compatible = "st,stih416-lpc-watchdog"; + reg = <0xfde05000 0x1000>; + clocks = <&clk_s_d3_flexgen CLK_LPC_0>; + st,lpc-mode = ; + }; -- 1.9.1