From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761963AbcLBONg (ORCPT ); Fri, 2 Dec 2016 09:13:36 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:16895 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1761927AbcLBONd (ORCPT ); Fri, 2 Dec 2016 09:13:33 -0500 From: Amelie Delaunay To: , , , , , , CC: , , , , , Subject: [PATCH 2/8] dt-bindings: document the STM32 RTC bindings Date: Fri, 2 Dec 2016 15:09:55 +0100 Message-ID: <1480687801-19525-4-git-send-email-amelie.delaunay@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1480687801-19525-2-git-send-email-amelie.delaunay@st.com> References: <1480687801-19525-2-git-send-email-amelie.delaunay@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.201.23.160] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-12-02_10:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds documentation of device tree bindings for the STM32 RTC. Signed-off-by: Amelie Delaunay --- .../devicetree/bindings/rtc/st,stm32-rtc.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt new file mode 100644 index 0000000..4578838 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt @@ -0,0 +1,31 @@ +STM32 Real Time Clock + +Required properties: +- compatible: "st,stm32-rtc". +- reg: address range of rtc register set. +- clocks: reference to the clock entry ck_rtc. +- clock-names: name of the clock used. Should be "ck_rtc". +- interrupt-parent: phandle for the interrupt controller. +- interrupts: rtc alarm interrupt. +- interrupt-names: rtc alarm interrupt name, should be "alarm". +- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain + (RTC registers) write protection. + +Optional properties (to override default ck_rtc parent clock): +- assigned-clocks: reference to the ck_rtc clock entry. +- assigned-clock-parents: phandle of the new parent clock of ck_rtc. + +Example: + + rtc: rtc@40002800 { + compatible = "st,stm32-rtc"; + reg = <0x40002800 0x400>; + clocks = <&rcc 1 CLK_RTC>; + clock-names = "ck_rtc"; + assigned-clocks = <&rcc 1 CLK_RTC>; + assigned-clock-parents = <&rcc 1 CLK_LSE>; + interrupt-parent = <&exti>; + interrupts = <17 1>; + interrupt-names = "alarm"; + st,syscfg = <&pwrcfg>; + }; -- 1.9.1