From: Amelie Delaunay <amelie.delaunay@st.com>
To: <a.zummo@towertech.it>, <alexandre.belloni@free-electrons.com>,
<robh+dt@kernel.org>, <mark.rutland@arm.com>,
<mcoquelin.stm32@gmail.com>, <alexandre.torgue@st.com>,
<linux@armlinux.org.uk>
Cc: <rtc-linux@googlegroups.com>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <gabriel.fernandez@st.com>,
<amelie.delaunay@st.com>
Subject: [PATCH 2/8] dt-bindings: document the STM32 RTC bindings
Date: Fri, 2 Dec 2016 15:09:55 +0100 [thread overview]
Message-ID: <1480687801-19525-4-git-send-email-amelie.delaunay@st.com> (raw)
In-Reply-To: <1480687801-19525-2-git-send-email-amelie.delaunay@st.com>
This patch adds documentation of device tree bindings for the STM32 RTC.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
---
.../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
next prev parent reply other threads:[~2016-12-02 14:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-02 14:09 [PATCH 0/8] Add support for STM32 RTC Amelie Delaunay
2016-12-02 14:09 ` [PATCH 1/8] ARM: dts: stm32: set HSE_RTC clock frequency to 1 MHz on stm32f429 Amelie Delaunay
2016-12-02 14:09 ` Amelie Delaunay [this message]
2016-12-05 10:06 ` [PATCH 2/8] dt-bindings: document the STM32 RTC bindings Alexandre Belloni
2016-12-05 10:14 ` Amelie DELAUNAY
2016-12-02 14:09 ` [PATCH 3/8] rtc: add STM32 RTC driver Amelie Delaunay
2016-12-02 17:56 ` Mathieu Poirier
2016-12-05 9:43 ` Amelie DELAUNAY
2016-12-05 16:32 ` Mathieu Poirier
2016-12-07 10:16 ` Amelie DELAUNAY
2016-12-07 18:37 ` Alexandre Belloni
2016-12-12 9:59 ` Amelie DELAUNAY
2016-12-02 18:05 ` Mathieu Poirier
2016-12-05 9:45 ` Amelie DELAUNAY
2016-12-07 19:08 ` Alexandre Belloni
2016-12-02 14:09 ` [PATCH 4/8] ARM: dts: stm32: Add STM32 RTC support for STM32F429 MCU Amelie Delaunay
2016-12-02 14:09 ` [PATCH 5/8] ARM: dts: stm32: enable RTC on stm32f429-disco Amelie Delaunay
2016-12-02 14:09 ` [PATCH 6/8] ARM: dts: stm32: enable RTC on stm32f469-disco Amelie Delaunay
2016-12-02 14:10 ` [PATCH 7/8] ARM: dts: stm32: enable RTC on stm32429i-eval Amelie Delaunay
2016-12-02 14:10 ` [PATCH 8/8] ARM: configs: stm32: Add STM32 RTC support in STM32 defconfig Amelie Delaunay
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