linux-kernel - [PATCHv3 1/8] ARM: dts: stm32: set HSE_RTC clock frequency to 1 MHz on stm32f429

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Date:   Thu, 5 Jan 2017 14:43:22 +0100
From:   Amelie Delaunay <amelie.delaunay@...com>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Russell King <linux@...linux.org.uk>
CC:     <rtc-linux@...glegroups.com>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Gabriel Fernandez <gabriel.fernandez@...com>,
        Amelie Delaunay <amelie.delaunay@...com>
Subject: [PATCHv3 1/8] ARM: dts: stm32: set HSE_RTC clock frequency to 1 MHz on stm32f429

This patch set HSE_RTC clock frequency to 1 MHz, as the clock supplied to
the RTC must be 1 MHz.

Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>
---
 arch/arm/boot/dts/stm32f429.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index b077f99..d195ccf 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -371,6 +371,8 @@
 			reg = <0x40023800 0x400>;
 			clocks = <&clk_hse>, <&clk_i2s_ckin>;
 			st,syscfg = <&pwrcfg>;
+			assigned-clocks = <&rcc 1 CLK_HSE_RTC>;
+			assigned-clock-rates = <1000000>;
 		};
 
 		dma1: dma-controller@...26000 {
-- 
1.9.1