linux-kernel - [PATCH v2 4/5] ARM: dts: stm32: Add I2C4 support for STM32MP157C-ED1

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Date:   Mon, 23 Apr 2018 11:48:30 +0200
From:   Pierre-Yves MORDRET <pierre-yves.mordret@...com>
To:     Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Marc Zyngier <marc.zyngier@....com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Yangbo Lu <yangbo.lu@....com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     Pierre-Yves MORDRET <pierre-yves.mordret@...com>
Subject: [PATCH v2 4/5] ARM: dts: stm32: Add I2C4 support for STM32MP157C-ED1

Add I2C4 support for STM32MP157C evaluation daughter.
Required for PMIC.

Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@...com>
---
  Version history:
     v1:
        * Initial
---
---
 arch/arm/boot/dts/stm32mp157c-ed1.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 9f90337a..490b712 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -25,6 +25,14 @@
 	};
 };
 
+&i2c4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c4_pins_a>;
+	i2c-scl-rising-time-ns = <185>;
+	i2c-scl-falling-time-ns = <20>;
+	status = "okay";
+};
+
 &uart4 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart4_pins_a>;
-- 
2.7.4