From: Alain Volmat <alain.volmat@st.com>
Date: Fri, 13 Mar 2020 11:46:29 +0000 (+0100)
Subject: ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
X-Git-Tag: v5.7-rc1~97^2~31^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8bc631b650a64ca43b3bce9ad225fbd12e051868;p=thirdparty%2Fkernel%2Flinux.git

ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1

On this board, the I2C4 bus has only a single slave (pmic) which
supports I2C Fast Mode hence setting bus frequency to 400 KHz.

Signed-off-by: Alain Volmat <alain.volmat@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
---

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index c84f14b173719..d5f3657284031 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -134,6 +134,7 @@
 	pinctrl-0 = <&i2c4_pins_a>;
 	i2c-scl-rising-time-ns = <185>;
 	i2c-scl-falling-time-ns = <20>;
+	clock-frequency = <400000>;
 	status = "okay";
 	/* spare dmas for other usage */
 	/delete-property/dmas;