linux-kernel - [PATCH] arm64: zynqmp: Setting default i2c clock frequency to 400kHz

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Message-ID: <3034ec006c8b11e025904d4cc2524255523636f6.1686227766.git.michal.simek@amd.com>
Date:   Thu, 8 Jun 2023 14:36:10 +0200
From:   Michal Simek <michal.simek@....com>
To:     <linux-kernel@...r.kernel.org>, <monstr@...str.eu>,
        <michal.simek@...inx.com>, <git@...inx.com>
CC:     Varalaxmi Bingi <varalaxmi.bingi@....com>,
        Conor Dooley <conor+dt@...nel.org>,
        Harini Katakam <harini.katakam@....com>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Michael Grzeschik <m.grzeschik@...gutronix.de>,
        Parth Gajjar <parth.gajjar@....com>,
        "Piyush Mehta" <piyush.mehta@...inx.com>,
        Radhey Shyam Pandey <radhey.shyam.pandey@....com>,
        Rob Herring <robh+dt@...nel.org>,
        "Robert Hancock" <robert.hancock@...ian.com>,
        Tanmay Shah <tanmay.shah@....com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH] arm64: zynqmp: Setting default i2c clock frequency to 400kHz

From: Varalaxmi Bingi <varalaxmi.bingi@....com>

Setting default i2c clock frequency for ZynqMP to maximum rate of 400kHz.
Current default value is 100kHz.

Signed-off-by: Varalaxmi Bingi <varalaxmi.bingi@....com>
Signed-off-by: Michal Simek <michal.simek@....com>
---

 arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 394db49ac6cb..675b88190845 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -648,6 +648,7 @@ i2c0: i2c@...20000 {
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 17 4>;
+			clock-frequency = <400000>;
 			reg = <0x0 0xff020000 0x0 0x1000>;
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -659,6 +660,7 @@ i2c1: i2c@...30000 {
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 18 4>;
+			clock-frequency = <400000>;
 			reg = <0x0 0xff030000 0x0 0x1000>;
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
2.36.1