linux-kernel - [PATCH 10/10] arm64: dts: imx8mp-skov: increase I2C clock frequency for RTC

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Message-Id: <20241219-skov-dt-updates-v1-10-38bf80dc22df@pengutronix.de>
Date: Thu, 19 Dec 2024 08:25:34 +0100
From: Ahmad Fatoum <a.fatoum@...gutronix.de>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Oleksij Rempel <o.rempel@...gutronix.de>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 kernel@...gutronix.de, Ahmad Fatoum <a.fatoum@...gutronix.de>
Subject: [PATCH 10/10] arm64: dts: imx8mp-skov: increase I2C clock
 frequency for RTC

From: Oleksij Rempel <o.rempel@...gutronix.de>

The NXP PCF85063TP RTC we use is capable of up to 400 kHz of SCL clock
frequency, so let's make use of this instead of the 100 kHz bus frequency
we are currently using.

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
---
 arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
index a683f46fcbab..ec7857db7bf0 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi
@@ -333,7 +333,7 @@ reg_nvcc_sd2: LDO5 {
 };
 
 &i2c3 {
-	clock-frequency = <100000>;
+	clock-frequency = <400000>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_i2c3>;
 	status = "okay";

-- 
2.39.5