From 85d65eeb8e4c133ba3bd5d79158be52ea9b1c655 Mon Sep 17 00:00:00 2001 From: Stefan Eichenberger Date: Fri, 25 Oct 2024 11:58:02 +0200 Subject: [PATCH] arm64: dts: imx8mm-verdin: add single-master property to all i2c nodes By default we expect all i2c nodes to be single-master, we do not have any module or carrier board that uses multi-master mode on any i2c controller. With this property set, we benefit from optimisations made exclusively for single-masters. Signed-off-by: Stefan Eichenberger Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi index c20c2da17524..d21ed35120f2 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi @@ -367,6 +367,7 @@ pinctrl-1 = <&pinctrl_i2c1_gpio>; scl-gpios = <&gpio5 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; sda-gpios = <&gpio5 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + single-master; status = "okay"; pca9450: pmic@25 { @@ -562,6 +563,7 @@ pinctrl-1 = <&pinctrl_i2c2_gpio>; scl-gpios = <&gpio5 16 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; sda-gpios = <&gpio5 17 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + single-master; status = "disabled"; }; @@ -575,6 +577,7 @@ pinctrl-1 = <&pinctrl_i2c3_gpio>; scl-gpios = <&gpio5 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; sda-gpios = <&gpio5 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + single-master; }; /* Verdin I2C_1 */ @@ -585,6 +588,7 @@ pinctrl-1 = <&pinctrl_i2c4_gpio>; scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + single-master; gpio_expander_21: gpio-expander@21 { compatible = "nxp,pcal6416"; -- 2.42.0