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 <stefan.eichenberger@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
index c20c2da17524e18d9d7becd0a4c07c7ff85c3268..d21ed35120f277387484dc68cef9f0aa45de4a01 100644 (file)
--- 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";