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| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2024-10-25 12:58:03 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2024-11-04 11:46:33 +0300 |
| commit | 8328148ae495a8cfbd6e18fa19d439c8d73a5958 (patch) | |
| tree | 443931d14c90f63edf77de5c0a61124b2d729cb1 | |
| parent | 85d65eeb8e4c133ba3bd5d79158be52ea9b1c655 (diff) | |
| download | linux-8328148ae495a8cfbd6e18fa19d439c8d73a5958.tar.xz | |
arm64: dts: imx8mp-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>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi index e9518b7c7aa8..13e134158eef 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi @@ -478,6 +478,7 @@ 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 { @@ -670,6 +671,7 @@ 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; atmel_mxt_ts_mezzanine: touch-mezzanine@4a { compatible = "atmel,maxtouch"; @@ -691,6 +693,7 @@ 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 */ @@ -701,6 +704,7 @@ 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"; @@ -789,6 +793,7 @@ pinctrl-1 = <&pinctrl_i2c5_gpio>; scl-gpios = <&gpio3 26 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; sda-gpios = <&gpio3 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + single-master; }; /* Verdin PCIE_1 */ |