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arm64: dts: ti: k3-j721s2-common-proc-board: Add main_i2c4 instance

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Add dt node for main_i2c4 instance along with required pinmuxing.
Also add the gpio expander 'exp4' required by display connector.

Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Tested-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Harikrishna Shenoy <h-shenoy@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20250716060114.52122-5-j-choudhary@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Jayesh Choudhary 2025-07-16 11:31:11 +05:30 committed by Nishanth Menon
parent 19a4472e59
commit 722a128ada
1 changed files with 24 additions and 0 deletions
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24
arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
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@ -148,6 +148,13 @@ J721S2_IOPAD(0x060, PIN_INPUT_PULLUP, 13) /* (AC27) MCASP2_AXR1.I2C3_SDA */
>;
};
main_i2c4_pins_default: main-i2c4-default-pins {
pinctrl-single,pins = <
J721S2_IOPAD(0x014, PIN_INPUT_PULLUP, 8) /* (AD25) I2C4_SCL */
J721S2_IOPAD(0x010, PIN_INPUT_PULLUP, 8) /* (AF28) I2C4_SDA */
>;
};
main_i2c5_pins_default: main-i2c5-default-pins {
pinctrl-single,pins = <
J721S2_IOPAD(0x01c, PIN_INPUT, 8) /* (Y24) MCAN15_TX.I2C5_SCL */
@ -370,6 +377,23 @@ exp2: gpio@22 {
};
};
&main_i2c4 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&main_i2c4_pins_default>;
clock-frequency = <400000>;
exp4: gpio@20 {
compatible = "ti,tca6408";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "DP0_PWR_SW_EN", "DP1_PWR_SW_EN", "UB981_PDB",
"UB981_GPIO0", "UB981_GPIO1", "UB981_GPIO2",
"UB981_GPIO3", "PWR_SW_CNTL_DSI0#";
};
};
&main_i2c5 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c5_pins_default>;