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arm64: dts: ti: k3-am62a7-sk: Add interrupt support for IO Expander

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The Hot Plug Detect (HPD) signal for the HDMI display travels from the
on-board HDMI connector, through the IO Expander 1, and finally to the
main_gpio1 GPIO 23, of the SoC.

Add interrupt information for the IO Expander 1 (exp1) along with the
relevant pinmux.

Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Reviewed-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20231108191652.1118155-1-a-bhatia1@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Aradhya Bhatia 2023-11-09 00:46:52 +05:30 committed by Nishanth Menon
parent 26e0124683
commit e57ba26825
1 changed files with 12 additions and 0 deletions
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12
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
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@ -274,6 +274,12 @@
AM62AX_IOPAD(0x084, PIN_INPUT, 2) /* (L18) GPMC0_ADVn_ALE.MCASP1_AXR2 */
>;
};
main_gpio1_ioexp_intr_pins_default: main-gpio1-ioexp-intr-default-pins {
pinctrl-single,pins = <
AM62AX_IOPAD(0x01d4, PIN_INPUT, 7) /* (C15) UART0_RTSn.GPIO1_23 */
>;
};
};
&mcu_pmx0 {
@ -407,6 +413,12 @@
reg = <0x22>;
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio1>;
interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
interrupt-controller;
#interrupt-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&main_gpio1_ioexp_intr_pins_default>;
gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",
"BT_EN_SOC", "MMC1_SD_EN",