From e57ba268254bda25a3ddca8b7971d6ad8277e2d8 Mon Sep 17 00:00:00 2001 From: Aradhya Bhatia Date: Thu, 9 Nov 2023 00:46:52 +0530 Subject: [PATCH] arm64: dts: ti: k3-am62a7-sk: Add interrupt support for IO Expander 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 Reviewed-by: Jai Luthra Link: https://lore.kernel.org/r/20231108191652.1118155-1-a-bhatia1@ti.com Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts index 8f64ac2c7568..560dad02ef62 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -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",