Hi Aradhya,
On Nov 09, 2023 at 00:46:52 +0530, Aradhya Bhatia wrote:
> 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 line #23, of the SoC.
>
> Add interrupt information for the IO Expander 1 (exp1).
> Also add pinmux info of main gpio 1, line #23.
>
> Signed-off-by: Aradhya Bhatia <[email protected]>
Reviewed-by: Jai Luthra <[email protected]>
> ---
>
> Notes:
>
> - HDMI display on AM62A7 is not in the mainline yet. All the patches,
> including this one, required to enable HDMI display and HPD on
> AM62A7 SK-EVM, can be found on my github fork in the branch
> "next_am62a-v3"[0].
>
> [0]: https://github.com/aradhya07/linux-ab/tree/next_am62a-v3
>
> 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(0x08c, PIN_OUTPUT, 2) /* (K19) GPMC0_WEn.MCASP1_AXR0 */
> 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 @@ exp1: gpio@22 {
> 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",
>
> base-commit: 2220f68f4504aa1ccce0fac721ccdb301e9da32f
> --
> 2.42.0
>
--
Thanks,
Jai
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