[PATCH 3/4] arm64: dts: ti: k3-am62a7-sk: Add overlay for fusion 2 board

[Krzysztof Kozlowski]

On 12/02/2025 20:56, Sebastian LaVine wrote:
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 27fb3c1be732..bf6a48da0887 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -21890,6 +21890,7 @@ M:      Stuart Burtner <sburtner at d3embedded.com>
>  L:     linux-media at vger.kernel.org
>  S:     Odd Fixes
>  F:     Documentation/devicetree/bindings/media/i2c/sony,imx728.yaml
> +F:     arch/arm64/boot/dts/ti/k3-am62a7-sk-fusion-2.dtso
>  F:     drivers/media/i2c/imx728.c
> 
>  SONY MEMORYSTICK SUBSYSTEM
> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
> index f71360f14f23..fcd8d11e5678 100644
> --- a/arch/arm64/boot/dts/ti/Makefile
> +++ b/arch/arm64/boot/dts/ti/Makefile
> @@ -31,6 +31,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk-nand.dtbo
>  # Boards with AM62Ax SoC
>  dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
>  dtb-$(CONFIG_ARCH_K3) += k3-am62a7-phyboard-lyra-rdk.dtb
> +dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk-fusion-2.dtbo

I don't see the overlay being applied.

> 
>  # Boards with AM62Px SoC
>  dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk-fusion-2.dtso b/arch/arm64/boot/dts/ti/k3-am62a7-sk-fusion-2.dtso
> new file mode 100644
> index 000000000000..68e06d643bfd
> --- /dev/null
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk-fusion-2.dtso
> @@ -0,0 +1,115 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * DT Overlay for Fusion 2 (FPD-Link IV) board on SK-AM62A
> + * https://www.ti.com/tool/J7EXPAXEVM/
> + *
> + * Copyright (C) 2024 D3 Embedded - https://www.d3embedded.com
> + */
> +
> + /dts-v1/;
> + /plugin/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +
> +&{/} {
> +       clk_fusion2_25M_fixed: fixed-clock-25M {
> +               compatible = "fixed-clock";
> +               #clock-cells = <0>;
> +               clock-frequency = <25000000>;
> +       };
> +};
> +
> +&exp2 {
> +       p9-hog {
> +               /* P9 - CSI_RSTz */
> +               gpio-hog;
> +               gpios = <9 GPIO_ACTIVE_HIGH>;
> +               output-high;
> +               line-name = "CSI_RSTz";
> +       };
> +
> +       p19-hog {
> +               /* P19 -CSI_SEL2 */
> +               gpio-hog;
> +               gpios = <19 GPIO_ACTIVE_HIGH>;
> +               output-low;
> +               line-name = "CSI_SEL2";
> +       };
> +};
> +
> +&main_i2c2 {
> +       #address-cells = <1>;
> +       #size-cells = <0>;
> +       status = "okay";
> +
> +       i2c-switch at 71 {
> +               compatible = "nxp,pca9543";
> +               #address-cells = <1>;
> +               #size-cells = <0>;
> +               reg = <0x71>;

reg is always the second property. See DTS coding style.



Best regards,
Krzysztof