On Sun, Mar 17, 2024 at 06:48:50PM +0200, Laurent Pinchart wrote:
> The SB-UCM-iMX8MPLUS kit is shipped with an external DSI panel. Add a
> corresponding DT overlay.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/freescale/Makefile | 4 +
> .../imx8mp-sb-ucm-panel-kd050hdfia020.dtso | 81 +++++++++++++++++++
> 2 files changed, 85 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-sb-ucm-panel-kd050hdfia020.dtso
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 02efa97fc464..d7432ce6a7bb 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -165,6 +165,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-icore-mx8mp-edimm2.2.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-msc-sm2s-ep1.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-sb-ucm.dtb
> +
> +imx8mp-sb-ucm-panel-kd050hdfia020-dtbs := imx8mp-sb-ucm.dtb imx8mp-sb-ucm-panel-kd050hdfia020-dtbo
> +dtb-$(CONFIG_ARCH_MXC) += imx8mp-sb-ucm-panel-kd050hdfia020-dtb
On a side note, is there a way to selectively compile this dtb ? Running
$ make dtbs
will compile them all, but
$ make freescale/imx8mp-sb-ucm-panel-kd050hdfia020-dtb
complains with
make[4]: *** No rule to make target 'arch/arm64/boot/dts/freescale/imx8mp-sb-ucm-panel-kd050hdfia020.dtb'. Stop.
make[3]: *** [/home/laurent/src/iob/toradex/linux/scripts/Makefile.build:481: arch/arm64/boot/dts/freescale] Error 2
make[2]: *** [/home/laurent/src/iob/toradex/linux/Makefile:1389: freescale/imx8mp-sb-ucm-panel-kd050hdfia020.dtb] Error 2
I would like to compile it selectively, as running
$ make dtbs CHECK_DTBS=1
makes it much more time consuming to run the dtb checks.
> +
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-hdmi.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-lt6.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-mi1010ait-1cp1.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-sb-ucm-panel-kd050hdfia020.dtso b/arch/arm64/boot/dts/freescale/imx8mp-sb-ucm-panel-kd050hdfia020.dtso
> new file mode 100644
> index 000000000000..fdad943c1554
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-sb-ucm-panel-kd050hdfia020.dtso
> @@ -0,0 +1,81 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2021 CompuLab
> + *
> + * Device tree overlay for KD050HDFIA020-C020A panel connector to Compulab
> + * SB-UCM-iMX8PLUS.
> + */
> +
> +/dts-v1/;
> +/plugin/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +&dsi_backlight {
> + status = "okay";
> +};
> +
> +&i2c5 {
> + status = "okay";
> +
> + touch@5d {
> + compatible = "goodix,gt911";
> + reg = <0x5d>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_dsi_touch>;
> +
> + interrupt-parent = <&gpio4>;
> + interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
> +
> + irq-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
> + reset-gpios = <&pca9555 5 GPIO_ACTIVE_HIGH>;
> + };
> +};
> +
> +&lcdif1 {
> + status = "okay";
> +};
> +
> +&mipi_dsi {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + samsung,esc-clock-frequency = <20000000>;
> + status = "okay";
> +
> + panel@0 {
> + compatible = "startek,kd050hdfia020", "ilitek,ili9881c";
> + reg = <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_dsi_panel>;
> +
> + reset-gpio = <&pca9555 4 GPIO_ACTIVE_LOW>;
> + power-supply = <®_3v3_per>;
> +
> + backlight = <&dsi_backlight>;
> +
> + port {
> + panel_in: endpoint {
> + remote-endpoint = <&mipi_dsi_out>;
> + data-lanes = <1 2 3 4>;
> + };
> + };
> + };
> +
> + ports {
> + port@1 {
> + reg = <1>;
> +
> + mipi_dsi_out: endpoint {
> + remote-endpoint = <&panel_in>;
> + data-lanes = <1 2 3 4>;
> + lane-polarities = <0 0 0 0 0>;
> + };
> + };
> + };
> +};
> +
> +&pwm1 {
> + status = "okay";
> +};
--
Regards,
Laurent Pinchart
