diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2023-09-05 10:31:18 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2023-09-13 11:10:29 +0200 |
| commit | 45b24b4fabd79c3dc473218c8518e6ad89e5a4dd (patch) | |
| tree | b0352f19836a9e05e6d6dbe04da5cda41083ef46 | |
| parent | a698db0dfb1a6d57f4698be898e1f9eff20a4d1b (diff) | |
verdin-imx8mp: add dsi-to-hdmi overlay
Add Verdin DSI to HDMI Adapter (dsi-to-hdmi) with Lontium LT8912B MIPI
DSI to HDMI bridge chip device tree overlay compatible with mainline/
master/upstream v6.5 Linux kernel and device trees.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
| -rw-r--r-- | overlays/Makefile | 1 | ||||
| -rw-r--r-- | overlays/verdin-imx8mp_dsi-to-hdmi_overlay.dts | 109 |
2 files changed, 110 insertions, 0 deletions
diff --git a/overlays/Makefile b/overlays/Makefile index 2ebd04f..94ddfcc 100644 --- a/overlays/Makefile +++ b/overlays/Makefile @@ -57,6 +57,7 @@ dtb-y += verdin-imx8mm_dsi-to-lvds_panel-cap-touch-10inch-lvds_overlay.dtbo dtb-y += verdin-imx8mm_hmp_overlay.dtbo dtb-y += verdin-imx8mm_nau8822-btl_overlay.dtbo dtb-y += verdin-imx8mm_spidev_overlay.dtbo +dtb-y += verdin-imx8mp_dsi-to-hdmi_overlay.dtbo dtb-y += verdin-imx8mp_dsi-to-lvds_panel-cap-touch-10inch-lvds_overlay.dtbo dtb-y += verdin-imx8mp_nau8822-btl_overlay.dtbo dtb-y += verdin-imx8mp_spidev_overlay.dtbo diff --git a/overlays/verdin-imx8mp_dsi-to-hdmi_overlay.dts b/overlays/verdin-imx8mp_dsi-to-hdmi_overlay.dts new file mode 100644 index 0000000..5cece29 --- /dev/null +++ b/overlays/verdin-imx8mp_dsi-to-hdmi_overlay.dts @@ -0,0 +1,109 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright 2023 Toradex + */ + +// Verdin DSI to HDMI Adapter orderable at Toradex. + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + compatible = "toradex,verdin-imx8mp"; +}; + +&{/} { + hdmi-connector { + compatible = "hdmi-connector"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm_3_dsi_hpd_gpio>; + ddc-i2c-bus = <&i2c2>; + /* Verdin PWM_3_DSI/PWM_3_DSI_LVDS (SODIMM 19) */ + hpd-gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>; + label = "hdmi"; + type = "a"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <<8912_1_out>; + }; + }; + }; +}; + +/* Verdin I2C_2_DSI */ +&i2c2 { + status = "okay"; +}; + +/* Verdin I2C_1 */ +&i2c4 { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + hdmi@48 { + compatible = "lontium,lt8912b"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_gpio_10_dsi>; + reg = <0x48>; + /* Verdin GPIO_9_DSI (LT8912 INT, SODIMM 17, unused) */ + /* Verdin GPIO_10_DSI (SODIMM 21) */ + reset-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>; + status = "okay"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + lt8912_1_in: endpoint { + data-lanes = <1 2 3 4>; + remote-endpoint = <&mipi_dsi_bridge1_out>; + }; + }; + + port@1 { + reg = <1>; + + lt8912_1_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; +}; + +/* LCDIF to MIPI-DSI */ +&lcdif1 { + status = "okay"; +}; + +&mipi_dsi { + samsung,esc-clock-frequency = <16000000>; + status = "okay"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@1 { + reg = <1>; + + mipi_dsi_bridge1_out: endpoint { + attach-bridge; + remote-endpoint = <<8912_1_in>; + }; + }; + }; +}; + +&pwm3 { + /* PWM 3 conflicts with the HPD signal from the adapter */ + status = "disabled"; +}; |