From f0abba69cb3fe3e1124013b87be832033e15c943 Mon Sep 17 00:00:00 2001 From: Shashank Maurya Date: Tue, 15 Sep 2026 10:15:08 +0530 Subject: [PATCH 1/2] FROMLIST: arm64: dts: qcom: lemans-evk: Add DSI display overlay Add a DT overlay for the Raspberry Pi 7" DSI touchscreen panel on Lemans EVK, using mdss0_dsi0 with 2 data lanes and the panel MCU on I2C1. Link: https://lore.kernel.org/all/20260907-rpi_dts_overlay-v2-2-a4989322ce00@oss.qualcomm.com/ Signed-off-by: Shashank Maurya --- arch/arm64/boot/dts/qcom/Makefile | 3 + .../lemans-evk-raspberrypi-dsi-7inch.dtso | 83 +++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 arch/arm64/boot/dts/qcom/lemans-evk-raspberrypi-dsi-7inch.dtso diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile index 7c3daa5703471..00ec63b62817b 100644 --- a/arch/arm64/boot/dts/qcom/Makefile +++ b/arch/arm64/boot/dts/qcom/Makefile @@ -63,6 +63,9 @@ lemans-evk-ifp-mezzanine-dtbs := lemans-evk.dtb lemans-evk-ifp-mezzanine.dtbo lemans-evk-lvds-boe,dv215fhm-r01-dtbs := lemans-evk.dtb lemans-evk-ifp-mezzanine.dtbo lemans-evk-lvds-boe,dv215fhm-r01.dtbo dtb-$(CONFIG_ARCH_QCOM) += lemans-evk-lvds-boe,dv215fhm-r01.dtb +lemans-evk-raspberrypi-dsi-7inch-dtbs := lemans-evk.dtb lemans-evk-raspberrypi-dsi-7inch.dtbo +dtb-$(CONFIG_ARCH_QCOM) += lemans-evk-raspberrypi-dsi-7inch.dtb + dtb-$(CONFIG_ARCH_QCOM) += lemans-evk-ifp-mezzanine.dtb dtb-$(CONFIG_ARCH_QCOM) += lemans-evk-ifp-mezzanine.dtbo dtb-$(CONFIG_ARCH_QCOM) += monaco-arduino-monza.dtb diff --git a/arch/arm64/boot/dts/qcom/lemans-evk-raspberrypi-dsi-7inch.dtso b/arch/arm64/boot/dts/qcom/lemans-evk-raspberrypi-dsi-7inch.dtso new file mode 100644 index 0000000000000..14743b3c38637 --- /dev/null +++ b/arch/arm64/boot/dts/qcom/lemans-evk-raspberrypi-dsi-7inch.dtso @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. + */ +/dts-v1/; +/plugin/; + +#include + +&{/} { + display_bl: backlight { + compatible = "pwm-backlight"; + power-supply = <®_dsi_touch>; + pwms = <®_backlight 0 255 0>; + }; + + reg_dsi_touch: regulator-touch { + compatible = "regulator-fixed"; + regulator-name = "rpi-dsi-touch"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&expander3 1 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-boot-on; + regulator-always-on; + }; +}; + +&i2c1 { + qcom,load-firmware; + qcom,xfer-mode = <1>; + + status = "okay"; + + #address-cells = <1>; + #size-cells = <0>; + + reg_backlight: reg_backlight@45 { + compatible = "raspberrypi,touchscreen-panel-regulator-v2"; + reg = <0x45>; + + vcc-supply = <®_dsi_touch>; + gpio-controller; + #gpio-cells = <2>; + #pwm-cells = <3>; + }; +}; + +&mdss0_dsi0 { + vdda-supply = <&vreg_l1c>; + + status = "okay"; + + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "raspberrypi,dsi-7inch"; + reg = <0>; + + reset-gpios = <®_backlight 0 GPIO_ACTIVE_LOW>; + power-supply = <®_dsi_touch>; + iovcc-supply = <®_dsi_touch>; + backlight = <&display_bl>; + + port { + panel0_in: endpoint { + remote-endpoint = <&mdss0_dsi0_out>; + }; + }; + }; +}; + +&mdss0_dsi0_out { + remote-endpoint = <&panel0_in>; + data-lanes = <0 1>; +}; + +&mdss0_dsi0_phy { + vdds-supply = <&vreg_l4a>; + + status = "okay"; +}; From 1db8ba8fe62472b22852b97fa8fcfe1f79fd3ed0 Mon Sep 17 00:00:00 2001 From: Shashank Maurya Date: Tue, 15 Sep 2026 10:16:59 +0530 Subject: [PATCH 2/2] FROMLIST: arm64: dts: qcom: monaco-evk: Add DSI display overlay Add a DT overlay for the Raspberry Pi 7" DSI touchscreen panel on Monaco EVK, using mdss0_dsi0 with 2 data lanes and the panel MCU on I2C8. Link: https://lore.kernel.org/all/20260907-rpi_dts_overlay-v2-1-a4989322ce00@oss.qualcomm.com/ Signed-off-by: Shashank Maurya --- arch/arm64/boot/dts/qcom/Makefile | 3 + .../monaco-evk-raspberrypi-dsi-7inch.dtso | 82 +++++++++++++++++++ 2 files changed, 85 insertions(+) create mode 100644 arch/arm64/boot/dts/qcom/monaco-evk-raspberrypi-dsi-7inch.dtso diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile index 00ec63b62817b..c104f19cef4de 100644 --- a/arch/arm64/boot/dts/qcom/Makefile +++ b/arch/arm64/boot/dts/qcom/Makefile @@ -91,6 +91,9 @@ dtb-$(CONFIG_ARCH_QCOM) += monaco-evk-ifp-mezzanine.dtbo monaco-evk-lvds-boe,dv215fhm-r01-dtbs := monaco-evk.dtb monaco-evk-ifp-mezzanine.dtbo monaco-evk-lvds-boe,dv215fhm-r01.dtbo dtb-$(CONFIG_ARCH_QCOM) += monaco-evk-lvds-boe,dv215fhm-r01.dtb +monaco-evk-raspberrypi-dsi-7inch-dtbs := monaco-evk.dtb monaco-evk-raspberrypi-dsi-7inch.dtbo +dtb-$(CONFIG_ARCH_QCOM) += monaco-evk-raspberrypi-dsi-7inch.dtb + monaco-evk-sd-card-dtbs := monaco-evk.dtb monaco-evk-sd-card.dtbo dtb-$(CONFIG_ARCH_QCOM) += monaco-evk-sd-card.dtb diff --git a/arch/arm64/boot/dts/qcom/monaco-evk-raspberrypi-dsi-7inch.dtso b/arch/arm64/boot/dts/qcom/monaco-evk-raspberrypi-dsi-7inch.dtso new file mode 100644 index 0000000000000..f27b5a4a60934 --- /dev/null +++ b/arch/arm64/boot/dts/qcom/monaco-evk-raspberrypi-dsi-7inch.dtso @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. + */ +/dts-v1/; +/plugin/; + +#include + +&{/} { + display_bl: backlight { + compatible = "pwm-backlight"; + power-supply = <®_dsi_touch>; + pwms = <®_backlight 0 50000 0>; + }; + + reg_dsi_touch: regulator-touch { + compatible = "regulator-fixed"; + regulator-name = "rpi-touch"; + regulator-min-microvolt = <5500000>; + regulator-max-microvolt = <5500000>; + gpio = <&expander3 5 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-always-on; + }; +}; + +&i2c8 { + qcom,load-firmware; + qcom,xfer-mode = <1>; + + status = "okay"; + + #address-cells = <1>; + #size-cells = <0>; + + reg_backlight: reg_backlight@45 { + compatible = "raspberrypi,touchscreen-panel-regulator-v2"; + reg = <0x45>; + + vcc-supply = <®_dsi_touch>; + gpio-controller; + #gpio-cells = <2>; + #pwm-cells = <3>; + }; +}; + +&mdss_dsi0 { + vdda-supply = <&vreg_l1c>; + + status = "okay"; + + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "raspberrypi,dsi-7inch"; + reg = <0>; + + reset-gpios = <®_backlight 0 GPIO_ACTIVE_LOW>; + power-supply = <®_dsi_touch>; + iovcc-supply = <®_dsi_touch>; + backlight = <&display_bl>; + + port { + panel0_in: endpoint { + remote-endpoint = <&mdss_dsi0_out>; + }; + }; + }; +}; + +&mdss_dsi0_out { + remote-endpoint = <&panel0_in>; + data-lanes = <0 1>; +}; + +&mdss_dsi0_phy { + vdds-supply = <&vreg_l4a>; + + status = "okay"; +};