| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20251028061636.724667-2-tessolveupstream@gmail.com>
Date: Tue, 28 Oct 2025 11:46:36 +0530
From: Sudarshan Shetty <tessolveupstream@...il.com>
To: andersson@...nel.org,
konradybcio@...nel.org
Cc: robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Sudarshan Shetty <tessolveupstream@...il.com>
Subject: [PATCH v1 1/1] arm64: dts: qcom: talos-evk: Add support for dual-channel LVDS panel
This patch introduces a new device tree for the QCS615 Talos
EVK platform with dual-channel LVDS display support.
The new DTS file (`talos-evk-lvds.dts`) is based on the existing
`talos-evk.dts` and extends it to enable a dual-channel LVDS display
configuration using the TI SN65DSI84 DSI-to-LVDS bridge.
where channel-A carries odd pixel and channel-B carries even pixel
on the QCS615 talos evk platform.
Signed-off-by: Sudarshan Shetty <tessolveupstream@...il.com>
---
arch/arm64/boot/dts/qcom/Makefile | 1 +
arch/arm64/boot/dts/qcom/talos-evk-lvds.dts | 128 ++++++++++++++++++++
2 files changed, 129 insertions(+)
create mode 100644 arch/arm64/boot/dts/qcom/talos-evk-lvds.dts
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index d5a3dd98137d..6e7b04e67287 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -307,6 +307,7 @@ dtb-$(CONFIG_ARCH_QCOM) += sm8750-mtp.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm8750-qrd.dtb
dtb-$(CONFIG_ARCH_QCOM) += talos-evk.dtb
dtb-$(CONFIG_ARCH_QCOM) += talos-evk-dsi.dtb
+dtb-$(CONFIG_ARCH_QCOM) += talos-evk-lvds.dtb
x1e001de-devkit-el2-dtbs := x1e001de-devkit.dtb x1-el2.dtbo
dtb-$(CONFIG_ARCH_QCOM) += x1e001de-devkit.dtb x1e001de-devkit-el2.dtb
x1e78100-lenovo-thinkpad-t14s-el2-dtbs := x1e78100-lenovo-thinkpad-t14s.dtb x1-el2.dtbo
diff --git a/arch/arm64/boot/dts/qcom/talos-evk-lvds.dts b/arch/arm64/boot/dts/qcom/talos-evk-lvds.dts
new file mode 100644
index 000000000000..7ba4ab96ada6
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/talos-evk-lvds.dts
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+/dts-v1/;
+#include "talos-evk.dts"
+
+/ {
+
+ backlight: backlight {
+ compatible = "gpio-backlight";
+ gpios = <&tlmm 115 GPIO_ACTIVE_HIGH>;
+ default-on;
+ };
+
+ lcd0_pwm_en {
+ compatible = "pwm-gpio";
+ gpios = <&tlmm 59 GPIO_ACTIVE_HIGH>;
+ pinctrl-0 = <&lcd0_bklt_pwm>;
+ pinctrl-names = "default";
+ #pwm-cells = <3>;
+ };
+
+ panel-lvds {
+ compatible = "auo,g133han01";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* LVDS A (Odd pixels) */
+ port@0 {
+ reg = <0>;
+ dual-lvds-odd-pixels;
+
+ lvds_panel_out_a: endpoint {
+ remote-endpoint = <&sn65dsi84_out_a>;
+ };
+ };
+
+ /* LVDS B (Even pixels) */
+ port@1 {
+ reg = <1>;
+ dual-lvds-even-pixels;
+
+ lvds_panel_out_b: endpoint {
+ remote-endpoint = <&sn65dsi84_out_b>;
+ };
+ };
+ };
+ };
+};
+
+&adv7535 {
+ status = "disabled";
+};
+
+&i2c1 {
+ clock-frequency = <400000>;
+
+ status = "okay";
+
+ sn65dsi84: sn65dsi84@2c {
+ compatible = "ti,sn65dsi84";
+ reg = <0x2c>;
+ enable-gpios = <&tlmm 42 GPIO_ACTIVE_HIGH>;
+ ti,dsi-lanes = <4>;
+ ti,lvds-format = "jeida-24";
+ ti,lvds-bpp = <24>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ sn65dsi84_in: endpoint {
+ data-lanes = <0 1 2 3>;
+ remote-endpoint = <&mdss_dsi0_out>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ sn65dsi84_out_a: endpoint {
+ data-lanes = <0 1 2 3>;
+ remote-endpoint = <&lvds_panel_out_a>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+
+ sn65dsi84_out_b: endpoint {
+ data-lanes = <0 1 2 3>;
+ remote-endpoint = <&lvds_panel_out_b>;
+ };
+ };
+ };
+ };
+};
+
+&mdss_dsi0 {
+ vdda-supply = <&vreg_l11a>;
+
+ status = "okay";
+};
+
+&mdss_dsi0_out {
+ remote-endpoint = <&sn65dsi84_in>;
+ data-lanes = <0 1 2 3>;
+};
+
+&tlmm {
+ lcd0_bklt_en: lcd0-bklt-en-state {
+ pins = "gpio115";
+ function = "gpio";
+ bias-disable;
+ };
+
+ lcd0_bklt_pwm: lcd0-bklt-pwm-state {
+ pins = "gpio59";
+ function = "gpio";
+ bias-disable;
+ };
+};
--
2.34.1
Powered by blists - more mailing lists