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arm64: dts: mba8mx: Add DSI-LVDS bridge nodes

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This adds the DSI-LVDS bridge including the regulator, backlight and
an unspecified panel. It is expected to set the compatible when the
display chain is enabled.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Alexander Stein 2023-08-22 14:08:00 +02:00 committed by Shawn Guo
parent b9b99cef37
commit c03bff9777
1 changed files with 93 additions and 0 deletions
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93
arch/arm64/boot/dts/freescale/mba8mx.dtsi
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@ -8,6 +8,16 @@
/* TQ-Systems GmbH MBa8Mx baseboard */
/ {
backlight_lvds: backlight {
compatible = "pwm-backlight";
pwms = <&pwm3 0 5000000 0>;
brightness-levels = <0 4 8 16 32 64 128 255>;
default-brightness-level = <7>;
power-supply = <&reg_12v>;
enable-gpios = <&expander2 2 GPIO_ACTIVE_HIGH>;
status = "disabled";
};
beeper {
compatible = "pwm-beeper";
pwms = <&pwm4 0 250000 0>;
@ -65,12 +75,45 @@ led2: led2 {
};
};
gpio_delays: gpio-delays {
compatible = "gpio-delay";
#gpio-cells = <3>;
gpio-controller;
gpios = <&expander0 6 GPIO_ACTIVE_HIGH>;
gpio-line-names = "LVDS_BRIDGE_EN_1V8";
};
panel: panel-lvds {
/*
* Display is not fixed, so compatible has to be added from
* DT overlay
*/
backlight = <&backlight_lvds>;
power-supply = <&reg_vcc_3v3>;
status = "disabled";
port {
panel_in_lvds: endpoint {
data-lanes = <1 2 3 4>;
remote-endpoint = <&lvds_bridge_out>;
};
};
};
pcie0_refclk: pcie0-refclk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <100000000>;
};
reg_12v: regulator-12v {
compatible = "regulator-fixed";
regulator-name = "MBA8MX_12V";
regulator-min-microvolt = <12000000>;
regulator-max-microvolt = <12000000>;
regulator-always-on;
};
reg_hub_vbus: regulator-hub-vbus {
compatible = "regulator-fixed";
regulator-name = "MBA8MX_HUB_VBUS";
@ -157,6 +200,10 @@ expander0: gpio@23 {
interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
interrupt-controller;
#interrupt-cells = <2>;
gpio-line-names = "", "", "", "",
"", "", "LVDS_BRIDGE_EN", "",
"", "", "", "",
"", "", "", "";
sd-mux-oe-hog {
gpio-hog;
@ -227,6 +274,52 @@ &i2c3 {
scl-gpios = <&gpio5 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
sda-gpios = <&gpio5 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
status = "okay";
dsi_lvds_bridge: bridge@2d {
compatible = "ti,sn65dsi84";
reg = <0x2d>;
enable-gpios = <&gpio_delays 0 130000 0>;
vcc-supply = <&reg_sn65dsi83_1v8>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
lvds_bridge_in: endpoint {
data-lanes = <1 2 3 4>;
remote-endpoint = <&mipi_dsi_out>;
};
};
port@2 {
reg = <2>;
lvds_bridge_out: endpoint {
remote-endpoint = <&panel_in_lvds>;
};
};
};
};
};
&mipi_dsi {
samsung,burst-clock-frequency = <891000000>;
samsung,esc-clock-frequency = <20000000>;
ports {
port@1 {
reg = <1>;
mipi_dsi_out: endpoint {
data-lanes = <1 2 3 4>;
remote-endpoint = <&lvds_bridge_in>;
};
};
};
};
&pwm3 {