diff options
| author | Alexander Stein <alexander.stein@ew.tq-group.com> | 2023-08-22 14:08:00 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-09-25 08:38:41 +0800 |
| commit | c03bff9777df21495813823389f8097356abe99f (patch) | |
| tree | 2acf357eef7d426579f6a9aa2d28094088eb29a4 /arch/arm64/boot/dts/freescale/mba8mx.dtsi | |
| parent | b9b99cef37b2b04165550bda949f702ae5ab1afc (diff) | |
arm64: dts: mba8mx: Add DSI-LVDS bridge nodes
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>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/mba8mx.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/mba8mx.dtsi | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/mba8mx.dtsi b/arch/arm64/boot/dts/freescale/mba8mx.dtsi index 8a9fe5cdcc98..e2bc53b8d39a 100644 --- a/arch/arm64/boot/dts/freescale/mba8mx.dtsi +++ b/arch/arm64/boot/dts/freescale/mba8mx.dtsi @@ -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 = <®_12v>; + enable-gpios = <&expander2 2 GPIO_ACTIVE_HIGH>; + status = "disabled"; + }; + beeper { compatible = "pwm-beeper"; pwms = <&pwm4 0 250000 0>; @@ -65,12 +75,45 @@ }; }; + 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 = <®_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 @@ 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 @@ 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 = <®_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 { |