[PATCH 1/2 v3] drm/panel: Add DT bindings for Samsung LMS380KF01
From: Linus Walleij <hidden>
Date: 2021-07-07 23:45:23
Also in:
dri-devel, phone-devel
Subsystem:
drm driver for widechips ws2401 panels, drm drivers, drm drivers and misc gpu patches, drm panel drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Linus Walleij, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Neil Armstrong, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
This adds device tree bindings for the Samsung Mobile Displays LMS380KF01 RGB DPI display panel. Cc: devicetree@vger.kernel.org Cc: phone-devel@vger.kernel.org Cc: Douglas Anderson <dianders@chromium.org> Cc: Noralf Trønnes <redacted> Signed-off-by: Linus Walleij <redacted> --- ChangeLog v2->v3: - No changes just resending with the series. ChangeLog v1->v2: - Expect SPI bindings to be pulled in for the client and state spi-cpha: true etc. - Make port a required node. - Update the example to use a proper SPI controller (spi-gpio) so we get full validation of the example. --- .../display/panel/samsung,lms380kf01.yaml | 97 +++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml b/Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml
new file mode 100644
index 000000000000..ebc33c36c124
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml@@ -0,0 +1,97 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/samsung,lms380kf01.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung LMS380KF01 display panel + +description: The LMS380KF01 is a 480x800 DPI display panel from Samsung Mobile + Displays (SMD) utilizing the WideChips WS2401 display controller. It can be + used with internal or external backlight control. + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + const: samsung,lms380kf01 + + reg: true + + interrupts: + description: provides an optional ESD (electrostatic discharge) + interrupt that signals abnormalities in the display hardware. + This can also be raised for other reasons like erroneous + configuration. + maxItems: 1 + + reset-gpios: true + + vci-supply: + description: regulator that supplies the VCI analog voltage + usually around 3.0 V + + vccio-supply: + description: regulator that supplies the VCCIO voltage usually + around 1.8 V + + backlight: true + + spi-cpha: true + + spi-cpol: true + + spi-max-frequency: + maximum: 1200000 + + port: true + +required: + - compatible + - reg + - spi-cpha + - spi-cpol + - port + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + spi { + compatible = "spi-gpio"; + sck-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>; + miso-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>; + mosi-gpios = <&gpio 2 GPIO_ACTIVE_HIGH>; + cs-gpios = <&gpio 3 GPIO_ACTIVE_HIGH>; + num-chipselects = <1>; + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "samsung,lms380kf01"; + spi-max-frequency = <1200000>; + spi-cpha; + spi-cpol; + reg = <0>; + vci-supply = <&lcd_3v0_reg>; + vccio-supply = <&lcd_1v8_reg>; + reset-gpios = <&gpio 4 GPIO_ACTIVE_LOW>; + interrupt-parent = <&gpio>; + interrupts = <5 IRQ_TYPE_EDGE_RISING>; + + port { + panel_in: endpoint { + remote-endpoint = <&display_out>; + }; + }; + }; + }; + +...
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2.31.1