Convert the tpo,tpg110 panel binding to DT schema. Cc: Linus Walleij <linus.walleij@xxxxxxxxxx> Cc: Thierry Reding <thierry.reding@xxxxxxxxx> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxx> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Signed-off-by: Rob Herring <robh@xxxxxxxxxx> --- .../bindings/display/panel/tpo,tpg110.txt | 70 ------------ .../bindings/display/panel/tpo,tpg110.yaml | 101 ++++++++++++++++++ 2 files changed, 101 insertions(+), 70 deletions(-) delete mode 100644 Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt create mode 100644 Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml diff --git a/Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt b/Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt deleted file mode 100644 index 40f3d7c713bb..000000000000 --- a/Documentation/devicetree/bindings/display/panel/tpo,tpg110.txt +++ /dev/null @@ -1,70 +0,0 @@ -TPO TPG110 Panel -================ - -This panel driver is a component that acts as an intermediary -between an RGB output and a variety of panels. The panel -driver is strapped up in electronics to the desired resolution -and other properties, and has a control interface over 3WIRE -SPI. By talking to the TPG110 over SPI, the strapped properties -can be discovered and the hardware is therefore mostly -self-describing. - - +--------+ -SPI -> | TPO | -> physical display -RGB -> | TPG110 | - +--------+ - -If some electrical strap or alternate resolution is desired, -this can be set up by taking software control of the display -over the SPI interface. The interface can also adjust -for properties of the display such as gamma correction and -certain electrical driving levels. - -The TPG110 does not know the physical dimensions of the panel -connected, so this needs to be specified in the device tree. - -It requires a GPIO line for control of its reset line. - -The serial protocol has line names that resemble I2C but the -protocol is not I2C but 3WIRE SPI. - -Required properties: -- compatible : one of: - "ste,nomadik-nhk15-display", "tpo,tpg110" - "tpo,tpg110" -- grestb-gpios : panel reset GPIO -- width-mm : see display/panel/panel-common.txt -- height-mm : see display/panel/panel-common.txt - -The device needs to be a child of an SPI bus, see -spi/spi-bus.txt. The SPI child must set the following -properties: -- spi-3wire -- spi-max-frequency = <3000000>; -as these are characteristics of this device. - -The device node can contain one 'port' child node with one child -'endpoint' node, according to the bindings defined in -media/video-interfaces.txt. This node should describe panel's video bus. - -Example -------- - -panel: display@0 { - compatible = "tpo,tpg110"; - reg = <0>; - spi-3wire; - /* 320 ns min period ~= 3 MHz */ - spi-max-frequency = <3000000>; - /* Width and height from data sheet */ - width-mm = <116>; - height-mm = <87>; - grestb-gpios = <&foo_gpio 5 GPIO_ACTIVE_LOW>; - backlight = <&bl>; - - port { - nomadik_clcd_panel: endpoint { - remote-endpoint = <&foo>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml b/Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml new file mode 100644 index 000000000000..a51660b73f28 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml @@ -0,0 +1,101 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/tpo,tpg110.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TPO TPG110 Panel + +maintainers: + - Linus Walleij <linus.walleij@xxxxxxxxxx> + - Thierry Reding <thierry.reding@xxxxxxxxx> + +description: |+ + This panel driver is a component that acts as an intermediary + between an RGB output and a variety of panels. The panel + driver is strapped up in electronics to the desired resolution + and other properties, and has a control interface over 3WIRE + SPI. By talking to the TPG110 over SPI, the strapped properties + can be discovered and the hardware is therefore mostly + self-describing. + + +--------+ + SPI -> | TPO | -> physical display + RGB -> | TPG110 | + +--------+ + + If some electrical strap or alternate resolution is desired, + this can be set up by taking software control of the display + over the SPI interface. The interface can also adjust + for properties of the display such as gamma correction and + certain electrical driving levels. + + The TPG110 does not know the physical dimensions of the panel + connected, so this needs to be specified in the device tree. + + It requires a GPIO line for control of its reset line. + + The serial protocol has line names that resemble I2C but the + protocol is not I2C but 3WIRE SPI. + + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + oneOf: + - items: + - enum: + - ste,nomadik-nhk15-display + - const: tpo,tpg110 + - const: tpo,tpg110 + + reg: true + + grestb-gpios: + maxItems: 1 + description: panel reset GPIO + + spi-3wire: true + + spi-max-frequency: + const: 3000000 + +required: + - compatible + - reg + - grestb-gpios + - width-mm + - height-mm + - spi-3wire + - spi-max-frequency + - port + +examples: + - |+ + spi { + #address-cells = <1>; + #size-cells = <0>; + + panel: display@0 { + compatible = "tpo,tpg110"; + reg = <0>; + spi-3wire; + /* 320 ns min period ~= 3 MHz */ + spi-max-frequency = <3000000>; + /* Width and height from data sheet */ + width-mm = <116>; + height-mm = <87>; + grestb-gpios = <&foo_gpio 5 1>; + backlight = <&bl>; + + port { + nomadik_clcd_panel: endpoint { + remote-endpoint = <&foo>; + }; + }; + }; + }; + +... -- 2.20.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel