Hi Sebastian.
On Tue, Feb 25, 2020 at 12:53:41PM +0100, Sebastian Reichel wrote:
> Convert panel-dsi-cm bindings to YAML and add
> missing properties while at it.
>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
As saind in previous mail - I prefer to convert ann then patch.
But end result is the same so OK.
> ---
> .../bindings/display/panel/panel-dsi-cm.txt | 31 ------
> .../bindings/display/panel/panel-dsi-cm.yaml | 97 +++++++++++++++++++
> 2 files changed, 97 insertions(+), 31 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/display/panel/panel-dsi-cm.txt
> create mode 100644 Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.txt b/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.txt
> deleted file mode 100644
> index f92d5c9adfc5..000000000000
> --- a/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.txt
> +++ /dev/null
> @@ -1,31 +0,0 @@
> -Generic MIPI DSI Command Mode Panel
> -===================================
> -
> -Required properties:
> -- compatible: "panel-dsi-cm"
> -- reg: DSI channel number
> -
> -Optional properties:
> -- label: a symbolic name for the panel
> -- reset-gpios: panel reset gpio
> -- te-gpios: panel TE gpio
> -
> -Required nodes:
> -- Video port for DSI input
> -
> -Example
> --------
> -
> -lcd0: panel@0 {
> - compatible = "tpo,taal", "panel-dsi-cm";
> - label = "lcd0";
> - reg = <0>;
> -
> - reset-gpios = <&gpio4 6 GPIO_ACTIVE_HIGH>;
> -
> - port {
> - lcd0_in: endpoint {
> - remote-endpoint = <&dsi1_out_ep>;
> - };
> - };
> -};
> diff --git a/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml b/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml
> new file mode 100644
> index 000000000000..ca61171ae145
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/panel-dsi-cm.yaml
> @@ -0,0 +1,97 @@
> +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/panel-dsi-cm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: DSI command mode panels
> +
> +maintainers:
> + - Tomi Valkeinen <tomi.valkeinen@xxxxxx>
> + - Sebastian Reichel <sre@xxxxxxxxxx>
> +
> +description: |
> + This binding file is a collection of the DSI panels that
> + are usually driven in command mode. If no backlight is
> + referenced via the optional backlight property, the DSI
> + panel is assumed to have native backlight support.
> + The panel may use an OF graph binding for the association
> + to the display, or it may be a direct child node of the
> + display.
> +
> +allOf:
> + - $ref: panel-common.yaml#
> +
> +properties:
> +
> + compatible:
> + enum:
> + # compatible must be listed in alphabetical order, ordered by compatible.
> + # The description in the comment is mandatory for each compatible.
> + - motorola,droid4-panel, panel-dsi-cm
> + - nokia,himalaya, panel-dsi-cm
> + - tpo,taal, panel-dsi-cm
Please consider to use the following syntax (from memory - may require
an enum:):
compatible:
description:
Shall contain a panel specific compatible and "panel-dsi-cm"
in that order.
items:
- oneOf:
# Maybe add a short description of this panel
- motorola,droid4-panel
# Maybe add a short description of this panel
- nokia,himalaya
# Maybe add a short description of this panel
- tpo,taal
- const: panel-dsi-cm
Then panel-dsi-cm is always specified as a second mandatory compatible.
> +
> + reg:
> + maxItems: 1
> + description: DSI virtual channel
> +
> + te-gpios:
> + maxItems: 1
> + description:
> + Specifier for a GPIO connected to the panel TE (tearing event) signal.
> + The GPIO informs the system, that data should be sent to the display
> + on rising edges of the GPIO to avoid (or reduce) tearing effects.
> + Falling edge can be supported by inverting the GPIO specifier polarity
> + flag.
te-gpios is used by several panels.
Please add it to panel-common with your nice description.
With the above addressed:
Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Sam
> +
> + vddi-supply:
> + description:
> + Display panels require power to be supplied. While several panels need
> + more than one power supply with panel-specific constraints governing the
> + order and timings of the power supplies, in many cases a single power
> + supply is sufficient, either because the panel has a single power rail, or
> + because all its power rails can be driven by the same supply. In that case
> + the vddi-supply property specifies the supply powering the panel as a
> + phandle to a regulator.
> +
> + vpnl-supply:
> + description:
> + When the display panel needs a second power supply, this property can be
> + used in addition to vddi-supply. Both supplies will be enabled at the
> + same time before the panel is being accessed.
> +
> + width-mm: true
> + height-mm: true
> + label: true
> + rotation: true
> + panel-timing: true
> + port: true
> + reset-gpios: true
> + backlight: true
> +
> +additionalProperties: false
> +
> +required:
> + - compatible
> + - port
> + - reg
> +
> +examples:
> + - |
> + dsi1@12345678 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + panel@0 {
> + compatible = "tpo,taal", "panel-dsi-cm";
> + label = "lcd0";
> + reg = <0>;
> + reset-gpios = <&gpio4 6 GPIO_ACTIVE_HIGH>;
> +
> + port {
> + panel: endpoint {
> + remote-endpoint = <&dsi1_out_ep>;
> + };
> + };
> + };
> + };
> --
> 2.25.0
>
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