On Wed, Apr 08, 2020 at 09:51:03PM +0200, Sam Ravnborg wrote:
> This binding describes a panel with a secondary channel.
>
> v2:
> - add check for required properties if link2 is present (Rob)
>
> Signed-off-by: Sam Ravnborg <s...@ravnborg.org>
> Cc: Rob Herring <r...@kernel.org>
> Cc: Thierry Reding <thierry.red...@gmail.com>
> Cc: Sam Ravnborg <s...@ravnborg.org>
> ---
> .../display/panel/sharp,lq101r1sx01.txt | 49 -----------
> .../display/panel/sharp,lq101r1sx01.yaml | 85 +++++++++++++++++++
> 2 files changed, 85 insertions(+), 49 deletions(-)
> delete mode 100644
> Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.txt
> create mode 100644
> Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml
>
> diff --git
> a/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.txt
> b/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.txt
> deleted file mode 100644
> index f522bb8e47e1..000000000000
> --- a/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.txt
> +++ /dev/null
> @@ -1,49 +0,0 @@
> -Sharp Microelectronics 10.1" WQXGA TFT LCD panel
> -
> -This panel requires a dual-channel DSI host to operate. It supports two
> modes:
> -- left-right: each channel drives the left or right half of the screen
> -- even-odd: each channel drives the even or odd lines of the screen
> -
> -Each of the DSI channels controls a separate DSI peripheral. The peripheral
> -driven by the first link (DSI-LINK1), left or even, is considered the primary
> -peripheral and controls the device. The 'link2' property contains a phandle
> -to the peripheral driven by the second link (DSI-LINK2, right or odd).
> -
> -Note that in video mode the DSI-LINK1 interface always provides the left/even
> -pixels and DSI-LINK2 always provides the right/odd pixels. In command mode it
> -is possible to program either link to drive the left/even or right/odd pixels
> -but for the sake of consistency this binding assumes that the same assignment
> -is chosen as for video mode.
> -
> -Required properties:
> -- compatible: should be "sharp,lq101r1sx01"
> -- reg: DSI virtual channel of the peripheral
> -
> -Required properties (for DSI-LINK1 only):
> -- link2: phandle to the DSI peripheral on the secondary link. Note that the
> - presence of this property marks the containing node as DSI-LINK1.
> -- power-supply: phandle of the regulator that provides the supply voltage
> -
> -Optional properties (for DSI-LINK1 only):
> -- backlight: phandle of the backlight device attached to the panel
> -
> -Example:
> -
> - dsi@54300000 {
> - panel: panel@0 {
> - compatible = "sharp,lq101r1sx01";
> - reg = <0>;
> -
> - link2 = <&secondary>;
> -
> - power-supply = <...>;
> - backlight = <...>;
> - };
> - };
> -
> - dsi@54400000 {
> - secondary: panel@0 {
> - compatible = "sharp,lq101r1sx01";
> - reg = <0>;
> - };
> - };
> diff --git
> a/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml
> b/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml
> new file mode 100644
> index 000000000000..956608cada77
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml
> @@ -0,0 +1,85 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/sharp,lq101r1sx01.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sharp Microelectronics 10.1" WQXGA TFT LCD panel
> +
> +maintainers:
> + - Thierry Reding <tred...@nvidia.com>
> +
> +description: |
> + This panel requires a dual-channel DSI host to operate. It supports two
> modes:
> + - left-right: each channel drives the left or right half of the screen
> + - even-odd: each channel drives the even or odd lines of the screen
> +
> + Each of the DSI channels controls a separate DSI peripheral. The peripheral
> + driven by the first link (DSI-LINK1), left or even, is considered the
> primary
> + peripheral and controls the device. The 'link2' property contains a phandle
> + to the peripheral driven by the second link (DSI-LINK2, right or odd).
> +
> + Note that in video mode the DSI-LINK1 interface always provides the
> left/even
> + pixels and DSI-LINK2 always provides the right/odd pixels. In command mode
> it
> + is possible to program either link to drive the left/even or right/odd
> pixels
> + but for the sake of consistency this binding assumes that the same
> assignment
> + is chosen as for video mode.
> +
> +allOf:
> + - $ref: panel-common.yaml#
> +
> +properties:
> + compatible:
> + const: sharp,lq101r1sx01
> +
> + reg: true
> + power-supply: true
> + backlight: true
> +
> + link2:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description: |
> + phandle to the DSI peripheral on the secondary link. Note that the
> + presence of this property marks the containing node as DSI-LINK1
> +
> +required:
> + - compatible
> + - reg
> +
> +if:
> + required:
> + - link2
> +then:
> + required:
> + - power-supply
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + dsi0 {
Probably should put a reg property and unit-address here so the
dsi-controller schema will match on these.
With that,
Reviewed-by: Rob Herring <r...@kernel.org>
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + panel: panel@0 {
> + compatible = "sharp,lq101r1sx01";
> + reg = <0>;
> +
> + link2 = <&secondary>;
> +
> + power-supply = <&power>;
> + backlight = <&backlight>;
> + };
> + };
> +
> + dsi1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + secondary: panel@0 {
> + compatible = "sharp,lq101r1sx01";
> + reg = <0>;
> + };
> + };
> +
> +...
> --
> 2.20.1
>
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