[PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT35596S panel bindings
Molly Sophia
mollysophia379 at gmail.com
Sun Jul 10 06:19:41 UTC 2022
Hi Sam,
Thanks for your suggestions.
Sam Ravnborg <sam at ravnborg.org> 于 2022年7月10日周日 上午4:47写道：
> Hi Molly,
>
> thanks for the quick response to the review comments.
>
> On Sat, Jul 09, 2022 at 10:11:35PM +0800, MollySophia wrote:
> > Add documentation for "novatek,nt35596s" panel.
> >
> > Signed-off-by: MollySophia <mollysophia379 at gmail.com>
> The s-o-b needs your real name - guess the above is a concatenation of
> first name and surname.
>
> The binding included in this patch fails the check:
> $ make DT_CHECKER_FLAGS=-m dt_binding_check
>
> You may need to run:
> $ pip3 install dtschema --upgrade
>
> Or you may have to install some dependencies first.
> The problem is that the patch is missing a "reset-gpios: true"
>
> On top of this I looked at the binding - and the description
> this is copied from is almost identical.
> So another approach would be to extend the existing binding like
> in the following.
>
> And this also gives a good hint that maybe this can be embedded in
> the existing driver - and there is no need for a new driver.
> Could you try to give this a spin and get back on this.
>
That's reasonable. Actually, this driver was modified from
novatek,nt35596s, with different panel initialization commands, and it
seems easy to be embedded in
the existing driver. However, I wonder what the driver file name would
be...? "panel-novatek-nt35596s-nt36672a.c" or something else?
Molly
Sorry for not seeing this in the first place.
>
> Sam
>
> diff --git
> a/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
> b/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
> index 41ee3157a1cd..913bb81ae93d 100644
> --- a/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
> @@ -20,14 +20,20 @@ allOf:
>
> properties:
> compatible:
> - items:
> - - enum:
> - - tianma,fhd-video
> - - const: novatek,nt36672a
> + oneOf:
> + - items:
> + - enum:
> + - tianma,fhd-video
> + - const: novatek,nt36672a
> +
> + - items:
> + - enum:
> + - jdi,fhd-nt35596s
> + - const: novatek,nt35596s
> +
> description: This indicates the panel manufacturer of the panel that
> is
> - in turn using the NT36672A panel driver. This compatible string
> - determines how the NT36672A panel driver is configured for the
> indicated
> - panel. The novatek,nt36672a compatible shall always be provided as
> a fallback.
> + in turn using the NT36672A or the NT35596S panel driver. This
> compatible string
> + determines how the panel driver is configured for the indicated
> panel.
>
> reset-gpios:
> maxItems: 1
> @@ -85,4 +91,27 @@ examples:
> };
> };
>
> + dsi1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + panel at 0 {
> + compatible = "jdi,fhd-nt35596s", "novatek,nt35596s";
> + reg = <0>;
> + vddi0-supply = <&vreg_l14a_1p88>;
> + vddpos-supply = <&lab>;
> + vddneg-supply = <&ibb>;
> +
> + backlight = <&pmi8998_wled>;
> + reset-gpios = <&tlmm 6 GPIO_ACTIVE_HIGH>;
> +
> + port {
> + jdi_nt35596s_in_1: endpoint {
> + remote-endpoint = <&dsi1_out>;
> + };
> + };
> + };
> + };
> +
> +
> ...
>
> > ---
> > .../display/panel/novatek,nt35596s.yaml | 83 +++++++++++++++++++
> > 1 file changed, 83 insertions(+)
> > create mode 100644
> Documentation/devicetree/bindings/display/panel/novatek,nt35596s.yaml
> >
> > diff --git
> a/Documentation/devicetree/bindings/display/panel/novatek,nt35596s.yaml
> b/Documentation/devicetree/bindings/display/panel/novatek,nt35596s.yaml
> > new file mode 100644
> > index 000000000000..f724f101a6fd
> > --- /dev/null
> > +++
> b/Documentation/devicetree/bindings/display/panel/novatek,nt35596s.yaml
> > @@ -0,0 +1,83 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/display/panel/novatek,nt35596s.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Novatek NT35596S based DSI display Panels
> > +
> > +maintainers:
> > + - Molly Sophia <mollysophia379 at gmail.com>
> > +
> > +description: |
> > + The nt35596s IC from Novatek is a generic DSI Panel IC used to drive
> dsi
> > + panels.
> > + Right now, support is added only for a JDI FHD+ LCD display panel
> with a
> > + resolution of 1080x2160. It is a video mode DSI panel.
> > +
> > +allOf:
> > + - $ref: panel-common.yaml#
> > +
> > +properties:
> > + compatible:
> > + items:
> > + - enum:
> > + - jdi,fhd-nt35596s
> > + - const: novatek,nt35596s
> > + description: This indicates the panel manufacturer of the panel
> that is
> > + in turn using the NT35596S panel driver. This compatible string
> > + determines how the NT35596S panel driver is configured for the
> indicated
> > + panel. The novatek,nt35596s compatible shall always be provided
> as a fallback.
> > +
> > + vddi0-supply:
> > + description: regulator that provides the supply voltage
> > + Power IC supply
> > +
> > + vddpos-supply:
> > + description: positive boost supply regulator
> > +
> > + vddneg-supply:
> > + description: negative boost supply regulator
> > +
> > + reg: true
> > + port: true
> > + backlight: true
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - vddi0-supply
> > + - vddpos-supply
> > + - vddneg-supply
> > + - reset-gpios
> > + - port
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/gpio/gpio.h>
> > +
> > + dsi {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + panel at 0 {
> > + compatible = "jdi,fhd-nt35596s", "novatek,nt35596s";
> > + reg = <0>;
> > + vddi0-supply = <&vreg_l14a_1p88>;
> > + vddpos-supply = <&lab>;
> > + vddneg-supply = <&ibb>;
> > +
> > + backlight = <&pmi8998_wled>;
> > + reset-gpios = <&tlmm 6 GPIO_ACTIVE_HIGH>;
> > +
> > + port {
> > + jdi_nt35596s_in_0: endpoint {
> > + remote-endpoint = <&dsi0_out>;
> > + };
> > + };
> > + };
> > + };
> > +
> > +...
> > --
> > 2.37.0
>
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