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Message-ID: <TY3PR01MB11346805C5D524D264669D178864B2@TY3PR01MB11346.jpnprd01.prod.outlook.com> Date: Tue, 29 Oct 2024 06:58:27 +0000 From: Biju Das <biju.das.jz@...renesas.com> To: Liu Ying <victor.liu@....com>, "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>, "imx@...ts.linux.dev" <imx@...ts.linux.dev>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> CC: "andrzej.hajda@...el.com" <andrzej.hajda@...el.com>, "neil.armstrong@...aro.org" <neil.armstrong@...aro.org>, "rfoss@...nel.org" <rfoss@...nel.org>, laurent.pinchart <laurent.pinchart@...asonboard.com>, "jonas@...boo.se" <jonas@...boo.se>, "jernej.skrabec@...il.com" <jernej.skrabec@...il.com>, "maarten.lankhorst@...ux.intel.com" <maarten.lankhorst@...ux.intel.com>, "mripard@...nel.org" <mripard@...nel.org>, "tzimmermann@...e.de" <tzimmermann@...e.de>, "airlied@...il.com" <airlied@...il.com>, "simona@...ll.ch" <simona@...ll.ch>, "robh@...nel.org" <robh@...nel.org>, "krzk+dt@...nel.org" <krzk+dt@...nel.org>, "conor+dt@...nel.org" <conor+dt@...nel.org>, "quic_jesszhan@...cinc.com" <quic_jesszhan@...cinc.com>, "mchehab@...nel.org" <mchehab@...nel.org>, "shawnguo@...nel.org" <shawnguo@...nel.org>, "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>, "kernel@...gutronix.de" <kernel@...gutronix.de>, "festevam@...il.com" <festevam@...il.com>, "catalin.marinas@....com" <catalin.marinas@....com>, "will@...nel.org" <will@...nel.org>, "sakari.ailus@...ux.intel.com" <sakari.ailus@...ux.intel.com>, "hverkuil@...all.nl" <hverkuil@...all.nl>, "tomi.valkeinen@...asonboard.com" <tomi.valkeinen@...asonboard.com>, "quic_bjorande@...cinc.com" <quic_bjorande@...cinc.com>, "geert+renesas@...der.be" <geert+renesas@...der.be>, "dmitry.baryshkov@...aro.org" <dmitry.baryshkov@...aro.org>, "arnd@...db.de" <arnd@...db.de>, "nfraprado@...labora.com" <nfraprado@...labora.com>, "thierry.reding@...il.com" <thierry.reding@...il.com>, Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>, "sam@...nborg.org" <sam@...nborg.org>, "marex@...x.de" <marex@...x.de> Subject: RE: [PATCH v4 08/13] dt-bindings: display: Document dual-link LVDS display common properties Hi Liu Ying, > -----Original Message----- > From: Liu Ying <victor.liu@....com> > Sent: 29 October 2024 06:17 > Subject: Re: [PATCH v4 08/13] dt-bindings: display: Document dual-link LVDS display common properties > > On 10/28/2024, Liu Ying wrote: > > Dual-link LVDS displays receive odd pixels and even pixels separately > > from dual LVDS links. One link receives odd pixels and the other > > receives even pixels. Some of those displays may also use only one > > LVDS link to receive all pixels, being odd and even agnostic. > > Document common properties for those displays by extending LVDS > > display common properties defined in lvds.yaml. > > > > Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org> > > Signed-off-by: Liu Ying <victor.liu@....com> > > --- > > v4: > > * Squash change for advantech,idk-2121wr.yaml and > > panel-simple-lvds-dual-ports.yaml with lvds-dual-ports.yaml. (Rob) > > * Improve description in lvds-dual-ports.yaml. (Krzysztof) > > > > v3: > > * New patch. (Dmitry) > > > > .../bindings/display/lvds-dual-ports.yaml | 76 +++++++++++++++++++ > > .../display/panel/advantech,idk-2121wr.yaml | 14 +--- > > .../panel/panel-simple-lvds-dual-ports.yaml | 20 +---- > > 3 files changed, 78 insertions(+), 32 deletions(-) create mode > > 100644 Documentation/devicetree/bindings/display/lvds-dual-ports.yaml > > > > diff --git > > a/Documentation/devicetree/bindings/display/lvds-dual-ports.yaml > > b/Documentation/devicetree/bindings/display/lvds-dual-ports.yaml > > new file mode 100644 > > index 000000000000..5f7a30640404 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/display/lvds-dual-ports.yaml > > @@ -0,0 +1,76 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/display/lvds-dual-ports.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Dual-link LVDS Display Common Properties > > + > > +maintainers: > > + - Liu Ying <victor.liu@....com> > > + > > +description: | > > + Common properties for LVDS displays with dual LVDS links. Extend > > +LVDS display > > + common properties defined in lvds.yaml. > > + > > + Dual-link LVDS displays receive odd pixels and even pixels > > + separately from the dual LVDS links. One link receives odd pixels > > + and the other receives even pixels. Some of those displays may also > > + use only one LVDS link to receive all pixels, being odd and even agnostic. > > + > > +allOf: > > + - $ref: lvds.yaml# > > + > > +properties: > > + ports: > > + $ref: /schemas/graph.yaml#/properties/ports > > + > > + properties: > > + port@0: > > + $ref: /schemas/graph.yaml#/$defs/port-base > > + unevaluatedProperties: false > > + description: the first LVDS input link > > + > > + properties: > > + dual-lvds-odd-pixels: > > + type: boolean > > + description: the first LVDS input link for odd pixels > > + > > + dual-lvds-even-pixels: > > + type: boolean > > + description: the first LVDS input link for even pixels > > + > > + oneOf: > > + - required: [dual-lvds-odd-pixels] > > + - required: [dual-lvds-even-pixels] > > + - properties: > > + dual-lvds-odd-pixels: false > > + dual-lvds-even-pixels: false > > + > > + port@1: > > + $ref: /schemas/graph.yaml#/$defs/port-base > > + unevaluatedProperties: false > > + description: the second LVDS input link > > + > > + properties: > > + dual-lvds-odd-pixels: > > + type: boolean > > + description: the second LVDS input link for odd pixels > > + > > + dual-lvds-even-pixels: > > + type: boolean > > + description: the second LVDS input link for even pixels > > + > > + oneOf: > > + - required: [dual-lvds-odd-pixels] > > + - required: [dual-lvds-even-pixels] > > + - properties: > > + dual-lvds-odd-pixels: false > > + dual-lvds-even-pixels: false > > Hmm, I should require port@0 or port@1. For dual LVDS, you need 3 ports as common use case 2 input ports and 1 outport and all are required properties. Cheers, Biju > Will wait a while for comments and add this in next version. > > --8<-- > anyOf: > - required: > - port@0 > - required: > - port@1 > --8<-- > > > + > > +required: > > + - ports > > + > > +additionalProperties: true > > + > > +... > > [...] > > -- > Regards, > Liu Ying
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