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Mon, 01 Jun 2026 13:55:36 +0200 (CEST) Date: Mon, 1 Jun 2026 13:55:36 +0200 From: Sebastian Reichel To: Damon Ding Cc: hjc@rock-chips.com, heiko@sntech.de, andy.yan@rock-chips.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, nicolas.frattaroli@collabora.com, cristian.ciocaltea@collabora.com, dmitry.baryshkov@oss.qualcomm.com, luca.ceresoli@bootlin.com, dianders@chromium.org, m.szyprowski@samsung.com, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 1/3] dt-bindings: display: bridge: analogix-dp: Add data-lanes support for endpoint Message-ID: References: <20260529040530.741336-1-damon.ding@rock-chips.com> <20260529040530.741336-2-damon.ding@rock-chips.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="l4yu2mk2qw7tpdei" Content-Disposition: inline In-Reply-To: <20260529040530.741336-2-damon.ding@rock-chips.com> X-Zoho-Virus-Status: 1 X-Zoho-AV-Stamp: zmail-av-0.2.2.1.5.2/280.300.36 X-ZohoMailClient: External --l4yu2mk2qw7tpdei Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH v4 1/3] dt-bindings: display: bridge: analogix-dp: Add data-lanes support for endpoint MIME-Version: 1.0 Hi, On Fri, May 29, 2026 at 12:05:28PM +0800, Damon Ding wrote: > Add data-lanes property support to the port@1 endpoint for physical > lane mapping configuration. >=20 > Lane mapping is mainly used for below scenarios: > 1. Correct PCB lane swap and differential line routing crossover > without hardware changes; > 2. Adapt mismatched lane pin definitions between SoC and eDP panel; > 3. Support multiple panel hardware variants on the same board > by configuring data-lanes in device tree only. >=20 > Additionally, add data-lanes setting in Rockchip eDP DT node example > to show actual lane mapping usage. >=20 > Signed-off-by: Damon Ding >=20 > --- Reviewed-by: Sebastian Reichel Greetings, -- Sebastian > Changes in v2: > - Add lane mapping application scenarios in commit message. > - Remove redundant deprecated property 'data-lanes' for eDP node. > - Update port@1 $ref to /schemas/graph.yaml#/$defs/port-base. >=20 > Changes in v3: > - Squash data-lanes adjustment of Rockchip eDP DT example into this > commit. > - Add unevaluatedProperties: false to both the port@1 and endpoint > nodes. > --- > .../bindings/display/bridge/analogix,dp.yaml | 19 ++++++++++++++----- > .../rockchip/rockchip,analogix-dp.yaml | 1 + > 2 files changed, 15 insertions(+), 5 deletions(-) >=20 > diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,dp= =2Eyaml b/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml > index 62f0521b0924..ecf206871cdd 100644 > --- a/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml > +++ b/Documentation/devicetree/bindings/display/bridge/analogix,dp.yaml > @@ -42,13 +42,22 @@ properties: > properties: > port@0: > $ref: /schemas/graph.yaml#/properties/port > - description: > - Input node to receive pixel data. > + description: Input node to receive pixel data. > =20 > port@1: > - $ref: /schemas/graph.yaml#/properties/port > - description: > - Port node with one endpoint connected to a dp-connector node. > + $ref: /schemas/graph.yaml#/$defs/port-base > + unevaluatedProperties: false > + description: Port node with one endpoint connected to sink devic= e node. > + properties: > + endpoint: > + $ref: /schemas/media/video-interfaces.yaml# > + unevaluatedProperties: false > + properties: > + data-lanes: > + minItems: 1 > + maxItems: 4 > + items: > + enum: [ 0, 1, 2, 3 ] > =20 > required: > - port@0 > diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,= analogix-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockc= hip,analogix-dp.yaml > index d99b23b88cc5..f690ee393fdb 100644 > --- a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogi= x-dp.yaml > +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogi= x-dp.yaml > @@ -117,6 +117,7 @@ examples: > reg =3D <1>; > =20 > edp_out_panel: endpoint { > + data-lanes =3D <0 1>; > remote-endpoint =3D <&panel_in_edp>; > }; > }; > --=20 > 2.34.1 >=20 --l4yu2mk2qw7tpdei Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE72YNB0Y/i3JqeVQT2O7X88g7+poFAmodczQACgkQ2O7X88g7 +prqbg//W/6q4iL4Z+96KG17dC3Romdv0RIDL4hqiVccAYjIRdOxOyCXB/3Zvt1K v76++g9tq+K89vejb04n5m0qNsnQshLsMqpD9yS4naPQg7wIQMuGsra87qAkhozF lFeImUWIMSS/2dbagApnsatXBrQOkXTky+zkyBNmTe71txgkB401J/MUlBJyz70w 9NUjYAR6bb+8I5WDJUaTbkvu8zjEsAYMQ8PW59+D3aFkn2n/bLHqBqRQDSFyP28T J1GZqwZhSCp3dO2PLLzs4M8tAyowz498gApB8zLo9/yG57U4yBzdrrskbx9MVYUn /kZMFRzbUbaqwqwwWcVjb/C19iMS5T3iTNLfbenJ7v8HHoOHDRqFXEeoMI1FdCKM piUuysqVp/Ub7omiD2myBAPwJ8wuEAaUaKV/bcmC76oU7yX2iCB8xZFkbKuEvVB9 UFEpje/F4gWwP3tK+uoqRLDoQ7pxpcCg81WBWKnCNRqavfD/OfalFth4W9ClaUSQ UjNqx7xF5o2zrxUd5BxTuiNnJjalo3olhcD3c3nVSgdvvHQOdpU4iAp91nAU7whm U+9eq0CE326GKt+hQSdKH3GbqqxUSf6tQ/KypdlFIhPunpzUoARdE1HrwIYbyO5O GJ2sUtue3CQZ3nl0/SyuZIJB1jEGMBA5sigFw6TvOZrilwm4GyI= =I06R -----END PGP SIGNATURE----- --l4yu2mk2qw7tpdei--