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From:   Robert Foss <robert.foss@linaro.org>
To:     airlied@linux.ie, daniel@ffwll.ch, robh+dt@kernel.org,
        matthias.bgg@gmail.com, robert.foss@linaro.org,
        laurent.pinchart@ideasonboard.com, xji@analogixsemi.com,
        hsinyi@chromium.org, dri-devel@lists.freedesktop.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org,
        Chen-Yu Tsai <wenst@chromium.org>, arnd@arndb.de
Subject: [PATCH v2 1/2] dt-bindings: drm/bridge: anx7625: Revert DPI support
Date:   Tue,  8 Mar 2022 10:49:10 +0100
Message-Id: <20220308094911.2680291-2-robert.foss@linaro.org>
In-Reply-To: <20220308094911.2680291-1-robert.foss@linaro.org>
References: <20220308094911.2680291-1-robert.foss@linaro.org>
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Revert DPI support from binding.

DPI support relies on the bus-type enum which does not yet support
Mipi DPI, since no v4l2_fwnode_bus_type has been defined for this
bus type.

When DPI for anx7625 was initially added, it assumed that
V4L2_FWNODE_BUS_TYPE_PARALLEL was the correct bus type for
representing DPI, which it is not.

In order to prevent adding this mis-usage to the ABI, let's revert
the support.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---

Changes since v1:
- Rob: Instead of reverting the entire commit introducing this,
       do a partial revert of only the relevant parts.

 .../display/bridge/analogix,anx7625.yaml      | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
index 1d3e88daca041..25b5ef3f759ca 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
@@ -91,22 +91,7 @@ properties:
         $ref: /schemas/graph.yaml#/$defs/port-base
         unevaluatedProperties: false
         description:
-          MIPI DSI/DPI input.
-
-        properties:
-          endpoint:
-            $ref: /schemas/media/video-interfaces.yaml#
-            type: object
-            additionalProperties: false
-
-            properties:
-              remote-endpoint: true
-
-              bus-type:
-                enum: [1, 5]
-                default: 1
-
-              data-lanes: true
+          Video port for MIPI DSI input.
 
       port@1:
         $ref: /schemas/graph.yaml#/properties/port
@@ -155,8 +140,6 @@ examples:
                     reg = <0>;
                     anx7625_in: endpoint {
                         remote-endpoint = <&mipi_dsi>;
-                        bus-type = <5>;
-                        data-lanes = <0 1 2 3>;
                     };
                 };
 
-- 
2.32.0