From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= To: Kieran Bingham , Laurent Pinchart , Jacopo Mondi , linux-media@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, =?UTF-8?q?Niklas=20S=C3=B6derlund?= , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v4 1/4] dt-bindings: adv748x: make data-lanes property mandatory for CSI-2 endpoints Date: Thu, 29 Nov 2018 03:01:44 +0100 Message-Id: <20181129020147.22115-2-niklas.soderlund+renesas@ragnatech.se> In-Reply-To: <20181129020147.22115-1-niklas.soderlund+renesas@ragnatech.se> References: <20181129020147.22115-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: devicetree-owner@vger.kernel.org List-ID: The CSI-2 transmitters can use a different number of lanes to transmit data. Make the data-lanes mandatory for the endpoints that describe the transmitters as no good default can be set to fallback on. Signed-off-by: Niklas Söderlund --- * Changes since v3 - Add paragraph to describe the accepted values for the source endpoint data-lane property. Thanks Jacopo for pointing this out and sorry for missing this in v2. * Changes since v2 - Update paragraph according to Laurents comments. --- .../devicetree/bindings/media/i2c/adv748x.txt | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/media/i2c/adv748x.txt b/Documentation/devicetree/bindings/media/i2c/adv748x.txt index 5dddc95f9cc46084..4f91686e54a6b939 100644 --- a/Documentation/devicetree/bindings/media/i2c/adv748x.txt +++ b/Documentation/devicetree/bindings/media/i2c/adv748x.txt @@ -48,7 +48,16 @@ are numbered as follows. TXA source 10 TXB source 11 -The digital output port nodes must contain at least one endpoint. +The digital output port nodes, when present, shall contain at least one +endpoint. Each of those endpoints shall contain the data-lanes property as +described in video-interfaces.txt. + +Required source endpoint properties: + - data-lanes: an array of physical data lane indexes + The accepted value(s) for this property depends on which of the two + sources are described. For TXA 1, 2 or 4 data lanes can be described + while for TXB only 1 data lane is valid. See video-interfaces.txt + for detailed description. Ports are optional if they are not connected to anything at the hardware level. -- 2.19.1