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Fri, 7 Jun 2019 18:33:19 -0400 Received: from [192.168.0.20] (cpc89242-aztw30-2-0-cust488.18-1.cable.virginm.net [86.31.129.233]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id BFBBC334; Sat, 8 Jun 2019 00:33:16 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1559946797; bh=zZaOVkazACakBjto1ZCP7O2AnuIlKXTpF6TQtEVtNHE=; h=Reply-To:Subject:To:Cc:References:From:Date:In-Reply-To:From; b=tRkT6aN+YMTvvWpVE85kIO8dNI56qeIHD/VsMJ/aIQ/5ViJ+HC6TUVOkzNV0oB8f0 IF4/Aza0kr8etlbFCWBl0kHpSzgCLC3FLJT9li58uXA4Eq0nPQpxbRYlHcDcRLkjNT ZGJPKTjZHi7n0P3WX4BOS+DPD7eDi8FRom+Z+qEQ= Reply-To: kieran.bingham@ideasonboard.com Subject: Re: [PATCH v3 04/10] dt-bindings: display: renesas: lvds: Add renesas,companion property To: Laurent Pinchart , dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, Jacopo Mondi , devicetree@vger.kernel.org, Jacopo Mondi References: <20190528141234.15425-1-laurent.pinchart+renesas@ideasonboard.com> <20190528141234.15425-5-laurent.pinchart+renesas@ideasonboard.com> From: Kieran Bingham Openpgp: preference=signencrypt Autocrypt: addr=kieran.bingham@ideasonboard.com; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190528141234.15425-5-laurent.pinchart+renesas@ideasonboard.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 8bit Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Hi Laurent, On 28/05/2019 15:12, Laurent Pinchart wrote: > Add a new optional renesas,companion property to point to the companion > LVDS encoder. This is used to support dual-link operation where the main > LVDS encoder splits even-numbered and odd-numbered pixels between the > two LVDS encoders. > > The new property doesn't control the mode of operation, it only > describes the relationship between the master and companion LVDS > encoders. > > Signed-off-by: Laurent Pinchart > Reviewed-by: Jacopo Mondi > Tested-by: Jacopo Mondi > --- > Changes since v2: > > - Clarify when the companion property is required or not allowed > > Changes since v1: > > - Fixed typo > --- > .../devicetree/bindings/display/bridge/renesas,lvds.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > index 900a884ad9f5..2d24bd8cbec5 100644 > --- a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > @@ -45,6 +45,13 @@ OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. > > Each port shall have a single endpoint. > > +Optional properties: > +> +- renesas,companion : phandle to the companion LVDS encoder. This property is > + mandatory for the first LVDS encoder on D3 and E3 SoCs, and shall point to > + the second encoder to be used as a companion in dual-link mode. It shall not > + be set for any other LVDS encoder. > + I see Sam has already asked for an updated example, so with that: I'm fine with the text above. Reviewed-by: Kieran Bingham > > Example: > > -- Regards -- Kieran