Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp3423641pxb; Mon, 1 Mar 2021 09:37:09 -0800 (PST) X-Google-Smtp-Source: ABdhPJyL55QuBON3nxwXacTgKPNbtbMcaxdb8t9z1XVQ7Jc41xfWAGdPYVGAHUlATY6GSuLaWc5T X-Received: by 2002:a17:906:c1cf:: with SMTP id bw15mr17463745ejb.82.1614620228924; Mon, 01 Mar 2021 09:37:08 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1614620228; cv=none; d=google.com; s=arc-20160816; b=hFmBt/+LnkPIU6IbAavzYsoiKAHM4B6+WE0jn12tuDtGVEIzSfmt1TbPstlJ1bfRtH KCdmLn9WuPyKFGGUL+A+0eKAzJTKKu6YR3CPdHPCTSiss/Mg0XcIzdoWbRzJuhtGvgkW OJnGkaKHUwGmO8UicIIUSXp6ksAGevdPZb25ZlPmY7dn5IaIqCX0ByLFbkgGijIQzVJk 2uzBHYWqJS7fVAC+iQB33G7sGA9EL5EOZVmbXox9xVk4XyZU5JdANcLcRkW6sBAb8yAK MmzdA8VaSHKSwppyQ6TgbpobNi87yZCahjY1ANa8c6zOPzU5U0iWwCy8aDiGMt1gpV6Y LOGw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=qLVgbr3N1K8pzvDOvxAFfjNfDuuZEmVqqqoHF+IbH6k=; b=cVzV/8jA9pL5WBQq8f/lBLUgBy3QFWgFpkSsbb5adFIfrXjiUMDUGe51vck5D8mAJF QskHAWErHoek+YC4v7MZTQ1yBGgpVtxaVn48IW2cbVM9k4hyLP7XxwgBAjKf5Z/6y3a9 PzeUFjwYmFNCMMmfdxD9yNPgLgjga+synOIfKyqKY1zSNiNsvgDBmcIbpVtwsBULsg/m f3m/My/B2xutgwOMDSmQEJGAcl7UMCOGEL35UuaoGj7/X6G8bKYMyNPxu9/FixpIL7ai NRV5xuM3fO31MjMxLVEuJwsps6qt4J3lBTtkI1MY4/QBiKbHQsvgB8m2R8prhz1Zbjh/ NwFg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass (test mode) header.i=@ideasonboard.com header.s=mail header.b=JO2+atOW; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id h14si10667683ejk.245.2021.03.01.09.36.46; Mon, 01 Mar 2021 09:37:08 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass (test mode) header.i=@ideasonboard.com header.s=mail header.b=JO2+atOW; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238553AbhCARdm (ORCPT + 99 others); Mon, 1 Mar 2021 12:33:42 -0500 Received: from perceval.ideasonboard.com ([213.167.242.64]:44320 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234768AbhCAQ2z (ORCPT ); Mon, 1 Mar 2021 11:28:55 -0500 Received: from pendragon.ideasonboard.com (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 2195D8A1; Mon, 1 Mar 2021 17:28:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1614616092; bh=zIQKsEQSeYt0vM1IDXx2S6ybJAbk8gSLvOd303Cl3/w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JO2+atOWKb+gad3wBZ7G6cybVMCz5eLCxzSGspZ+gSeelTmdfnGHY9kTcLfA3KjbD pPwLjF0CnSLZThDUGGQ3YSiJc18Wo13Yp4mWb6Gnzuk3/Ov8Rqa+LXLyssboPmxorZ +rJtWmfB1u5Wca+dxML/R8OLpRxBBelyi4qBa/9M= Date: Mon, 1 Mar 2021 18:27:44 +0200 From: Laurent Pinchart To: Parshuram Raju Thombare Cc: "robert.foss@linaro.org" , "robh+dt@kernel.org" , "airlied@linux.ie" , "daniel@ffwll.ch" , "dri-devel@lists.freedesktop.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "a.hajda@samsung.com" , "narmstrong@baylibre.com" , "nikhil.nd@ti.com" , "kishon@ti.com" , Swapnil Kashinath Jakhade , Milind Parab Subject: Re: [PATCH v2 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP Message-ID: References: <1614597685-4192-1-git-send-email-pthombar@cadence.com> <1614597746-4563-1-git-send-email-pthombar@cadence.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Parshuram, On Mon, Mar 01, 2021 at 04:14:54PM +0000, Parshuram Raju Thombare wrote: > Hi Laurent, > > > Is this a property of the hardware, that is, are there multiple versions > > of this IP core covered by the same compatible string that support HDCP > > 1.4 only, DHCP 2.2 only or both ? Or is it a way to select what a given > > system will offer ?[] > > MHDP hardware supports both HDCP 2.2 and 1.4. So, this is a way > to select the version of HDCP, system wish to support. Then I'm not sure this qualifies as a DT property, which should describe the system, not configure it. A way for userspace to configure this would be better. -- Regards, Laurent Pinchart