From patchwork Tue Feb 13 17:48:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kieran Bingham X-Patchwork-Id: 10217155 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6CCA860329 for ; Tue, 13 Feb 2018 17:49:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5D29828707 for ; Tue, 13 Feb 2018 17:49:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 51BB3287DE; Tue, 13 Feb 2018 17:49:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CF71E28707 for ; Tue, 13 Feb 2018 17:49:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 70F3D6E293; Tue, 13 Feb 2018 17:49:05 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 510616E289 for ; Tue, 13 Feb 2018 17:49:04 +0000 (UTC) Received: from localhost.localdomain (cpc89242-aztw30-2-0-cust488.18-1.cable.virginm.net [86.31.129.233]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 853BE217BB; Tue, 13 Feb 2018 17:49:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 853BE217BB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=kbingham@kernel.org From: Kieran Bingham To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org Subject: [PATCH v4 1/5] dt-bindings: media: adv7604: Extend bindings to allow specifying slave map addresses Date: Tue, 13 Feb 2018 17:48:53 +0000 Message-Id: <1518544137-2742-2-git-send-email-kbingham@kernel.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1518544137-2742-1-git-send-email-kbingham@kernel.org> References: <1518544137-2742-1-git-send-email-kbingham@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jean-Michel Hautbois , Kieran Bingham , Kieran Bingham , Sergei Shtylyov Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Jean-Michel Hautbois The ADV7604 has thirteen 256-byte maps that can be accessed via the main I2C ports. Each map has it own I2C address and acts as a standard slave device on the I2C bus. Extend the device tree node bindings to be able to override the default addresses so that address conflicts with other devices on the same bus may be resolved at the board description level. Signed-off-by: Jean-Michel Hautbois [Kieran: Re-adapted for mainline] Signed-off-by: Kieran Bingham Reviewed-by: Rob Herring Reviewed-by: Laurent Pinchart --- Based upon the original posting : https://lkml.org/lkml/2014/10/22/469 v2: - DT Binding update separated from code change - Minor reword to commit message to account for DT only change. - Collected Rob's RB tag. v3: - Split map register addresses into individual declarations. v4: - Collect Laurents RB tag - Adapt commit title - Normalise I2C usage (I²C is harder to grep for) .../devicetree/bindings/media/i2c/adv7604.txt | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/media/i2c/adv7604.txt b/Documentation/devicetree/bindings/media/i2c/adv7604.txt index 9cbd92eb5d05..dcf57e7c60eb 100644 --- a/Documentation/devicetree/bindings/media/i2c/adv7604.txt +++ b/Documentation/devicetree/bindings/media/i2c/adv7604.txt @@ -13,7 +13,11 @@ Required Properties: - "adi,adv7611" for the ADV7611 - "adi,adv7612" for the ADV7612 - - reg: I2C slave address + - reg: I2C slave addresses + The ADV76xx has up to thirteen 256-byte maps that can be accessed via the + main I2C ports. Each map has it own I2C address and acts as a standard + slave device on the I2C bus. The main address is mandatory, others are + optional and revert to defaults if not specified. - hpd-gpios: References to the GPIOs that control the HDMI hot-plug detection pins, one per HDMI input. The active flag indicates the GPIO @@ -35,6 +39,11 @@ Optional Properties: - reset-gpios: Reference to the GPIO connected to the device's reset pin. - default-input: Select which input is selected after reset. + - reg-names : Names of maps with programmable addresses. + It can contain any map needing a non-default address. + Possible maps names are : + "main", "avlink", "cec", "infoframe", "esdp", "dpp", "afe", + "rep", "edid", "hdmi", "test", "cp", "vdp" Optional Endpoint Properties: @@ -52,7 +61,12 @@ Example: hdmi_receiver@4c { compatible = "adi,adv7611"; - reg = <0x4c>; + /* + * The edid page will be accessible @ 0x66 on the I2C bus. All + * other maps will retain their default addresses. + */ + reg = <0x4c>, <0x66>; + reg-names "main", "edid"; reset-gpios = <&ioexp 0 GPIO_ACTIVE_LOW>; hpd-gpios = <&ioexp 2 GPIO_ACTIVE_HIGH>;