From patchwork Mon Feb 12 18:11:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kieran Bingham X-Patchwork-Id: 10213795 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 AD44460236 for ; Mon, 12 Feb 2018 18:12:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9C014205FC for ; Mon, 12 Feb 2018 18:12:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 906B72899D; Mon, 12 Feb 2018 18:12:14 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3DD1D205FC for ; Mon, 12 Feb 2018 18:12:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752699AbeBLSML (ORCPT ); Mon, 12 Feb 2018 13:12:11 -0500 Received: from mail.kernel.org ([198.145.29.99]:42580 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752331AbeBLSMI (ORCPT ); Mon, 12 Feb 2018 13:12:08 -0500 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 D0BE72176F; Mon, 12 Feb 2018 18:12:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D0BE72176F 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-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: Kieran Bingham , Jean-Michel Hautbois , Sergei Shtylyov , Kieran Bingham , Mauro Carvalho Chehab , Rob Herring , Mark Rutland , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS) Subject: [PATCH v2 1/5] dt-bindings: media: adv7604: Add support for i2c_new_secondary_device Date: Mon, 12 Feb 2018 18:11:53 +0000 Message-Id: <1518459117-16733-2-git-send-email-kbingham@kernel.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1518459117-16733-1-git-send-email-kbingham@kernel.org> References: <1518459117-16733-1-git-send-email-kbingham@kernel.org> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 --- 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. .../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..b64e313dcc66 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>;