From patchwork Fri Jul 28 09:47:04 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Fitzgerald X-Patchwork-Id: 9868211 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 253B760382 for ; Fri, 28 Jul 2017 09:48:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 292222888F for ; Fri, 28 Jul 2017 09:48:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1DD0D288B9; Fri, 28 Jul 2017 09:48:38 +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=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CCA22288B8 for ; Fri, 28 Jul 2017 09:48:35 +0000 (UTC) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 6340F267692; Fri, 28 Jul 2017 11:47:33 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id E6EC3267687; Fri, 28 Jul 2017 11:47:28 +0200 (CEST) Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by alsa0.perex.cz (Postfix) with ESMTP id 3892A26766E for ; Fri, 28 Jul 2017 11:47:22 +0200 (CEST) Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v6S9jbQ8016411; Fri, 28 Jul 2017 04:47:21 -0500 Authentication-Results: ppops.net; spf=none smtp.mailfrom=rf@opensource.wolfsonmicro.com Received: from mail3.cirrus.com ([87.246.76.56]) by mx0b-001ae601.pphosted.com with ESMTP id 2bv34jt5w0-1; Fri, 28 Jul 2017 04:47:20 -0500 Received: from EX17.ad.cirrus.com (ex17.ad.cirrus.com [172.20.9.81]) by mail3.cirrus.com (Postfix) with ESMTP id 5519D611CE7C; Fri, 28 Jul 2017 04:50:07 -0500 (CDT) Received: from imbe.wolfsonmicro.main (198.61.95.81) by EX17.ad.cirrus.com (172.20.9.81) with Microsoft SMTP Server id 14.3.301.0; Fri, 28 Jul 2017 10:47:19 +0100 Received: from rf-debian.ad.cirrus.com (rf-debian.ad.cirrus.com [198.90.223.45]) by imbe.wolfsonmicro.main (8.14.4/8.14.4) with ESMTP id v6S9lJsv005188; Fri, 28 Jul 2017 10:47:19 +0100 From: Richard Fitzgerald To: , , , , , , Date: Fri, 28 Jul 2017 10:47:04 +0100 Message-ID: <1501235239-11145-3-git-send-email-rf@opensource.wolfsonmicro.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1501235239-11145-1-git-send-email-rf@opensource.wolfsonmicro.com> References: <1501235239-11145-1-git-send-email-rf@opensource.wolfsonmicro.com> MIME-Version: 1.0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1706020000 definitions=main-1707280151 Cc: linux-gpio@vger.kernel.org, alsa-devel@alsa-project.org, patches@opensource.wolfsonmicro.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [alsa-devel] [PATCH v4 02/17] mfd: madera: Add DT bindings for Cirrus Logic Madera codecs X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP Specification of the bindings for the parent MFD driver component of the Cirrus Logic Madera codec drivers. Note that although the interrupt controller and GPIO are child drivers their required bindings are trivial, mandatory, and exist within the parent MFD node so are documented here. Signed-off-by: Richard Fitzgerald Acked-by: Rob Herring Acked-for-MFD-by: Lee Jones --- Documentation/devicetree/bindings/mfd/madera.txt | 102 +++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/madera.txt diff --git a/Documentation/devicetree/bindings/mfd/madera.txt b/Documentation/devicetree/bindings/mfd/madera.txt new file mode 100644 index 0000000..db32660 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/madera.txt @@ -0,0 +1,102 @@ +Cirrus Logic Madera class audio codecs Multi-Functional Device + +These devices are audio SoCs with extensive digital capabilities and a range +of analogue I/O. + +See also the child driver bindings in: +bindings/pinctrl/cirrus,madera-pinctrl.txt +bindings/regulator/arizona-regulator.txt +bindings/sound/madera.txt + +Required properties: + + - compatible : One of the following chip-specific strings: + "cirrus,cs47l35" + "cirrus,cs47l85" + "cirrus,cs47l90" + "cirrus,cs47l91" + "cirrus,wm1840" + + - reg : I2C slave address when connected using I2C, chip select number when + using SPI. + + - DCVDD-supply : Power supply for the device as defined in + bindings/regulator/regulator.txt + Mandatory on CS47L35, CS47L90, CS47L91 + Optional on CS47L85, WM1840 + + - AVDD-supply, DBVDD1-supply, DBVDD2-supply, CPVDD1-supply, CPVDD2-supply : + Power supplies for the device + + - DBVDD3-supply, DBVDD4-supply : Power supplies for the device + (CS47L85, CS47L90, CS47L91, WM1840) + + - SPKVDDL-supply, SPKVDDR-supply : Power supplies for the device + (CS47L85, WM1840) + + - SPKVDD-supply : Power supply for the device + (CS47L35) + + - interrupt-controller : Indicates that this device is an interrupt controller + + - #interrupt-cells: the number of cells to describe an IRQ, must be 2. + The first cell is the IRQ number. + The second cell is the flags, encoded as the trigger masks from + bindings/interrupt-controller/interrupts.txt + + - gpio-controller : Indicates this device is a GPIO controller. + + - #gpio-cells : Must be 2. The first cell is the pin number. The second cell + is reserved for future use and must be zero + + - interrupt-parent : The parent interrupt controller. + + - interrupts : The interrupt line the /IRQ signal for the device is + connected to. + +Optional properties: + + - MICVDD-supply : Power supply, only need to be specified if + powered externally + + - reset-gpios : One entry specifying the GPIO controlling /RESET. + As defined in bindings/gpio.txt. + Although optional, it is strongly recommended to use a hardware reset + + - MICBIASx : Initial data for the MICBIAS regulators, as covered in + Documentation/devicetree/bindings/regulator/regulator.txt. + One for each MICBIAS generator (MICBIAS1, MICBIAS2, ...) + (all codecs) + + One for each output pin (MICBIAS1A, MIBCIAS1B, MICBIAS2A, ...) + (all except CS47L85, WM1840) + + The following following additional property is supported for the generator + nodes: + - cirrus,ext-cap : Set to 1 if the MICBIAS has external decoupling + capacitors attached. + +Optional child nodes: + micvdd : Node containing initialization data for the micvdd regulator + See bindings/regulator/arizona-regulator.txt + + ldo1 : Node containing initialization data for the LDO1 regulator + See bindings/regulator/arizona-regulator.txt + (cs47l85, wm1840) + +Example: + +cs47l85@0 { + compatible = "cirrus,cs47l85"; + reg = <0>; + + reset-gpios = <&gpio 0>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupts = <&host_irq1>; + interrupt-parent = <&gic>; + + gpio-controller; + #gpio-cells = <2>; +};