From patchwork Mon May 21 10:00:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Fitzgerald X-Patchwork-Id: 917511 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=opensource.cirrus.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40qDpn44qPz9s3D for ; Mon, 21 May 2018 20:02:25 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751087AbeEUKCW (ORCPT ); Mon, 21 May 2018 06:02:22 -0400 Received: from mx0a-001ae601.pphosted.com ([67.231.149.25]:41366 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751081AbeEUKAM (ORCPT ); Mon, 21 May 2018 06:00:12 -0400 Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w4L9xn9N018667; Mon, 21 May 2018 05:00:07 -0500 Authentication-Results: ppops.net; spf=none smtp.mailfrom=rf@opensource.cirrus.com Received: from mail4.cirrus.com ([87.246.98.35]) by mx0a-001ae601.pphosted.com with ESMTP id 2j2hb1a3hg-1; Mon, 21 May 2018 05:00:06 -0500 Received: from EX17.ad.cirrus.com (unknown [172.20.9.81]) by mail4.cirrus.com (Postfix) with ESMTP id 244F1611C8B8; Mon, 21 May 2018 05:00:31 -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; Mon, 21 May 2018 11:00:04 +0100 Received: from edi-sw-dsktp006.ad.cirrus.com (edi-sw-dsktp006.ad.cirrus.com [198.90.251.121]) by imbe.wolfsonmicro.main (8.14.4/8.14.4) with ESMTP id w4LA03G2004648; Mon, 21 May 2018 11:00:04 +0100 From: Richard Fitzgerald To: , , , CC: , , , Subject: [PATCH v10 RESEND 7/9] pinctrl: madera: Add DT bindings for Cirrus Logic Madera codecs Date: Mon, 21 May 2018 11:00:00 +0100 Message-ID: <20180521100002.11094-8-rf@opensource.cirrus.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180521100002.11094-1-rf@opensource.cirrus.com> References: <20180521100002.11094-1-rf@opensource.cirrus.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=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1805210122 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This is the binding description of the pinctrl driver for Cirrus Logic Madera codecs. The binding uses the generic pinctrl binding so the main purpose here is to describe the device-specific names for groups and functions. Signed-off-by: Richard Fitzgerald Acked-by: Rob Herring Acked-by: Linus Walleij --- .../bindings/pinctrl/cirrus,madera-pinctrl.txt | 99 ++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/cirrus,madera-pinctrl.txt diff --git a/Documentation/devicetree/bindings/pinctrl/cirrus,madera-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/cirrus,madera-pinctrl.txt new file mode 100644 index 000000000000..b0e36cf0d289 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/cirrus,madera-pinctrl.txt @@ -0,0 +1,99 @@ +Cirrus Logic Madera class audio codecs pinctrl driver + +The Cirrus Logic Madera codecs provide a number of GPIO functions for +interfacing to external hardware and to provide logic outputs to other devices. +Certain groups of GPIO pins also have an alternate function, normally as an +audio interface. + +The set of available GPIOs, functions and alternate function groups differs +between codecs so refer to the datasheet for the codec for further information +on what is supported on that device. + +The properties for this driver exist within the parent MFD driver node. + +See also + the core bindings for the parent MFD driver: + Documentation/devicetree/bindings/mfd/madera.txt + + the generic pinmix bindings: + Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt + +Required properties of parent mfd node: + - pinctrl-names : must be "default" + - pinctrl-0 : a phandle to the node containing the subnodes containing default + configurations + +Required subnodes: + One subnode is required to contain the default settings. It contains an + arbitrary number of configuration subnodes, one for each group or pin + configuration you want to apply as a default. + +Required properties of configuration subnodes: + - groups : name of one pin group to configure. One of: + aif1, aif2, aif3, aif4, mif1, mif2, mif3, pdmspk1, pdmspk2, + dmic4, dmic5, dmic6, + gpio1, gpio2, ..., gpio40 + The gpioN groups select the single pin of this name for configuration + +Optional properties of configuration subnodes: + Any configuration option not explicitly listed in the dts will be left at + chip default setting. + + - function : name of function to assign to this group. One of: + aif1, aif2, aif3, aif4, mif1, mif2, mif3, pdmspk1, pdmspk2, + dmic3, dmic4, dmic5, dmic6, + io, dsp-gpio, irq1, irq2, + fll1-clk, fll1-lock, fll2-clk, fll2-lock, fll3-clk, fll3-lock, + fllao-clk, fllao-lock, + opclk, opclk-async, pwm1, pwm2, spdif, + asrc1-in1-lock, asrc1-in2-lock, asrc2-in1-lock, asrc2-in2-lock, + spkl-short-circuit, spkr-short-circuit, spk-shutdown, + spk-overheat-shutdown, spk-overheat-warn, + timer1-sts, timer2-sts, timer3-sts, timer4-sts, timer5-sts, timer6-sts, + timer7-sts, timer8-sts, + log1-fifo-ne, log2-fifo-ne, log3-fifo-ne, log4-fifo-ne, log5-fifo-ne, + log6-fifo-ne, log7-fifo-ne, log8-fifo-ne, + + - bias-disable : disable pull-up and pull-down + - bias-bus-hold : enable buskeeper + - bias-pull-up : output is pulled-up + - bias-pull-down : output is pulled-down + - drive-push-pull : CMOS output + - drive-open-drain : open-drain output + - drive-strength : drive strength in mA. Valid values are 4 or 8 + - input-schmitt-enable : enable schmitt-trigger mode + - input-schmitt-disable : disable schmitt-trigger mode + - input-debounce : A value of 0 disables debounce, a value !=0 enables + debounce + - output-low : set the pin to output mode with low level + - output-high : set the pin to output mode with high level + +Example: + +cs47l85@0 { + compatible = "cirrus,cs47l85"; + + pinctrl-names = "default"; + pinctrl-0 = <&cs47l85_defaults>; + + cs47l85_defaults: cs47l85-gpio-defaults { + aif1 { + groups = "aif1"; + function = "aif1"; + bias-bus-hold; + }; + + aif2 { + groups = "aif2"; + function = "aif2"; + bias-bus-hold; + }; + + opclk { + groups = "gpio1"; + function = "opclk"; + bias-pull-up; + drive-strength = <8>; + }; + }; +};