From patchwork Fri May 13 21:02:53 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Handrigan X-Patchwork-Id: 622134 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3r62PF5Y7Kz9t6D for ; Sat, 14 May 2016 07:02:41 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932359AbcEMVCf (ORCPT ); Fri, 13 May 2016 17:02:35 -0400 Received: from mx0a-001ae601.pphosted.com ([67.231.149.25]:34360 "EHLO mx0a-001ae601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932458AbcEMVCd (ORCPT ); Fri, 13 May 2016 17:02:33 -0400 Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u4DL0E63025412; Fri, 13 May 2016 16:02:19 -0500 Authentication-Results: ppops.net; spf=pass smtp.mailfrom=Paul.Handrigan@cirrus.com Received: from mail1.cirrus.com (mail1.cirrus.com [141.131.3.20]) by mx0a-001ae601.pphosted.com with ESMTP id 22veanvx8d-1; Fri, 13 May 2016 16:02:19 -0500 Received: from ex3.ad.cirrus.com (ex3.ad.cirrus.com [141.131.36.34]) by mail1.cirrus.com (Postfix) with ESMTP id C78F534053; Fri, 13 May 2016 16:03:36 -0500 (CDT) Received: from localhost (141.131.38.212) by InternalRelay (141.131.36.34) with Microsoft SMTP Server id 14.3.248.2; Fri, 13 May 2016 16:02:18 -0500 From: To: CC: , , , , , Paul Handrigan Subject: [PATCH v3 2/2] ASoC: cs35l33: Add device tree bindings file for cs35l33 Date: Fri, 13 May 2016 16:02:53 -0500 Message-ID: <1463173373-648-1-git-send-email-Paul.Handrigan@cirrus.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Proofpoint-SPF-Result: pass X-Proofpoint-SPF-Record: v=spf1 include:spf-001ae601.pphosted.com ip4:141.131.128.20 ip4:141.131.3.20 ip4:213.128.236.230 ip4:87.246.98.25 ip4:87.246.78.26 -all X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 suspectscore=1 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 impostorscore=0 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1605130275 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Paul Handrigan Add device tree bindings file for the cs35l33 8V boosted class D amplifier. Signed-off-by: Paul Handrigan --- .../devicetree/bindings/sound/cs35l33.txt | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/cs35l33.txt diff --git a/Documentation/devicetree/bindings/sound/cs35l33.txt b/Documentation/devicetree/bindings/sound/cs35l33.txt new file mode 100644 index 0000000..273d73a --- /dev/null +++ b/Documentation/devicetree/bindings/sound/cs35l33.txt @@ -0,0 +1,73 @@ +CS35L33 Speaker Amplifier + +Required properties: + + - compatible : "cirrus,cs35l33" + + - reg : the I2C address of the device for I2C + + - VA-supply, VP-supply : power supplies for the device, + as covered in + Documentation/devicetree/bindings/regulator/regulator.txt. + +Optional properties: + + - reset-gpios : gpio used to reset the amplifier + + - interrupt-parent : Specifies the phandle of the interrupt controller to + which the IRQs from CS35L33 are delivered to. + - interrupts : IRQ line info CS35L33. + (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + for further information relating to interrupt properties) + + - boost-ctl : Booster voltage use to supply the amp. If the value is + 0, then VBST = VP. If greater than 0, the boost voltage will be 3.3V with + a value of 1 and will increase at a step size of 0.1V until a maximum of + 8.0V. + + - ramp-rate : On power up, it affects the time from when the power + up sequence begins to the time the audio reaches a full-scale output. + On power down, it affects the time from when the power-down sequence + begins to when the amplifier disables the PWM outputs. If this property + is not set then soft ramping will be disabled and ramp time would be + 20ms. If this property is set to 0,1,2,3 then ramp times would be 40ms, + 60ms,100ms,175ms respectively for 48KHz sample rate. + + - boost-ipk : The maximum current allowed for the boost converter. + The range starts at 1.85A (0xF0) and goes to a maximum of 3.60A (0xE0) + with a step size of 0.015625A. The default is 2.50A (0x90). + + - hg-algo : Parameters for internal Class H/G algorithm that + controls the amplifier supplies. + +Example: + +cs35l33: cs35l33@40 { + compatible = "cirrus,cs35l33"; + reg = <0x40>; + + VA-supply = <&ldo5_reg>; + VP-supply = <&ldo5_reg>; + + interrupt-parent = <&gpio8>; + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; + + reset-gpios = <&cs47l91 34 0>; + + ramp-rate = <0x0>; + boost-ctl = <0x30>; /* VBST = 8.0V */ + boost-ipk = <0xE0>; /* 3.60A */ + + hg-algo { + mem-depth = <0x3>; + release-rate = <0x3>; + hd-rm = <0xA>; + ldo-thld = <0x1>; + ldo-path-disable = <0x0>; + ldo-entry-delay=<0x4>; + vp-hg-auto; + vp-hg=<0xF>; + vp-hg-rate=<0x2>; + vp-hg-va=<0x0>; + }; +};