From patchwork Thu Oct 8 10:13:32 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Songjun Wu X-Patchwork-Id: 527664 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 1CD69140D8C for ; Thu, 8 Oct 2015 21:17:49 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754288AbbJHKRT (ORCPT ); Thu, 8 Oct 2015 06:17:19 -0400 Received: from nasmtp01.atmel.com ([192.199.1.246]:57300 "EHLO DVREDG02.corp.atmel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754262AbbJHKRS (ORCPT ); Thu, 8 Oct 2015 06:17:18 -0400 Received: from sjogate2.atmel.com (10.42.103.223) by DVREDG02.corp.atmel.com (10.42.103.31) with Microsoft SMTP Server id 14.3.235.1; Thu, 8 Oct 2015 04:17:11 -0600 Received: from shaarm01.corp.atmel.com (shaarm01.corp.atmel.com [10.217.6.34]) by sjogate2.atmel.com (8.13.6/8.13.6) with ESMTP id t98ABIjM005872; Thu, 8 Oct 2015 03:11:35 -0700 (PDT) From: Songjun Wu To: , , CC: Songjun Wu , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , , Subject: [RESEND PATCH v3 2/2] ASoC: atmel-classd: DT binding for Class D audio amplifier driver Date: Thu, 8 Oct 2015 18:13:32 +0800 Message-ID: <1444299212-4328-3-git-send-email-songjun.wu@atmel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1444299212-4328-1-git-send-email-songjun.wu@atmel.com> References: <1444299212-4328-1-git-send-email-songjun.wu@atmel.com> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org DT binding documentation for this new ASoC driver. Signed-off-by: Songjun Wu --- Changes in v3: None Changes in v2: - Delete the device node "Sound" in dts. .../devicetree/bindings/sound/atmel-classd.txt | 52 ++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/atmel-classd.txt diff --git a/Documentation/devicetree/bindings/sound/atmel-classd.txt b/Documentation/devicetree/bindings/sound/atmel-classd.txt new file mode 100644 index 0000000..0018451 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/atmel-classd.txt @@ -0,0 +1,52 @@ +* Atmel ClassD driver under ALSA SoC architecture + +Required properties: +- compatible + Should be "atmel,sama5d2-classd". +- reg + Should contain ClassD registers location and length. +- interrupts + Should contain the IRQ line for the ClassD. +- dmas + One DMA specifiers as described in atmel-dma.txt and dma.txt files. +- dma-names + Must be "tx". +- clock-names + Tuple listing input clock names. + Required elements: "pclk", "gclk" and "aclk". +- clocks + Please refer to clock-bindings.txt. + +Optional properties: +- pinctrl-names, pinctrl-0 + Please refer to pinctrl-bindings.txt. +- atmel,model + The user-visible name of this sound complex. + The default value is "CLASSD". +- atmel,pwm-type + PWM modulation type, "single" or "diff". + The default value is "single". +- atmel,non-overlap-time + Set non-overlapping time, the unit is nanosecond(ns). + There are four values, + <5>, <10>, <15>, <20>, the default value is <10>. + Non-overlapping will be disabled if not specified. + +Example: +classd: classd@fc048000 { + compatible = "atmel,sama5d2-classd"; + reg = <0xfc048000 0x100>; + interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) + | AT91_XDMAC_DT_PERID(47))>; + dma-names = "tx"; + clocks = <&classd_clk>, <&classd_gclk>, <&audio_pll_pmc>; + clock-names = "pclk", "gclk", "aclk"; + + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_classd_default>; + atmel,model = "classd @ SAMA5D2-Xplained"; + atmel,pwm-type = "diff"; + atmel,non-overlap-time = <10>; +};