From patchwork Thu Dec 2 16:23:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 519932 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3059C4167B for ; Thu, 2 Dec 2021 16:25:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359478AbhLBQ2q (ORCPT ); Thu, 2 Dec 2021 11:28:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359461AbhLBQ2n (ORCPT ); Thu, 2 Dec 2021 11:28:43 -0500 Received: from mail-lj1-x22c.google.com (mail-lj1-x22c.google.com [IPv6:2a00:1450:4864:20::22c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78E68C061758; Thu, 2 Dec 2021 08:25:20 -0800 (PST) Received: by mail-lj1-x22c.google.com with SMTP id l7so775265lja.2; Thu, 02 Dec 2021 08:25:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=TqYniy4pFRsXD92ySrc+ZxB/2v4IriL3y3/YUqS2PUE=; b=BQwLoD5GsKuHwGcm9CCRNNoWfhuNnvmOM/2ZfVxwRSvlj+i9mrX6Mzj+ppnnqAI2rq E4tEwLGLm2ZnzLcmo7YCVVDjFY/vifIM4jmBBPiT9ZNPUUc6jzq+1MFNWnx+tx+iOPx1 iCqsC/b3kAPfUNlk7ZZvnIGQb82xDqikIR2SFjicK1Bq8gRWRMpOORG1GxFsWkYuCL+4 HshbFPgGDw1cizhpzuODlQc4P6wY2GQ3HLYY8tmbpgbAXrmgv4ynsB2RGnML4RhD0PEA hOOHxPmFfl9yyVqq1ELu6U0RJDWBjL6/FD8csHQz7n6CUkw0CaSpULEtIoeWnNSCiXy+ A+Jg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=TqYniy4pFRsXD92ySrc+ZxB/2v4IriL3y3/YUqS2PUE=; b=HSHzoOMPiTrAdQHOg7YA98loFRs9ahxTrwPMzzgLpjyuB/+XkEYbrV/RSu6nyjhpmv WSir2PpARjLjpuze1l5QpdxngDYd73CmeY4t9FRtU+iiX8pDAu+Rb8Xnxm/wDNhBrFK+ YXrvf4PHGrg2y1FxQWfT56lfvioJOAP7wwBptPh6xb0PzHu6Lp77WYNk425aVVcYOTh5 f8vh0v/eNvTEuQJW3e3JnkfrFSPHkLJ85L8Oi5AcJPQE25bSLWnhRhcPRuZm7Tb5cBnQ SHN1uv9Hlelmql7vMDLR6hn0mtE5rJfs2kTCyrod6DN36zkAfcE0J4+U4u2vAKN/QhHE w72Q== X-Gm-Message-State: AOAM532S7RS+JJBSM6Pu4K/r188deH+b18M5BMyUrKv1zWqaK9YvmJME jPxlfm4+p1pBksbJ2ey4n1k= X-Google-Smtp-Source: ABdhPJySugSp1rA4YrKTD7/t4BqlpGfdBZL4TlGHm+Feas4m0Bqsz3MGvtiX9EqaRmuZilIyrhztTA== X-Received: by 2002:a2e:948:: with SMTP id 69mr12422486ljj.82.1638462318795; Thu, 02 Dec 2021 08:25:18 -0800 (PST) Received: from localhost.localdomain (94-29-46-111.dynamic.spd-mgts.ru. [94.29.46.111]) by smtp.gmail.com with ESMTPSA id d18sm36806lfl.30.2021.12.02.08.25.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 08:25:18 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Takashi Iwai , Jaroslav Kysela , Liam Girdwood , Agneli , Rob Herring Cc: linux-tegra@vger.kernel.org, Arnd Bergmann , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v3 03/20] ASoC: dt-bindings: tegra20-i2s: Document new nvidia,fixed-parent-rate property Date: Thu, 2 Dec 2021 19:23:24 +0300 Message-Id: <20211202162341.1791-4-digetx@gmail.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211202162341.1791-1-digetx@gmail.com> References: <20211202162341.1791-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document new nvidia,fixed-parent-rate property which instructs that this board wants parent clock to stay at a fixed rate. It allows to prevent conflicts between audio components that share same parent PLL. For instance, this property allows to have HDMI audio, speaker and headphones in the system playing audio simultaneously, which is a common pattern for consumer devices. Reviewed-by: Rob Herring Signed-off-by: Dmitry Osipenko --- .../devicetree/bindings/sound/nvidia,tegra20-i2s.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml index ad43b237d9af..68ae124eaf80 100644 --- a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml +++ b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.yaml @@ -42,6 +42,13 @@ properties: - const: rx - const: tx + nvidia,fixed-parent-rate: + description: | + Specifies whether board prefers parent clock to stay at a fixed rate. + This allows multiple Tegra20 audio components work simultaneously by + limiting number of supportable audio rates. + type: boolean + required: - compatible - reg