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Thu, 7 Sep 2023 08:02:53 -0700 From: Sameer Pujar To: , , , CC: , , , , , Subject: [PATCH v2 1/2] ASoC: soc-utils: Export snd_soc_dai_is_dummy() symbol Date: Thu, 7 Sep 2023 20:32:24 +0530 Message-ID: <1694098945-32760-2-git-send-email-spujar@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1694098945-32760-1-git-send-email-spujar@nvidia.com> References: <1694098945-32760-1-git-send-email-spujar@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002BA4F:EE_|CY5PR12MB6480:EE_ X-MS-Office365-Filtering-Correlation-Id: 01ade335-9dd7-472e-3c55-08dbafb38e04 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(39860400002)(376002)(346002)(396003)(136003)(1800799009)(451199024)(186009)(82310400011)(40470700004)(36840700001)(46966006)(7636003)(6666004)(7696005)(356005)(40460700003)(86362001)(36756003)(82740400003)(36860700001)(40480700001)(47076005)(26005)(2616005)(4744005)(2906002)(426003)(336012)(478600001)(110136005)(70586007)(41300700001)(70206006)(8936002)(8676002)(5660300002)(4326008)(54906003)(316002);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Sep 2023 15:03:11.8299 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 01ade335-9dd7-472e-3c55-08dbafb38e04 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF0002BA4F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6480 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Export symbol snd_soc_dai_is_dummy() for usage outside core driver modules. This is required by Tegra ASoC machine driver. Signed-off-by: Sameer Pujar --- sound/soc/soc-utils.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c index 11607c5f5d5a..9c746e4edef7 100644 --- a/sound/soc/soc-utils.c +++ b/sound/soc/soc-utils.c @@ -217,6 +217,7 @@ int snd_soc_dai_is_dummy(struct snd_soc_dai *dai) return 1; return 0; } +EXPORT_SYMBOL_GPL(snd_soc_dai_is_dummy); =20 int snd_soc_component_is_dummy(struct snd_soc_component *component) { --=20 2.17.1 From nobody Fri Dec 19 04:58:57 2025 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 950D1EC873E for ; Thu, 7 Sep 2023 15:53:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238720AbjIGPwp (ORCPT ); Thu, 7 Sep 2023 11:52:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55436 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236496AbjIGPsQ (ORCPT ); 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Thu, 7 Sep 2023 08:03:00 -0700 Received: from rnnvmail202.nvidia.com (10.129.68.7) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.37; Thu, 7 Sep 2023 08:02:59 -0700 Received: from audio.nvidia.com (10.127.8.10) by mail.nvidia.com (10.129.68.7) with Microsoft SMTP Server id 15.2.986.37 via Frontend Transport; Thu, 7 Sep 2023 08:02:56 -0700 From: Sameer Pujar To: , , , CC: , , , , , , Subject: [PATCH v2 2/2] ASoC: tegra: Fix redundant PLLA and PLLA_OUT0 updates Date: Thu, 7 Sep 2023 20:32:25 +0530 Message-ID: <1694098945-32760-3-git-send-email-spujar@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1694098945-32760-1-git-send-email-spujar@nvidia.com> References: <1694098945-32760-1-git-send-email-spujar@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002BA4F:EE_|BL1PR12MB5240:EE_ X-MS-Office365-Filtering-Correlation-Id: 4895460d-4933-4667-75bc-08dbafb38fe3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Sep 2023 15:03:14.9706 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4895460d-4933-4667-75bc-08dbafb38fe3 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF0002BA4F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5240 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Tegra audio graph card has many DAI links which connects internal AHUB modules and external audio codecs. Since these are DPCM links, hw_params() call in the machine driver happens for each connected BE link and PLLA is updated every time. This is not really needed for all links as only I/O link DAIs derive respective clocks from PLLA_OUT0 and thus from PLLA. Hence add checks to limit the clock updates to DAIs over I/O links. This found to be fixing a DMIC clock discrepancy which is suspected to happen because of back to back quick PLLA and PLLA_OUT0 rate updates. This was observed on Jetson TX2 platform where DMIC clock ended up with unexpected value. Fixes: 202e2f774543 ("ASoC: tegra: Add audio graph based card driver") Cc: stable@vger.kernel.org Signed-off-by: Sameer Pujar --- sound/soc/tegra/tegra_audio_graph_card.c | 30 ++++++++++++++---------- 1 file changed, 17 insertions(+), 13 deletions(-) diff --git a/sound/soc/tegra/tegra_audio_graph_card.c b/sound/soc/tegra/teg= ra_audio_graph_card.c index 1f2c5018bf5a..4737e776d383 100644 --- a/sound/soc/tegra/tegra_audio_graph_card.c +++ b/sound/soc/tegra/tegra_audio_graph_card.c @@ -10,6 +10,7 @@ #include #include #include +#include =20 #define MAX_PLLA_OUT0_DIV 128 =20 @@ -44,6 +45,21 @@ struct tegra_audio_cdata { unsigned int plla_out0_rates[NUM_RATE_TYPE]; }; =20 +static bool need_clk_update(struct snd_soc_dai *dai) +{ + if (snd_soc_dai_is_dummy(dai) || + !dai->driver->ops || + !dai->driver->name) + return false; + + if (strstr(dai->driver->name, "I2S") || + strstr(dai->driver->name, "DMIC") || + strstr(dai->driver->name, "DSPK")) + return true; + + return false; +} + /* Setup PLL clock as per the given sample rate */ static int tegra_audio_graph_update_pll(struct snd_pcm_substream *substrea= m, struct snd_pcm_hw_params *params) @@ -140,19 +156,7 @@ static int tegra_audio_graph_hw_params(struct snd_pcm_= substream *substream, struct snd_soc_dai *cpu_dai =3D asoc_rtd_to_cpu(rtd, 0); int err; =20 - /* - * This gets called for each DAI link (FE or BE) when DPCM is used. - * We may not want to update PLLA rate for each call. So PLLA update - * must be restricted to external I/O links (I2S, DMIC or DSPK) since - * they actually depend on it. I/O modules update their clocks in - * hw_param() of their respective component driver and PLLA rate - * update here helps them to derive appropriate rates. - * - * TODO: When more HW accelerators get added (like sample rate - * converter, volume gain controller etc., which don't really - * depend on PLLA) we need a better way to filter here. - */ - if (cpu_dai->driver->ops && rtd->dai_link->no_pcm) { + if (need_clk_update(cpu_dai)) { err =3D tegra_audio_graph_update_pll(substream, params); if (err) return err; --=20 2.17.1