From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C5DAC4363D for ; Wed, 7 Oct 2020 13:02:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D8AA420789 for ; Wed, 7 Oct 2020 13:02:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="txDSCDnG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728345AbgJGNCv (ORCPT ); Wed, 7 Oct 2020 09:02:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46428 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728325AbgJGNCv (ORCPT ); Wed, 7 Oct 2020 09:02:51 -0400 Received: from mail-il1-x143.google.com (mail-il1-x143.google.com [IPv6:2607:f8b0:4864:20::143]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 22F5CC061755; Wed, 7 Oct 2020 06:02:51 -0700 (PDT) Received: by mail-il1-x143.google.com with SMTP id c5so2155774ilr.9; Wed, 07 Oct 2020 06:02:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=xgra9s8aJ1g9hZznlmShgFGid1qDvqpduTjQ63z9Ai4=; b=txDSCDnGVOvBmCLpVuBmy9IwJHZMw5/f4HStsCW+a8uQ7KWFidpfrCed0boKAYPdf0 m9m57hMEGQJvsAFppDA44N//SLhO8o8hmLybVJEVm08MQ8NDl0bAy6hLRPDejWPB91RX ytVP/dxuCa7IhDhfJbL6TLJsjPlIdWiiiWoIez1gZF7MJno9VmRVAPE9yuluvWPiS3r/ C76xBU9YpL+XL3SoGiw1TApJcJYf/vUoh/jYNwViuQ14P6TgiTxQoyE07SDDzJbINIGk EfYyobyL8GDPNsmhyjk/PhF9PVucyaEQEkR7MeJTcGjJvyTS1MCz4bW6BPfokTHg0NOz dHxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=xgra9s8aJ1g9hZznlmShgFGid1qDvqpduTjQ63z9Ai4=; b=YiTs+3yR7rCYVW7k4IRajdyZGlTPiouQM/hTc+IhFdPQAkN02OolFGB0zES1+Di7Sq 2qijQc9cmHmqsaiSS6LNfWlcdMd7C9LWpRJDW+kGIacJnytSTQnD81YIkh36ED9X9wfG tIFrLWnzZxxa3mIQJg7qVORNHXat/2tBn5uJ/Dt1ofL3KKC4Ad5eGjn6VJ6SvY/ba+5L bsU2IZFH7Vmu2nmRrmWREMRmIbQwqyWfdpWr3+5HhIS6e54VFk3PQqadq3eWxXMGYKnh B+knY34EhrhjQXOzffQXNpMmVjy020QsX0PaoQs2fym6slZ7NJfNHPWnCdDRRIPycRGO wprA== X-Gm-Message-State: AOAM531iW+imi3Bm904gMDEotdarGdno5TqhwKZTb4UyDucKd1MqH9U0 BLNAevzxj1AdLYVN0NCeAqU= X-Google-Smtp-Source: ABdhPJyCcgAY00Z2svC4bvm0PN2VeHh0tvFzCAmFibdex1iaqZRd6Iwj3EXya/oA9U7bGCAolg8SRA== X-Received: by 2002:a92:dc03:: with SMTP id t3mr2541087iln.245.1602075770162; Wed, 07 Oct 2020 06:02:50 -0700 (PDT) Received: from aford-IdeaCentre-A730.lan ([2601:448:8400:9e8:7c62:dd9d:b755:cfbd]) by smtp.gmail.com with ESMTPSA id w14sm1000038ilm.88.2020.10.07.06.02.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Oct 2020 06:02:49 -0700 (PDT) From: Adam Ford To: linux-arm-kernel@lists.infradead.org Cc: aford@beaconembedded.com, Adam Ford , Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: imx8mm-beacon-som: Fix Choppy BT audio Date: Wed, 7 Oct 2020 08:02:37 -0500 Message-Id: <20201007130237.230613-1-aford173@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org When streaming bluetooth audio, the sound is choppy due to the fact that the default baud rate of the HCI interface is too slow to handle 16-bit stereo at 48KHz. The Bluetooth chip is capable of up to 4M baud on the serial port, so this patch sets the max-speed to 4000000 in order to properly stream audio over the Bluetooth. Fixes: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit") Signed-off-by: Adam Ford diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi index 55b36bddd513..b88c3c99b007 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi @@ -211,6 +211,7 @@ bluetooth { host-wakeup-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>; device-wakeup-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>; clocks = <&osc_32k>; + max-speed = <4000000>; clock-names = "extclk"; }; }; -- 2.25.1