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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 28D42C2BA83 for ; Wed, 12 Feb 2020 11:43:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F25B52082F for ; Wed, 12 Feb 2020 11:43:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="lDfQr6Li" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727007AbgBLLnn (ORCPT ); Wed, 12 Feb 2020 06:43:43 -0500 Received: from mail-wm1-f65.google.com ([209.85.128.65]:40461 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727111AbgBLLnn (ORCPT ); Wed, 12 Feb 2020 06:43:43 -0500 Received: by mail-wm1-f65.google.com with SMTP id t14so1945209wmi.5 for ; Wed, 12 Feb 2020 03:43:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=KOvpD7jZ6dU2lykqqwZ1WffWjcj24MrFs0WAUYdtKH4=; b=lDfQr6Liipb++iFWX6iJLPM9MLax/98YrjUMx2NSCP8nRQEJxYPjeazAW44phauv1J zDMSgxErIqX4lltTO8KyGkxULwpxH6e9bJjady6qCsW+AebfdzEjQF+Mcss/P6lo3+OS FF91PfU0aV/URWm4wh3GjSVnh613RzCiGx7tWGzzdRYi6ewXTPYxFjEv1efuDc7Jqwge zn5xpPgaLdj2zpQqUiy9CKCUKgX907JZl8MXHgLWLPzbAIeBDfLt3go9I+tWL4EHPVdP 006LMBAjbJpqTAWatWWABjuhtYLmX8EQ7svmcDYwPWKzjX5P+6qeN/fAarriHxmM6Zfn q7rA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=KOvpD7jZ6dU2lykqqwZ1WffWjcj24MrFs0WAUYdtKH4=; b=KyPhRufX9t1wp3uEjaRtZs4QPoeGA/W6DB2fPLZ07sdj8/LvGL6C5bytQX6YSpiEUL x5NRZlJCOwU4YtrQssswWSX/yGc/WSexX8Zbsv396uNn2oxFPKuXCk3Do9BgSri2OjiR bAnNjomGuRaA4v8NwGQ7HW8RcQ0BPcl+ePFUq5tcJZWesJRfUzodp3ElfWwdI52Nehzh Qvdcaf/9/7h3D8TWVfMRNaCn2K6Q6PC6hG0Jj1RauvTwiW6NpgtFyAuZe54uM+w7WQWW xcJnjBVJ6zPlVah6CeiXQXHZfruKFDr0cRsYwZCo12PBsi7bfdMUEAoV7j+VIIhhAEpZ ztsw== X-Gm-Message-State: APjAAAVtJYP+adQ8WXfBT9C/Y57SlOZI83sbDQeHM/LHmc7ONEtueGGw 8C1goTjVr2t3ro/ayygw3eyYM9WNi2k= X-Google-Smtp-Source: APXvYqzE17zeWea41ReY8EYtUfOouJpQCc5O05qfY1oQPGPCmX9DhPfP9NiRKKy53KgUTk1hUJxU6A== X-Received: by 2002:a05:600c:2046:: with SMTP id p6mr11846557wmg.167.1581507821024; Wed, 12 Feb 2020 03:43:41 -0800 (PST) Received: from [192.168.86.34] (cpc89974-aztw32-2-0-cust43.18-1.cable.virginm.net. [86.30.250.44]) by smtp.googlemail.com with ESMTPSA id q130sm473499wme.19.2020.02.12.03.43.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Feb 2020 03:43:38 -0800 (PST) Subject: Re: [PATCH v3 6/6] ASoC: qdsp6: dt-bindings: Add q6afe pcm dt binding documentation To: Adam Serbinski Cc: Mark Brown , Rob Herring , Bjorn Andersson , Andy Gross , Mark Rutland , Liam Girdwood , Patrick Lai , Banajit Goswami , Jaroslav Kysela , Takashi Iwai , alsa-devel@alsa-project.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20200212015222.8229-1-adam@serbinski.com> <20200212015222.8229-7-adam@serbinski.com> <579e0ae1-f257-7af3-eac9-c8e3ab3b52c7@linaro.org> <2989c09149976a28d13d4b4eb10b7c7e@serbinski.com> From: Srinivas Kandagatla Message-ID: Date: Wed, 12 Feb 2020 11:43:37 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <2989c09149976a28d13d4b4eb10b7c7e@serbinski.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 12/02/2020 11:01, Adam Serbinski wrote: >>> >>> + >>> + - qcom,pcm-slot-mapping >>> +    Usage: required for pcm interface >> >> Are these not specific to 8k and 16k mode ? >> We should probably list values for both modes here. > > No, this is just the offset that the audio sample is placed in with > respect to a maximum of 4 slots, 16 bits wide, beginning with the sync > pulse. That's not true atleast by the QDSP documentation, according to it we will use more slots to transfer at higher sample rate. ex: 16 kHz data can be transferred using 8 kHz samples in two slots. Also there are 32 slots for each of 4 supported channels for PCM AFE port. > > When switching between 8 and 16k sample rate, it is just the sync pulse > rate that is changed. The audio sample will be delivered in the same > slot, just at a different frequency.