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=-3.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 5273BC43461 for ; Thu, 10 Sep 2020 19:40:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 19FB120882 for ; Thu, 10 Sep 2020 19:40:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=semihalf-com.20150623.gappssmtp.com header.i=@semihalf-com.20150623.gappssmtp.com header.b="V26TF9RU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726850AbgIJTkl (ORCPT ); Thu, 10 Sep 2020 15:40:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731376AbgIJPiB (ORCPT ); Thu, 10 Sep 2020 11:38:01 -0400 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34A54C06138E for ; Thu, 10 Sep 2020 08:37:51 -0700 (PDT) Received: by mail-wm1-x342.google.com with SMTP id l9so491360wme.3 for ; Thu, 10 Sep 2020 08:37:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=zOv4Yx7m8nr1wvMGpIto7eo/RQlcFF6HnuE7bwkiImk=; b=V26TF9RU0H8cqirlOmhma1qZPwsk3YxxchuEmGY/8twdnEK1YS2MnwDIeU1daMBFjs k/DEqCZBPo+G3W8UJ3nwpjPLtJjQbu2fLnXWV3q6NvmLqgrkj/4oIPhIC96AyL4vEACU oLwgH5LsRkqY4EuIRR6v6oz0RQ8G5aBWM23n856vUQLnoO/xuVXDgswv8J6xhwi2kpKl QVgcffQn+sVZAA4xX3KYJNFGZRyJnC17+7gRQa4MkfGLw3j8aSq5N/ApJ9NL5VR7z/sd H/YDNse7EeeDDIlEDMJvfuMEZPAbrWqQXds7sG8j235L5cFAWeaEMHAXfFnQEeUJC5Wo 2kbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=zOv4Yx7m8nr1wvMGpIto7eo/RQlcFF6HnuE7bwkiImk=; b=DFo04yAx7kG6vjuN/VMFiIOkKPOmk4IY+PTxOdJgkaMW14R2wp/l34m0o5FvmcOyMI uxFssxMAHkU2ov/IOCXCn5q5mIn8RoYprHMR/FOhRt6bFJhN4L5z+PYm25eXwKKbYsZG gQGOEM3bQY+KN3dkPPcctePDkHE47/whi9RKwxImUkLUJv0o0a0YQXE1RexB9ddVg+no udwa459X/El6x9R3TWhWniRM2DStMOq6GEI8MEOucafN6tO+QehKL7xpvOAPOD/UxXPO lEyX0UPHbX8mJL0I8zGBDJ+0aRlOOfbxl4XZgYm6ZpRbluzIJpW1Pl+ci5ZZTwTvcazg GJMQ== X-Gm-Message-State: AOAM533xyEX8pHeskgjOdDqxEKdUEkCzLgv7xRs20OyqkKaoBrcpYhpQ KPVtrELz38TiBaUr0YsNsQ5R7EFNQ7z3Nlb36u6XRQ== X-Google-Smtp-Source: ABdhPJyIDFrKOnnP30G4eKbpPJvXcHHi4rzlnfXVwO1u6UWNESErT1eGx5zOz+KoNtJPUTNu7uY0AyPiHI2z0b5arVY= X-Received: by 2002:a1c:6346:: with SMTP id x67mr607078wmb.42.1599752269789; Thu, 10 Sep 2020 08:37:49 -0700 (PDT) MIME-Version: 1.0 References: <20200908200314.22771-1-rad@semihalf.com> <50db252a-1274-f681-d5e7-e7fba839c0ee@linux.intel.com> In-Reply-To: <50db252a-1274-f681-d5e7-e7fba839c0ee@linux.intel.com> From: =?UTF-8?Q?Rados=C5=82aw_Biernacki?= Date: Thu, 10 Sep 2020 17:37:34 +0200 Message-ID: Subject: Re: [PATCH V3] ASoC: Intel: boards: Use FS as nau8825 sysclk in nau88125_* machine To: Pierre-Louis Bossart Cc: Liam Girdwood , Jie Yang , Jaroslav Kysela , Takashi Iwai , Lech Betlej , alsa-devel@alsa-project.org, Todd Broch , Harshapriya , John Hsu , linux-kernel@vger.kernel.org, "Sienkiewicz, Michal" , Ben Zhang , Mac Chiang , Yong Zhi , Marcin Wojtas , Vamshi Krishna , Alex Levin Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Thank you Pierre. All your comments are addressed in V4. skylake_nau8825_resume_post() is in fact unnecessary as my test shows no difference if we do the FLL setup in skylake_nau8825_trigger(). patch is coming... wt., 8 wrz 2020 o 22:59 Pierre-Louis Bossart napisa=C5=82(a): > > Sorry, I couldn't resist adding three more comments to improve further: > > > -static int skylake_nau8825_hw_params(struct snd_pcm_substream *substre= am, > > - struct snd_pcm_hw_params *params) > > +static int skylake_nau8825_trigger(struct snd_pcm_substream *substream= , int cmd) > > { > > struct snd_soc_pcm_runtime *rtd =3D substream->private_data; > > + struct snd_pcm_runtime *runtime =3D substream->runtime; > > struct snd_soc_dai *codec_dai =3D asoc_rtd_to_codec(rtd, 0); > > - int ret; > > - > > - ret =3D snd_soc_dai_set_sysclk(codec_dai, > > - NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN); > > + int ret =3D 0; > > > > - if (ret < 0) > > - dev_err(rtd->dev, "snd_soc_dai_set_sysclk err =3D %d\n", = ret); > > + switch (cmd) { > > + case SNDRV_PCM_TRIGGER_START: > > + ret =3D snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_FLL= _FS, 0, > > + SND_SOC_CLOCK_IN); > > Maybe a simple comment to explain what this does? > > > + if (ret < 0) { > > + dev_err(codec_dai->dev, "can't set FS clock %d\n"= , ret); > > + break; > > + } > > + ret =3D snd_soc_dai_set_pll(codec_dai, 0, 0, runtime->rat= e, > > + runtime->rate * 256); > > + if (ret < 0) > > + dev_err(codec_dai->dev, "can't set FLL: %d\n", re= t); > > + break; > > You could replace this by a /* fallthrough */ statement? > > > + case SNDRV_PCM_TRIGGER_RESUME: > > + ret =3D snd_soc_dai_set_pll(codec_dai, 0, 0, runtime->rat= e, > > + runtime->rate * 256); > > + if (ret < 0) > > + dev_err(codec_dai->dev, "can't set FLL: %d\n", re= t); > > + break; > > + } > > > +static int __maybe_unused skylake_nau8825_resume_post(struct snd_soc_c= ard *card) > > +{ > > + struct snd_soc_dai *codec_dai; > > + > > + codec_dai =3D snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_= DAI); > > + if (!codec_dai) { > > + dev_err(card->dev, "Codec dai not found\n"); > > + return -EIO; > > + } > > + > > + dev_dbg(codec_dai->dev, "playback_active:%d playback_widget->acti= ve:%d codec_dai->rate:%d\n", > > + codec_dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK], > > + codec_dai->playback_widget->active, > > + codec_dai->rate); > > + > > + if (codec_dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK] && > > + codec_dai->playback_widget->active) > > + snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_FLL_FS, 0, > > + SND_SOC_CLOCK_IN); > > And that part is also worthy of a comment, e.g. why not do this as part > of the TRIGGER_RESUME and why only for playback? > > > > --- a/sound/soc/intel/boards/skl_nau88l25_ssm4567.c > > +++ b/sound/soc/intel/boards/skl_nau88l25_ssm4567.c > > same comments for this other machine driver. >