linux-kernel - RE: [PATCH 4/6] ASoC: samsung: fsd: Add FSD soundcard driver

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Message-ID: <04a801d8e524$65416ec0$2fc44c40$@samsung.com>
Date:   Fri, 21 Oct 2022 13:39:04 +0530
From:   "Padmanabhan Rajanbabu" <p.rajanbabu@...sung.com>
To:     "'Mark Brown'" <broonie@...nel.org>
Cc:     <lgirdwood@...il.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <s.nawrocki@...sung.com>,
        <perex@...ex.cz>, <tiwai@...e.com>, <pankaj.dubey@...sung.com>,
        <alim.akhtar@...sung.com>, <rcsekar@...sung.com>,
        <aswani.reddy@...sung.com>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-samsung-soc@...r.kernel.org>
Subject: RE: [PATCH 4/6] ASoC: samsung: fsd: Add FSD soundcard driver



> -----Original Message-----
> From: Mark Brown [mailto:broonie@...nel.org]
> Sent: 14 October 2022 05:53 PM
> To: Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
> Cc: lgirdwood@...il.com; robh+dt@...nel.org;
> krzysztof.kozlowski+dt@...aro.org; s.nawrocki@...sung.com;
> perex@...ex.cz; tiwai@...e.com; pankaj.dubey@...sung.com;
> alim.akhtar@...sung.com; rcsekar@...sung.com;
> aswani.reddy@...sung.com; alsa-devel@...a-project.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-samsung-
> soc@...r.kernel.org
> Subject: Re: [PATCH 4/6] ASoC: samsung: fsd: Add FSD soundcard driver
> 
> On Fri, Oct 14, 2022 at 03:51:49PM +0530, Padmanabhan Rajanbabu wrote:
> 
> > +++ b/sound/soc/samsung/fsd-card.c
> > @@ -0,0 +1,349 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * ALSA SoC Audio Layer - FSD Soundcard driver
> > + *
> > + * Copyright (c) 2022 Samsung Electronics Co. Ltd.
> > + *	Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
> 
> Please make the entire comment a C++ one so things look more intentional.
okay
> 
> > +	if (link->dai_fmt & SND_SOC_DAIFMT_CBC_CFC) {
> > +		cdclk_dir = SND_SOC_CLOCK_OUT;
> > +	} else if (link->dai_fmt & SND_SOC_DAIFMT_CBP_CFP) {
> > +		cdclk_dir = SND_SOC_CLOCK_IN;
> > +	} else {
> > +		dev_err(card->dev, "Missing Clock Master information\n");
> > +		goto err;
> > +	}
> 
> We're trying to modernise the langauge around clock providers, please use
> that term rather than the outdated terminology here.
Okay, I'll make the necessary change for the clock terminologies in the next
patch set
> 
> > +	if (priv->tdm_slots) {
> > +		ret = snd_soc_dai_set_tdm_slot(cpu_dai, false, false,
> > +				priv->tdm_slots, priv->tdm_slot_width);
> > +		if (ret < 0) {
> > +			dev_err(card->dev,
> > +				"Failed to configure in TDM mode:%d\n",
> ret);
> > +			goto err;
> > +		}
> > +	}
> 
> Just set things once on probe if they don't depend on the configuration,
it's
> neater and marginally faster if nothing else.
Okay
> 
> > +	if (of_property_read_bool(dev->of_node, "widgets")) {
> > +		ret = snd_soc_of_parse_audio_simple_widgets(card,
> "widgets");
> > +		if (ret)
> > +			return ERR_PTR(ret);
> > +	}
> > +
> > +	/* Add DAPM routes to the card */
> > +	if (of_property_read_bool(node, "audio-routing")) {
> > +		ret = snd_soc_of_parse_audio_routing(card, "audio-
> routing");
> > +		if (ret)
> > +			return ERR_PTR(ret);
> > +	}
> 
> Just fix the library functions to handle missing properties gracefully,
every
> card is going to need the same code here.
Okay

Thank you for reviewing the patch