linux-kernel - Re: [PATCH 1/3] ASoC: tlv320aic32x4: prepare driver for different device variants

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Message-ID: <32b82dae-45ea-c6d4-77b7-c8a234cbf803@denx.de>
Date:   Tue, 15 Jun 2021 14:06:30 +0200
From:   Claudius Heine <ch@...x.de>
To:     Mark Brown <broonie@...nel.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        Marek Vasut <marex@...x.de>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Sia Jee Heng <jee.heng.sia@...el.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Annaliese McDermond <nh6z@...z.net>,
        Matthias Schiffer <matthias.schiffer@...tq-group.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] ASoC: tlv320aic32x4: prepare driver for different
 device variants

Hi Mark,

On 2021-06-15 13:54, Mark Brown wrote:
> On Tue, Jun 15, 2021 at 11:49:30AM +0200, Claudius Heine wrote:
> 
>> With this change it will be possible to add different code paths for
>> similar devices.
> 
>>   static const struct i2c_device_id aic32x4_i2c_id[] = {
>> -	{ "tlv320aic32x4", 0 },
>> -	{ "tlv320aic32x6", 1 },
>> +	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
>> +	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
>>   	{ /* sentinel */ }
> 
> It appears that the device already supports multiple variants?

Those values aren't used anywhere as far as I can see.

regards,
Claudius