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From:   Curtis Malainey <cujomalainey@google.com>
Date:   Wed, 6 Oct 2021 13:07:25 -0700
Message-ID: <CAOReqxjAO0DpOvfpUwXH4ad+7Bx22TBxQUopBJKAwO8DpGJ20Q@mail.gmail.com>
Subject: Re: [PATCH 3/3] ASoC: Intel: sof_rt5682: use id_alt to enumerate rt5682s
To:     Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc:     Brent Lu <brent.lu@intel.com>,
        ALSA development <alsa-devel@alsa-project.org>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Cezary Rojewski <cezary.rojewski@intel.com>,
        Jie Yang <yang.jie@linux.intel.com>,
        Kai Vehmanen <kai.vehmanen@linux.intel.com>,
        Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>,
        Yong Zhi <yong.zhi@intel.com>,
        Vamshi Krishna Gopal <vamshi.krishna.gopal@intel.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Rander Wang <rander.wang@intel.com>,
        Bard Liao <bard.liao@intel.com>,
        Malik_Hsu <malik_hsu@wistron.corp-partner.google.com>,
        Libin Yang <libin.yang@intel.com>,
        Hans de Goede <hdegoede@redhat.com>,
        Charles Keepax <ckeepax@opensource.cirrus.com>,
        Paul Olaru <paul.olaru@oss.nxp.com>,
        Curtis Malainey <cujomalainey@chromium.org>,
        Mac Chiang <mac.chiang@intel.com>,
        Gongjun Song <gongjun.song@intel.com>
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On Wed, Oct 6, 2021 at 12:58 PM Pierre-Louis Bossart
<pierre-louis.bossart@linux.intel.com> wrote:
>
>
> > I don't see an issue with still using a struct since we are using the
> > same list across multiple machines, but this makes me wonder if maybe
> > we should refactor this into another layer, having the ids at a top
> > structure and then the speaker matches a layer down. E.g.
> >
> >  struct snd_soc_acpi_mach snd_soc_acpi_intel_adl_machines[] = {
> >         {
> >                 .drv_name = "adl_mx98373_rt5682",
> >                 .machine_quirk = snd_soc_acpi_codec_list,
> >                 .quirk_data = &adl_max98373_amp,
> >         },
> >         {
> >                 .drv_name = "adl_mx98357_rt5682",
> >                 .machine_quirk = snd_soc_acpi_codec_list,
> >                 .quirk_data = &adl_max98357a_amp,
> >         },
> >         {
> >                 .drv_name = "adl_mx98360_rt5682",
> >                 .machine_quirk = snd_soc_acpi_codec_list,
> >                 .quirk_data = &adl_max98360a_amp,
> >         }
> > }
> >
> > struct machine_driver adl_rt5682_driver_match {
> >   .id = { "10EC5682", "RTL5682" }
> >   .instances = &adl_rt5682_machines
> > }
>
> We probably need to experiment various options, on one hand the proposal
> removes duplication but in a lot of cases outside of Chromebooks/rt5640
> there is none, so that table rework adds an indirection with no real
> benefit.

Fair point, given the current situation this would benefit RTK boards
only. I have no idea if we will end up in the same boat with any other
boards, but given the current supply chain status I would expect this
(multi-sourcing) to be a way of the future. So maybe an idea we pocket
for now and deploy when we end up in this situation  with more
drivers.