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Date:   Fri, 7 Feb 2020 16:53:45 +0530
From:   Sameer Pujar <spujar@...dia.com>
To:     David Laight <David.Laight@...LAB.COM>,
        'Dmitry Osipenko' <digetx@...il.com>
CC:     <spujar@...dia.com>, "perex@...ex.cz" <perex@...ex.cz>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        "jonathanh@...dia.com" <jonathanh@...dia.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "sharadg@...dia.com" <sharadg@...dia.com>,
        "mkumard@...dia.com" <mkumard@...dia.com>,
        "viswanathl@...dia.com" <viswanathl@...dia.com>,
        "rlokhande@...dia.com" <rlokhande@...dia.com>,
        "dramesh@...dia.com" <dramesh@...dia.com>,
        "atalambedu@...dia.com" <atalambedu@...dia.com>
Subject: Re: [PATCH v2 4/9] ASoC: tegra: add Tegra210 based I2S driver



On 2/6/2020 10:36 PM, David Laight wrote:
> External email: Use caution opening links or attachments
>
>
> From: f Dmitry Osipenko
>> Sent: 06 February 2020 16:59
>>
>> 30.01.2020 13:33, Sameer Pujar пишет:
>> ...
>>> +static const int tegra210_cif_fmt[] = {
>>> +   0,
>>> +   TEGRA_ACIF_BITS_16,
>>> +   TEGRA_ACIF_BITS_32,
>>> +};
>>> +
>>> +static const int tegra210_i2s_bit_fmt[] = {
>>> +   0,
>>> +   I2S_BITS_16,
>>> +   I2S_BITS_32,
>>> +};
>>> +
>>> +static const int tegra210_i2s_sample_size[] = {
>>> +   0,
>>> +   16,
>>> +   32,
>>> +};
>> static const *unsigned* int?
> Or get rid of the table lookups completely.
> Assuming the index is never zero then the value
> can be calculated as (const_a + const_b * index).

All above tables are mapped to tegra210_i2s_format_text[]. 
Additions/removal of entries will require changes in equation. It is 
better keep the mapping as it is.
>
>          David
>
> -
> Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
> Registration No: 1397386 (Wales)

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