linux-kernel - Re: [RFC PATCH] ASoC: Intel: sst: Delete sst_save

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Message-ID: <CAHp75VezZESJQk4kacSk3OstewTa6OFvyGDY0ogyP3dsqUSVqA@mail.gmail.com>
Date:   Sat, 27 May 2017 19:35:38 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     Mark Brown <broonie@...nel.org>, Vinod Koul <vinod.koul@...el.com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, colin.king@...onical.com,
        o-takashi@...amocchi.jp, sebastien.guiriec@...el.com,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] ASoC: Intel: sst: Delete sst_save_shim64(); saved
 regs are never used

On Fri, May 26, 2017 at 7:34 PM, Douglas Anderson <dianders@...omium.org> wrote:
> In commit 9a075265c6dc ("ASoC: Intel: sst: Remove unused function
> sst_restore_shim64()"), we deleted the sst_restore_shim64() since it
> was never used.  ...but a quick look at the code shows that we should
> also be able to remove the sst_save_shim64() function and the
> structure members we were storing data in.
>
> Note that the saving code (and the comments talking about how
> important it is to do the save) has been around since
> commit 336cfbb05edf ("ASoC: Intel: mrfld- add ACPI module").

While I like "-" statistics, the below I think should be preserved if
it's repeating real registers layout.

>  struct sst_shim_regs64 {
> -       u64 csr;
>         u64 pisr;
>         u64 pimr;
>         u64 isrx;
>         u64 isrd;
> -       u64 imrx;
>         u64 imrd;
>         u64 ipcx;
>         u64 ipcd;

-- 
With Best Regards,
Andy Shevchenko