From: Seungwon Jeon <tgih.jun@samsung.com>
To: 'Saugata Das' <saugata.das@linaro.org>, linux-mmc@vger.kernel.org
Subject: RE: Cache Control during mmc_suspend_host
Date: Tue, 13 Dec 2011 15:27:16 +0900 [thread overview]
Message-ID: <000f01ccb960$42ac2a40$c8047ec0$%jun@samsung.com> (raw)
In-Reply-To: <CAKLKtzej1VpD41GwBOoNv_51fPqMHMySViptjk6im_mSkSws9A@mail.gmail.com>
Hi Saugata,
Saugata Das wrote:
> Hi Seungwon Jeon
>
> I see a small issue with the implementation mmc_suspend_host,
>
> int mmc_suspend_host(struct mmc_host *host)
> {
> .....
> err = mmc_cache_ctrl(host, 0);
> }
>
> So, within mmc_suspend_host we are disabling the cache. But I do not
> see a corresponding enabling of cache within mmc_resume_host. I
> suggest we have either enabling of cache within mmc_resume_host or
> within mmc_suspend_host, we replace mmc_cache_ctrl(host, 0) with the
> flush operation, mmc_flush_cache(host->card).
>
Currently,
Cache is enabled in mmc_init_card() during mmc_resume_host().
Thanks,
Seungwon Jeon.
>
>
> Regards
> Saugata
> --
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next prev parent reply other threads:[~2011-12-13 6:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-13 5:02 Cache Control during mmc_suspend_host Saugata Das
2011-12-13 6:27 ` Seungwon Jeon [this message]
2011-12-13 10:37 ` Saugata Das
2011-12-14 4:34 ` Seungwon Jeon
2011-12-15 10:08 ` Saugata Das
2011-12-16 8:50 ` Seungwon Jeon
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