linux-kernel - RE: [PATCH 2/2] mmc: core: Add support for cache ctrl for SD cards

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Date:   Tue, 11 May 2021 08:22:07 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
CC:     "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 2/2] mmc: core: Add support for cache ctrl for SD cards


> > I would expect 2 more patches in this series:
> >  - flush cache on power down
> 
> According to the spec that should not be needed, because that should
> be managed internally in the SD card when we send a poweroff
> notification.
> 
> Did I get that wrong? Do you prefer to send a flush cache as well
> before the poweroff notification?
> 
> >  - cache disablement events?
> 
> This I don't know about. Can you elaborate?
As for the above 2 questions - I asked internally - it may take a while for people to get back to me.
Let's leave it for now.

Thanks,
Avri

> 
> >
> > Thanks,
> > Avri
> 
> Kind regards
> Uffe