linux-kernel - Re: [PATCH v2 3/5] ARM: mvebu: set SW polling as SDHCI card detection on A388-GP

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20151009095204.41010dd9@free-electrons.com>
Date:	Fri, 9 Oct 2015 09:52:04 +0200
From:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
To:	Marcin Wojtas <mw@...ihalf.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mmc@...r.kernel.org, ulf.hansson@...aro.org,
	sebastian.hesselbarth@...il.com, andrew@...n.ch,
	jason@...edaemon.net, gregory.clement@...e-electrons.com,
	nadavh@...vell.com, alior@...vell.com, tawfik@...vell.com,
	jaz@...ihalf.com
Subject: Re: [PATCH v2 3/5] ARM: mvebu: set SW polling as SDHCI card
 detection on A388-GP

Dear Marcin Wojtas,

On Fri,  9 Oct 2015 03:03:53 +0200, Marcin Wojtas wrote:
> The newest revisions of A388-GP (v1.5 and higher) support only
> DAT3-based card detection. Revisions < v1.5 based on GPIO detection
> via I2C expander, but this solution is supposed to be deprecated on
> new boards. In order to satisfy all type of hardware this commit
> changes card detection to use software polling mechanism.
> 
> Signed-off-by: Marcin Wojtas <mw@...ihalf.com>

Can we add a comment on the DT that explains why SW polling is used,
and which other mechanism can be used depending on the board revision?

Thanks,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/