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

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Fri Oct 9 00:52:04 PDT 2015

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 at semihalf.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?


Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering

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