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SubjectRe: [PATCH] x86, olpc: Wait for last byte of EC command to be accepted

* Daniel Drake <dsd@laptop.org> wrote:

> From: Paul Fox <pgf@laptop.org>
>
> When executing EC commands, only waiting when there are still more bytes to
> write is usually fine. However, if the system suspends very quickly after
> a call to olpc_ec_cmd(), the last data byte may not yet be transferred to
> the EC, and the command will not complete.
>
> This solves a bug where the SCI wakeup mask was not correctly written
> when going into suspend.

What did that result in - a resume hang? (i.e. how urgent is this fix
- v3.1 material or v3.2 material?)

Thanks,

Ingo


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