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Thierry Reding authored
The mailbox framework supports blocking transfers via completions for clients that can sleep. In order to support blocking transfers in cases where the transmission is not permitted to sleep, add a new ->flush() callback that controller drivers can implement to busy loop until the transmission has been completed. A new mbox_flush() function can be called by mailbox consumers in atomic context to make sure a transfer has completed. Signed-off-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
Jassi Brar <jaswinder.singh@linaro.org>
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