greybus: sdio: avoid extra memory operation at data transfer

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Right now greybus sdio uses the greybus operation_sync to transfer data,
this will imply an extra memcpy at greybus core that we can avoid.

Also with this change we remove the need for an extra buffer to store
intermediate copy.

So, let us create the operation and do the memory operations in the sdio
driver.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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Rui Miguel Silva 2016-06-21 16:56:16 +01:00 • committed by Greg Kroah-Hartman

parent 0698be0281

commit e3b090ea95

1 changed files with 45 additions and 35 deletions

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drivers/staging/greybus/sdio.c

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