tree 28b553e4d6a37b0f6e14eb2ea2b8aede75e38f18
parent a291b7d5f600a068af1e2186ce590a9a39093ddb
author Robert Baldyga <r.baldyga@samsung.com> 1418212165 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1420842339 -0800

serial: samsung: add dma reqest/release functions

Add functions requesting and releasing RX and TX DMA channels. This
function are called only when "dmas" property in serial device-tree
node is defined.

Based on previous work of Sylwester Nawrocki and Lukasz Czerwinski.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>