Add software queue support to improve the performance.
Signed-off-by: NBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: NBaolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/f629b32943aae9e30ffa17acf4af06c270417001.1581478569.git.baolin.wang7@gmail.comSigned-off-by: NUlf Hansson <ulf.hansson@linaro.org>