DMA will not stop when clearing enable bit till all transaction
is done. The bug is exposed in audio playback because ring DMA
chain never stop. Force hardware to stop with setting FORCE bit.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Align src and dst width to fix data alignment issue as
trailing single transaction that does not fill a full
burst require identical src/dst data width.
Burst length limitation can be addressed well too.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
At device removal, tasklets are not disabled and irqs are still enabled, so
free the irq explicitly on device removal
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Add ZTE ZX296702 dma controller support. Only
device tree probe is support currently.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Jun Nie