dmaengine: k3dma: Add support for dma-channel-mask

Add dma-channel-mask as a property for k3dma, it defines
available dma channels which a non-secure mode driver can use.

One sample usage of this is in Hi3660 SoC. DMA channel 0 is
reserved to lpm3, which is a coprocessor for power management. So
as a result, any request in kernel (which runs on main processor
and in non-secure mode) should start from at least channel 1.

Cc: Dan Williams <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: Tanglei Han <[email protected]>
Cc: Zhuangluan Su <[email protected]>
Cc: Ryan Grachek <[email protected]>
Cc: Manivannan Sadhasivam <[email protected]>
Cc: Guodong Xu <[email protected]>
Cc: [email protected]
Signed-off-by: Li Yu <[email protected]>
[jstultz: Reworked to use a channel mask]
Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>

0 files changed, 0 insertions, 0 deletions