dmaengine: edma: Add support for DMA filter mapping to slave devices

Add support for providing device to filter_fn mapping so client drivers
can switch to use the dma_request_chan() API.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h
index e2878baeb90e..105700e62ea1 100644
--- a/include/linux/platform_data/edma.h
+++ b/include/linux/platform_data/edma.h
@@ -53,12 +53,16 @@ enum dma_event_q {
 #define EDMA_CTLR(i)                    ((i) >> 16)
 #define EDMA_CHAN_SLOT(i)               ((i) & 0xffff)
 
+#define EDMA_FILTER_PARAM(ctlr, chan)   ((int[]) { EDMA_CTLR_CHAN(ctlr, chan) })
+
 struct edma_rsv_info {
 
         const s16       (*rsv_chans)[2];
         const s16       (*rsv_slots)[2];
 };
 
+struct dma_slave_map;
+
 /* platform_data for EDMA driver */
 struct edma_soc_info {
         /*
@@ -76,6 +80,9 @@ struct edma_soc_info {
 
         s8      (*queue_priority_mapping)[2];
         const s16       (*xbar_chans)[2];
+
+        const struct dma_slave_map *slave_map;
+        int slavecnt;
 };
 
 #endif