dma40: cyclic xfer support

Support cyclic transfers, which are useful for ALSA drivers.

Acked-by: Per Forlin <per.forlin@stericsson.com>
Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h
index 59e72f0cc901..195ee65ee7f3 100644
--- a/drivers/dma/ste_dma40_ll.h
+++ b/drivers/dma/ste_dma40_ll.h
@@ -296,6 +296,8 @@ struct d40_def_lcsp {
 enum d40_lli_flags {
         LLI_ADDR_INC    = 1 << 0,
         LLI_TERM_INT    = 1 << 1,
+        LLI_CYCLIC      = 1 << 2,
+        LLI_LAST_LINK   = 1 << 3,
 };
 
 void d40_phy_cfg(struct stedma40_chan_cfg *cfg,
@@ -314,7 +316,8 @@ int d40_phy_sg_to_lli(struct scatterlist *sg,
                       dma_addr_t lli_phys,
                       u32 reg_cfg,
                       struct stedma40_half_channel_info *info,
-                      struct stedma40_half_channel_info *otherinfo);
+                      struct stedma40_half_channel_info *otherinfo,
+                      unsigned long flags);
 
 /* Logical channels */
 
@@ -328,11 +331,11 @@ int d40_log_sg_to_lli(struct scatterlist *sg,
 void d40_log_lli_lcpa_write(struct d40_log_lli_full *lcpa,
                             struct d40_log_lli *lli_dst,
                             struct d40_log_lli *lli_src,
-                            int next);
+                            int next, unsigned int flags);
 
 void d40_log_lli_lcla_write(struct d40_log_lli *lcla,
                             struct d40_log_lli *lli_dst,
                             struct d40_log_lli *lli_src,
-                            int next);
+                            int next, unsigned int flags);
 
 #endif /* STE_DMA40_LLI_H */