Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine updates from Vinod Koul:
 "Nothing exciting this time, odd fixes in a bunch of drivers"

* 'next' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: at_hdmac: take maxburst from slave configuration
  dmaengine: at_hdmac: remove ATC_DEFAULT_CTRLA constant
  dmaengine: at_hdmac: remove some at_dma_slave comments
  dma: imx-sdma: make channel0 operations atomic
  dmaengine: Fixup dmaengine_prep_slave_single() to be actually useful
  dmaengine: Use dma_sg_len(sg) instead of sg->length
  dmaengine: Use sg_dma_address instead of sg_phys
  DMA: PL330: Remove duplicate header file inclusion
  dma: imx-sdma: keep the callbacks invoked in the tasklet
  dmaengine: dw_dma: add Device Tree probing capability
  dmaengine: dw_dmac: Add clk_{un}prepare() support
  dma/amba-pl08x: add support for the Nomadik variant
  dma/amba-pl08x: check for terminal count status only

2 files changed, 7 insertions, 2 deletions

diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h
index e64ce2cfee99..02549017212a 100644
--- a/include/linux/amba/pl08x.h
+++ b/include/linux/amba/pl08x.h
@@ -92,6 +92,8 @@ struct pl08x_bus_data {
  * right now
  * @serving: the virtual channel currently being served by this physical
  * channel
+ * @locked: channel unavailable for the system, e.g. dedicated to secure
+ * world
  */
 struct pl08x_phy_chan {
         unsigned int id;
@@ -99,6 +101,7 @@ struct pl08x_phy_chan {
         spinlock_t lock;
         int signal;
         struct pl08x_dma_chan *serving;
+        bool locked;
 };
 
 /**
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index f9a2e5e67a54..d3fec584e8c3 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -615,11 +615,13 @@ static inline int dmaengine_slave_config(struct dma_chan *chan,
 }
 
 static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single(
-        struct dma_chan *chan, void *buf, size_t len,
+        struct dma_chan *chan, dma_addr_t buf, size_t len,
         enum dma_transfer_direction dir, unsigned long flags)
 {
         struct scatterlist sg;
-        sg_init_one(&sg, buf, len);
+        sg_init_table(&sg, 1);
+        sg_dma_address(&sg) = buf;
+        sg_dma_len(&sg) = len;
 
         return chan->device->device_prep_slave_sg(chan, &sg, 1,
                                                   dir, flags, NULL);