Merge tag 'dmaengine-fix-5.6-rc5' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "A bunch of driver fixes:

   - Doc updates to clean warnings for dmaengine

   - Fixes for newly added Intel idxd driver

   - More fixes for newly added TI k3-udma driver

   - Fixes for IMX and Tegra drivers"

* tag 'dmaengine-fix-5.6-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: imx-sdma: Fix the event id check to include RX event for UART6
  dmaengine: tegra-apb: Prevent race conditions of tasklet vs free list
  dmaengine: tegra-apb: Fix use-after-free
  dmaengine: imx-sdma: fix context cache
  dmaengine: idxd: wq size configuration needs to check global max size
  dmaengine: idxd: sysfs input of wq incorrect wq type should return error
  dmaengine: coh901318: Fix a double lock bug in dma_tc_handle()
  dmaengine: idxd: correct reserved token calculation
  dmaengine: ti: k3-udma: Fix terminated transfer handling
  dmaengine: ti: k3-udma: Use the channel direction in pause/resume functions
  dmaengine: ti: k3-udma: Use the TR counter helper for slave_sg and cyclic
  dmaengine: ti: k3-udma: Move the TR counter calculation to helper function
  dmaengine: ti: k3-udma: Workaround for RX teardown with stale data in peer
  dmaengine: ti: k3-udma: Use ktime/usleep_range based TX completion check
  dmaengine: idxd: Fix error handling in idxd_wq_cdev_dev_setup()
  dmaengine: doc: fix warnings/issues of client.rst
  dmaengine: idxd: fix runaway module ref count on device driver bind

Documentation/driver-api/dmaengine/client.rst

@@ -151,8 +151,8 @@ The details of these operations are:
      Note that callbacks will always be invoked from the DMA
      engines tasklet, never from interrupt context.
 
-Optional: per descriptor metadata
----------------------------------
+  **Optional: per descriptor metadata**
+
   DMAengine provides two ways for metadata support.
 
   DESC_METADATA_CLIENT
@@ -199,12 +199,15 @@ Optional: per descriptor metadata
   DESC_METADATA_CLIENT
 
     - DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
+
       1. prepare the descriptor (dmaengine_prep_*)
          construct the metadata in the client's buffer
       2. use dmaengine_desc_attach_metadata() to attach the buffer to the
          descriptor
       3. submit the transfer
+
     - DMA_DEV_TO_MEM:
+
       1. prepare the descriptor (dmaengine_prep_*)
       2. use dmaengine_desc_attach_metadata() to attach the buffer to the
          descriptor
@@ -215,6 +218,7 @@ Optional: per descriptor metadata
   DESC_METADATA_ENGINE
 
     - DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
+
       1. prepare the descriptor (dmaengine_prep_*)
       2. use dmaengine_desc_get_metadata_ptr() to get the pointer to the
          engine's metadata area
@@ -222,7 +226,9 @@ Optional: per descriptor metadata
       4. use dmaengine_desc_set_metadata_len()  to tell the DMA engine the
          amount of data the client has placed into the metadata buffer
       5. submit the transfer
+
     - DMA_DEV_TO_MEM:
+
       1. prepare the descriptor (dmaengine_prep_*)
       2. submit the transfer
       3. on transfer completion, use dmaengine_desc_get_metadata_ptr() to get
@@ -278,8 +284,8 @@ Optional: per descriptor metadata
 
       void dma_async_issue_pending(struct dma_chan *chan);
 
-Further APIs:
--------------
+Further APIs
+------------
 
 1. Terminate APIs