1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 0e035a8cf401..3ddfd1f6c23c 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -487,7 +487,11 @@ int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
         caps->directions = device->directions;
         caps->residue_granularity = device->residue_granularity;
 
-        caps->cmd_pause = !!device->device_pause;
+        /*
+         * Some devices implement only pause (e.g. to get residuum) but no
+         * resume. However cmd_pause is advertised as pause AND resume.
+         */
+        caps->cmd_pause = !!(device->device_pause && device->device_resume);
         caps->cmd_terminate = !!device->device_terminate_all;
 
         return 0;
@@ -571,11 +575,15 @@ struct dma_chan *dma_get_any_slave_channel(struct dma_device *device)
 
         chan = private_candidate(&mask, device, NULL, NULL);
         if (chan) {
+                dma_cap_set(DMA_PRIVATE, device->cap_mask);
+                device->privatecnt++;
                 err = dma_chan_get(chan);
                 if (err) {
                         pr_debug("%s: failed to get %s: (%d)\n",
                                 __func__, dma_chan_name(chan), err);
                         chan = NULL;
+                        if (--device->privatecnt == 0)
+                                dma_cap_clear(DMA_PRIVATE, device->cap_mask);
                 }
         }