1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 9d31d5eb95c1..8bcb15fb959d 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -690,8 +690,12 @@ int dma_async_device_register(struct dma_device *device)
                 !device->device_prep_dma_memset);
         BUG_ON(dma_has_cap(DMA_INTERRUPT, device->cap_mask) &&
                 !device->device_prep_dma_interrupt);
+        BUG_ON(dma_has_cap(DMA_SG, device->cap_mask) &&
+                !device->device_prep_dma_sg);
         BUG_ON(dma_has_cap(DMA_SLAVE, device->cap_mask) &&
                 !device->device_prep_slave_sg);
+        BUG_ON(dma_has_cap(DMA_CYCLIC, device->cap_mask) &&
+                !device->device_prep_dma_cyclic);
         BUG_ON(dma_has_cap(DMA_SLAVE, device->cap_mask) &&
                 !device->device_control);
 
@@ -702,7 +706,7 @@ int dma_async_device_register(struct dma_device *device)
         BUG_ON(!device->dev);
 
         /* note: this only matters in the
-         * CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH=y case
+         * CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH=n case
          */
         if (device_has_all_tx_types(device))
                 dma_cap_set(DMA_ASYNC_TX, device->cap_mask);
@@ -976,7 +980,7 @@ void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx,
         struct dma_chan *chan)
 {
         tx->chan = chan;
-        #ifndef CONFIG_ASYNC_TX_DISABLE_CHANNEL_SWITCH
+        #ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH
         spin_lock_init(&tx->lock);
         #endif
 }