dmaengine: cppi41: Prepare to add PM runtime support
Let's just move code from cppi41_dma_issue_pending() to
push_desc_queue() as that's the only call to push_desc_queue().
We want to do this for PM runtime as we need to call push_desc_queue()
also for pending queued transfers from PM runtime resume.
No functional changes, just moves code around.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 4b23174..cf0415e 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -386,21 +386,6 @@
u32 desc_phys;
u32 reg;
- desc_phys = lower_32_bits(c->desc_phys);
- desc_num = (desc_phys - cdd->descs_phys) / sizeof(struct cppi41_desc);
- WARN_ON(cdd->chan_busy[desc_num]);
- cdd->chan_busy[desc_num] = c;
-
- reg = (sizeof(struct cppi41_desc) - 24) / 4;
- reg |= desc_phys;
- cppi_writel(reg, cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num));
-}
-
-static void cppi41_dma_issue_pending(struct dma_chan *chan)
-{
- struct cppi41_channel *c = to_cpp41_chan(chan);
- u32 reg;
-
c->residue = 0;
reg = GCR_CHAN_ENABLE;
@@ -418,6 +403,21 @@
* before starting the dma engine.
*/
__iowmb();
+
+ desc_phys = lower_32_bits(c->desc_phys);
+ desc_num = (desc_phys - cdd->descs_phys) / sizeof(struct cppi41_desc);
+ WARN_ON(cdd->chan_busy[desc_num]);
+ cdd->chan_busy[desc_num] = c;
+
+ reg = (sizeof(struct cppi41_desc) - 24) / 4;
+ reg |= desc_phys;
+ cppi_writel(reg, cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num));
+}
+
+static void cppi41_dma_issue_pending(struct dma_chan *chan)
+{
+ struct cppi41_channel *c = to_cpp41_chan(chan);
+
push_desc_queue(c);
}