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Commit 670fc2a8 authored by Tony Lindgren's avatar Tony Lindgren Committed by Vinod Koul
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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: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 29b4817d

drivers/dma/cppi41.c

+15 −15
Original line number Diff line number Diff line
@@ -386,21 +386,6 @@ static void push_desc_queue(struct cppi41_channel *c) 
	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 @@ static void cppi41_dma_issue_pending(struct dma_chan *chan) 
	 * 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);

}