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Commit d6aafa2b authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Felipe Balbi
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dma: cpp41: enable pm_runtime during init 



With enabled pm_runtime in the kernel the device won't work because it
is not "on" during the probe function. This patch enables the device via
pm_runtime on probe so it remains activated.

Acked-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 2ae847a1

drivers/dma/cppi41.c

+11 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
#include <linux/dmapool.h>

#include <linux/interrupt.h>

#include <linux/of_address.h>

#include <linux/pm_runtime.h>

#include "dmaengine.h"



#define DESC_TYPE	27
@@ -960,6 +961,11 @@ static int cppi41_dma_probe(struct platform_device *pdev) 
		goto err_remap;

	}



	pm_runtime_enable(&pdev->dev);

	ret = pm_runtime_get_sync(&pdev->dev);

	if (ret)

		goto err_get_sync;



	cdd->queues_rx = glue_info->queues_rx;

	cdd->queues_tx = glue_info->queues_tx;

	cdd->td_queue = glue_info->td_queue;
@@ -1005,6 +1011,9 @@ static int cppi41_dma_probe(struct platform_device *pdev) 
err_chans:

	deinit_cpii41(pdev, cdd);

err_init_cppi:

	pm_runtime_put(&pdev->dev);

err_get_sync:

	pm_runtime_disable(&pdev->dev);

	iounmap(cdd->usbss_mem);

	iounmap(cdd->ctrl_mem);

	iounmap(cdd->sched_mem);
@@ -1029,6 +1038,8 @@ static int cppi41_dma_remove(struct platform_device *pdev) 
	iounmap(cdd->ctrl_mem);

	iounmap(cdd->sched_mem);

	iounmap(cdd->qmgr_mem);

	pm_runtime_put(&pdev->dev);

	pm_runtime_disable(&pdev->dev);

	kfree(cdd);

	return 0;

}