Commit 6ee60246 authored by Alexandre Bailon's avatar Alexandre Bailon Committed by Vinod Koul
Browse files

dmaengine: cppi41: Remove usbss_mem 



In order to make CPPI 4.1 DMA driver more generic, accesses to USBSS
have been removed. So it is not required anymore to map the "glue"
register's.
Remove usbss_mem.

Signed-off-by: default avatarAlexandre Bailon <abailon@baylibre.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent c1ae3cfa

drivers/dma/cppi41.c

+10 −8
Original line number Diff line number Diff line
@@ -131,7 +131,6 @@ struct cppi41_dd { 
	u32 first_td_desc;

	struct cppi41_channel *chan_busy[ALLOC_DECS_NUM];



	void __iomem *usbss_mem;

	void __iomem *ctrl_mem;

	void __iomem *sched_mem;

	void __iomem *qmgr_mem;
@@ -995,6 +994,7 @@ static int cppi41_dma_probe(struct platform_device *pdev) 
	struct cppi41_dd *cdd;

	struct device *dev = &pdev->dev;

	const struct cppi_glue_infos *glue_info;

	int index;

	int irq;

	int ret;
@@ -1021,16 +1021,20 @@ static int cppi41_dma_probe(struct platform_device *pdev) 
	INIT_LIST_HEAD(&cdd->ddev.channels);

	cpp41_dma_info.dma_cap = cdd->ddev.cap_mask;



	cdd->usbss_mem = of_iomap(dev->of_node, 0);

	cdd->ctrl_mem = of_iomap(dev->of_node, 1);

	cdd->sched_mem = of_iomap(dev->of_node, 2);

	cdd->qmgr_mem = of_iomap(dev->of_node, 3);

	index = of_property_match_string(dev->of_node,

					 "reg-names", "controller");

	if (index < 0)

		return index;



	cdd->ctrl_mem = of_iomap(dev->of_node, index);

	cdd->sched_mem = of_iomap(dev->of_node, index + 1);

	cdd->qmgr_mem = of_iomap(dev->of_node, index + 2);

	spin_lock_init(&cdd->lock);

	INIT_LIST_HEAD(&cdd->pending);



	platform_set_drvdata(pdev, cdd);



	if (!cdd->usbss_mem || !cdd->ctrl_mem || !cdd->sched_mem ||

	if (!cdd->ctrl_mem || !cdd->sched_mem ||

			!cdd->qmgr_mem)

		return -ENXIO;
@@ -1090,7 +1094,6 @@ err_init_cppi: 
err_get_sync:

	pm_runtime_put_sync(dev);

	pm_runtime_disable(dev);

	iounmap(cdd->usbss_mem);

	iounmap(cdd->ctrl_mem);

	iounmap(cdd->sched_mem);

	iounmap(cdd->qmgr_mem);
@@ -1112,7 +1115,6 @@ static int cppi41_dma_remove(struct platform_device *pdev) 
	devm_free_irq(&pdev->dev, cdd->irq, cdd);

	cleanup_chans(cdd);

	deinit_cppi41(&pdev->dev, cdd);

	iounmap(cdd->usbss_mem);

	iounmap(cdd->ctrl_mem);

	iounmap(cdd->sched_mem);

	iounmap(cdd->qmgr_mem);

CRA Git | Maintained and supported by SUSTech CRA and CCSE