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Commit 7f6283ed authored by Tony Lindgren's avatar Tony Lindgren Committed by Felipe Balbi
Browse files

usb: musb: Set up function pointers for DMA 



Set up function pointers for DMA so get closer to
being able to build in all the DMA engines.

Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent f8e9f34f

drivers/usb/musb/am35x.c

+4 −0
Original line number Diff line number Diff line
@@ -443,6 +443,10 @@ static const struct musb_platform_ops am35x_ops = { 
	.exit		= am35x_musb_exit,



	.read_fifo	= am35x_read_fifo,

#ifdef CONFIG_USB_INVENTRA_DMA

	.dma_init	= musbhs_dma_controller_create,

	.dma_exit	= musbhs_dma_controller_destroy,

#endif

	.enable		= am35x_musb_enable,

	.disable	= am35x_musb_disable,

drivers/usb/musb/blackfin.c

+4 −0
Original line number Diff line number Diff line
@@ -478,6 +478,10 @@ static const struct musb_platform_ops bfin_ops = { 
	.fifo_mode	= 2,

	.read_fifo	= bfin_read_fifo,

	.write_fifo	= bfin_write_fifo,

#ifdef CONFIG_USB_INVENTRA_DMA

	.dma_init	= musbhs_dma_controller_create,

	.dma_exit	= musbhs_dma_controller_destroy,

#endif

	.enable		= bfin_musb_enable,

	.disable	= bfin_musb_disable,

drivers/usb/musb/cppi_dma.c

+6 −3
Original line number Diff line number Diff line
@@ -1297,7 +1297,8 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id) 
EXPORT_SYMBOL_GPL(cppi_interrupt);



/* Instantiate a software object representing a DMA controller. */

struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mregs)

struct dma_controller *

cppi_dma_controller_create(struct musb *musb, void __iomem *mregs)

{

	struct cppi		*controller;

	struct device		*dev = musb->controller;
@@ -1334,7 +1335,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr 
	if (irq > 0) {

		if (request_irq(irq, cppi_interrupt, 0, "cppi-dma", musb)) {

			dev_err(dev, "request_irq %d failed!\n", irq);

			dma_controller_destroy(&controller->controller);

			musb_dma_controller_destroy(&controller->controller);

			return NULL;

		}

		controller->irq = irq;
@@ -1343,11 +1344,12 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr 
	cppi_controller_start(controller);

	return &controller->controller;

}

EXPORT_SYMBOL_GPL(cppi_dma_controller_create);



/*

 *  Destroy a previously-instantiated DMA controller.

 */

void dma_controller_destroy(struct dma_controller *c)

void cppi_dma_controller_destroy(struct dma_controller *c)

{

	struct cppi	*cppi;
@@ -1363,6 +1365,7 @@ void dma_controller_destroy(struct dma_controller *c) 


	kfree(cppi);

}

EXPORT_SYMBOL_GPL(cppi_dma_controller_destroy);



/*

 * Context: controller irqlocked, endpoint selected

drivers/usb/musb/da8xx.c

+4 −0
Original line number Diff line number Diff line
@@ -463,6 +463,10 @@ static const struct musb_platform_ops da8xx_ops = { 
	.exit		= da8xx_musb_exit,



	.fifo_mode	= 2,

#ifdef CONFIG_USB_TI_CPPI_DMA

	.dma_init	= cppi_dma_controller_create,

	.dma_exit	= cppi_dma_controller_destroy,

#endif

	.enable		= da8xx_musb_enable,

	.disable	= da8xx_musb_disable,

drivers/usb/musb/davinci.c

+4 −0
Original line number Diff line number Diff line
@@ -495,6 +495,10 @@ static const struct musb_platform_ops davinci_ops = { 
	.init		= davinci_musb_init,

	.exit		= davinci_musb_exit,



#ifdef CONFIG_USB_TI_CPPI_DMA

	.dma_init	= cppi_dma_controller_create,

	.dma_exit	= cppi_dma_controller_destroy,

#endif

	.enable		= davinci_musb_enable,

	.disable	= davinci_musb_disable,