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Commit 73b089b0 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: musb: split davinci to its own platform_driver 



Just adding its own platform_driver, not really
using it yet.

When all HW glue layers are converted, more patches
will come to split power management code from musb_core
and move it completely to HW glue layer.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 18688fbe

arch/arm/mach-davinci/usb.c

+1 −1
Original line number Diff line number Diff line
@@ -76,7 +76,7 @@ static struct resource usb_resources[] = { 
static u64 usb_dmamask = DMA_BIT_MASK(32);



static struct platform_device usb_dev = {

	.name           = "musb-hdrc",

	.name           = "musb-davinci",

	.id             = -1,

	.dev = {

		.platform_data		= &usb_data,

drivers/usb/musb/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -14,13 +14,13 @@ musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o 


# Hardware Glue Layer



musb_hdrc-$(CONFIG_USB_MUSB_DAVINCI)		+= davinci.o

musb_hdrc-$(CONFIG_USB_MUSB_DA8XX)		+= da8xx.o

musb_hdrc-$(CONFIG_USB_MUSB_BLACKFIN)		+= blackfin.o



obj-$(CONFIG_USB_MUSB_OMAP2PLUS)		+= omap2430.o

obj-$(CONFIG_USB_MUSB_AM35X)			+= am35x.o

obj-$(CONFIG_USB_MUSB_TUSB6010)			+= tusb6010.o

obj-$(CONFIG_USB_MUSB_DAVINCI)			+= davinci.o



# the kconfig must guarantee that only one of the

# possible I/O schemes will be enabled at a time ...

drivers/usb/musb/davinci.c

+84 −0
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ 
#include <linux/clk.h>

#include <linux/io.h>

#include <linux/gpio.h>

#include <linux/platform_device.h>

#include <linux/dma-mapping.h>



#include <mach/hardware.h>

#include <mach/memory.h>
@@ -514,3 +516,85 @@ const struct musb_platform_ops musb_ops = { 


	.set_vbus	= davinci_musb_set_vbus,

};



static u64 davinci_dmamask = DMA_BIT_MASK(32);



static int __init davinci_probe(struct platform_device *pdev)

{

	struct musb_hdrc_platform_data	*pdata = pdev->dev.platform_data;

	struct platform_device		*musb;



	int				ret = -ENOMEM;



	musb = platform_device_alloc("musb-hdrc", -1);

	if (!musb) {

		dev_err(&pdev->dev, "failed to allocate musb device\n");

		goto err0;

	}



	musb->dev.parent		= &pdev->dev;

	musb->dev.dma_mask		= &davinci_dmamask;

	musb->dev.coherent_dma_mask	= davinci_dmamask;



	platform_set_drvdata(pdev, musb);



	ret = platform_device_add_resources(musb, pdev->resource,

			pdev->num_resources);

	if (ret) {

		dev_err(&pdev->dev, "failed to add resources\n");

		goto err1;

	}



	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));

	if (ret) {

		dev_err(&pdev->dev, "failed to add platform_data\n");

		goto err1;

	}



	ret = platform_device_add(musb);

	if (ret) {

		dev_err(&pdev->dev, "failed to register musb device\n");

		goto err1;

	}



	return 0;



err1:

	platform_device_put(musb);



err0:

	return ret;

}



static int __exit davinci_remove(struct platform_device *pdev)

{

	struct platform_device		*musb = platform_get_drvdata(pdev);



	platform_device_del(musb);

	platform_device_put(musb);



	return 0;

}



static struct platform_driver davinci_driver = {

	.remove		= __exit_p(davinci_remove),

	.driver		= {

		.name	= "musb-davinci",

	},

};



MODULE_DESCRIPTION("DaVinci MUSB Glue Layer");

MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");

MODULE_LICENSE("GPL v2");



static int __init davinci_init(void)

{

	return platform_driver_probe(&davinci_driver, davinci_probe);

}

subsys_initcall(davinci_init);



static void __exit davinci_exit(void)

{

	platform_driver_unregister(&davinci_driver);

}

module_exit(davinci_exit);