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usb: musb: split blackfin to its own platform_driver

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

Later patches will come to split power management
code from musb_core and move it completely to HW
glue layer.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2010-12-02 09:21:05 +02:00
parent 8ceae51ed5
commit 9cb0308eec
9 changed files with 92 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/blackfin/mach-bf527/boards/ad7160eval.c
View file

@ -83,7 +83,7 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = ~(u32)0;
static struct platform_device musb_device = {
.name = "musb-hdrc",
.name = "musb-blackfin",
.id = 0,
.dev = {
.dma_mask = &musb_dmamask,

2
arch/blackfin/mach-bf527/boards/cm_bf527.c
View file

@ -120,7 +120,7 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = ~(u32)0;
static struct platform_device musb_device = {
.name = "musb-hdrc",
.name = "musb-blackfin",
.id = 0,
.dev = {
.dma_mask = &musb_dmamask,

2
arch/blackfin/mach-bf527/boards/ezbrd.c
View file

@ -84,7 +84,7 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = ~(u32)0;
static struct platform_device musb_device = {
.name = "musb-hdrc",
.name = "musb-blackfin",
.id = 0,
.dev = {
.dma_mask = &musb_dmamask,

2
arch/blackfin/mach-bf527/boards/ezkit.c
View file

@ -124,7 +124,7 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = ~(u32)0;
static struct platform_device musb_device = {
.name = "musb-hdrc",
.name = "musb-blackfin",
.id = 0,
.dev = {
.dma_mask = &musb_dmamask,

2
arch/blackfin/mach-bf527/boards/tll6527m.c
View file

@ -91,7 +91,7 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = ~(u32)0;
static struct platform_device musb_device = {
.name = "musb-hdrc",
.name = "musb-blackfin",
.id = 0,
.dev = {
.dma_mask = &musb_dmamask,

2
arch/blackfin/mach-bf548/boards/cm_bf548.c
View file

@ -520,7 +520,7 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = ~(u32)0;
static struct platform_device musb_device = {
.name = "musb-hdrc",
.name = "musb-blackfin",
.id = 0,
.dev = {
.dma_mask = &musb_dmamask,

2
arch/blackfin/mach-bf548/boards/ezkit.c
View file

@ -625,7 +625,7 @@ static struct musb_hdrc_platform_data musb_plat = {
static u64 musb_dmamask = ~(u32)0;
static struct platform_device musb_device = {
.name = "musb-hdrc",
.name = "musb-blackfin",
.id = 0,
.dev = {
.dma_mask = &musb_dmamask,

4
drivers/usb/musb/Makefile
View file

@ -13,14 +13,12 @@ musb_hdrc-$(CONFIG_USB_MUSB_HDRC_HCD) += musb_virthub.o musb_host.o
musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o
# Hardware Glue Layer
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-$(CONFIG_USB_MUSB_DAVINCI) += davinci.o
obj-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o
obj-$(CONFIG_USB_MUSB_BLACKFIN) += blackfin.o
# the kconfig must guarantee that only one of the
# possible I/O schemes will be enabled at a time ...

84
drivers/usb/musb/blackfin.c
View file

@ -15,6 +15,8 @@
#include <linux/list.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <asm/cacheflush.h>
@ -442,3 +444,85 @@ const struct musb_platform_ops musb_ops = {
.vbus_status = bfin_musb_vbus_status,
.set_vbus = bfin_musb_set_vbus,
};
static u64 bfin_dmamask = DMA_BIT_MASK(32);
static int __init bfin_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 = &bfin_dmamask;
musb->dev.coherent_dma_mask = bfin_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 bfin_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 bfin_driver = {
.remove = __exit_p(bfin_remove),
.driver = {
.name = "musb-bfin",
},
};
MODULE_DESCRIPTION("Blackfin MUSB Glue Layer");
MODULE_AUTHOR("Bryan Wy <cooloney@kernel.org>");
MODULE_LICENSE("GPL v2");
static int __init bfin_init(void)
{
return platform_driver_probe(&bfin_driver, bfin_probe);
}
subsys_initcall(bfin_init);
static void __exit bfin_exit(void)
{
platform_driver_unregister(&bfin_driver);
}
module_exit(bfin_exit);