usb: musb: split blackfin to its own platform_driver
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>
diff --git a/arch/blackfin/mach-bf527/boards/ad7160eval.c b/arch/blackfin/mach-bf527/boards/ad7160eval.c
index ec9f261..52295ff 100644
--- a/arch/blackfin/mach-bf527/boards/ad7160eval.c
+++ b/arch/blackfin/mach-bf527/boards/ad7160eval.c
@@ -83,7 +83,7 @@
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,
diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c
index a7627de..50533ed 100644
--- a/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -120,7 +120,7 @@
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,
diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c
index d1df634..d06177b 100644
--- a/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -84,7 +84,7 @@
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,
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 5983abd..35a88a5 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -124,7 +124,7 @@
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,
diff --git a/arch/blackfin/mach-bf527/boards/tll6527m.c b/arch/blackfin/mach-bf527/boards/tll6527m.c
index 284ec1f..130861b 100644
--- a/arch/blackfin/mach-bf527/boards/tll6527m.c
+++ b/arch/blackfin/mach-bf527/boards/tll6527m.c
@@ -91,7 +91,7 @@
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,
diff --git a/arch/blackfin/mach-bf548/boards/cm_bf548.c b/arch/blackfin/mach-bf548/boards/cm_bf548.c
index f523345..4c2ee67 100644
--- a/arch/blackfin/mach-bf548/boards/cm_bf548.c
+++ b/arch/blackfin/mach-bf548/boards/cm_bf548.c
@@ -520,7 +520,7 @@
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,
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index e2c851b..4f03fbc 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -625,7 +625,7 @@
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,
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
index d2a0129..61f46af 100644
--- a/drivers/usb/musb/Makefile
+++ b/drivers/usb/musb/Makefile
@@ -13,14 +13,12 @@
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 ...
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 9874501..b096820 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -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 @@
.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);