[PATCH v2 12/30] 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@xxxxxx>
---
 arch/blackfin/mach-bf527/boards/ad7160eval.c |    2 +-
 arch/blackfin/mach-bf527/boards/cm_bf527.c   |    2 +-
 arch/blackfin/mach-bf527/boards/ezbrd.c      |    2 +-
 arch/blackfin/mach-bf527/boards/ezkit.c      |    2 +-
 arch/blackfin/mach-bf527/boards/tll6527m.c   |    2 +-
 arch/blackfin/mach-bf548/boards/cm_bf548.c   |    2 +-
 arch/blackfin/mach-bf548/boards/ezkit.c      |    2 +-
 drivers/usb/musb/Makefile                    |    4 +-
 drivers/usb/musb/blackfin.c                  |   87 ++++++++++++++++++++++++++
 9 files changed, 95 insertions(+), 10 deletions(-)

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 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,
diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c
index 0844a2c..e254126 100644
--- a/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -118,7 +118,7 @@ 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,
diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c
index 747201b..a9ea294 100644
--- a/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -82,7 +82,7 @@ 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,
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 4c2d1a1..3075112 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -122,7 +122,7 @@ 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,
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 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,
diff --git a/arch/blackfin/mach-bf548/boards/cm_bf548.c b/arch/blackfin/mach-bf548/boards/cm_bf548.c
index b734ec7..64a826d 100644
--- a/arch/blackfin/mach-bf548/boards/cm_bf548.c
+++ b/arch/blackfin/mach-bf548/boards/cm_bf548.c
@@ -518,7 +518,7 @@ 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,
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index d222864..06180a1 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -623,7 +623,7 @@ 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,
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-$(CONFIG_USB_MUSB_HDRC_HCD)		+= musb_virthub.o musb_host.o
 musb_hdrc-$(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 ...
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 00ce38b..d01161e 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>
 
@@ -444,3 +446,88 @@ 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 err2;
+	}
+
+	return 0;
+
+err2:
+	platform_device_put(musb);
+
+err1:
+	platform_device_del(musb);
+
+err0:
+	return ret;
+}
+
+static int __exit bfin_remove(struct platform_device *pdev)
+{
+	struct platform_device		*musb = platform_get_drvdata(pdev);
+
+	platform_device_put(musb);
+	platform_device_del(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@xxxxxxxxxx>");
+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);
-- 
1.7.3.2.343.g7d43d

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