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authorFelipe Balbi <balbi@ti.com>2010-12-02 09:13:54 +0200
committerFelipe Balbi <balbi@ti.com>2010-12-10 10:21:14 +0200
commit18688fbeb09665725c842291bbadd88295a359e1 (patch)
treecf0b0af2dfe431a4895dba8198af1c4e49ad55b6 /drivers/usb
parentce40c5767a0ea1e77ca5d0b73269cb86301a35cf (diff)
downloadop-kernel-dev-18688fbeb09665725c842291bbadd88295a359e1.zip
op-kernel-dev-18688fbeb09665725c842291bbadd88295a359e1.tar.gz
usb: musb: split tusb6010 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: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/musb/Makefile2
-rw-r--r--drivers/usb/musb/tusb6010.c83
2 files changed, 84 insertions, 1 deletions
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
index a48c86d..8e0c9ad 100644
--- a/drivers/usb/musb/Makefile
+++ b/drivers/usb/musb/Makefile
@@ -16,11 +16,11 @@ musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o
musb_hdrc-$(CONFIG_USB_MUSB_DAVINCI) += davinci.o
musb_hdrc-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o
-musb_hdrc-$(CONFIG_USB_MUSB_TUSB6010) += tusb6010.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
# 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/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 60abd52..a8e26a0 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -21,6 +21,7 @@
#include <linux/usb.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
#include "musb_core.h"
@@ -1185,3 +1186,85 @@ const struct musb_platform_ops musb_ops = {
.vbus_status = tusb_musb_vbus_status,
.set_vbus = tusb_musb_set_vbus,
};
+
+static u64 tusb_dmamask = DMA_BIT_MASK(32);
+
+static int __init tusb_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 = &tusb_dmamask;
+ musb->dev.coherent_dma_mask = tusb_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 tusb_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 tusb_driver = {
+ .remove = __exit_p(tusb_remove),
+ .driver = {
+ .name = "musb-tusb",
+ },
+};
+
+MODULE_DESCRIPTION("TUSB6010 MUSB Glue Layer");
+MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
+MODULE_LICENSE("GPL v2");
+
+static int __init tusb_init(void)
+{
+ return platform_driver_probe(&tusb_driver, tusb_probe);
+}
+subsys_initcall(tusb_init);
+
+static void __exit tusb_exit(void)
+{
+ platform_driver_unregister(&tusb_driver);
+}
+module_exit(tusb_exit);
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