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: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index e283b5a..bdf1940 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -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 @@
.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);