usb: ehci-mx6: Use common code to extract dr_mode
There exists code in drivers/common/common.c to read the dr_mode
from the device tree. This patch converts this driver to use that
function to initialize the driver.
Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index 9483947..33abfea 100644
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -18,6 +18,7 @@
#include <dm.h>
#include <asm/mach-types.h>
#include <power/regulator.h>
+#include <linux/usb/otg.h>
#include "ehci.h"
@@ -483,23 +484,23 @@
static int ehci_usb_ofdata_to_platdata(struct udevice *dev)
{
struct usb_platdata *plat = dev_get_platdata(dev);
- const char *mode;
+ enum usb_dr_mode dr_mode;
- mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "dr_mode", NULL);
- if (mode) {
- if (strcmp(mode, "peripheral") == 0)
- plat->init_type = USB_INIT_DEVICE;
- else if (strcmp(mode, "host") == 0)
- plat->init_type = USB_INIT_HOST;
- else if (strcmp(mode, "otg") == 0)
- return ehci_usb_phy_mode(dev);
- else
- return -EINVAL;
+ dr_mode = usb_get_dr_mode(dev_of_offset(dev));
- return 0;
- }
+ switch (dr_mode) {
+ case USB_DR_MODE_HOST:
+ plat->init_type = USB_INIT_HOST;
+ break;
+ case USB_DR_MODE_PERIPHERAL:
+ plat->init_type = USB_INIT_DEVICE;
+ break;
+ case USB_DR_MODE_OTG:
+ case USB_DR_MODE_UNKNOWN:
+ return ehci_usb_phy_mode(dev);
+ };
- return ehci_usb_phy_mode(dev);
+ return 0;
}
static int ehci_usb_probe(struct udevice *dev)