usb: chipidea: add support for roles

Add some generic code for roles and implement simple role switching
based on ID pin state and/or a sysfs file. At this, we also rename
the device to ci_hdrc, which is what it is.

The "manual" switch is made into a sysfs file and not debugfs, because
it might be useful even in non-debug context. For some boards, like
sheevaplug, it seems to be the only way to switch roles without modifying
the hardware, since the ID pin is always grounded.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c
index 84e8ab8d4f4..f190140cf61 100644
--- a/drivers/usb/chipidea/ci13xxx_pci.c
+++ b/drivers/usb/chipidea/ci13xxx_pci.c
@@ -69,9 +69,9 @@ static int __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
         pci_set_master(pdev);
         pci_try_set_mwi(pdev);
 
-        plat_ci = platform_device_alloc("ci_udc", -1);
+        plat_ci = platform_device_alloc("ci_hdrc", -1);
         if (!plat_ci) {
-                dev_err(&pdev->dev, "can't allocate ci_udc platform device\n");
+                dev_err(&pdev->dev, "can't allocate ci_hdrc platform device\n");
                 retval = -ENOMEM;
                 goto disable_device;
         }