usb: dwc3: pci: Intel Merrifield can be host

On Intel Edison board the OTG function is enabled, thus,
USB can switch to the host mode.

Allow that by changing dr_mode property to "otg" for Intel Merrifield.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 740ed56..5edd794 100644 (file)
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -107,6 +107,12 @@ static const struct property_entry dwc3_pci_intel_properties[] = {
        {}
 };
 
+static const struct property_entry dwc3_pci_mrfld_properties[] = {
+       PROPERTY_ENTRY_STRING("dr_mode", "otg"),
+       PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
+       {}
+};
+
 static const struct property_entry dwc3_pci_amd_properties[] = {
        PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
        PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf),
@@ -295,7 +301,7 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
          (kernel_ulong_t) &dwc3_pci_intel_properties, },
 
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MRFLD),
-         (kernel_ulong_t) &dwc3_pci_intel_properties, },
+         (kernel_ulong_t) &dwc3_pci_mrfld_properties, },
 
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTLP),
          (kernel_ulong_t) &dwc3_pci_intel_properties, },