USB: ohci: allow platform driver to specify the number of ports

This patch modifies the ohci platform driver to accept the num_ports
parameter to be set via platform_data. Setting the number of ports must be
done after the call to ohci_hcd_init().
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ohci-platform.c

@@ -31,6 +31,10 @@ static int ohci_platform_reset(struct usb_hcd *hcd)
 		ohci->flags |= OHCI_QUIRK_FRAME_NO;
 
 	ohci_hcd_init(ohci);
+
+	if (pdata->num_ports)
+		ohci->num_ports = pdata->num_ports;
+
 	err = ohci_init(ohci);
 
 	return err;

include/linux/usb/ohci_pdriver.h

@@ -25,6 +25,7 @@
  * @big_endian_desc:	BE descriptors
  * @big_endian_mmio:	BE registers
  * @no_big_frame_no:	no big endian frame_no shift
+ * @num_ports:		number of ports
  *
  * These are general configuration options for the OHCI controller. All of
  * these options are activating more or less workarounds for some hardware.
@@ -33,6 +34,7 @@ struct usb_ohci_pdata {
 	unsigned	big_endian_desc:1;
 	unsigned	big_endian_mmio:1;
 	unsigned	no_big_frame_no:1;
+	unsigned int	num_ports;
 
 	/* Turn on all power and clocks */
 	int (*power_on)(struct platform_device *pdev);