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: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index e24ec9f..1caaf65 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -31,6 +31,10 @@
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;
diff --git a/include/linux/usb/ohci_pdriver.h b/include/linux/usb/ohci_pdriver.h
index 74e7755..012f2b7 100644
--- a/include/linux/usb/ohci_pdriver.h
+++ b/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 @@
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);