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

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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>
This commit is contained in:
Florian Fainelli 2012-10-08 15:11:26 +02:00 committed by Greg Kroah-Hartman
parent f3a958d30d
commit 2b16e39ee0
2 changed files with 6 additions and 0 deletions
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4
drivers/usb/host/ohci-platform.c
View File

@ -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;

2
include/linux/usb/ohci_pdriver.h
View File

@ -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);