Intel Penwell USB Host only can provide 200mA via its OTG port. so add power budget limitaition for power supply safety on OTG port. Signed-off-by: Hao Wu <hao.wu@xxxxxxxxx> --- drivers/usb/host/ehci-pci.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index c421608..c8b5f2b 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -103,6 +103,11 @@ static int ehci_pci_setup(struct usb_hcd *hcd) hcd->has_tt = 1; ehci->has_hostpc = 1; force_otg_hc_mode = 1; + + /* For Penwell, Power budget limit is 200mA */ + if (pdev->device == 0x0829) + hcd->power_budget = 200; + hcd->has_sram = 1; hcd->sram_no_payload = 1; sram_init(hcd); -- 1.6.0.6 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
