From: Hao Wu <hao.wu@xxxxxxxxx>
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>
Signed-off-by: Dirk Brandewie <dirk.brandewie@xxxxxxxxx>
Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
---
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 1a9de08..2cf5ace5 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -74,6 +74,11 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
ehci->has_hostpc = 1;
ehci->has_otg = 1;
force_otg_hc_mode = 1;
+
+ /* For Penwell, Power budget limit is 200mA */
+ if (pdev->device == 0x0829)
+ hcd->power_budget = 200;
+
} else if (pdev->device == 0x0806) {
ehci_info(ehci, "Detected Langwell MPH\n");
hcd->has_tt = 1;
--
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