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| author | Hao Wu <hao.wu@intel.com> | 2010-12-09 10:37:43 +0000 |
|---|---|---|
| committer | Alan Cox <alan@linux.intel.com> | 2010-12-09 10:37:43 +0000 |
| commit | 7538441b8739d9f1072a3d431ae64c00cce12ef0 (patch) | |
| tree | a218b4e6d57ae4f569c9ef542e1381560bb7cc74 /drivers | |
| parent | b7bfe7d6f50386cba8b265271fa76772ea4d3418 (diff) | |
| download | mrst-s0i3-test-7538441b8739d9f1072a3d431ae64c00cce12ef0.tar.gz mrst-s0i3-test-7538441b8739d9f1072a3d431ae64c00cce12ef0.tar.xz mrst-s0i3-test-7538441b8739d9f1072a3d431ae64c00cce12ef0.zip | |
usb: ehci-pci: add Intel Penwell USB Host Power budget limitation
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@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | 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 48215e591dc..c84add2096e 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -104,6 +104,11 @@ 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; + hcd->has_sram = 1; hcd->sram_no_payload = 1; sram_init(hcd); |