diff options
| author | Rakesh Bodla <rbodla@nvidia.com> | 2012-05-31 21:32:23 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-06-01 13:07:10 -0700 |
| commit | 2c596cbe2ed008c047a695e77aa687564c8cf74d (patch) | |
| tree | 9218f18ad5fe2ef107b484b3c531452f72a0559a /drivers | |
| parent | e1d8ccd5570853c102c17089d6f1aff37bae42bd (diff) | |
arm: tegra: usb: fix UTMIP auto suspend issues
Fixing the UTMIP auto suspend issues.
Bug 992463
Bug 989400
Change-Id: Ia0d536cd66081b263f7f2bde5debcc600dcef22a
Signed-off-by: Rakesh Bodla <rbodla@nvidia.com>
Reviewed-on: http://git-master/r/105692
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index c5fa8160bffe..98f3d5106a38 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -224,7 +224,7 @@ static int tegra_ehci_hub_control( status_reg = &ehci->regs->port_status[(wIndex & 0xff) - 1]; /* Ensure the port PORT_SUSPEND and PORT_RESUME has cleared */ if (handshake(ehci, status_reg, (PORT_SUSPEND | PORT_RESUME), 0, 25000)) { - pr_err("%s: timeout waiting for SUSPEND to clear\n", __func__); + EHCI_DBG("%s: timeout waiting for SUSPEND to clear\n", __func__); } tegra_usb_phy_post_resume(tegra->phy); tegra->port_resuming = 0; @@ -241,6 +241,11 @@ static int tegra_ehci_hub_control( if (wValue == USB_PORT_FEAT_SUSPEND) { tegra_usb_phy_pre_resume(tegra->phy, false); tegra->port_resuming = 1; + } else if (wValue == USB_PORT_FEAT_ENABLE) { + u32 temp; + temp = ehci_readl(ehci, &ehci->regs->port_status[0]) & ~PORT_RWC_BITS; + ehci_writel(ehci, temp & ~PORT_PE, &ehci->regs->port_status[0]); + return retval; } break; } @@ -264,6 +269,12 @@ static int tegra_ehci_hub_control( tegra_usb_phy_port_power(tegra->phy); } break; + case ClearPortFeature: + if (wValue == USB_PORT_FEAT_SUSPEND) { + /* tegra USB controller needs 25 ms to resume the port */ + ehci->reset_done[wIndex-1] = jiffies + msecs_to_jiffies(25); + } + break; } } |