diff options
| author | Venkat Moganty <vmoganty@nvidia.com> | 2010-08-13 15:00:30 +0530 |
|---|---|---|
| committer | Yu-Huan Hsu <yhsu@nvidia.com> | 2010-09-24 10:39:16 -0700 |
| commit | d76367e3326b4e196a84b3e4f9317c89b2db159c (patch) | |
| tree | ba32dfd75f24bf56a5171018453b5632117608be /arch | |
| parent | 904ac2e3f599f21fb5a4f5103d130ecdb7271ebc (diff) | |
[ARM-tegra]UsbPhy: Enable Host mode context save in LP0
During LP0 suspend host mode context is not saved and this makes atatched device
to re-enumerate after coming out of the LP0. To fix this USB context registers
are saved during LP0 suspend and restored back on LP0 resume.
Bug 721762
(cherry picked from commit c4ff3f80540e0228790ea568464b2a8078cce188)
Change-Id: I2b57abcfc6451ceccc545c648c0182a6b81dec71
Reviewed-on: http://git-master/r/7185
Reviewed-by: Hanumanth Venkateswa Moganty <vmoganty@nvidia.com>
Tested-by: Hanumanth Venkateswa Moganty <vmoganty@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/nvddk/nvddk_usbphy.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/arm/mach-tegra/nvddk/nvddk_usbphy.c b/arch/arm/mach-tegra/nvddk/nvddk_usbphy.c index aa80b2fa0eec..733c2787c630 100644 --- a/arch/arm/mach-tegra/nvddk/nvddk_usbphy.c +++ b/arch/arm/mach-tegra/nvddk/nvddk_usbphy.c @@ -634,7 +634,6 @@ NvDdkUsbPhyPowerUp( NvBool IsDpd) { NvError e = NvSuccess; - NvOdmSocPowerState state = NvRmPowerLowestStateGet(); NV_ASSERT(hUsbPhy); @@ -671,9 +670,7 @@ NvDdkUsbPhyPowerUp( /* Allow restoring register context for the USB host if it is a ULPI interface or if the lowest power state is LP1 */ - if ((hUsbPhy->pProperty->UsbMode == NvOdmUsbModeType_Host) && - ((state != NvOdmSocPowerState_DeepSleep) || - (hUsbPhy->pProperty->UsbInterfaceType == NvOdmUsbInterfaceType_UlpiExternalPhy))) + if (hUsbPhy->pProperty->UsbMode == NvOdmUsbModeType_Host) { hUsbPhy->RestoreContext(hUsbPhy); } @@ -707,7 +704,6 @@ NvDdkUsbPhyPowerDown( NvError e = NvSuccess; NvDdkUsbPhyIoctl_VBusStatusOutputArgs VBusStatus; NvU32 TimeOut = USB_PHY_HW_TIMEOUT_US; - NvOdmSocPowerState state = NvRmPowerLowestStateGet(); NV_ASSERT(hUsbPhy); @@ -720,9 +716,7 @@ NvDdkUsbPhyPowerDown( /* Allow saving register context for the USB host if it is a ULPI interface or if the lowest power state is LP1 */ - if ((hUsbPhy->pProperty->UsbMode == NvOdmUsbModeType_Host) && - ((state != NvOdmSocPowerState_DeepSleep) || - (hUsbPhy->pProperty->UsbInterfaceType == NvOdmUsbInterfaceType_UlpiExternalPhy))) + if (hUsbPhy->pProperty->UsbMode == NvOdmUsbModeType_Host) { hUsbPhy->SaveContext(hUsbPhy); } |