diff options
| author | Suresh Mangipudi <smangipudi@nvidia.com> | 2011-09-27 11:53:54 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2011-09-27 15:16:22 -0700 |
| commit | 95efbf5bb209984a8303b3c7022ce6cc1b06bace (patch) | |
| tree | 577b376f8dcd1228e4f55222675737b5cfdd3b55 | |
| parent | 9b500390784a8e1d11c0bd225c342781bc817b98 (diff) | |
tegra: usb: phy: check usb line status during LP resume
Check the usb line status during the resume from low power mode for
proper usb phy state.
Bug 874491
Change-Id: Iad8cb86d0db354d9e0c4ed1ed5037dbc01931867
Reviewed-on: http://git-master/r/54622
Reviewed-by: Suresh Mangipudi <smangipudi@nvidia.com>
Tested-by: Suresh Mangipudi <smangipudi@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
| -rw-r--r-- | arch/arm/mach-tegra/usb_phy.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/usb_phy.c b/arch/arm/mach-tegra/usb_phy.c index 644f92bebd2a..be02ae408233 100644 --- a/arch/arm/mach-tegra/usb_phy.c +++ b/arch/arm/mach-tegra/usb_phy.c @@ -1525,6 +1525,11 @@ static void utmi_phy_restore_start(struct tegra_usb_phy *phy, /* check whether we wake up from the remote resume */ if (UTMIP_WALK_PTR_VAL(inst) & val) { phy->remote_wakeup = true; + } else { + if (!((UTMIP_USBON_VAL(phy->instance) | + UTMIP_USBOP_VAL(phy->instance)) & val)) { + utmip_phy_disable_pmc_bus_ctrl(phy); + } } /* (2LS WAR)is not required for LS devices and is only for HS */ |