diff options
| author | Martin Chi <mchi@nvidia.com> | 2014-03-12 12:37:37 +0800 |
|---|---|---|
| committer | Martin Chi <mchi@nvidia.com> | 2014-03-12 18:06:19 -0700 |
| commit | 237b7daa258fbaae25af6a47099f0dab8af37a89 (patch) | |
| tree | 5cb1a317fa7c3f85bda0aa6608d31c62c60cced0 /arch | |
| parent | af6d768ff8df29a608886fcc22d5e697e753410d (diff) | |
usb:hsic: disable PMC master control in usb resume
disable pmc remote wake-up detection in usb resume
to prevent the pmc remote wake-up during usb
auto-resume, otherwise, the concurrent resume may
cause hsic bus entering unexpected state and
cause 'XactErr' errs.
bug 1476774
Change-Id: I0d2babbb196208b454c3de31492a703dafeb6629
Signed-off-by: Martin Chi <mchi@nvidia.com>
Reviewed-on: http://git-master/r/380735
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Suresh Mangipudi <smangipudi@nvidia.com>
Reviewed-by: Gray Lei <glei@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/tegra11x_usb_phy.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/tegra11x_usb_phy.c b/arch/arm/mach-tegra/tegra11x_usb_phy.c index 482306d1e259..acf740cc5a4f 100644 --- a/arch/arm/mach-tegra/tegra11x_usb_phy.c +++ b/arch/arm/mach-tegra/tegra11x_usb_phy.c @@ -1619,6 +1619,11 @@ static void uhsic_phy_restore_end(struct tegra_usb_phy *phy) irq_disabled = true; } + /* Disable PMC remote wake-up detection */ + val = readl(base + UHSIC_PMC_WAKEUP0); + val &= ~EVENT_INT_ENB; + writel(val, base + UHSIC_PMC_WAKEUP0); + /* * If pmc wakeup is detected after putting controller in suspend * in usb_phy_bringup_host_cotroller, restart bringing up host |