diff options
| author | Ajay Gupta <ajayg@nvidia.com> | 2013-01-30 19:26:06 -0800 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 12:51:41 -0700 |
| commit | f20d5ffe4234cf7aca9bf78d3183d4f354ffe7e1 (patch) | |
| tree | d5a0c27afb63f259b55229df076355c5ae30b2cb /drivers/usb | |
| parent | ba1ca0c6107f1892a040e834bc13ea2f8feaad6c (diff) | |
usb: xhci: tegra: don't disable wakeup event for unused ports
We had seen ELPG loop issue if wakeup event for unused ports are not
disabled. This seems to be due to some programming in USB2 driver which
has been fixed now so there is no need to disable wakeup event for unused
ports.
BUG 1177456
Change-Id: I6bce86cffed826ae5ea294da44334d8afdf7fd0e
Signed-off-by: Ajay Gupta <ajayg@nvidia.com>
Change-Id: If9262395bd23a7870a030b11e9253885e40983a3
Reviewed-on: http://git-master/r/196129
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>
Reviewed-by: Henry Lin <henryl@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-tegra.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index e06d070bf1e0..7929218a3087 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -374,7 +374,6 @@ static int tegra_xhci_pmc_usb2_wakenotif_init(struct tegra_xhci_hcd *tegra, struct platform_device *pdev = tegra->pdev; struct xhci_hcd *xhci = tegra->xhci; struct usb_hcd *hcd = xhci_to_hcd(xhci); - int i; u32 val; /* @@ -458,18 +457,6 @@ static int tegra_xhci_pmc_usb2_wakenotif_init(struct tegra_xhci_hcd *tegra, writel(val, pmc_base + PMC_UTMIP_UHSIC_SAVED_STATE_0); - /* PMC_UTMIP_UHSIC_LINE_WAKEUP_0 */ - for (i = 0; i < PMC_PORT_NUM; i++) { - val = readl(pmc_base + PMC_UTMIP_UHSIC_LINE_WAKEUP_0); - val &= ~UTMIP_LINE_WAKEUP_EN(i); - writel(val, pmc_base + PMC_UTMIP_UHSIC_LINE_WAKEUP_0); - } - - /* UHSIC2_LINE_WAKEUP_EN_P1=0 */ - val = readl(pmc_base + PMC_UTMIP_UHSIC2_LINE_WAKEUP_0); - val &= ~UHSIC_LINE_WAKEUP_EN_P1; - writel(val, pmc_base + PMC_UTMIP_UHSIC2_LINE_WAKEUP_0); - /* * G. Remove fake values and make synchronizers work a bit. * (TODO: Duplicate with #C?) |