diff options
| author | Ajay Gupta <ajayg@nvidia.com> | 2013-01-30 19:26:06 -0800 |
|---|---|---|
| committer | Riham Haidar <rhaidar@nvidia.com> | 2013-02-01 18:41:52 -0800 |
| commit | d273712b2415f4f634da14515dfa59f25ddfa234 (patch) | |
| tree | d6d972eb02460cd701f48e31c269343791c2082f /drivers/usb | |
| parent | d40ff128079faa2ccfc7379fe8bafd63f281483f (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: I5c230adc7f729a34c096ab2d9fc463a45d0e1720
Reviewed-on: http://git-master/r/196148
Reviewed-by: Riham Haidar <rhaidar@nvidia.com>
Tested-by: Riham Haidar <rhaidar@nvidia.com>
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 900cdf886661..1e25a9852a6b 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?) |