diff options
| author | Suresh Mangipudi <smangipudi@nvidia.com> | 2011-07-22 12:15:18 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-07-25 15:13:41 -0700 |
| commit | be9182e70799124f527028e24060cdbac5352176 (patch) | |
| tree | 9df1d8b19a2c7b5919b24888194e889862d912ff /drivers/usb | |
| parent | 4a63f22f1a19152be0840ccf5bb8742180f7e002 (diff) | |
usb: ehci: tegra: Enable/disable usb clock
Disable usb clock when no cable is connected.
Bug 829628, 849248
Reviewed-on: http://git-master/r/39353
(cherry picked from commit 6a78f2d2e72a2a5f20b784c0efc4917ece4776c5)
Change-Id: I94d954d735226341095d7161b8dce3888f2d31a2
Reviewed-on: http://git-master/r/42546
Reviewed-by: Suresh Mangipudi <smangipudi@nvidia.com>
Tested-by: Suresh Mangipudi <smangipudi@nvidia.com>
Reviewed-by: Rakesh Bodla <rbodla@nvidia.com>
Reviewed-by: Hanumanth Venkateswa Moganty <vmoganty@nvidia.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 028070a76fed..359c3036bdb5 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -65,6 +65,9 @@ static void tegra_ehci_power_up(struct usb_hcd *hcd, bool is_dpd) { struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); +#ifndef CONFIG_USB_HOTPLUG + clk_enable(tegra->clk); +#endif tegra_usb_phy_power_on(tegra->phy, is_dpd); tegra->host_resumed = 1; } @@ -75,6 +78,9 @@ static void tegra_ehci_power_down(struct usb_hcd *hcd, bool is_dpd) tegra->host_resumed = 0; tegra_usb_phy_power_off(tegra->phy, is_dpd); +#ifndef CONFIG_USB_HOTPLUG + clk_disable(tegra->clk); +#endif } static irqreturn_t tegra_ehci_irq (struct usb_hcd *hcd) |