diff options
| author | Prashant Gaikwad <pgaikwad@nvidia.com> | 2011-07-01 14:31:02 +0530 |
|---|---|---|
| committer | Manish Tuteja <mtuteja@nvidia.com> | 2011-07-05 10:35:27 -0700 |
| commit | 6a78f2d2e72a2a5f20b784c0efc4917ece4776c5 (patch) | |
| tree | df58822ac2975d556ffa45a7ef91fd66aa79af4f | |
| parent | 9f5bb3ae0980f8dc71cc2934ca27e53d0b47060d (diff) | |
usb: ehci: tegra: Enable/disable usb clock
Disable usb clock when no cable is connected.
Bug 829628
Change-Id: Idabe72093ae1fc1a236b0173da93813f07f3501c
Reviewed-on: http://git-master/r/39353
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Tested-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: Suresh Mangipudi <smangipudi@nvidia.com>
| -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 c254eac4dcc5..e5cc0971a313 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -64,6 +64,9 @@ static void tegra_ehci_power_up(struct usb_hcd *hcd, bool is_dpd) clk_enable(tegra->emc_clk); clk_enable(tegra->sclk_clk); +#ifndef CONFIG_USB_HOTPLUG + clk_enable(tegra->clk); +#endif tegra_usb_phy_power_on(tegra->phy, is_dpd); tegra->host_resumed = 1; } @@ -74,6 +77,9 @@ 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 clk_disable(tegra->emc_clk); clk_disable(tegra->sclk_clk); } |