diff options
| author | Venkat Moganty <vmoganty@nvidia.com> | 2010-05-08 00:50:18 +0530 |
|---|---|---|
| committer | Gary King <gking@nvidia.com> | 2010-05-07 14:23:24 -0700 |
| commit | a22928471875feb95532b42b8ad3718cdd43e1bf (patch) | |
| tree | 0548478e32f036b83ea714a79336c55756cfe735 | |
| parent | 8d622a4b0297b554df0fb0447baf1d4baba25fce (diff) | |
ehci tegra: Power down phy during auto suspend.
During auto suspend, USB phy is not powered down. Due to this there is
increase in the power numbers. Fixed by powering down/up the phy during auto
suspend/resume.
Bug 682727
Tested on Harmony/eclair.
Change-Id: I9c5500308bdaa3cb9f17b7f0745bd12969a29aae
Reviewed-on: http://git-master/r/1317
Tested-by: Hanumanth Venkateswa Moganty <vmoganty@nvidia.com>
Reviewed-by: Narendra Damahe <ndamahe@nvidia.com>
Tested-by: Narendra Damahe <ndamahe@nvidia.com>
Reviewed-by: Gary King <gking@nvidia.com>
| -rwxr-xr-x | drivers/usb/host/ehci-tegra.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 53301cb4342e..e57abd0c6a3d 100755 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -358,6 +358,7 @@ static int tegra_ehci_bus_suspend(struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); struct tegra_hcd_platform_data *pdata; + int error_status = 0; /* initialize the platform data pointer */ pdata = hcd->self.controller->platform_data; @@ -384,7 +385,13 @@ static int tegra_ehci_bus_suspend(struct usb_hcd *hcd) } } - return ehci_bus_suspend(hcd); + if (ehci->host_resumed) { + error_status = ehci_bus_suspend(hcd); + if (!error_status) + tegra_ehci_power_down(hcd); + } + + return error_status; } static int tegra_ehci_bus_resume(struct usb_hcd *hcd) @@ -417,6 +424,10 @@ static int tegra_ehci_bus_resume(struct usb_hcd *hcd) } } + if (!ehci->host_resumed) { + tegra_ehci_power_up(hcd); + } + return ehci_bus_resume(hcd); } |