diff options
| author | Bitan Biswas <bbiswas@nvidia.com> | 2010-02-03 22:40:23 +0530 |
|---|---|---|
| committer | Bitan Biswas <bbiswas@nvidia.com> | 2010-02-03 22:40:23 +0530 |
| commit | fd8f187e0da2ff6732d6f4022c4ffc583de2caef (patch) | |
| tree | 3d845b86ad6dd51c15517c13400dede166901bad /drivers/usb | |
| parent | bf55431904dc111a2ad17b7196abd8461de49d42 (diff) | |
tegra pm: usb host suspend/resume support
suspend/resume APIs defined for tegra usb host
Bug 635299
Tested on : harmony. suspend/resume calls success.
Change-Id: I5dad8bc2cc524de74c2fd3260b014de4764c604c
Diffstat (limited to 'drivers/usb')
| -rwxr-xr-x | drivers/usb/host/ehci-tegra.c | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index ba8e45a87f3c..505cee6c94e4 100755 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -264,18 +264,6 @@ static int tegra_ehci_setup(struct usb_hcd *hcd) return retval; } -static int tegra_ehci_bus_suspend(struct usb_hcd *hcd) -{ - printk("%s called\n", __func__); - return 0; -} - -static int tegra_ehci_bus_resume(struct usb_hcd *hcd) -{ - printk("%s called\n", __func__); - return 0; -} - static const struct hc_driver tegra_ehci_hc_driver = { .description = hcd_name, .product_desc = "Tegra Ehci host controller", @@ -295,8 +283,8 @@ static const struct hc_driver tegra_ehci_hc_driver = { .get_frame_number = ehci_get_frame, .hub_status_data = ehci_hub_status_data, .hub_control = tegra_ehci_hub_control, - .bus_suspend = tegra_ehci_bus_suspend, - .bus_resume = tegra_ehci_bus_resume, + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, .relinquish_port = ehci_relinquish_port, .port_handed_over = ehci_port_handed_over, }; @@ -470,12 +458,34 @@ static int tegra_ehci_remove(struct platform_device *pdev) static int tegra_ehci_suspend(struct platform_device *pdev, pm_message_t message) { - printk("%s called\n", __func__); + struct tegra_hcd_platform_data *pdata; + NvError Err; + pdata = (struct tegra_hcd_platform_data *)pdev->dev.platform_data; + if (!pdata) { + dev_err(&pdev->dev, "Cannot run without platform data\n"); + return -1; + } + Err = NvDdkUsbPhyPowerDown(pdata->hUsbPhy, NV_TRUE, 0); + if (Err != NvSuccess) { + dev_err(&pdev->dev, "\n Usb Phy down error=0x%x ", Err); + return -1; + } return 0; } static int tegra_ehci_resume(struct platform_device *pdev) { - printk("%s called\n", __func__); + struct tegra_hcd_platform_data *pdata; + NvError Err; + pdata = (struct tegra_hcd_platform_data *)pdev->dev.platform_data; + if (!pdata) { + dev_err(&pdev->dev, "Cannot run without platform data\n"); + return -1; + } + Err = NvDdkUsbPhyPowerUp(pdata->hUsbPhy, NV_TRUE, 0); + if (Err != NvSuccess) { + dev_err(&pdev->dev, "\n Usb Phy Up error=0x%x ", Err); + return -1; + } return 0; } |