usb: chipidea: imx: add usb as system wakeup source

Enable USB as system wakeup source, and each platform needs to implement
imx_usbmisc_set_wakeup in usbmisc_imx.c to support.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 5ad85fe84411d7ddb38749356a040f3e85c8cc31..f7f9fd45c9eac738d734e9226c57af99e8ecbb46 100644 (file)
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -199,6 +199,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
                pm_runtime_enable(&pdev->dev);
        }
 
+       device_set_wakeup_capable(&pdev->dev, true);
+
        return 0;
 
 disable_device:
@@ -270,12 +272,23 @@ clk_disable:
 #ifdef CONFIG_PM_SLEEP
 static int ci_hdrc_imx_suspend(struct device *dev)
 {
+       int ret;
+
        struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
 
        if (data->in_lpm)
                /* The core's suspend doesn't run */
                return 0;
 
+       if (device_may_wakeup(dev)) {
+               ret = imx_usbmisc_set_wakeup(data->usbmisc_data, true);
+               if (ret) {
+                       dev_err(dev, "usbmisc set_wakeup failed, ret=%d\n",
+                                       ret);
+                       return ret;
+               }
+       }
+
        return imx_controller_suspend(dev);
 }