| Message ID | 20160626072838.28082-13-stephen.boyd@linaro.org |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c index 520c85e701ef..430856ef1be3 100644 --- a/drivers/usb/chipidea/ci_hdrc_msm.c +++ b/drivers/usb/chipidea/ci_hdrc_msm.c @@ -80,6 +80,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev) pm_runtime_no_callbacks(&pdev->dev); pm_runtime_enable(&pdev->dev); + pm_runtime_get(&pdev->dev); return 0; } @@ -88,6 +89,7 @@ static int ci_hdrc_msm_remove(struct platform_device *pdev) { struct platform_device *plat_ci = platform_get_drvdata(pdev); + pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); ci_hdrc_remove_device(plat_ci);
Sometimes the usb wrapper device is part of a power domain that needs to stay on as long as the device is active. Let's get and put the device in driver probe/remove so that we keep the power domain powered as long as the device is attached. We can fine tune this later to handle wakeup interrupts, etc. for finer grain power management later, but this is necessary to make sure we can keep accessing the device right now. Cc: Peter Chen <peter.chen@nxp.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> --- drivers/usb/chipidea/ci_hdrc_msm.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.9.0.rc2.8.ga28705d -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html