usb: xhci: plat: Facilitate using autosuspend for xhci plat devices

Allow autosuspend to be used by xhci plat device. For Qualcomm SoCs,
when in host mode, it is intended that the controller goes to suspend
state to save power and wait for interrupts from connected peripheral
to wake it up. This is particularly used in cases where a HID or Audio
device is connected. In such scenarios, the usb controller can enter
auto suspend and resume action after getting interrupts from the
connected device.

Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250916120436.3617598-1-krishna.kurapati@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 3a56d8f9451924540d9b40fb07d1ea9492656a35..b3f895505cbebfc3a257510f79b100e941ca791a 100644 (file)
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -172,6 +172,7 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s
                return ret;
 
        pm_runtime_set_active(&pdev->dev);
+       pm_runtime_use_autosuspend(&pdev->dev);
        pm_runtime_enable(&pdev->dev);
        pm_runtime_get_noresume(&pdev->dev);