5.4-stable review patch. If anyone has any objections, please let me know.
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From: Krishna Kurapati krishna.kurapati@oss.qualcomm.com
[ Upstream commit 41cf11946b9076383a2222bbf1ef57d64d033f66 ]
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.qual... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/host/xhci-plat.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 73570b392282d..85a39a4b85ce2 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -222,6 +222,7 @@ static int xhci_plat_probe(struct platform_device *pdev) }
pm_runtime_set_active(&pdev->dev); + pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_enable(&pdev->dev); pm_runtime_get_noresume(&pdev->dev);