Commit 4ba38ee3 authored by Even Xu's avatar Even Xu Committed by Jiri Kosina
Browse files

HID: intel-thc-hid: Intel-quickspi: Improve power management for touch devices 



Enhance power management with two key improvements:
1. Hibernate support: Send POWER_OFF command when entering hibernate
   mode.
2. Conditional sleep commands: Only send POWER_SLEEP/POWER_ON commands
   during system suspend/resume when the touch device is not configured
   as a wake source, preserving Wake-on-Touch (WoT) functionality. This
   ensures proper power states while maintaining expected wake behavior.

Signed-off-by: default avatarEven Xu <even.xu@intel.com>
Tested-by: default avatarRui Zhang <rui1.zhang@intel.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.com>
parent f0caa1d4

drivers/hid/intel-thc-hid/intel-quickspi/pci-quickspi.c

+10 −6
Original line number Diff line number Diff line
@@ -749,9 +749,11 @@ static int quickspi_suspend(struct device *device) 
	if (!qsdev)

		return -ENODEV;



	if (!device_may_wakeup(qsdev->dev)) {

		ret = quickspi_set_power(qsdev, HIDSPI_SLEEP);

		if (ret)

			return ret;

	}



	ret = thc_interrupt_quiesce(qsdev->thc_hw, true);

	if (ret)
@@ -790,9 +792,8 @@ static int quickspi_resume(struct device *device) 
	if (ret)

		return ret;



	ret = quickspi_set_power(qsdev, HIDSPI_ON);

	if (ret)

		return ret;

	if (!device_may_wakeup(qsdev->dev))

		return quickspi_set_power(qsdev, HIDSPI_ON);



	return 0;

}
@@ -851,6 +852,9 @@ static int quickspi_poweroff(struct device *device) 
	if (!qsdev)

		return -ENODEV;



	/* Ignore the return value as platform will be poweroff soon */

	quickspi_set_power(qsdev, HIDSPI_OFF);



	ret = thc_interrupt_quiesce(qsdev->thc_hw, true);

	if (ret)

		return ret;