Commit a00f3dea authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

ACPI: PM: s2idle: Drop acpi_get_lps0_constraint() 



Drop unused function acpi_get_lps0_constraint().

No functional impact.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: default avatarMario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/5032801.GXAFRqVoOG@rafael.j.wysocki
parent 211ddde0

drivers/acpi/x86/s2idle.c

+0 −24
Original line number Diff line number Diff line
@@ -299,30 +299,6 @@ static void lpi_device_get_constraints(void) 
	ACPI_FREE(out_obj);

}



/**

 * acpi_get_lps0_constraint - Get the LPS0 constraint for a device.

 * @adev: Device to get the constraint for.

 *

 * The LPS0 constraint is the shallowest (minimum) power state in which the

 * device can be so as to allow the platform as a whole to achieve additional

 * energy conservation by utilizing a system-wide low-power state.

 *

 * Returns:

 *  - ACPI power state value of the constraint for @adev on success.

 *  - Otherwise, ACPI_STATE_UNKNOWN.

 */

int acpi_get_lps0_constraint(struct acpi_device *adev)

{

	struct lpi_constraints *entry;



	for_each_lpi_constraint(entry) {

		if (adev->handle == entry->handle)

			return entry->min_dstate;

	}



	return ACPI_STATE_UNKNOWN;

}



static void lpi_check_constraints(void)

{

	struct lpi_constraints *entry;

include/linux/acpi.h

+0 −5
Original line number Diff line number Diff line
@@ -1146,12 +1146,7 @@ struct acpi_s2idle_dev_ops { 
#if defined(CONFIG_SUSPEND) && defined(CONFIG_X86)

int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);

void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);

int acpi_get_lps0_constraint(struct acpi_device *adev);

#else /* CONFIG_SUSPEND && CONFIG_X86 */

static inline int acpi_get_lps0_constraint(struct device *dev)

{

	return ACPI_STATE_UNKNOWN;

}

static inline int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg)

{

	return -ENODEV;