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Commit f43fc5a0 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'acpi-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 

Pull ACPI fixes from Rafael Wysocki:
 "These fix a suspend/resume regression in the ACPI driver for Intel
  SoCs (LPSS), add a new system wakeup quirk to the ACPI EC driver and
  fix an inline stub of a function in the ACPI processor driver that
  diverged from the original.

  Specifics:

   - Fix a suspend/resume regression in the ACPI driver for Intel SoCs
     (LPSS) to make it work on systems where some power management
     quirks should only be applied for runtime PM and suspend-to-idle
     and not for suspend-to-RAM (Rafael Wysocki).

   - Add a system wakeup quirk for Thinkpad X1 Carbon 6th to the ACPI EC
     driver to avoid drainig battery too fast while suspended to idle on
     those systems (Mika Westerberg).

   - Fix an inline stub of acpi_processor_ppc_has_changed() to match the
     original function definition (Brian Norris)"

* tag 'acpi-4.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / processor: Finish making acpi_processor_ppc_has_changed() void
  ACPI / EC: Use ec_no_wakeup on Thinkpad X1 Carbon 6th
  ACPI / LPSS: Avoid PM quirks on suspend and resume from S3
parents 26c92a38 e50f182c

drivers/acpi/acpi_lpss.c

+11 −7
Original line number Original line Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/pm_domain.h>

#include <linux/pm_domain.h>

#include <linux/pm_runtime.h>

#include <linux/pm_runtime.h>

#include <linux/pwm.h>

#include <linux/pwm.h>

#include <linux/suspend.h>

#include <linux/delay.h>

#include <linux/delay.h>





#include "internal.h"

#include "internal.h"
@@ -946,9 +947,10 @@ static void lpss_iosf_exit_d3_state(void) 
	mutex_unlock(&lpss_iosf_mutex);

	mutex_unlock(&lpss_iosf_mutex);

}

}





static int acpi_lpss_suspend(struct device *dev, bool wakeup)

static int acpi_lpss_suspend(struct device *dev, bool runtime)

{

{

	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));

	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));

	bool wakeup = runtime || device_may_wakeup(dev);

	int ret;

	int ret;





	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)

	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
@@ -961,13 +963,14 @@ static int acpi_lpss_suspend(struct device *dev, bool wakeup) 
	 * wrong status for devices being about to be powered off. See

	 * wrong status for devices being about to be powered off. See

	 * lpss_iosf_enter_d3_state() for further information.

	 * lpss_iosf_enter_d3_state() for further information.

	 */

	 */

	if (lpss_quirks & LPSS_QUIRK_ALWAYS_POWER_ON && iosf_mbi_available())

	if ((runtime || !pm_suspend_via_firmware()) &&

	    lpss_quirks & LPSS_QUIRK_ALWAYS_POWER_ON && iosf_mbi_available())

		lpss_iosf_enter_d3_state();

		lpss_iosf_enter_d3_state();





	return ret;

	return ret;

}

}





static int acpi_lpss_resume(struct device *dev)

static int acpi_lpss_resume(struct device *dev, bool runtime)

{

{

	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));

	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));

	int ret;

	int ret;
@@ -976,7 +979,8 @@ static int acpi_lpss_resume(struct device *dev) 
	 * This call is kept first to be in symmetry with

	 * This call is kept first to be in symmetry with

	 * acpi_lpss_runtime_suspend() one.

	 * acpi_lpss_runtime_suspend() one.

	 */

	 */

	if (lpss_quirks & LPSS_QUIRK_ALWAYS_POWER_ON && iosf_mbi_available())

	if ((runtime || !pm_resume_via_firmware()) &&

	    lpss_quirks & LPSS_QUIRK_ALWAYS_POWER_ON && iosf_mbi_available())

		lpss_iosf_exit_d3_state();

		lpss_iosf_exit_d3_state();





	ret = acpi_dev_resume(dev);

	ret = acpi_dev_resume(dev);
@@ -1000,12 +1004,12 @@ static int acpi_lpss_suspend_late(struct device *dev) 
		return 0;

		return 0;





	ret = pm_generic_suspend_late(dev);

	ret = pm_generic_suspend_late(dev);

	return ret ? ret : acpi_lpss_suspend(dev, device_may_wakeup(dev));

	return ret ? ret : acpi_lpss_suspend(dev, false);

}

}





static int acpi_lpss_resume_early(struct device *dev)

static int acpi_lpss_resume_early(struct device *dev)

{

{

	int ret = acpi_lpss_resume(dev);

	int ret = acpi_lpss_resume(dev, false);





	return ret ? ret : pm_generic_resume_early(dev);

	return ret ? ret : pm_generic_resume_early(dev);

}

}
@@ -1020,7 +1024,7 @@ static int acpi_lpss_runtime_suspend(struct device *dev) 




static int acpi_lpss_runtime_resume(struct device *dev)

static int acpi_lpss_runtime_resume(struct device *dev)

{

{

	int ret = acpi_lpss_resume(dev);

	int ret = acpi_lpss_resume(dev, true);





	return ret ? ret : pm_generic_runtime_resume(dev);

	return ret ? ret : pm_generic_runtime_resume(dev);

}

}

drivers/acpi/ec.c

+20 −0
Original line number Original line Diff line number Diff line
@@ -2037,6 +2037,17 @@ static inline void acpi_ec_query_exit(void) 
	}

	}

}

}





static const struct dmi_system_id acpi_ec_no_wakeup[] = {

	{

		.ident = "Thinkpad X1 Carbon 6th",

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

			DMI_MATCH(DMI_PRODUCT_NAME, "20KGS3JF01"),

		},

	},

	{ },

};



int __init acpi_ec_init(void)

int __init acpi_ec_init(void)

{

{

	int result;

	int result;
@@ -2047,6 +2058,15 @@ int __init acpi_ec_init(void) 
	if (result)

	if (result)

		return result;

		return result;





	/*

	 * Disable EC wakeup on following systems to prevent periodic

	 * wakeup from EC GPE.

	 */

	if (dmi_check_system(acpi_ec_no_wakeup)) {

		ec_no_wakeup = true;

		pr_debug("Disabling EC wakeup on suspend-to-idle\n");

	}



	/* Drivers must be started after acpi_ec_query_init() */

	/* Drivers must be started after acpi_ec_query_init() */

	dsdt_fail = acpi_bus_register_driver(&acpi_ec_driver);

	dsdt_fail = acpi_bus_register_driver(&acpi_ec_driver);

	/*

	/*

include/acpi/processor.h

+1 −2
Original line number Original line Diff line number Diff line
@@ -309,7 +309,7 @@ static inline void acpi_processor_ppc_exit(void) 
{

{

	return;

	return;

}

}

static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,

static inline void acpi_processor_ppc_has_changed(struct acpi_processor *pr,

								int event_flag)

								int event_flag)

{

{

	static unsigned int printout = 1;

	static unsigned int printout = 1;
@@ -320,7 +320,6 @@ static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr, 
		       "Consider compiling CPUfreq support into your kernel.\n");

		       "Consider compiling CPUfreq support into your kernel.\n");

		printout = 0;

		printout = 0;

	}

	}

	return 0;

}

}

static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)

static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)

{

{