[PATCH 5/7] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP

[PATCH 5/7] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP

[Rafael J. Wysocki]

From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>

Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which
matches its purpose more closely.

No functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/driver-api/pm/devices.rst    |  6 +++---
 Documentation/power/pci.rst                | 10 +++++-----
 drivers/base/power/main.c                  |  2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    |  2 +-
 drivers/gpu/drm/i915/intel_runtime_pm.c    |  2 +-
 drivers/gpu/drm/radeon/radeon_kms.c        |  2 +-
 drivers/misc/mei/pci-me.c                  |  2 +-
 drivers/misc/mei/pci-txe.c                 |  2 +-
 drivers/net/ethernet/intel/e1000e/netdev.c |  2 +-
 drivers/net/ethernet/intel/igb/igb_main.c  |  2 +-
 drivers/net/ethernet/intel/igc/igc_main.c  |  2 +-
 drivers/pci/pcie/portdrv_pci.c             |  2 +-
 include/linux/pm.h                         |  6 +++---
 13 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst
index f66c7b9126ea..4ace0eba4506 100644
--- a/Documentation/driver-api/pm/devices.rst
+++ b/Documentation/driver-api/pm/devices.rst
@@ -361,9 +361,9 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``.
 	runtime PM disabled.
 
 	This feature also can be controlled by device drivers by using the
-	``DPM_FLAG_NEVER_SKIP`` and ``DPM_FLAG_SMART_PREPARE`` driver power
-	management flags.  [Typically, they are set at the time the driver is
-	probed against the device in question by passing them to the
+	``DPM_FLAG_NO_DIRECT_COMPLETE`` and ``DPM_FLAG_SMART_PREPARE`` driver
+	power management flags.  [Typically, they are set at the time the driver
+	is probed against the device in question by passing them to the
 	:c:func:`dev_pm_set_driver_flags` helper function.]  If the first of
 	these flags is set, the PM core will not apply the direct-complete
 	procedure described above to the given device and, consequenty, to any
diff --git a/Documentation/power/pci.rst b/Documentation/power/pci.rst
index aa1c7fce6cd0..9e1408121bea 100644
--- a/Documentation/power/pci.rst
+++ b/Documentation/power/pci.rst
@@ -1004,11 +1004,11 @@ including the PCI bus type.  The flags should be set once at the driver probe
 time with the help of the dev_pm_set_driver_flags() function and they should not
 be updated directly afterwards.
 
-The DPM_FLAG_NEVER_SKIP flag prevents the PM core from using the direct-complete
-mechanism allowing device suspend/resume callbacks to be skipped if the device
-is in runtime suspend when the system suspend starts.  That also affects all of
-the ancestors of the device, so this flag should only be used if absolutely
-necessary.
+The DPM_FLAG_NO_DIRECT_COMPLETE flag prevents the PM core from using the
+direct-complete mechanism allowing device suspend/resume callbacks to be skipped
+if the device is in runtime suspend when the system suspend starts.  That also
+affects all of the ancestors of the device, so this flag should only be used if
+absolutely necessary.
 
 The DPM_FLAG_SMART_PREPARE flag instructs the PCI bus type to only return a
 positive value from pci_pm_prepare() if the ->prepare callback provided by the
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 21187ee37b22..aa9c8df9fc4b 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1850,7 +1850,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
 	spin_lock_irq(&dev->power.lock);
 	dev->power.direct_complete = state.event == PM_EVENT_SUSPEND &&
 		(ret > 0 || dev->power.no_pm_callbacks) &&
-		!dev_pm_test_driver_flags(dev, DPM_FLAG_NEVER_SKIP);
+		!dev_pm_test_driver_flags(dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 	spin_unlock_irq(&dev->power.lock);
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index fd1dc3236eca..a9086ea1ab60 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -191,7 +191,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
 	}
 
 	if (adev->runpm) {
-		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
+		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 		pm_runtime_use_autosuspend(dev->dev);
 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 		pm_runtime_set_active(dev->dev);
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index ad719c9602af..9cb2d7548daa 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -549,7 +549,7 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
 	 * becaue the HDA driver may require us to enable the audio power
 	 * domain during system suspend.
 	 */
-	dev_pm_set_driver_flags(kdev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(kdev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	pm_runtime_set_autosuspend_delay(kdev, 10000); /* 10s */
 	pm_runtime_mark_last_busy(kdev);
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 58176db85952..372962358a18 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -158,7 +158,7 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
 	}
 
 	if (radeon_is_px(dev)) {
-		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
+		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 		pm_runtime_use_autosuspend(dev->dev);
 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 		pm_runtime_set_active(dev->dev);
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 3d21c38e2dbb..53f16f3bd091 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -240,7 +240,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * MEI requires to resume from runtime suspend mode
 	 * in order to perform link reset flow upon system suspend.
 	 */
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	/*
 	 * ME maps runtime suspend/resume to D0i states,
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index beacf2a2f2b5..4bf26ce61044 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -128,7 +128,7 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * MEI requires to resume from runtime suspend mode
 	 * in order to perform link reset flow upon system suspend.
 	 */
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	/*
 	 * TXE maps runtime suspend/resume to own power gating states,
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 177c6da80c57..2730b1c7dddb 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -7549,7 +7549,7 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	e1000_print_device_info(adapter);
 
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	if (pci_dev_run_wake(pdev) && hw->mac.type < e1000_pch_cnp)
 		pm_runtime_put_noidle(&pdev->dev);
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index b46bff8fe056..8bb3db2cbd41 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3445,7 +3445,7 @@ static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		}
 	}
 
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	pm_runtime_put_noidle(&pdev->dev);
 	return 0;
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 69fa1ce1f927..59fc0097438f 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -4825,7 +4825,7 @@ static int igc_probe(struct pci_dev *pdev,
 	pcie_print_link_status(pdev);
 	netdev_info(netdev, "MAC: %pM\n", netdev->dev_addr);
 
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	pm_runtime_put_noidle(&pdev->dev);
 
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 160d67c59310..3acf151ae015 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -115,7 +115,7 @@ static int pcie_portdrv_probe(struct pci_dev *dev,
 
 	pci_save_state(dev);
 
-	dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NEVER_SKIP |
+	dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE |
 					   DPM_FLAG_SMART_SUSPEND);
 
 	if (pci_bridge_d3_possible(dev)) {
diff --git a/include/linux/pm.h b/include/linux/pm.h
index d89b7099f241..28fd444fb5c9 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -544,7 +544,7 @@ struct pm_subsys_data {
  * These flags can be set by device drivers at the probe time.  They need not be
  * cleared by the drivers as the driver core will take care of that.
  *
- * NEVER_SKIP: Do not skip all system suspend/resume callbacks for the device.
+ * NO_DIRECT_COMPLETE: Do not apply direct-complete optimization to the device.
  * SMART_PREPARE: Check the return value of the driver's ->prepare callback.
  * SMART_SUSPEND: No need to resume the device from runtime suspend.
  * LEAVE_SUSPENDED: Avoid resuming the device during system resume if possible.
@@ -554,7 +554,7 @@ struct pm_subsys_data {
  * their ->prepare callbacks if the driver's ->prepare callback returns 0 (in
  * other words, the system suspend/resume callbacks can only be skipped for the
  * device if its driver doesn't object against that).  This flag has no effect
- * if NEVER_SKIP is set.
+ * if NO_DIRECT_COMPLETE is set.
  *
  * Setting SMART_SUSPEND instructs bus types and PM domains which may want to
  * runtime resume the device upfront during system suspend that doing so is not
@@ -565,7 +565,7 @@ struct pm_subsys_data {
  * Setting LEAVE_SUSPENDED informs the PM core and middle-layer code that the
  * driver prefers the device to be left in suspend after system resume.
  */
-#define DPM_FLAG_NEVER_SKIP		BIT(0)
+#define DPM_FLAG_NO_DIRECT_COMPLETE	BIT(0)
 #define DPM_FLAG_SMART_PREPARE		BIT(1)
 #define DPM_FLAG_SMART_SUSPEND		BIT(2)
 #define DPM_FLAG_LEAVE_SUSPENDED	BIT(3)
-- 
2.16.4




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Re: [PATCH 5/7] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP

[Bjorn Helgaas]

On Fri, Apr 10, 2020 at 05:56:13PM +0200, Rafael J. Wysocki wrote:
> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
> 
> Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which
> matches its purpose more closely.
> 
> No functional impact.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Acked-by: Bjorn Helgaas <bhelgaas@google.com> # for PCI parts

> ---
>  Documentation/driver-api/pm/devices.rst    |  6 +++---
>  Documentation/power/pci.rst                | 10 +++++-----
>  drivers/base/power/main.c                  |  2 +-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    |  2 +-
>  drivers/gpu/drm/i915/intel_runtime_pm.c    |  2 +-
>  drivers/gpu/drm/radeon/radeon_kms.c        |  2 +-
>  drivers/misc/mei/pci-me.c                  |  2 +-
>  drivers/misc/mei/pci-txe.c                 |  2 +-
>  drivers/net/ethernet/intel/e1000e/netdev.c |  2 +-
>  drivers/net/ethernet/intel/igb/igb_main.c  |  2 +-
>  drivers/net/ethernet/intel/igc/igc_main.c  |  2 +-
>  drivers/pci/pcie/portdrv_pci.c             |  2 +-
>  include/linux/pm.h                         |  6 +++---
>  13 files changed, 21 insertions(+), 21 deletions(-)
> 
> diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst
> index f66c7b9126ea..4ace0eba4506 100644
> --- a/Documentation/driver-api/pm/devices.rst
> +++ b/Documentation/driver-api/pm/devices.rst
> @@ -361,9 +361,9 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``.
>  	runtime PM disabled.

Minor question about a preceding paragraph that ends:

  In that case, the ``->complete`` callback will be invoked directly
  after the ``->prepare`` callback and is entirely responsible for
  putting the device into a consistent state as appropriate.

What does" a consistent state as appropriate" mean?  I know this is
generic documentation at a high level, so maybe there's no good
explanation for "consistent state," but I don't know what to imagine
there.

And what does "as appropriate" mean?  Would it change the meaning to
drop those two words, or are there situations where it's not
appropriate to put the device into a consistent state?  Or maybe it's
just that the type of device determines what the consistent state is?

>  	This feature also can be controlled by device drivers by using the
> -	``DPM_FLAG_NEVER_SKIP`` and ``DPM_FLAG_SMART_PREPARE`` driver power
> -	management flags.  [Typically, they are set at the time the driver is
> -	probed against the device in question by passing them to the
> +	``DPM_FLAG_NO_DIRECT_COMPLETE`` and ``DPM_FLAG_SMART_PREPARE`` driver
> +	power management flags.  [Typically, they are set at the time the driver
> +	is probed against the device in question by passing them to the
>  	:c:func:`dev_pm_set_driver_flags` helper function.]  If the first of
>  	these flags is set, the PM core will not apply the direct-complete
>  	procedure described above to the given device and, consequenty, to any

s/consequenty/consequently/

Drive-by comment: I looked for a definition of "direct-complete".  The
closest I found is a couple paragraphs above this, where it says "Note
that this direct-complete procedure ...," but that leaves me to try to
reconstruct the definition from the preceding text.

AFAICT, going to freeze, standby, or memory sleep includes these
callbacks:

  ->prepare
  ->suspend
  ->suspend_late
  ->suspend_noirq
  ->complete         (not mentioned in the list of phases)

And "direct-complete" means we skip the suspend, suspend_late,
and suspend_noirq callbacks so we only use these:

  ->prepare
  ->complete

And apparently we skip those callbacks for device X if ->prepare() for
X and all its descendents returns a positive value AND they are all
runtime-suspended, except if a driver for X or a descendent sets
DPM_FLAG_NO_DIRECT_COMPLETE.

Bjorn
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Re: [PATCH 5/7] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP

[Jeff Kirsher]

On Fri, Apr 10, 2020 at 9:03 AM Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
>
> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
>
> Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which
> matches its purpose more closely.
>
> No functional impact.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

For the driver changes to e1000e, igb and igc.

> ---
>  Documentation/driver-api/pm/devices.rst    |  6 +++---
>  Documentation/power/pci.rst                | 10 +++++-----
>  drivers/base/power/main.c                  |  2 +-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    |  2 +-
>  drivers/gpu/drm/i915/intel_runtime_pm.c    |  2 +-
>  drivers/gpu/drm/radeon/radeon_kms.c        |  2 +-
>  drivers/misc/mei/pci-me.c                  |  2 +-
>  drivers/misc/mei/pci-txe.c                 |  2 +-
>  drivers/net/ethernet/intel/e1000e/netdev.c |  2 +-
>  drivers/net/ethernet/intel/igb/igb_main.c  |  2 +-
>  drivers/net/ethernet/intel/igc/igc_main.c  |  2 +-
>  drivers/pci/pcie/portdrv_pci.c             |  2 +-
>  include/linux/pm.h                         |  6 +++---
>  13 files changed, 21 insertions(+), 21 deletions(-)
>
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[PATCH v2 7/9] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP

[Rafael J. Wysocki]

From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>

Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which
matches its purpose more closely.

No functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # for PCI parts
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

-> v2:
   * Rebased.
   * Added tags received so far.

---
 Documentation/driver-api/pm/devices.rst    |  6 +++---
 Documentation/power/pci.rst                | 10 +++++-----
 drivers/base/power/main.c                  |  2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    |  2 +-
 drivers/gpu/drm/i915/intel_runtime_pm.c    |  2 +-
 drivers/gpu/drm/radeon/radeon_kms.c        |  2 +-
 drivers/misc/mei/pci-me.c                  |  2 +-
 drivers/misc/mei/pci-txe.c                 |  2 +-
 drivers/net/ethernet/intel/e1000e/netdev.c |  2 +-
 drivers/net/ethernet/intel/igb/igb_main.c  |  2 +-
 drivers/net/ethernet/intel/igc/igc_main.c  |  2 +-
 drivers/pci/pcie/portdrv_pci.c             |  2 +-
 include/linux/pm.h                         |  6 +++---
 13 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst
index f66c7b9126ea..4ace0eba4506 100644
--- a/Documentation/driver-api/pm/devices.rst
+++ b/Documentation/driver-api/pm/devices.rst
@@ -361,9 +361,9 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``.
 	runtime PM disabled.
 
 	This feature also can be controlled by device drivers by using the
-	``DPM_FLAG_NEVER_SKIP`` and ``DPM_FLAG_SMART_PREPARE`` driver power
-	management flags.  [Typically, they are set at the time the driver is
-	probed against the device in question by passing them to the
+	``DPM_FLAG_NO_DIRECT_COMPLETE`` and ``DPM_FLAG_SMART_PREPARE`` driver
+	power management flags.  [Typically, they are set at the time the driver
+	is probed against the device in question by passing them to the
 	:c:func:`dev_pm_set_driver_flags` helper function.]  If the first of
 	these flags is set, the PM core will not apply the direct-complete
 	procedure described above to the given device and, consequenty, to any
diff --git a/Documentation/power/pci.rst b/Documentation/power/pci.rst
index aa1c7fce6cd0..9e1408121bea 100644
--- a/Documentation/power/pci.rst
+++ b/Documentation/power/pci.rst
@@ -1004,11 +1004,11 @@ including the PCI bus type.  The flags should be set once at the driver probe
 time with the help of the dev_pm_set_driver_flags() function and they should not
 be updated directly afterwards.
 
-The DPM_FLAG_NEVER_SKIP flag prevents the PM core from using the direct-complete
-mechanism allowing device suspend/resume callbacks to be skipped if the device
-is in runtime suspend when the system suspend starts.  That also affects all of
-the ancestors of the device, so this flag should only be used if absolutely
-necessary.
+The DPM_FLAG_NO_DIRECT_COMPLETE flag prevents the PM core from using the
+direct-complete mechanism allowing device suspend/resume callbacks to be skipped
+if the device is in runtime suspend when the system suspend starts.  That also
+affects all of the ancestors of the device, so this flag should only be used if
+absolutely necessary.
 
 The DPM_FLAG_SMART_PREPARE flag instructs the PCI bus type to only return a
 positive value from pci_pm_prepare() if the ->prepare callback provided by the
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 3170d93e29f9..dbc1e5e7346b 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1844,7 +1844,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
 	spin_lock_irq(&dev->power.lock);
 	dev->power.direct_complete = state.event == PM_EVENT_SUSPEND &&
 		(ret > 0 || dev->power.no_pm_callbacks) &&
-		!dev_pm_test_driver_flags(dev, DPM_FLAG_NEVER_SKIP);
+		!dev_pm_test_driver_flags(dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 	spin_unlock_irq(&dev->power.lock);
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index fd1dc3236eca..a9086ea1ab60 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -191,7 +191,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
 	}
 
 	if (adev->runpm) {
-		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
+		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 		pm_runtime_use_autosuspend(dev->dev);
 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 		pm_runtime_set_active(dev->dev);
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index ad719c9602af..9cb2d7548daa 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -549,7 +549,7 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
 	 * becaue the HDA driver may require us to enable the audio power
 	 * domain during system suspend.
 	 */
-	dev_pm_set_driver_flags(kdev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(kdev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	pm_runtime_set_autosuspend_delay(kdev, 10000); /* 10s */
 	pm_runtime_mark_last_busy(kdev);
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 58176db85952..372962358a18 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -158,7 +158,7 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
 	}
 
 	if (radeon_is_px(dev)) {
-		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
+		dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 		pm_runtime_use_autosuspend(dev->dev);
 		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 		pm_runtime_set_active(dev->dev);
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 3d21c38e2dbb..53f16f3bd091 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -240,7 +240,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * MEI requires to resume from runtime suspend mode
 	 * in order to perform link reset flow upon system suspend.
 	 */
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	/*
 	 * ME maps runtime suspend/resume to D0i states,
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index beacf2a2f2b5..4bf26ce61044 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -128,7 +128,7 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * MEI requires to resume from runtime suspend mode
 	 * in order to perform link reset flow upon system suspend.
 	 */
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	/*
 	 * TXE maps runtime suspend/resume to own power gating states,
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 177c6da80c57..2730b1c7dddb 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -7549,7 +7549,7 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	e1000_print_device_info(adapter);
 
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	if (pci_dev_run_wake(pdev) && hw->mac.type < e1000_pch_cnp)
 		pm_runtime_put_noidle(&pdev->dev);
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index b46bff8fe056..8bb3db2cbd41 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3445,7 +3445,7 @@ static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		}
 	}
 
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	pm_runtime_put_noidle(&pdev->dev);
 	return 0;
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 69fa1ce1f927..59fc0097438f 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -4825,7 +4825,7 @@ static int igc_probe(struct pci_dev *pdev,
 	pcie_print_link_status(pdev);
 	netdev_info(netdev, "MAC: %pM\n", netdev->dev_addr);
 
-	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
 
 	pm_runtime_put_noidle(&pdev->dev);
 
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 160d67c59310..3acf151ae015 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -115,7 +115,7 @@ static int pcie_portdrv_probe(struct pci_dev *dev,
 
 	pci_save_state(dev);
 
-	dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NEVER_SKIP |
+	dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE |
 					   DPM_FLAG_SMART_SUSPEND);
 
 	if (pci_bridge_d3_possible(dev)) {
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 8c59a7f0bcf4..cdb8fbd6ab18 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -544,7 +544,7 @@ struct pm_subsys_data {
  * These flags can be set by device drivers at the probe time.  They need not be
  * cleared by the drivers as the driver core will take care of that.
  *
- * NEVER_SKIP: Do not skip all system suspend/resume callbacks for the device.
+ * NO_DIRECT_COMPLETE: Do not apply direct-complete optimization to the device.
  * SMART_PREPARE: Check the return value of the driver's ->prepare callback.
  * SMART_SUSPEND: No need to resume the device from runtime suspend.
  * LEAVE_SUSPENDED: Avoid resuming the device during system resume if possible.
@@ -554,7 +554,7 @@ struct pm_subsys_data {
  * their ->prepare callbacks if the driver's ->prepare callback returns 0 (in
  * other words, the system suspend/resume callbacks can only be skipped for the
  * device if its driver doesn't object against that).  This flag has no effect
- * if NEVER_SKIP is set.
+ * if NO_DIRECT_COMPLETE is set.
  *
  * Setting SMART_SUSPEND instructs bus types and PM domains which may want to
  * runtime resume the device upfront during system suspend that doing so is not
@@ -565,7 +565,7 @@ struct pm_subsys_data {
  * Setting LEAVE_SUSPENDED informs the PM core and middle-layer code that the
  * driver prefers the device to be left in suspend after system resume.
  */
-#define DPM_FLAG_NEVER_SKIP		BIT(0)
+#define DPM_FLAG_NO_DIRECT_COMPLETE	BIT(0)
 #define DPM_FLAG_SMART_PREPARE		BIT(1)
 #define DPM_FLAG_SMART_SUSPEND		BIT(2)
 #define DPM_FLAG_LEAVE_SUSPENDED	BIT(3)
-- 
2.16.4




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Re: [PATCH v2 7/9] PM: sleep: core: Rename DPM_FLAG_NEVER_SKIP

[Alex Deucher]

On Sat, Apr 18, 2020 at 1:11 PM Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
>
> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
>
> Rename DPM_FLAG_NEVER_SKIP to DPM_FLAG_NO_DIRECT_COMPLETE which
> matches its purpose more closely.
>
> No functional impact.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # for PCI parts
> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Acked-by: Alex Deucher <alexander.deucher@amd.com>
for radeon and amdgpu

Alex

> ---
>
> -> v2:
>    * Rebased.
>    * Added tags received so far.
>
> ---
>  Documentation/driver-api/pm/devices.rst    |  6 +++---
>  Documentation/power/pci.rst                | 10 +++++-----
>  drivers/base/power/main.c                  |  2 +-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    |  2 +-
>  drivers/gpu/drm/i915/intel_runtime_pm.c    |  2 +-
>  drivers/gpu/drm/radeon/radeon_kms.c        |  2 +-
>  drivers/misc/mei/pci-me.c                  |  2 +-
>  drivers/misc/mei/pci-txe.c                 |  2 +-
>  drivers/net/ethernet/intel/e1000e/netdev.c |  2 +-
>  drivers/net/ethernet/intel/igb/igb_main.c  |  2 +-
>  drivers/net/ethernet/intel/igc/igc_main.c  |  2 +-
>  drivers/pci/pcie/portdrv_pci.c             |  2 +-
>  include/linux/pm.h                         |  6 +++---
>  13 files changed, 21 insertions(+), 21 deletions(-)
>
> diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst
> index f66c7b9126ea..4ace0eba4506 100644
> --- a/Documentation/driver-api/pm/devices.rst
> +++ b/Documentation/driver-api/pm/devices.rst
> @@ -361,9 +361,9 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``.
>         runtime PM disabled.
>
>         This feature also can be controlled by device drivers by using the
> -       ``DPM_FLAG_NEVER_SKIP`` and ``DPM_FLAG_SMART_PREPARE`` driver power
> -       management flags.  [Typically, they are set at the time the driver is
> -       probed against the device in question by passing them to the
> +       ``DPM_FLAG_NO_DIRECT_COMPLETE`` and ``DPM_FLAG_SMART_PREPARE`` driver
> +       power management flags.  [Typically, they are set at the time the driver
> +       is probed against the device in question by passing them to the
>         :c:func:`dev_pm_set_driver_flags` helper function.]  If the first of
>         these flags is set, the PM core will not apply the direct-complete
>         procedure described above to the given device and, consequenty, to any
> diff --git a/Documentation/power/pci.rst b/Documentation/power/pci.rst
> index aa1c7fce6cd0..9e1408121bea 100644
> --- a/Documentation/power/pci.rst
> +++ b/Documentation/power/pci.rst
> @@ -1004,11 +1004,11 @@ including the PCI bus type.  The flags should be set once at the driver probe
>  time with the help of the dev_pm_set_driver_flags() function and they should not
>  be updated directly afterwards.
>
> -The DPM_FLAG_NEVER_SKIP flag prevents the PM core from using the direct-complete
> -mechanism allowing device suspend/resume callbacks to be skipped if the device
> -is in runtime suspend when the system suspend starts.  That also affects all of
> -the ancestors of the device, so this flag should only be used if absolutely
> -necessary.
> +The DPM_FLAG_NO_DIRECT_COMPLETE flag prevents the PM core from using the
> +direct-complete mechanism allowing device suspend/resume callbacks to be skipped
> +if the device is in runtime suspend when the system suspend starts.  That also
> +affects all of the ancestors of the device, so this flag should only be used if
> +absolutely necessary.
>
>  The DPM_FLAG_SMART_PREPARE flag instructs the PCI bus type to only return a
>  positive value from pci_pm_prepare() if the ->prepare callback provided by the
> diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
> index 3170d93e29f9..dbc1e5e7346b 100644
> --- a/drivers/base/power/main.c
> +++ b/drivers/base/power/main.c
> @@ -1844,7 +1844,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
>         spin_lock_irq(&dev->power.lock);
>         dev->power.direct_complete = state.event == PM_EVENT_SUSPEND &&
>                 (ret > 0 || dev->power.no_pm_callbacks) &&
> -               !dev_pm_test_driver_flags(dev, DPM_FLAG_NEVER_SKIP);
> +               !dev_pm_test_driver_flags(dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>         spin_unlock_irq(&dev->power.lock);
>         return 0;
>  }
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> index fd1dc3236eca..a9086ea1ab60 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> @@ -191,7 +191,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
>         }
>
>         if (adev->runpm) {
> -               dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
> +               dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>                 pm_runtime_use_autosuspend(dev->dev);
>                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
>                 pm_runtime_set_active(dev->dev);
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index ad719c9602af..9cb2d7548daa 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -549,7 +549,7 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
>          * becaue the HDA driver may require us to enable the audio power
>          * domain during system suspend.
>          */
> -       dev_pm_set_driver_flags(kdev, DPM_FLAG_NEVER_SKIP);
> +       dev_pm_set_driver_flags(kdev, DPM_FLAG_NO_DIRECT_COMPLETE);
>
>         pm_runtime_set_autosuspend_delay(kdev, 10000); /* 10s */
>         pm_runtime_mark_last_busy(kdev);
> diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
> index 58176db85952..372962358a18 100644
> --- a/drivers/gpu/drm/radeon/radeon_kms.c
> +++ b/drivers/gpu/drm/radeon/radeon_kms.c
> @@ -158,7 +158,7 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
>         }
>
>         if (radeon_is_px(dev)) {
> -               dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
> +               dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>                 pm_runtime_use_autosuspend(dev->dev);
>                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
>                 pm_runtime_set_active(dev->dev);
> diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
> index 3d21c38e2dbb..53f16f3bd091 100644
> --- a/drivers/misc/mei/pci-me.c
> +++ b/drivers/misc/mei/pci-me.c
> @@ -240,7 +240,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>          * MEI requires to resume from runtime suspend mode
>          * in order to perform link reset flow upon system suspend.
>          */
> -       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
> +       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>
>         /*
>          * ME maps runtime suspend/resume to D0i states,
> diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
> index beacf2a2f2b5..4bf26ce61044 100644
> --- a/drivers/misc/mei/pci-txe.c
> +++ b/drivers/misc/mei/pci-txe.c
> @@ -128,7 +128,7 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>          * MEI requires to resume from runtime suspend mode
>          * in order to perform link reset flow upon system suspend.
>          */
> -       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
> +       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>
>         /*
>          * TXE maps runtime suspend/resume to own power gating states,
> diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
> index 177c6da80c57..2730b1c7dddb 100644
> --- a/drivers/net/ethernet/intel/e1000e/netdev.c
> +++ b/drivers/net/ethernet/intel/e1000e/netdev.c
> @@ -7549,7 +7549,7 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>
>         e1000_print_device_info(adapter);
>
> -       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
> +       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>
>         if (pci_dev_run_wake(pdev) && hw->mac.type < e1000_pch_cnp)
>                 pm_runtime_put_noidle(&pdev->dev);
> diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
> index b46bff8fe056..8bb3db2cbd41 100644
> --- a/drivers/net/ethernet/intel/igb/igb_main.c
> +++ b/drivers/net/ethernet/intel/igb/igb_main.c
> @@ -3445,7 +3445,7 @@ static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>                 }
>         }
>
> -       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
> +       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>
>         pm_runtime_put_noidle(&pdev->dev);
>         return 0;
> diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
> index 69fa1ce1f927..59fc0097438f 100644
> --- a/drivers/net/ethernet/intel/igc/igc_main.c
> +++ b/drivers/net/ethernet/intel/igc/igc_main.c
> @@ -4825,7 +4825,7 @@ static int igc_probe(struct pci_dev *pdev,
>         pcie_print_link_status(pdev);
>         netdev_info(netdev, "MAC: %pM\n", netdev->dev_addr);
>
> -       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
> +       dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NO_DIRECT_COMPLETE);
>
>         pm_runtime_put_noidle(&pdev->dev);
>
> diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
> index 160d67c59310..3acf151ae015 100644
> --- a/drivers/pci/pcie/portdrv_pci.c
> +++ b/drivers/pci/pcie/portdrv_pci.c
> @@ -115,7 +115,7 @@ static int pcie_portdrv_probe(struct pci_dev *dev,
>
>         pci_save_state(dev);
>
> -       dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NEVER_SKIP |
> +       dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_NO_DIRECT_COMPLETE |
>                                            DPM_FLAG_SMART_SUSPEND);
>
>         if (pci_bridge_d3_possible(dev)) {
> diff --git a/include/linux/pm.h b/include/linux/pm.h
> index 8c59a7f0bcf4..cdb8fbd6ab18 100644
> --- a/include/linux/pm.h
> +++ b/include/linux/pm.h
> @@ -544,7 +544,7 @@ struct pm_subsys_data {
>   * These flags can be set by device drivers at the probe time.  They need not be
>   * cleared by the drivers as the driver core will take care of that.
>   *
> - * NEVER_SKIP: Do not skip all system suspend/resume callbacks for the device.
> + * NO_DIRECT_COMPLETE: Do not apply direct-complete optimization to the device.
>   * SMART_PREPARE: Check the return value of the driver's ->prepare callback.
>   * SMART_SUSPEND: No need to resume the device from runtime suspend.
>   * LEAVE_SUSPENDED: Avoid resuming the device during system resume if possible.
> @@ -554,7 +554,7 @@ struct pm_subsys_data {
>   * their ->prepare callbacks if the driver's ->prepare callback returns 0 (in
>   * other words, the system suspend/resume callbacks can only be skipped for the
>   * device if its driver doesn't object against that).  This flag has no effect
> - * if NEVER_SKIP is set.
> + * if NO_DIRECT_COMPLETE is set.
>   *
>   * Setting SMART_SUSPEND instructs bus types and PM domains which may want to
>   * runtime resume the device upfront during system suspend that doing so is not
> @@ -565,7 +565,7 @@ struct pm_subsys_data {
>   * Setting LEAVE_SUSPENDED informs the PM core and middle-layer code that the
>   * driver prefers the device to be left in suspend after system resume.
>   */
> -#define DPM_FLAG_NEVER_SKIP            BIT(0)
> +#define DPM_FLAG_NO_DIRECT_COMPLETE    BIT(0)
>  #define DPM_FLAG_SMART_PREPARE         BIT(1)
>  #define DPM_FLAG_SMART_SUSPEND         BIT(2)
>  #define DPM_FLAG_LEAVE_SUSPENDED       BIT(3)
> --
> 2.16.4
>
>
>
>
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> dri-devel@lists.freedesktop.org
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