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...er <lukas at wunner.de> > --- > drivers/pci/pci-driver.c | 8 ++++++-- > drivers/pci/pci.c | 2 +- > drivers/pci/pci.h | 1 + > 3 files changed, 8 insertions(+), 3 deletions(-) > > diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c > index 3bed6beda051..51b11cbd48f6 100644 > --- a/drivers/pci/pci-driver.c > +++ b/drivers/pci/pci-driver.c > @@ -1277,10 +1277,14 @@ static int pci_pm_runtime_resume(struct device *dev) > > /* > * If pci_dev->driver is not set (unbound), the device should > - * always remain in D0 regar...

...ve_state() / pci_restore_state() for consistency between runtime PM code path of bound and unbound devices. (Rafael, Bjorn) drivers/pci/pci-driver.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 3bed6beda051..6a67cdbd0e6a 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1224,11 +1224,14 @@ static int pci_pm_runtime_suspend(struct device *dev) int error; /* - * If pci_dev->driver is not set (unbound), the device should - * always remain in D0 regardless of the runtime...

...intel.com> Signed-off-by: Lukas Wunner <lukas at wunner.de> --- drivers/pci/pci-driver.c | 8 ++++++-- drivers/pci/pci.c | 2 +- drivers/pci/pci.h | 1 + 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 3bed6beda051..51b11cbd48f6 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1277,10 +1277,14 @@ static int pci_pm_runtime_resume(struct device *dev) /* * If pci_dev->driver is not set (unbound), the device should - * always remain in D0 regardless of the runtime PM status + *...

...gt;> --- >> drivers/pci/pci-driver.c | 8 ++++++-- >> drivers/pci/pci.c | 2 +- >> drivers/pci/pci.h | 1 + >> 3 files changed, 8 insertions(+), 3 deletions(-) >> >> diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c >> index 3bed6beda051..51b11cbd48f6 100644 >> --- a/drivers/pci/pci-driver.c >> +++ b/drivers/pci/pci-driver.c >> @@ -1277,10 +1277,14 @@ static int pci_pm_runtime_resume(struct device *dev) >> >> /* >> * If pci_dev->driver is not set (unbound), the device should >&...

...pci/pci-driver.c | 8 ++++++-- > >> drivers/pci/pci.c | 2 +- > >> drivers/pci/pci.h | 1 + > >> 3 files changed, 8 insertions(+), 3 deletions(-) > >> > >> diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c > >> index 3bed6beda051..51b11cbd48f6 100644 > >> --- a/drivers/pci/pci-driver.c > >> +++ b/drivers/pci/pci-driver.c > >> @@ -1277,10 +1277,14 @@ static int pci_pm_runtime_resume(struct device *dev) > >> > >> /* > >> * If pci_dev->driver is not set (unb...

Modernize vga_switcheroo by using a "device link" to enforce a runtime PM dependency from an HDA controller to the GPU it's integrated into. Remove thereby obsoleted code and fix a bunch of bugs. Device links were introduced in v4.10. Users might see a small power saving if the discrete GPU is in use and its HDA controller is not, because the HDA controller is now allowed to runtime

Modernize vga_switcheroo by using a device link to enforce a runtime PM dependency from an HDA controller to the GPU it's integrated into, v2. Changes since v1: - Replace patch [1/7] to use pci_save_state() / pci_restore_state() for consistency between runtime PM code path of bound and unbound devices. (Rafael, Bjorn) - Patch [5/7]: Drop an unnecessary initialization. (Bjorn) Rephrase