search for: pci_d3cold_enable

Displaying 4 results from an estimated 4 matches for "pci_d3cold_enable".

2016 Aug 25
1
[PATCH] drm/nouveau/acpi: use DSM if bridge does not support D3cold
Even if PR3 support is available on the bridge, it will not be used if the PCI layer considers it unavailable (i.e. on all laptops from 2013 and 2014). Ensure that this condition is checked to allow a fallback to the Optimus DSM for device poweroff. Initially I wanted to call pci_d3cold_enable before checking bridge_d3 (in case the user changed d3cold_allowed), but that is such an unlikely case and likely fragile anyway. The current patch is suggested by Mika in http://www.spinics.net/lists/linux-pci/msg52599.html Cc: Mika Westerberg <mika.westerberg at linux.intel.com> Signed-off...
2018 Feb 18
0
[PATCH 2/7] PCI: Make pci_wakeup_bus() & pci_bus_set_current_state() public
...D3cold); return ret; } EXPORT_SYMBOL_GPL(__pci_complete_power_transition); diff --git a/include/linux/pci.h b/include/linux/pci.h index 024a1beda008..ae42289662df 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1147,6 +1147,8 @@ void pci_pme_wakeup_bus(struct pci_bus *bus); void pci_d3cold_enable(struct pci_dev *dev); void pci_d3cold_disable(struct pci_dev *dev); bool pcie_relaxed_ordering_enabled(struct pci_dev *dev); +void pci_wakeup_bus(struct pci_bus *bus); +void pci_bus_set_current_state(struct pci_bus *bus, pci_power_t state); /* PCI Virtual Channel */ int pci_save_vc_state(stru...
2018 Feb 18
12
[PATCH 0/7] Modernize vga_switcheroo by using device link for HDA
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
2018 Mar 03
12
[PATCH v2 0/7] Modernize vga_switcheroo by using device link for HDA
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