search for: mux_hw_lock

...declare their capabilities in a bitmask. DRM drivers call drm_get_edid_switcheroo() only if the handler has set the VGA_SWITCHEROO_CAN_SWITCH_DDC flag. Currently just one other flag is defined which is used on retinas. * Changed patch [02/12]: vga_switcheroo DDC locking Rename ddc_lock to mux_hw_lock, suggested by Daniel Vetter. * New patch [03/12]: track switch state of apple-gmux Fixes a bug in previous versions of this series which occurred if the system was suspended while DDC was temporarily switched: On resume DDC was switched to the wrong GPU. * New patches [09/12 - 12/12]: defer...

...> a bitmask. DRM drivers call drm_get_edid_switcheroo() only if the > handler has set the VGA_SWITCHEROO_CAN_SWITCH_DDC flag. > Currently just one other flag is defined which is used on retinas. > > * Changed patch [02/12]: vga_switcheroo DDC locking > Rename ddc_lock to mux_hw_lock, suggested by Daniel Vetter. > > * New patch [03/12]: track switch state of apple-gmux > Fixes a bug in previous versions of this series which occurred if > the system was suspended while DDC was temporarily switched: > On resume DDC was switched to the wrong GPU. > > *...

...ivers call drm_get_edid_switcheroo() only if the > > handler has set the VGA_SWITCHEROO_CAN_SWITCH_DDC flag. > > Currently just one other flag is defined which is used on retinas. > > > > * Changed patch [02/12]: vga_switcheroo DDC locking > > Rename ddc_lock to mux_hw_lock, suggested by Daniel Vetter. > > > > * New patch [03/12]: track switch state of apple-gmux > > Fixes a bug in previous versions of this series which occurred if > > the system was suspended while DDC was temporarily switched: > > On resume DDC was switched to th...

...> a bitmask. DRM drivers call drm_get_edid_switcheroo() only if the > handler has set the VGA_SWITCHEROO_CAN_SWITCH_DDC flag. > Currently just one other flag is defined which is used on retinas. > > * Changed patch [02/12]: vga_switcheroo DDC locking > Rename ddc_lock to mux_hw_lock, suggested by Daniel Vetter. > > * New patch [03/12]: track switch state of apple-gmux > Fixes a bug in previous versions of this series which occurred if > the system was suspended while DDC was temporarily switched: > On resume DDC was switched to the wrong GPU. > > *...

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

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