This fixes quite a number of runtime PM bugs I found that have been causing some pretty nasty issues such as: - Deadlocking on boot - Connector probing potentially not working while the GPU is in runtime suspend - i2c char dev not working while the GPU is in runtime suspend - aux char dev not working while the GPU is in runtime suspend
There's definitely more parts of nouveau that need to be fixed to use runtime power management correctly, such as the hwmon portions, but this series just handles the more important fixes that should get into stable for the time being.
Cc: Karol Herbst karolherbst@gmail.com Cc: stable@vger.kernel.org
Lyude Paul (5): drm/nouveau: Prevent RPM callback recursion in suspend/resume paths drm/nouveau: Grab RPM ref while probing outputs drm/nouveau: Add missing RPM get/put() when probing connectors drm/nouveau: Grab RPM ref when i2c bus is in use drm/nouveau: Grab RPM ref when aux bus is in use
drivers/gpu/drm/nouveau/dispnv50/disp.c | 12 +++++++++-- drivers/gpu/drm/nouveau/nouveau_connector.c | 21 +++++++++++++++++-- drivers/gpu/drm/nouveau/nouveau_connector.h | 3 +++ drivers/gpu/drm/nouveau/nouveau_drm.c | 10 ++++++++- drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c | 12 ++++++++++- drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c | 12 ++++++++++- 6 files changed, 63 insertions(+), 7 deletions(-)