kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-10 20:48:12 +00:00
Code Issues Releases Packages Activity

MHI fixes for v5.18

Browse source 
Couple of patches fixing the hibernation issue seen on MHI endpoint devices like
 SDX65 modems:
 
 - During hibernation, the host puts the device into D3cold after thaw() stage.
 But at that time, the device would be in M0 state. So the device emits a
 warning (not visible to the host but to device firmware only) stating invalid
 transition. This is fixed by adding a poweroff() callback that puts the device
 into M3 before D3cold.
 
 - There is a possibility that the recovery worker might be running while trying
 to powerdown the device. So flush the recovery worker before that.
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEZ6VDKoFIy9ikWCeXVZ8R5v6RzvUFAmJWjlgACgkQVZ8R5v6R
 zvVCBAf+IbM923JOgGtevCqvStFSEBsHUqr8XZSAhNLD6MdeITlNGbkd3Esf/Tl7
 09+mn6mXX5Y0vKKyXqO9g52MBaiaVeTKdoqreYQjAVQVxFAFX1n3+WF/oh7E915Q
 WnTYmJ/XEcM+v1XZNWlrmc9pzbvLzr7c+1aWav7/cn90MXDa1uTIudX1Unjzt9E0
 SWmyVgIFgLDU7oNznp1O7G9kpimu9IAntZOtkUl/r6c66bR4nrb3X6w1yicp7mvj
 wLamYc8iaHohxpfCApKo+yXuvAKdib98W71a39UdbJ32fj9duORMGjC4pnckL+dx
 JmGQ3nENuSdJcZjNCudlOH3G6a156g==
 =9xW7
 -----END PGP SIGNATURE-----

Merge tag 'mhi-fixes-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi into char-misc-linus

Manivannan writes:

MHI fixes for v5.18

Couple of patches fixing the hibernation issue seen on MHI endpoint devices like
SDX65 modems:

- During hibernation, the host puts the device into D3cold after thaw() stage.
But at that time, the device would be in M0 state. So the device emits a
warning (not visible to the host but to device firmware only) stating invalid
transition. This is fixed by adding a poweroff() callback that puts the device
into M3 before D3cold.

- There is a possibility that the recovery worker might be running while trying
to powerdown the device. So flush the recovery worker before that.

* tag 'mhi-fixes-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi:
  bus: mhi: host: pci_generic: Flush recovery worker during freeze
  bus: mhi: host: pci_generic: Add missing poweroff() PM callback
This commit is contained in:
Greg Kroah-Hartman 2022-04-22 15:45:22 +02:00
commit e90d20c9df
1 changed files with 2 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files