usb: typec: tcpm: fix multiple times discover svids error
stable inclusion from stable-v5.10.181 commit 7ed30db879940822e8a392d402760eff56df0d57 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8GJZJ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7ed30db879940822e8a392d402760eff56df0d57 -------------------------------- [ Upstream commit dac3b192 ] PD3.0 Spec 6.4.4.3.2 say that only Responder supports 12 or more SVIDs, the Discover SVIDs Command Shall be executed multiple times until a Discover SVIDs VDO is returned ending either with a SVID value of 0x0000 in the last part of the last VDO or with a VDO containing two SVIDs with values of 0x0000. In the current implementation, if the last VDO does not find that the Discover SVIDs Command would be executed multiple times even if the Responder SVIDs are less than 12, and we found some odd dockers just meet this case. So fix it. Acked-by:Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by:
Frank Wang <frank.wang@rock-chips.com> Link: https://lore.kernel.org/r/20230316081149.24519-1-frank.wang@rock-chips.com Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Sasha Levin <sashal@kernel.org> Signed-off-by:
sanglipeng <sanglipeng1@jd.com> (cherry picked from commit 8039a05e)
Loading
Please sign in to comment