averello/linux-stable-mirror
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2026-09-22 09:34:56 +02:00
Code Issues Packages Projects Releases Wiki Activity

usb: typec: tcpm: Fix VDM type for Enter Mode commands

Browse Source 
[ Upstream commit 9cff680e47 ]

VDO() second parameter is VDM type (bit 15): 1 for SVDM, 0 for UVDM.
Using 'vdo ? 2 : 1' corrupts SVID low bit when vdo is non-NULL
(2 << 15 = BIT(16)). Enter Mode is always SVDM, hardcode to 1.

Fixes: 8face9aa57 ("usb: typec: Add parameter for the VDO to typec_altmode_enter()")
Cc: stable <stable@kernel.org>
Signed-off-by: Andy Yan <andyshrk@163.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260604105059.18750-1-andyshrk@163.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Yan
2026-07-24 16:03:51 +02:00
committed by Greg Kroah-Hartman
parent f2a6abc670
commit f37d00b9d2
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/usb/typec/tcpm/tcpm.c
+1 -1
View File
@@ -2237,7 +2237,7 @@ static int tcpm_altmode_enter(struct typec_altmode *altmode, u32 *vdo)
if (svdm_version < 0)
return svdm_version;
header = VDO(altmode->svid, vdo ? 2 : 1, svdm_version, CMD_ENTER_MODE);
header = VDO(altmode->svid, 1, svdm_version, CMD_ENTER_MODE);
header |= VDO_OPOS(altmode->mode);
tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0);