AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-28 11:18:45 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

usb: typec: ucsi: Workaround for missed op_mode change

Browse Source 
EC firmware on Dell XPS & Latitude series does not set "Power Operation
Mode Change" bit in "Connector Status change" field of MESSAGE IN Data
while transitioning from type-C current to PD mode.

Instead the "Negotiated Power Level Change" bit is set when the "Power
Operation Mode" field shows the correct mode (i.e. PD).

This patch adds a check for this bit also, to trigger an update of
power operation mode in class driver, while handling GET_CONNECTOR_STATUS
command.

Signed-off-by: K V, Abhilash <abhilash.k.v@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200423132058.6972-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K V, Abhilash 2020-04-23 16:20:54 +03:00 committed by Greg Kroah-Hartman
parent 91813ef8da
commit a0d4618788
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/typec/ucsi/ucsi.c
View File

@ -613,7 +613,8 @@ static void ucsi_handle_connector_change(struct work_struct *work)
role = !!(con->status.flags & UCSI_CONSTAT_PWR_DIR);
if (con->status.change & UCSI_CONSTAT_POWER_OPMODE_CHANGE)
if (con->status.change & UCSI_CONSTAT_POWER_OPMODE_CHANGE ||
con->status.change & UCSI_CONSTAT_POWER_LEVEL_CHANGE)
ucsi_pwr_opmode_change(con);
if (con->status.change & UCSI_CONSTAT_POWER_DIR_CHANGE) {