diff options
| author | K V, Abhilash <abhilash.k.v@intel.com> | 2020-04-23 16:20:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-23 15:33:33 +0200 |
| commit | a0d4618788f26bd6f31f80a00f922f1c4bc66457 (patch) | |
| tree | 15c798ce16377195a8a13e22d0f6a2831b893cbe /drivers/usb/typec | |
| parent | 91813ef8da12fad01ee4aadd173504feefe60293 (diff) | |
| download | linux-a0d4618788f26bd6f31f80a00f922f1c4bc66457.tar.bz2 | |
usb: typec: ucsi: Workaround for missed op_mode change
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>
Diffstat (limited to 'drivers/usb/typec')
| -rw-r--r-- | drivers/usb/typec/ucsi/ucsi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index e9baa9a749e5..0c7c3f9b1b50 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -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) { |