[PATCH 1/7] usb: typec: ucsi: Always cancel the command if PPM reports BUSY condition
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: 2021-09-20 14:24:20
Subsystem:
the rest, usb subsystem, usb typec class · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Heikki Krogerus
This makes it possible to execute next command immediately after the busy condition. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> --- drivers/usb/typec/ucsi/ucsi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 5ef5bd0e87cf2..ffb5be51daf85 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c@@ -128,8 +128,10 @@ static int ucsi_exec_command(struct ucsi *ucsi, u64 cmd) if (ret) return ret; - if (cci & UCSI_CCI_BUSY) + if (cci & UCSI_CCI_BUSY) { + ucsi->ops->async_write(ucsi, UCSI_CANCEL, NULL, 0); return -EBUSY; + } if (!(cci & UCSI_CCI_COMMAND_COMPLETE)) return -EIO;
--
2.33.0