提交 a7dc438b 编写于 作者: L Linyu Yuan 提交者: Greg Kroah-Hartman

usb: typec: ucsi: Acknowledge the GET_ERROR_STATUS command completion

We found PPM will not send any notification after it report error status
and OPM issue GET_ERROR_STATUS command to read the details about error.

According UCSI spec, PPM may clear the Error Status Data after the OPM
has acknowledged the command completion.

This change add operation to acknowledge the command completion from PPM.

Fixes: bdc62f2b (usb: typec: ucsi: Simplified registration and I/O API)
Cc: <stable@vger.kernel.org> # 5.10
Signed-off-by: NJack Pham <quic_jackp@quicinc.com>
Signed-off-by: NLinyu Yuan <quic_linyyuan@quicinc.com>
Link: https://lore.kernel.org/r/1658817949-4632-1-git-send-email-quic_linyyuan@quicinc.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
上级 c3ffc9c4
...@@ -76,6 +76,10 @@ static int ucsi_read_error(struct ucsi *ucsi) ...@@ -76,6 +76,10 @@ static int ucsi_read_error(struct ucsi *ucsi)
if (ret) if (ret)
return ret; return ret;
ret = ucsi_acknowledge_command(ucsi);
if (ret)
return ret;
switch (error) { switch (error) {
case UCSI_ERROR_INCOMPATIBLE_PARTNER: case UCSI_ERROR_INCOMPATIBLE_PARTNER:
return -EOPNOTSUPP; return -EOPNOTSUPP;
......
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