[PATCH v9 13/16] mei: drop ready bits check after start

From: Tomas Winkler
Date: Wed Sep 07 2022 - 17:52:43 EST


From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>

The check that hardware and host ready bits are set after start
is redundant and may fail and disable driver if there is
back-to-back link reset issued right after start.
This happens during pxp mode transitions when firmware
undergo reset. Remove these checks to eliminate such failures.

Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
---
V8: New in the series
V9: Rebase

drivers/misc/mei/init.c | 10 ----------
1 file changed, 10 deletions(-)

diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 1b4d5d7870b9..bac8852aad51 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -218,16 +218,6 @@ int mei_start(struct mei_device *dev)
goto err;
}

- if (!mei_host_is_ready(dev)) {
- dev_err(dev->dev, "host is not ready.\n");
- goto err;
- }
-
- if (!mei_hw_is_ready(dev)) {
- dev_err(dev->dev, "ME is not ready.\n");
- goto err;
- }
-
if (!mei_hbm_version_is_supported(dev)) {
dev_dbg(dev->dev, "MEI start failed.\n");
goto err;
--
2.37.2