From 94794657494daf47cc99bc1da522c154779ad6a5 Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Thu, 8 Sep 2022 00:51:10 +0300
Subject: mei: drop ready bits check after start
Git-commit: 267cb87001651ffbb8501be3fe970f32d5858afe
Patch-mainline: v6.1-rc1
References: jsc#PED-1218
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@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907215113.1596567-14-tomas.winkler@intel.com
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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;
--
2.39.0