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From:   Tomas Winkler <tomas.winkler@intel.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>
Cc:     Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        Tomas Winkler <tomas.winkler@intel.com>,
        Alexander Usyskin <alexander.usyskin@intel.com>,
        Vitaly Lubart <vitaly.lubart@intel.com>,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Subject: [PATCH v9 13/16] mei: drop ready bits check after start
Date:   Thu,  8 Sep 2022 00:51:10 +0300
Message-Id: <20220907215113.1596567-14-tomas.winkler@intel.com>
In-Reply-To: <20220907215113.1596567-1-tomas.winkler@intel.com>
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From: Alexander Usyskin <alexander.usyskin@intel.com>

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>
---
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