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mei: drop ready bits check after start

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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>
This commit is contained in:
Alexander Usyskin 2022-09-08 00:51:10 +03:00 committed by Joonas Lahtinen
parent bc9abe0ef1
commit 267cb87001
1 changed files with 0 additions and 10 deletions
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10
drivers/misc/mei/init.c
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@ -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;