Commit 267cb870 authored by Alexander Usyskin's avatar Alexander Usyskin Committed by Joonas Lahtinen
Browse files

mei: drop ready bits check after start 



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: default avatarAlexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Reviewed-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907215113.1596567-14-tomas.winkler@intel.com


Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
parent bc9abe0e

drivers/misc/mei/init.c

+0 −10
Original line number Diff line number Diff line
@@ -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;