linux-kernel - [PATCH 5.4 138/142] Revert "Input: i8042 - add ThinkPad S230u to i8042 nomux list"

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Date:   Mon,  1 Jun 2020 19:54:56 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org
Subject: [PATCH 5.4 138/142] Revert "Input: i8042 - add ThinkPad S230u to i8042 nomux list"

From: Dmitry Torokhov <dmitry.torokhov@...il.com>

commit f4dec2d6160976b14e54be9c3950ce0f52385741 upstream.

This reverts commit 18931506465a762ffd3f4803d36a18d336a67da9. From Kevin
Locke:

"... nomux only appeared to fix the issue because the controller
continued working after warm reboots. After more thorough testing from
both warm and cold start, I now believe the entry should be added to
i8042_dmi_reset_table rather than i8042_dmi_nomux_table as i8042.reset=1
alone is sufficient to avoid the issue from both states while
i8042.nomux is not."

Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/input/serio/i8042-x86ia64io.h |    7 -------
 1 file changed, 7 deletions(-)

--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -541,13 +541,6 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
 		},
 	},
-	{
-		/* Lenovo ThinkPad Twist S230u */
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
-		},
-	},
 	{ }
 };