linux-kernel - [PATCH 3.18 052/145] drivers: staging: nvec: remove bogus reset command for PS/2 interface

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Message-Id: <20170416080203.309282848@linuxfoundation.org>
Date:   Sun, 16 Apr 2017 12:49:05 +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, Paul Fertser <fercerpav@...il.com>,
        Marc Dietrich <marvin24@....de>
Subject: [PATCH 3.18 052/145] drivers: staging: nvec: remove bogus reset command for PS/2 interface

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Paul Fertser <fercerpav@...il.com>

commit d8f8a74d5fece355d2234e1731231d1aebc66b38 upstream.

This command was sent behind serio's back and the answer to it was
confusing atkbd probe function which lead to the elantech touchpad
getting detected as a keyboard.

To prevent this from happening just let every party do its part of the
job.

Signed-off-by: Paul Fertser <fercerpav@...il.com>
Acked-by: Marc Dietrich <marvin24@....de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/nvec/nvec_ps2.c |    4 ----
 1 file changed, 4 deletions(-)

--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -106,7 +106,6 @@ static int nvec_mouse_probe(struct platf
 {
 	struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
 	struct serio *ser_dev;
-	char mouse_reset[] = { NVEC_PS2, SEND_COMMAND, PSMOUSE_RST, 3 };
 
 	ser_dev = devm_kzalloc(&pdev->dev, sizeof(struct serio), GFP_KERNEL);
 	if (ser_dev == NULL)
@@ -127,9 +126,6 @@ static int nvec_mouse_probe(struct platf
 
 	serio_register_port(ser_dev);
 
-	/* mouse reset */
-	nvec_write_async(nvec, mouse_reset, sizeof(mouse_reset));
-
 	return 0;
 }