linux-kernel - [PATCH 3.12 058/127] drivers: staging: nvec: remove bogus reset command for PS/2 interface

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Message-Id: <7b95b08e333e10ef842b02ac4cba0426bd8725d4.1480062521.git.jslaby@suse.cz>
Date:   Fri, 25 Nov 2016 09:29:31 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Paul Fertser <fercerpav@...il.com>,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 058/127] drivers: staging: nvec: remove bogus reset command for PS/2 interface

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

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

===============

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: Jiri Slaby <jslaby@...e.cz>
---
 drivers/staging/nvec/nvec_ps2.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index 06dbb02085a9..89bfc0625be7 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -104,7 +104,6 @@ static int nvec_mouse_probe(struct platform_device *pdev)
 {
 	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 = kzalloc(sizeof(struct serio), GFP_KERNEL);
 	if (ser_dev == NULL)
@@ -125,9 +124,6 @@ static int nvec_mouse_probe(struct platform_device *pdev)
 
 	serio_register_port(ser_dev);
 
-	/* mouse reset */
-	nvec_write_async(nvec, mouse_reset, sizeof(mouse_reset));
-
 	return 0;
 }
 
-- 
2.10.2