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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Michael Schmitz <schmitzmic@gmail.com>,
        Andreas Schwab <schwab@linux-m68k.org>,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 4.4 38/48] Input: atakbd - fix Atari CapsLock behaviour
Date:   Thu, 18 Oct 2018 19:55:13 +0200
Message-Id: <20181018175429.965870946@linuxfoundation.org>
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4.4-stable review patch.  If anyone has any objections, please let me know.

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

From: Michael Schmitz <schmitzmic@gmail.com>

[ Upstream commit 52d2c7bf7c90217fbe875d2d76f310979c48eb83 ]

The CapsLock key on Atari keyboards is not a toggle, it does send the
normal make and break scancodes.

Drop the CapsLock toggle handling code, which did cause the CapsLock
key to merely act as a Shift key.

Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/keyboard/atakbd.c |   10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

--- a/drivers/input/keyboard/atakbd.c
+++ b/drivers/input/keyboard/atakbd.c
@@ -189,14 +189,8 @@ static void atakbd_interrupt(unsigned ch
 
 		scancode = atakbd_keycode[scancode];
 
-		if (scancode == KEY_CAPSLOCK) {	/* CapsLock is a toggle switch key on Amiga */
-			input_report_key(atakbd_dev, scancode, 1);
-			input_report_key(atakbd_dev, scancode, 0);
-			input_sync(atakbd_dev);
-		} else {
-			input_report_key(atakbd_dev, scancode, down);
-			input_sync(atakbd_dev);
-		}
+		input_report_key(atakbd_dev, scancode, down);
+		input_sync(atakbd_dev);
 	} else				/* scancodes >= 0xf3 are mouse data, most likely */
 		printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);