Input: atkbd - handle keyboards generating scancode 0x7f

Extend bat_xl handling to do err_xl handling, so that
keyboards using 0x7f scancode for regular keys can work.

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 4d4985b59abf..1ad8c2ee7dbf 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -208,6 +208,7 @@ struct atkbd {
         unsigned char resend;
         unsigned char release;
         unsigned char bat_xl;
+        unsigned char err_xl;
         unsigned int last;
         unsigned long time;
 };
@@ -296,15 +297,18 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
                 if (atkbd->emul ||
                     !(code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1 ||
                       code == ATKBD_RET_HANGUEL || code == ATKBD_RET_HANJA ||
-                      code == ATKBD_RET_ERR ||
+                     (code == ATKBD_RET_ERR && !atkbd->err_xl) ||
                      (code == ATKBD_RET_BAT && !atkbd->bat_xl))) {
                         atkbd->release = code >> 7;
                         code &= 0x7f;
                 }
 
-                if (!atkbd->emul &&
-                     (code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
+                if (!atkbd->emul) {
+                     if ((code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
                         atkbd->bat_xl = !atkbd->release;
+                     if ((code & 0x7f) == (ATKBD_RET_ERR & 0x7f))
+                        atkbd->err_xl = !atkbd->release;
+                }
         }
 
         switch (code) {