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authorDmitry Torokhov <dtor@insightbb.com>2007-03-18 17:41:28 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-03-23 12:49:26 -0700
commitc04a52befd3ae4bdb755fd1e4538d20a6711fd5b (patch)
treedec306cb4893fbe1e9f38366d860704236f3b3d6
parent6c3f05964e7b82a9965fd4934ba470cf533172ed (diff)
downloadlinux-linaro-stable-c04a52befd3ae4bdb755fd1e4538d20a6711fd5b.tar.gz
Input: i8042 - really suppress ACK/NAK during panic blink
Input: i8042 - really suppress ACK/NAK during panic blink On some boxes panic blink procedure manages to send both bytes to keyboard contoller before getting first ACK so we need to make i8042_suppress_kbd_ack a counter instead of boolean. Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/input/serio/i8042.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index debe9445488c..1364c7964db4 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -371,7 +371,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id)
if (unlikely(i8042_suppress_kbd_ack))
if (port_no == I8042_KBD_PORT_NO &&
(data == 0xfa || data == 0xfe)) {
- i8042_suppress_kbd_ack = 0;
+ i8042_suppress_kbd_ack--;
goto out;
}
@@ -838,13 +838,14 @@ static long i8042_panic_blink(long count)
led ^= 0x01 | 0x04;
while (i8042_read_status() & I8042_STR_IBF)
DELAY;
- i8042_suppress_kbd_ack = 1;
+ dbg("%02x -> i8042 (panic blink)", 0xed);
+ i8042_suppress_kbd_ack = 2;
i8042_write_data(0xed); /* set leds */
DELAY;
while (i8042_read_status() & I8042_STR_IBF)
DELAY;
DELAY;
- i8042_suppress_kbd_ack = 1;
+ dbg("%02x -> i8042 (panic blink)", led);
i8042_write_data(led);
DELAY;
last_blink = count;