From c04a52befd3ae4bdb755fd1e4538d20a6711fd5b Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Sun, 18 Mar 2007 17:41:28 -0400 Subject: [PATCH] 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 Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/serio/i8042.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index debe9445488c0..1364c7964db47 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; -- 2.47.2