[ALSA] Add MPU401_INFO_NO_ACK bitflag
Added MPU401_INFO_NO_ACK bitflag to ignore the ACK check for UART
commands. VT172x doesn't handle ACK commands, for example.
Tested-by: Pavel Hofman <pavel.hofman@insite.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c
index 18cca24..2af0999 100644
--- a/sound/drivers/mpu401/mpu401_uart.c
+++ b/sound/drivers/mpu401/mpu401_uart.c
@@ -243,7 +243,7 @@
#endif
}
mpu->write(mpu, cmd, MPU401C(mpu));
- if (ack) {
+ if (ack && !(mpu->info_flags & MPU401_INFO_NO_ACK)) {
ok = 0;
timeout = 10000;
while (!ok && timeout-- > 0) {
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index 4490422..681fbbd 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -2429,6 +2429,7 @@
if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ICE1712,
ICEREG1724(ice, MPU_CTRL),
(MPU401_INFO_INTEGRATED |
+ MPU401_INFO_NO_ACK |
MPU401_INFO_TX_IRQ),
ice->irq, 0,
&ice->rmidi[0])) < 0) {