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ALSA: do not create OPL3 timers if there is no OPL3 irq wired

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Most cards have OPL3 FM synthetiser but
they do not have OPL3 interrupt wired to
a sound chip or CPU.

Do not create OPL3 timers for such cards
as the timers are useless witthout interrupt.

This patch removes OPL3 timers for following
alsa drivers: snd-ad1816a, snd-opti93x,
snd-opti92x, snd-sc6000, snd-cmi8330.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Krzysztof Helt
2009-01-21 15:08:03 +01:00
committed by Takashi Iwai
parent 48972cc510
commit aa9c293ae4
4 changed files with 4 additions and 21 deletions
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7
sound/isa/ad1816a/ad1816a.c
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@@ -207,11 +207,8 @@ static int __devinit snd_card_ad1816a_probe(int dev, struct pnp_card_link *pcard
OPL3_HW_AUTO, 0, &opl3) < 0) {
printk(KERN_ERR PFX "no OPL device at 0x%lx-0x%lx.\n", fm_port[dev], fm_port[dev] + 2);
} else {
if ((error = snd_opl3_timer_new(opl3, 1, 2)) < 0) {
snd_card_free(card);
return error;
}
if ((error = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
if (error < 0) {
snd_card_free(card);
return error;
}