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[ALSA] AMD Au1x00: AC'97 controller is memory mapped
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Modules: MIPS AU1x00 driver

AMD Au1x00 ALSA driver erroneously calls request_region() for AC'97
controller registers -- the controller is actually memory mapped at
addresses 0x10000000 thru 0x100FFFFF.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Sergei Shtylyov authored and Jaroslav Kysela committed Mar 22, 2006
1 parent bb160b8 commit c5c079e
Showing 1 changed file with 4 additions and 3 deletions.
7 changes: 4 additions & 3 deletions sound/mips/au1x00.c
Original file line number Diff line number Diff line change
Expand Up @@ -561,12 +561,13 @@ snd_au1000_ac97_new(struct snd_au1000 *au1000)
.read = snd_au1000_ac97_read,
};

if ((au1000->ac97_res_port = request_region(AC97C_CONFIG,
sizeof(struct au1000_ac97_reg), "Au1x00 AC97")) == NULL) {
if ((au1000->ac97_res_port = request_mem_region(CPHYSADDR(AC97C_CONFIG),
0x100000, "Au1x00 AC97")) == NULL) {
snd_printk(KERN_ERR "ALSA AC97: can't grap AC97 port\n");
return -EBUSY;
}
au1000->ac97_ioport = (struct au1000_ac97_reg *) au1000->ac97_res_port->start;
au1000->ac97_ioport = (struct au1000_ac97_reg *)
KSEG1ADDR(au1000->ac97_res_port->start);

spin_lock_init(&au1000->ac97_lock);

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