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[PATCH] ppc32: Fix Alsa PowerMac driver on old machines 

The g5 support code broke some earlier models unfortunately as those bail
out early from the detect function, before the point where I added the code
to locate the PCI device for use with DMA allocations.

This patch fixes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Benjamin Herrenschmidt 2005-05-27 12:52:57 -07:00 committed by Linus Torvalds
parent d6649bc76a
commit 9ae250d175
1 changed files with 19 additions and 11 deletions
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30
sound/ppc/pmac.c
View File

@ -876,7 +876,7 @@ static void __init detect_byte_swap(pmac_t *chip)
*/
static int __init snd_pmac_detect(pmac_t *chip)
{
struct device_node *sound;
struct device_node *sound = NULL;
unsigned int *prop, l;
struct macio_chip* macio;
@ -906,20 +906,22 @@ static int __init snd_pmac_detect(pmac_t *chip)
chip->is_pbook_G3 = 1;
chip->node = find_devices("awacs");
if (chip->node)
return 0; /* ok */
sound = chip->node;
/*
* powermac G3 models have a node called "davbus"
* with a child called "sound".
*/
chip->node = find_devices("davbus");
if (!chip->node)
chip->node = find_devices("davbus");
/*
* if we didn't find a davbus device, try 'i2s-a' since
* this seems to be what iBooks have
*/
if (! chip->node) {
chip->node = find_devices("i2s-a");
if (chip->node && chip->node->parent && chip->node->parent->parent) {
if (chip->node && chip->node->parent &&
chip->node->parent->parent) {
if (device_is_compatible(chip->node->parent->parent,
"K2-Keylargo"))
chip->is_k2 = 1;
@ -928,9 +930,11 @@ static int __init snd_pmac_detect(pmac_t *chip)
if (! chip->node)
return -ENODEV;
sound = find_devices("sound");
while (sound && sound->parent != chip->node)
sound = sound->next;
if (!sound) {
sound = find_devices("sound");
while (sound && sound->parent != chip->node)
sound = sound->next;
}
if (! sound)
return -ENODEV;
prop = (unsigned int *) get_property(sound, "sub-frame", NULL);
@ -1019,7 +1023,8 @@ static int __init snd_pmac_detect(pmac_t *chip)
}
}
if (chip->pdev == NULL)
printk(KERN_WARNING "snd-powermac: can't locate macio PCI device !\n");
printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
" device !\n");
detect_byte_swap(chip);
@ -1027,7 +1032,8 @@ static int __init snd_pmac_detect(pmac_t *chip)
are available */
prop = (unsigned int *) get_property(sound, "sample-rates", &l);
if (! prop)
prop = (unsigned int *) get_property(sound, "output-frame-rates", &l);
prop = (unsigned int *) get_property(sound,
"output-frame-rates", &l);
if (prop) {
int i;
chip->freqs_ok = 0;
@ -1054,7 +1060,8 @@ static int __init snd_pmac_detect(pmac_t *chip)
/*
* exported - boolean info callbacks for ease of programming
*/
int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol,
snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 2;
@ -1063,7 +1070,8 @@ int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *
return 0;
}
int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol,
snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;