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

PPC PMAC driver
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: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Benjamin Herrenschmidt 2005-05-18 16:31:51 +02:00 committed by Jaroslav Kysela
parent 9502dcad6c
commit 5218064c88
1 changed files with 19 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
sound/ppc/pmac.c
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@ -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;