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[POWERPC] sound: Constify & voidify get_property()

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Now that get_property() returns a void *, there's no need to cast its
return value. Also, treat the return value as const, so we can
constify get_property later.

powerpc-specific sound driver changes.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Jeremy Kerr 2006-07-12 15:41:18 +10:00 committed by Paul Mackerras
parent 1a2509c946
commit abddd185a0
3 changed files with 15 additions and 13 deletions
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2
sound/aoa/core/snd-aoa-gpio-feature.c
View File

@ -56,7 +56,7 @@ static struct device_node *get_gpio(char *name,
{
struct device_node *np, *gpio;
u32 *reg;
char *audio_gpio;
const char *audio_gpio;
*gpioptr = -1;

11
sound/oss/dmasound/dmasound_awacs.c
View File

@ -347,8 +347,8 @@ int
setup_audio_gpio(const char *name, const char* compatible, int *gpio_addr, int* gpio_pol)
{
struct device_node *np;
u32* pp;
const u32* pp;
np = find_devices("gpio");
if (!np)
return -ENODEV;
@ -356,7 +356,8 @@ setup_audio_gpio(const char *name, const char* compatible, int *gpio_addr, int*
np = np->child;
while(np != 0) {
if (name) {
char *property = get_property(np,"audio-gpio",NULL);
const char *property =
get_property(np,"audio-gpio",NULL);
if (property != 0 && strcmp(property,name) == 0)
break;
} else if (compatible && device_is_compatible(np, compatible))
@ -365,11 +366,11 @@ setup_audio_gpio(const char *name, const char* compatible, int *gpio_addr, int*
}
if (!np)
return -ENODEV;
pp = (u32 *)get_property(np, "AAPL,address", NULL);
pp = get_property(np, "AAPL,address", NULL);
if (!pp)
return -ENODEV;
*gpio_addr = (*pp) & 0x0000ffff;
pp = (u32 *)get_property(np, "audio-gpio-active-state", NULL);
pp = get_property(np, "audio-gpio-active-state", NULL);
if (pp)
*gpio_pol = *pp;
else

15
sound/ppc/tumbler.c
View File

@ -1035,7 +1035,7 @@ static struct device_node *find_audio_device(const char *name)
return NULL;
for (np = np->child; np; np = np->sibling) {
char *property = get_property(np, "audio-gpio", NULL);
const char *property = get_property(np, "audio-gpio", NULL);
if (property && strcmp(property, name) == 0)
return np;
}
@ -1062,7 +1062,8 @@ static long tumbler_find_device(const char *device, const char *platform,
struct pmac_gpio *gp, int is_compatible)
{
struct device_node *node;
u32 *base, addr;
const u32 *base;
u32 addr;
if (is_compatible)
node = find_compatible_audio_device(device);
@ -1074,9 +1075,9 @@ static long tumbler_find_device(const char *device, const char *platform,
return -ENODEV;
}
base = (u32 *)get_property(node, "AAPL,address", NULL);
base = get_property(node, "AAPL,address", NULL);
if (! base) {
base = (u32 *)get_property(node, "reg", NULL);
base = get_property(node, "reg", NULL);
if (!base) {
DBG("(E) cannot find address for device %s !\n", device);
snd_printd("cannot find address for device %s\n", device);
@ -1090,13 +1091,13 @@ static long tumbler_find_device(const char *device, const char *platform,
gp->addr = addr & 0x0000ffff;
/* Try to find the active state, default to 0 ! */
base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
base = get_property(node, "audio-gpio-active-state", NULL);
if (base) {
gp->active_state = *base;
gp->active_val = (*base) ? 0x5 : 0x4;
gp->inactive_val = (*base) ? 0x4 : 0x5;
} else {
u32 *prop = NULL;
const u32 *prop = NULL;
gp->active_state = 0;
gp->active_val = 0x4;
gp->inactive_val = 0x5;
@ -1105,7 +1106,7 @@ static long tumbler_find_device(const char *device, const char *platform,
* as we don't yet have an interpreter for these things
*/
if (platform)
prop = (u32 *)get_property(node, platform, NULL);
prop = get_property(node, platform, NULL);
if (prop) {
if (prop[3] == 0x9 && prop[4] == 0x9) {
gp->active_val = 0xd;