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ALSA: powermac - Reverse HP detection on G4 DA

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Reverse headphone detection bit on PowerMac G4 Digital Audio (Tumbler).

Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Risto Suominen 2010-04-04 07:59:30 +03:00 committed by Takashi Iwai
parent ec2755a93d
commit 819ef70b13
1 changed files with 4 additions and 1 deletions
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5
sound/ppc/tumbler.c
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@ -30,6 +30,7 @@
#include <linux/kmod.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/string.h>
#include <sound/core.h>
#include <asm/io.h>
#include <asm/irq.h>
@ -46,6 +47,8 @@
#define DBG(fmt...)
#endif
#define IS_G4DA (machine_is_compatible("PowerMac3,4"))
/* i2c address for tumbler */
#define TAS_I2C_ADDR 0x34
@ -1134,7 +1137,7 @@ static long tumbler_find_device(const char *device, const char *platform,
gp->inactive_val = (*base) ? 0x4 : 0x5;
} else {
const u32 *prop = NULL;
gp->active_state = 0;
gp->active_state = IS_G4DA && !strcmp(device, "keywest-gpio15");
gp->active_val = 0x4;
gp->inactive_val = 0x5;
/* Here are some crude hacks to extract the GPIO polarity and