Commit 819ef70b authored by Risto Suominen's avatar Risto Suominen Committed by Takashi Iwai
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ALSA: powermac - Reverse HP detection on G4 DA 



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

Signed-off-by: default avatarRisto Suominen <Risto.Suominen@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ec2755a9

sound/ppc/tumbler.c

+4 −1
Original line number Diff line number Diff line
@@ -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