ARM: pxa: z2: use gpio lookup for audio device

The audio device is allocated by the audio driver, and it uses a gpio
number from the mach/z2.h header file.

Change it to use a gpio lookup table for the device allocated by the
driver to keep the header file local to the machine.
Acked-by: NMark Brown <broonie@kernel.org>
Cc: alsa-devel@alsa-project.org
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

arch/arm/mach-pxa/z2.c

@@ -651,6 +651,15 @@ static void __init z2_spi_init(void)
 static inline void z2_spi_init(void) {}
 #endif
 
+static struct gpiod_lookup_table z2_audio_gpio_table = {
+	.dev_id = "soc-audio",
+	.table = {
+		GPIO_LOOKUP("gpio-pxa", GPIO37_ZIPITZ2_HEADSET_DETECT,
+			    "hsdet-gpio", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 /******************************************************************************
  * Core power regulator
  ******************************************************************************/
@@ -755,6 +764,8 @@ static void __init z2_init(void)
 	z2_keys_init();
 	z2_pmic_init();
 
+	gpiod_add_lookup_table(&z2_audio_gpio_table);
+
 	pm_power_off = z2_power_off;
 }
 

sound/soc/pxa/z2.c

@@ -13,7 +13,7 @@
 #include <linux/timer.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -22,7 +22,6 @@
 
 #include <asm/mach-types.h>
 #include <linux/platform_data/asoc-pxa.h>
-#include <mach/z2.h>
 
 #include "../codecs/wm8750.h"
 #include "pxa2xx-i2s.h"
@@ -89,7 +88,6 @@ static struct snd_soc_jack_pin hs_jack_pins[] = {
 /* Headset jack detection gpios */
 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
 	{
-		.gpio		= GPIO37_ZIPITZ2_HEADSET_DETECT,
 		.name		= "hsdet-gpio",
 		.report		= SND_JACK_HEADSET,
 		.debounce_time	= 200,
@@ -195,6 +193,7 @@ static int __init z2_init(void)
 	if (!z2_snd_device)
 		return -ENOMEM;
 
+	hs_jack_gpios[0].gpiod_dev = &z2_snd_device->dev;
 	platform_set_drvdata(z2_snd_device, &snd_soc_z2);
 	ret = platform_device_add(z2_snd_device);