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: Mark Brown <[e-mail]>
Cc: [e-mail]
Reviewed-by: Linus Walleij <[e-mail]>
Acked-by: Robert Jarzmik <[e-mail]>
Signed-off-by: Arnd Bergmann <[e-mail]>

arch/arm/mach-pxa/z2.c

···
 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
  ******************************************************************************/
···
 	z2_leds_init();
 	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

···
 #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>
···
 
 #include <asm/mach-types.h>
 #include <linux/platform_data/asoc-pxa.h>
-#include <mach/z2.h>
 
 #include "../codecs/wm8750.h"
 #include "pxa2xx-i2s.h"
···
 /* 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,
···
 	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);