[ALSA] ASoC: Convert N810 machine driver to use gpiolib

Use gpiolib since it is now available for OMAPs. Change also references to
HW version RX44 to product name N810.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/soc/omap/n810.c

@@ -30,15 +30,15 @@
 
 #include <asm/mach-types.h>
 #include <asm/arch/hardware.h>
-#include <asm/arch/gpio.h>
+#include <linux/gpio.h>
 #include <asm/arch/mcbsp.h>
 
 #include "omap-mcbsp.h"
 #include "omap-pcm.h"
 #include "../codecs/tlv320aic3x.h"
 
-#define RX44_HEADSET_AMP_GPIO	10
-#define RX44_SPEAKER_AMP_GPIO	101
+#define N810_HEADSET_AMP_GPIO	10
+#define N810_SPEAKER_AMP_GPIO	101
 
 static struct clk *sys_clkout2;
 static struct clk *sys_clkout2_src;
@@ -154,9 +154,9 @@ static int n810_spk_event(struct snd_soc_dapm_widget *w,
 			  struct snd_kcontrol *k, int event)
 {
 	if (SND_SOC_DAPM_EVENT_ON(event))
-		omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 1);
+		gpio_set_value(N810_SPEAKER_AMP_GPIO, 1);
 	else
-		omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 0);
+		gpio_set_value(N810_SPEAKER_AMP_GPIO, 0);
 
 	return 0;
 }
@@ -165,9 +165,9 @@ static int n810_jack_event(struct snd_soc_dapm_widget *w,
 			   struct snd_kcontrol *k, int event)
 {
 	if (SND_SOC_DAPM_EVENT_ON(event))
-		omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 1);
+		gpio_set_value(N810_HEADSET_AMP_GPIO, 1);
 	else
-		omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 0);
+		gpio_set_value(N810_HEADSET_AMP_GPIO, 0);
 
 	return 0;
 }
@@ -303,12 +303,12 @@ static int __init n810_soc_init(void)
 	clk_set_parent(sys_clkout2_src, func96m_clk);
 	clk_set_rate(sys_clkout2, 12000000);
 
-	if (omap_request_gpio(RX44_HEADSET_AMP_GPIO) < 0)
+	if (gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0)
 		BUG();
-	if (omap_request_gpio(RX44_SPEAKER_AMP_GPIO) < 0)
+	if (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0)
 		BUG();
-	omap_set_gpio_direction(RX44_HEADSET_AMP_GPIO, 0);
-	omap_set_gpio_direction(RX44_SPEAKER_AMP_GPIO, 0);
+	gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
+	gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
 
 	return 0;
 err2:
@@ -323,6 +323,9 @@ static int __init n810_soc_init(void)
 
 static void __exit n810_soc_exit(void)
 {
+	gpio_free(N810_SPEAKER_AMP_GPIO);
+	gpio_free(N810_HEADSET_AMP_GPIO);
+
 	platform_device_unregister(n810_snd_device);
 }