ARM: pxa: hx4700: use gpio descriptors for audio

The audio driver should not use a hardwired gpio number
from the header. Change it to use a lookup table.

Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Paul Parsons <lost.distance@yahoo.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-pxa/hx4700-pcmcia.c

@@ -10,7 +10,7 @@
 #include <linux/irq.h>
 
 #include <asm/mach-types.h>
-#include <mach/hx4700.h>
+#include "hx4700.h"
 
 #include <pcmcia/soc_common.h>
 

arch/arm/mach-pxa/hx4700.c

@@ -41,7 +41,7 @@
 
 #include "pxa27x.h"
 #include "addr-map.h"
-#include <mach/hx4700.h>
+#include "hx4700.h"
 #include <linux/platform_data/irda-pxaficp.h>
 
 #include <sound/ak4641.h>
@@ -834,6 +834,19 @@ static struct i2c_board_info i2c_board_info[] __initdata = {
 	},
 };
 
+static struct gpiod_lookup_table hx4700_audio_gpio_table = {
+	.dev_id = "hx4700-audio",
+	.table = {
+		GPIO_LOOKUP("gpio-pxa", GPIO75_HX4700_EARPHONE_nDET,
+			    "earphone-det", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("gpio-pxa", GPIO92_HX4700_HP_DRIVER,
+			    "hp-driver", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-pxa", GPIO107_HX4700_SPK_nSD,
+			    "spk-sd", GPIO_ACTIVE_LOW),
+		{ },
+	},
+};
+
 static struct platform_device audio = {
 	.name	= "hx4700-audio",
 	.id	= -1,
@@ -895,6 +908,7 @@ static void __init hx4700_init(void)
 
 	gpiod_add_lookup_table(&bq24022_gpiod_table);
 	gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
+	gpiod_add_lookup_table(&hx4700_audio_gpio_table);
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 	pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
 

arch/arm/mach-pxa/include/mach/hx4700.h → arch/arm/mach-pxa/hx4700.h

@@ -10,7 +10,7 @@
 
 #include <linux/gpio.h>
 #include <linux/mfd/asic3.h>
-#include "irqs.h" /* PXA_NR_BUILTIN_GPIO */
+#include <mach/irqs.h> /* PXA_NR_BUILTIN_GPIO */
 
 #define HX4700_ASIC3_GPIO_BASE	PXA_NR_BUILTIN_GPIO
 #define HX4700_EGPIO_BASE	(HX4700_ASIC3_GPIO_BASE + ASIC3_NUM_GPIOS)

sound/soc/pxa/hx4700.c

@@ -10,7 +10,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 
 #include <sound/core.h>
 #include <sound/jack.h>
@@ -18,10 +18,10 @@
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 
-#include <mach/hx4700.h>
 #include <asm/mach-types.h>
 #include "pxa2xx-i2s.h"
 
+static struct gpio_desc *gpiod_hp_driver, *gpiod_spk_sd;
 static struct snd_soc_jack hs_jack;
 
 /* Headphones jack detection DAPM pin */
@@ -29,20 +29,18 @@ static struct snd_soc_jack_pin hs_jack_pin[] = {
 	{
 		.pin	= "Headphone Jack",
 		.mask	= SND_JACK_HEADPHONE,
+		.invert	= 1,
 	},
 	{
 		.pin	= "Speaker",
 		/* disable speaker when hp jack is inserted */
 		.mask   = SND_JACK_HEADPHONE,
-		.invert	= 1,
 	},
 };
 
 /* Headphones jack detection GPIO */
 static struct snd_soc_jack_gpio hs_jack_gpio = {
-	.gpio		= GPIO75_HX4700_EARPHONE_nDET,
-	.invert		= true,
-	.name		= "hp-gpio",
+	.name		= "earphone-det",
 	.report		= SND_JACK_HEADPHONE,
 	.debounce_time	= 200,
 };
@@ -81,14 +79,14 @@ static const struct snd_soc_ops hx4700_ops = {
 static int hx4700_spk_power(struct snd_soc_dapm_widget *w,
 			    struct snd_kcontrol *k, int event)
 {
-	gpio_set_value(GPIO107_HX4700_SPK_nSD, !!SND_SOC_DAPM_EVENT_ON(event));
+	gpiod_set_value(gpiod_spk_sd, !SND_SOC_DAPM_EVENT_ON(event));
 	return 0;
 }
 
 static int hx4700_hp_power(struct snd_soc_dapm_widget *w,
 			   struct snd_kcontrol *k, int event)
 {
-	gpio_set_value(GPIO92_HX4700_HP_DRIVER, !!SND_SOC_DAPM_EVENT_ON(event));
+	gpiod_set_value(gpiod_hp_driver, !!SND_SOC_DAPM_EVENT_ON(event));
 	return 0;
 }
 
@@ -162,11 +160,6 @@ static struct snd_soc_card snd_soc_card_hx4700 = {
 	.fully_routed		= true,
 };
 
-static struct gpio hx4700_audio_gpios[] = {
-	{ GPIO107_HX4700_SPK_nSD, GPIOF_OUT_INIT_HIGH, "SPK_POWER" },
-	{ GPIO92_HX4700_HP_DRIVER, GPIOF_OUT_INIT_LOW, "EP_POWER" },
-};
-
 static int hx4700_audio_probe(struct platform_device *pdev)
 {
 	int ret;
@@ -174,26 +167,26 @@ static int hx4700_audio_probe(struct platform_device *pdev)
 	if (!machine_is_h4700())
 		return -ENODEV;
 
-	ret = gpio_request_array(hx4700_audio_gpios,
-				ARRAY_SIZE(hx4700_audio_gpios));
+	gpiod_hp_driver = devm_gpiod_get(&pdev->dev, "hp-driver", GPIOD_ASIS);
+	ret = PTR_ERR_OR_ZERO(gpiod_hp_driver);
+	if (ret)
+		return ret;
+	gpiod_spk_sd = devm_gpiod_get(&pdev->dev, "spk-sd", GPIOD_ASIS);
+	ret = PTR_ERR_OR_ZERO(gpiod_spk_sd);
 	if (ret)
 		return ret;
 
+	hs_jack_gpio.gpiod_dev = &pdev->dev;
 	snd_soc_card_hx4700.dev = &pdev->dev;
 	ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_hx4700);
-	if (ret)
-		gpio_free_array(hx4700_audio_gpios,
-				ARRAY_SIZE(hx4700_audio_gpios));
 
 	return ret;
 }
 
 static int hx4700_audio_remove(struct platform_device *pdev)
 {
-	gpio_set_value(GPIO92_HX4700_HP_DRIVER, 0);
-	gpio_set_value(GPIO107_HX4700_SPK_nSD, 0);
-
-	gpio_free_array(hx4700_audio_gpios, ARRAY_SIZE(hx4700_audio_gpios));
+	gpiod_set_value(gpiod_hp_driver, 0);
+	gpiod_set_value(gpiod_spk_sd, 0);
 	return 0;
 }