ARM: pxa: spitz: 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.

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

arch/arm/mach-pxa/include/mach/spitz.h arch/arm/mach-pxa/spitz.h

···
 #define __ASM_ARCH_SPITZ_H  1
 #endif
 
-#include "irqs.h" /* PXA_NR_BUILTIN_GPIO, PXA_GPIO_TO_IRQ */
+#include <mach/irqs.h> /* PXA_NR_BUILTIN_GPIO, PXA_GPIO_TO_IRQ */
 #include <linux/fb.h>
 
 /* Spitz/Akita GPIOs */

arch/arm/mach-pxa/spitz.c

···
 #include <linux/platform_data/mmc-pxamci.h>
 #include <linux/platform_data/usb-ohci-pxa27x.h>
 #include <linux/platform_data/video-pxafb.h>
-#include <mach/spitz.h>
+#include "spitz.h"
 #include "sharpsl_pm.h"
 #include <mach/smemc.h>
 
···
 static inline void spitz_i2c_init(void) {}
 #endif
 
+static struct gpiod_lookup_table spitz_audio_gpio_table = {
+	.dev_id = "spitz-audio",
+	.table = {
+		GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_L - SPITZ_SCP_GPIO_BASE,
+			    "mute-l", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_R - SPITZ_SCP_GPIO_BASE,
+			    "mute-r", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("sharp-scoop.1", SPITZ_GPIO_MIC_BIAS - SPITZ_SCP2_GPIO_BASE,
+			    "mic", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+static struct gpiod_lookup_table akita_audio_gpio_table = {
+	.dev_id = "spitz-audio",
+	.table = {
+		GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_L - SPITZ_SCP_GPIO_BASE,
+			    "mute-l", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_R - SPITZ_SCP_GPIO_BASE,
+			    "mute-r", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("i2c-max7310", AKITA_GPIO_MIC_BIAS - AKITA_IOEXP_GPIO_BASE,
+			    "mic", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
 /******************************************************************************
  * Audio devices
  ******************************************************************************/
 static inline void spitz_audio_init(void)
 {
+	if (machine_is_akita())
+		gpiod_add_lookup_table(&akita_audio_gpio_table);
+	else
+		gpiod_add_lookup_table(&spitz_audio_gpio_table);
+
 	platform_device_register_simple("spitz-audio", -1, NULL, 0);
 }
 

arch/arm/mach-pxa/spitz_pm.c

···
 #include <asm/irq.h>
 #include <asm/mach-types.h>
 
-#include <mach/spitz.h>
+#include "spitz.h"
 #include "pxa27x.h"
 #include "sharpsl_pm.h"
 

sound/soc/pxa/spitz.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 <sound/soc.h>
 
 #include <asm/mach-types.h>
-#include <mach/spitz.h>
 #include "../codecs/wm8750.h"
 #include "pxa2xx-i2s.h"
 
···
 
 static int spitz_jack_func;
 static int spitz_spk_func;
-static int spitz_mic_gpio;
+static struct gpio_desc *gpiod_mic, *gpiod_mute_l, *gpiod_mute_r;
 
 static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
 {
···
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
-		gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
-		gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
+		gpiod_set_value(gpiod_mute_l, 1);
+		gpiod_set_value(gpiod_mute_r, 1);
 		break;
 	case SPITZ_MIC:
 		/* enable mic jack and bias, mute hp */
···
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
-		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
-		gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
+		gpiod_set_value(gpiod_mute_l, 0);
+		gpiod_set_value(gpiod_mute_r, 0);
 		break;
 	case SPITZ_LINE:
 		/* enable line jack, disable mic bias and mute hp */
···
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
-		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
-		gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
+		gpiod_set_value(gpiod_mute_l, 0);
+		gpiod_set_value(gpiod_mute_r, 0);
 		break;
 	case SPITZ_HEADSET:
 		/* enable and unmute headset jack enable mic bias, mute L hp */
···
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
-		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
-		gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
+		gpiod_set_value(gpiod_mute_l, 0);
+		gpiod_set_value(gpiod_mute_r, 1);
 		break;
 	case SPITZ_HP_OFF:
 
···
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
-		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
-		gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
+		gpiod_set_value(gpiod_mute_l, 0);
+		gpiod_set_value(gpiod_mute_r, 0);
 		break;
 	}
 
···
 static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *k, int event)
 {
-	gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event));
+	gpiod_set_value_cansleep(gpiod_mic, SND_SOC_DAPM_EVENT_ON(event));
 	return 0;
 }
 
···
 	struct snd_soc_card *card = &snd_soc_spitz;
 	int ret;
 
-	if (machine_is_akita())
-		spitz_mic_gpio = AKITA_GPIO_MIC_BIAS;
-	else
-		spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS;
-
-	ret = gpio_request(spitz_mic_gpio, "MIC GPIO");
-	if (ret)
-		goto err1;
-
-	ret = gpio_direction_output(spitz_mic_gpio, 0);
-	if (ret)
-		goto err2;
+	gpiod_mic = devm_gpiod_get(&pdev->dev, "mic", GPIOD_OUT_LOW);
+	if (IS_ERR(gpiod_mic))
+		return PTR_ERR(gpiod_mic);
+	gpiod_mute_l = devm_gpiod_get(&pdev->dev, "mute-l", GPIOD_OUT_LOW);
+	if (IS_ERR(gpiod_mute_l))
+		return PTR_ERR(gpiod_mute_l);
+	gpiod_mute_r = devm_gpiod_get(&pdev->dev, "mute-r", GPIOD_OUT_LOW);
+	if (IS_ERR(gpiod_mute_r))
+		return PTR_ERR(gpiod_mute_r);
 
 	card->dev = &pdev->dev;
 
 	ret = devm_snd_soc_register_card(&pdev->dev, card);
-	if (ret) {
+	if (ret)
 		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 			ret);
-		goto err2;
-	}
 
-	return 0;
-
-err2:
-	gpio_free(spitz_mic_gpio);
-err1:
 	return ret;
 }
 
 static int spitz_remove(struct platform_device *pdev)
 {
-	gpio_free(spitz_mic_gpio);
 	return 0;
 }