ASoC: omap: rx51: get GPIO numbers via gpiod API

Update the driver to get GPIO numbers from the
devm gpiod API instead of requesting hardcoded
GPIO numbers.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 79 insertions, 35 deletions

diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c
index e140b1b2bdf1..30cfac023138 100644
--- a/sound/soc/omap/rx51.c
+++ b/sound/soc/omap/rx51.c
@@ -26,6 +26,7 @@
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <sound/core.h>
 #include <sound/jack.h>
@@ -38,15 +39,6 @@
 
 #include "omap-mcbsp.h"
 
-#define RX51_TVOUT_SEL_GPIO             40
-#define RX51_JACK_DETECT_GPIO           177
-#define RX51_ECI_SW_GPIO                182
-/*
- * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
- * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
- */
-#define RX51_SPEAKER_AMP_TWL_GPIO       (192 + 7)
-
 enum {
         RX51_JACK_DISABLED,
         RX51_JACK_TVOUT,                /* tv-out with stereo output */
@@ -54,12 +46,21 @@ enum {
         RX51_JACK_HS,                   /* headset: stereo output with mic */
 };
 
+struct rx51_audio_pdata {
+        struct gpio_desc *tvout_selection_gpio;
+        struct gpio_desc *jack_detection_gpio;
+        struct gpio_desc *eci_sw_gpio;
+        struct gpio_desc *speaker_amp_gpio;
+};
+
 static int rx51_spk_func;
 static int rx51_dmic_func;
 static int rx51_jack_func;
 
 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
 {
+        struct snd_soc_card *card = dapm->card;
+        struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
         int hp = 0, hs = 0, tvout = 0;
 
         switch (rx51_jack_func) {
@@ -93,7 +94,7 @@ static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
         else
                 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");
 
-        gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
+        gpiod_set_value(pdata->tvout_selection_gpio, tvout);
 
         snd_soc_dapm_sync_unlocked(dapm);
 
@@ -154,10 +155,12 @@ static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
                           struct snd_kcontrol *k, int event)
 {
-        if (SND_SOC_DAPM_EVENT_ON(event))
-                gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
-        else
-                gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
+        struct snd_soc_dapm_context *dapm = w->dapm;
+        struct snd_soc_card *card = dapm->card;
+        struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
+
+        gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio,
+                                     !!SND_SOC_DAPM_EVENT_ON(event));
 
         return 0;
 }
@@ -223,7 +226,6 @@ static struct snd_soc_jack rx51_av_jack;
 
 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
         {
-                .gpio = RX51_JACK_DETECT_GPIO,
                 .name = "avdet-gpio",
                 .report = SND_JACK_HEADSET,
                 .invert = 1,
@@ -284,6 +286,9 @@ static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_soc_codec *codec = rtd->codec;
+        struct snd_soc_card *card = codec->card;
+        struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
+
         struct snd_soc_dapm_context *dapm = &codec->dapm;
         int err;
 
@@ -307,6 +312,11 @@ static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
                                &rx51_av_jack);
         if (err)
                 return err;
+
+        /* prepare gpio for snd_soc_jack_add_gpios */
+        rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio);
+        devm_gpiod_put(card->dev, pdata->jack_detection_gpio);
+
         err = snd_soc_jack_add_gpios(&rx51_av_jack,
                                      ARRAY_SIZE(rx51_av_jack_gpios),
                                      rx51_av_jack_gpios);
@@ -365,37 +375,74 @@ static struct snd_soc_card rx51_sound_card = {
 
 static int rx51_soc_probe(struct platform_device *pdev)
 {
+        struct rx51_audio_pdata *pdata;
         struct snd_soc_card *card = &rx51_sound_card;
         int err;
 
         if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
                 return -ENODEV;
 
-        err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
-                               GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
-        if (err)
-                goto err_gpio_tvout_sel;
-        err = gpio_request_one(RX51_ECI_SW_GPIO,
-                               GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
-        if (err)
-                goto err_gpio_eci_sw;
-
         card->dev = &pdev->dev;
 
+        pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+        if (pdata == NULL) {
+                dev_err(card->dev, "failed to create private data\n");
+                return -ENOMEM;
+        }
+        snd_soc_card_set_drvdata(card, pdata);
+
+        pdata->tvout_selection_gpio = devm_gpiod_get(card->dev,
+                                                     "tvout-selection");
+        if (IS_ERR(pdata->tvout_selection_gpio)) {
+                dev_err(card->dev, "could not get tvout selection gpio\n");
+                return PTR_ERR(pdata->tvout_selection_gpio);
+        }
+
+        err = gpiod_direction_output(pdata->tvout_selection_gpio, 0);
+        if (err) {
+                dev_err(card->dev, "could not setup tvout selection gpio\n");
+                return err;
+        }
+
+        pdata->jack_detection_gpio = devm_gpiod_get(card->dev,
+                                                    "jack-detection");
+        if (IS_ERR(pdata->jack_detection_gpio)) {
+                dev_err(card->dev, "could not get jack detection gpio\n");
+                return PTR_ERR(pdata->jack_detection_gpio);
+        }
+
+        pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch");
+        if (IS_ERR(pdata->eci_sw_gpio)) {
+                dev_err(card->dev, "could not get eci switch gpio\n");
+                return PTR_ERR(pdata->eci_sw_gpio);
+        }
+
+        err = gpiod_direction_output(pdata->eci_sw_gpio, 1);
+        if (err) {
+                dev_err(card->dev, "could not setup eci switch gpio\n");
+                return err;
+        }
+
+        pdata->speaker_amp_gpio = devm_gpiod_get(card->dev,
+                                                 "speaker-amplifier");
+        if (IS_ERR(pdata->speaker_amp_gpio)) {
+                dev_err(card->dev, "could not get speaker enable gpio\n");
+                return PTR_ERR(pdata->speaker_amp_gpio);
+        }
+
+        err = gpiod_direction_output(pdata->speaker_amp_gpio, 0);
+        if (err) {
+                dev_err(card->dev, "could not setup speaker enable gpio\n");
+                return err;
+        }
+
         err = devm_snd_soc_register_card(card->dev, card);
         if (err) {
                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err);
-                goto err_snd;
+                return err;
         }
 
         return 0;
-err_snd:
-        gpio_free(RX51_ECI_SW_GPIO);
-err_gpio_eci_sw:
-        gpio_free(RX51_TVOUT_SEL_GPIO);
-err_gpio_tvout_sel:
-
-        return err;
 }
 
 static int rx51_soc_remove(struct platform_device *pdev)
@@ -403,9 +450,6 @@ static int rx51_soc_remove(struct platform_device *pdev)
         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
                                 rx51_av_jack_gpios);
 
-        gpio_free(RX51_ECI_SW_GPIO);
-        gpio_free(RX51_TVOUT_SEL_GPIO);
-
         return 0;
 }