ASoC: samsung: h1940: turn into platform driver

Avoid machine specific headers by using a gpio lookup table
combined with a platform_driver for this board.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200806182059.2431-24-krzk@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 23 insertions, 48 deletions

diff --git a/sound/soc/samsung/h1940_uda1380.c b/sound/soc/samsung/h1940_uda1380.c
index b8f0057a0510..8aa78ff640f5 100644
--- a/sound/soc/samsung/h1940_uda1380.c
+++ b/sound/soc/samsung/h1940_uda1380.c
@@ -15,9 +15,6 @@
 #include <sound/jack.h>
 
 #include "regs-iis.h"
-#include <asm/mach-types.h>
-
-#include <mach/gpio-samsung.h>
 #include "s3c24xx-i2s.h"
 
 static const unsigned int rates[] = {
@@ -31,6 +28,8 @@ static const struct snd_pcm_hw_constraint_list hw_rates = {
 	.list = rates,
 };
 
+static struct gpio_desc *gpiod_speaker_power;
+
 static struct snd_soc_jack hp_jack;
 
 static struct snd_soc_jack_pin hp_jack_pins[] = {
@@ -47,7 +46,6 @@ static struct snd_soc_jack_pin hp_jack_pins[] = {
 
 static struct snd_soc_jack_gpio hp_jack_gpios[] = {
 	{
-		.gpio			= S3C2410_GPG(4),
 		.name			= "hp-gpio",
 		.report			= SND_JACK_HEADPHONE,
 		.invert			= 1,
@@ -123,9 +121,9 @@ static int h1940_spk_power(struct snd_soc_dapm_widget *w,
 				struct snd_kcontrol *kcontrol, int event)
 {
 	if (SND_SOC_DAPM_EVENT_ON(event))
-		gpio_set_value(S3C_GPIO_END + 9, 1);
+		gpiod_set_value(gpiod_speaker_power, 1);
 	else
-		gpio_set_value(S3C_GPIO_END + 9, 0);
+		gpiod_set_value(gpiod_speaker_power, 0);
 
 	return 0;
 }
@@ -151,8 +149,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	{"VINM", NULL, "Mic Jack"},
 };
 
-static struct platform_device *s3c24xx_snd_device;
-
 static int h1940_uda1380_init(struct snd_soc_pcm_runtime *rtd)
 {
 	snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE,
@@ -194,55 +190,34 @@ static struct snd_soc_card h1940_asoc = {
 	.num_dapm_routes = ARRAY_SIZE(audio_map),
 };
 
-static int __init h1940_init(void)
+static int h1940_probe(struct platform_device *pdev)
 {
-	int ret;
+	struct device *dev = &pdev->dev;
 
-	if (!machine_is_h1940())
-		return -ENODEV;
+	h1940_asoc.dev = dev;
+	hp_jack_gpios[0].gpiod_dev = dev;
+	gpiod_speaker_power = devm_gpiod_get(&pdev->dev, "speaker-power",
+					     GPIOD_OUT_LOW);
 
-	/* configure some gpios */
-	ret = gpio_request(S3C_GPIO_END + 9, "speaker-power");
-	if (ret)
-		goto err_out;
-
-	ret = gpio_direction_output(S3C_GPIO_END + 9, 0);
-	if (ret)
-		goto err_gpio;
-
-	s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!s3c24xx_snd_device) {
-		ret = -ENOMEM;
-		goto err_gpio;
+	if (IS_ERR(gpiod_speaker_power)) {
+		dev_err(dev, "Could not get gpio\n");
+		return PTR_ERR(gpiod_speaker_power);
 	}
 
-	platform_set_drvdata(s3c24xx_snd_device, &h1940_asoc);
-	ret = platform_device_add(s3c24xx_snd_device);
-
-	if (ret)
-		goto err_plat;
-
-	return 0;
-
-err_plat:
-	platform_device_put(s3c24xx_snd_device);
-err_gpio:
-	gpio_free(S3C_GPIO_END + 9);
-
-err_out:
-	return ret;
-}
-
-static void __exit h1940_exit(void)
-{
-	platform_device_unregister(s3c24xx_snd_device);
-	gpio_free(S3C_GPIO_END + 9);
+	return devm_snd_soc_register_card(dev, &h1940_asoc);
 }
 
-module_init(h1940_init);
-module_exit(h1940_exit);
+static struct platform_driver h1940_audio_driver = {
+	.driver = {
+		.name = "h1940-audio",
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = h1940_probe,
+};
+module_platform_driver(h1940_audio_driver);
 
 /* Module information */
 MODULE_AUTHOR("Arnaud Patard, Vasily Khoruzhick");
 MODULE_DESCRIPTION("ALSA SoC H1940");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:h1940-audio");