Commit df0cc2d1 authored by Arnd Bergmann's avatar Arnd Bergmann

ASoC: samsung/smartq: use dynamic registration

As a prerequisite for moving s3c64xx into multiplatform configurations,
we need to change the smartq audio driver to stop using hardcoded
gpio numbers from the header file, and instead pass the gpio data
through platform_data.

In order to do that, we also move the code to use module_platform_driver
and register the platform device using platform_device_register_simple
and register the gpios through the gpiod API.
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarMark Brown <broonie@kernel.org>
Reviewed-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
parent 94eb81ad
...@@ -12,6 +12,7 @@ ...@@ -12,6 +12,7 @@
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/fb.h> #include <linux/fb.h>
#include <linux/gpio.h> #include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/pwm.h> #include <linux/pwm.h>
...@@ -383,6 +384,15 @@ void __init smartq_map_io(void) ...@@ -383,6 +384,15 @@ void __init smartq_map_io(void)
smartq_lcd_mode_set(); smartq_lcd_mode_set();
} }
static struct gpiod_lookup_table smartq_audio_gpios = {
.dev_id = "smartq-audio",
.table = {
GPIO_LOOKUP("GPL", 12, "headphone detect", 0),
GPIO_LOOKUP("GPK", 12, "amplifiers shutdown", 0),
{ },
},
};
void __init smartq_machine_init(void) void __init smartq_machine_init(void)
{ {
s3c_i2c0_set_platdata(NULL); s3c_i2c0_set_platdata(NULL);
...@@ -402,4 +412,7 @@ void __init smartq_machine_init(void) ...@@ -402,4 +412,7 @@ void __init smartq_machine_init(void)
pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup)); pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices)); platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
gpiod_add_lookup_table(&smartq_audio_gpios);
platform_device_register_simple("smartq-audio", -1, NULL, 0);
} }
...@@ -13,15 +13,12 @@ ...@@ -13,15 +13,12 @@
* *
*/ */
#include <linux/gpio.h> #include <linux/gpio/consumer.h>
#include <linux/module.h> #include <linux/module.h>
#include <sound/soc.h> #include <sound/soc.h>
#include <sound/jack.h> #include <sound/jack.h>
#include <mach/gpio-samsung.h>
#include <asm/mach-types.h>
#include "i2s.h" #include "i2s.h"
#include "../codecs/wm8750.h" #include "../codecs/wm8750.h"
...@@ -96,7 +93,7 @@ static struct snd_soc_jack_pin smartq_jack_pins[] = { ...@@ -96,7 +93,7 @@ static struct snd_soc_jack_pin smartq_jack_pins[] = {
static struct snd_soc_jack_gpio smartq_jack_gpios[] = { static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
{ {
.gpio = S3C64XX_GPL(12), .gpio = -1,
.name = "headphone detect", .name = "headphone detect",
.report = SND_JACK_HEADPHONE, .report = SND_JACK_HEADPHONE,
.debounce_time = 200, .debounce_time = 200,
...@@ -113,7 +110,9 @@ static int smartq_speaker_event(struct snd_soc_dapm_widget *w, ...@@ -113,7 +110,9 @@ static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, struct snd_kcontrol *k,
int event) int event)
{ {
gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event)); struct gpio_desc *gpio = snd_soc_card_get_drvdata(&snd_soc_smartq);
gpiod_set_value(gpio, SND_SOC_DAPM_EVENT_OFF(event));
return 0; return 0;
} }
...@@ -199,62 +198,39 @@ static struct snd_soc_card snd_soc_smartq = { ...@@ -199,62 +198,39 @@ static struct snd_soc_card snd_soc_smartq = {
.num_controls = ARRAY_SIZE(wm8987_smartq_controls), .num_controls = ARRAY_SIZE(wm8987_smartq_controls),
}; };
static struct platform_device *smartq_snd_device; static int smartq_probe(struct platform_device *pdev)
static int __init smartq_init(void)
{ {
struct gpio_desc *gpio;
int ret; int ret;
if (!machine_is_smartq7() && !machine_is_smartq5()) { platform_set_drvdata(pdev, &snd_soc_smartq);
pr_info("Only SmartQ is supported by this ASoC driver\n");
return -ENODEV;
}
smartq_snd_device = platform_device_alloc("soc-audio", -1);
if (!smartq_snd_device)
return -ENOMEM;
platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
ret = platform_device_add(smartq_snd_device);
if (ret) {
platform_device_put(smartq_snd_device);
return ret;
}
/* Initialise GPIOs used by amplifiers */ /* Initialise GPIOs used by amplifiers */
ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown"); gpio = devm_gpiod_get(&pdev->dev, "amplifiers shutdown",
if (ret) { GPIOD_OUT_HIGH);
dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n"); if (IS_ERR(gpio)) {
goto err_unregister_device; dev_err(&pdev->dev, "Failed to register GPK12\n");
ret = PTR_ERR(gpio);
goto out;
} }
snd_soc_card_set_drvdata(&snd_soc_smartq, gpio);
/* Disable amplifiers */ ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_smartq);
ret = gpio_direction_output(S3C64XX_GPK(12), 1); if (ret)
if (ret) { dev_err(&pdev->dev, "Failed to register card\n");
dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
goto err_free_gpio_amp_shut;
}
return 0;
err_free_gpio_amp_shut:
gpio_free(S3C64XX_GPK(12));
err_unregister_device:
platform_device_unregister(smartq_snd_device);
out:
return ret; return ret;
} }
static void __exit smartq_exit(void) static struct platform_driver smartq_driver = {
{ .driver = {
gpio_free(S3C64XX_GPK(12)); .name = "smartq-audio",
},
platform_device_unregister(smartq_snd_device); .probe = smartq_probe,
} };
module_init(smartq_init); module_platform_driver(smartq_driver);
module_exit(smartq_exit);
/* Module information */ /* Module information */
MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>"); MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
......
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