[PATCH 0/3] Convert to use snd_soc_register_card()

[PATCH 0/3] Convert to use snd_soc_register_card()

[Bo Shen]

Convert to use snd_soc_register_card(), and enable it

Change the id for the gpio i2c to let it work

Bo Shen (3):
  ASoC: sam9g20-wm8731: convert to use snd_soc_register_card()
  ASoC: sam9g20: using platform device for audio part
  i2c: change the id to let the i2c-gpio work

 arch/arm/mach-at91/at91sam9260_devices.c |   11 ++++++-
 arch/arm/mach-at91/board-sam9g20ek.c     |   17 ++++++++++
 sound/soc/atmel/sam9g20_wm8731.c         |   51 +++++++++++++-----------------
 3 files changed, 49 insertions(+), 30 deletions(-)

-- 
1.7.9.5

[PATCH 1/3] ASoC: sam9g20-wm8731: convert to use snd_soc_register_card()

[Bo Shen]

Signed-off-by: Bo Shen <voice.shen@atmel.com>
---
 sound/soc/atmel/sam9g20_wm8731.c |   51 ++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 29 deletions(-)

diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index c883514..e5e27db 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -195,22 +195,15 @@ static struct snd_soc_card snd_soc_at91sam9g20ek = {
 	.set_bias_level = at91sam9g20ek_set_bias_level,
 };
 
-static struct platform_device *at91sam9g20ek_snd_device;
-
-static int __init at91sam9g20ek_init(void)
+static int __devinit at91sam9g20ek_audio_probe(struct platform_device *pdev)
 {
 	struct clk *pllb;
+	struct snd_soc_card *card = &snd_soc_at91sam9g20ek;
 	int ret;
 
 	if (!(machine_is_at91sam9g20ek() || machine_is_at91sam9g20ek_2mmc()))
 		return -ENODEV;
 
-	ret = atmel_ssc_set_audio(0);
-	if (ret != 0) {
-		pr_err("Failed to set SSC 0 for audio: %d\n", ret);
-		return ret;
-	}
-
 	/*
 	 * Codec MCLK is supplied by PCK0 - set it up.
 	 */
@@ -236,26 +229,14 @@ static int __init at91sam9g20ek_init(void)
 
 	clk_set_rate(mclk, MCLK_RATE);
 
-	at91sam9g20ek_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!at91sam9g20ek_snd_device) {
-		printk(KERN_ERR "ASoC: Platform device allocation failed\n");
-		ret = -ENOMEM;
-		goto err_mclk;
-	}
-
-	platform_set_drvdata(at91sam9g20ek_snd_device,
-			&snd_soc_at91sam9g20ek);
-
-	ret = platform_device_add(at91sam9g20ek_snd_device);
+	card->dev = &pdev->dev;
+	ret = snd_soc_register_card(card);
 	if (ret) {
-		printk(KERN_ERR "ASoC: Platform device allocation failed\n");
-		goto err_device_add;
+		printk(KERN_ERR "ASoC: snd_soc_register_card() failed\n");
 	}
 
 	return ret;
 
-err_device_add:
-	platform_device_put(at91sam9g20ek_snd_device);
 err_mclk:
 	clk_put(mclk);
 	mclk = NULL;
@@ -263,18 +244,30 @@ err:
 	return ret;
 }
 
-static void __exit at91sam9g20ek_exit(void)
+static int __devexit at91sam9g20ek_audio_remove(struct platform_device *pdev)
 {
-	platform_device_unregister(at91sam9g20ek_snd_device);
-	at91sam9g20ek_snd_device = NULL;
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
 	clk_put(mclk);
 	mclk = NULL;
+
+	return 0;
 }
 
-module_init(at91sam9g20ek_init);
-module_exit(at91sam9g20ek_exit);
+static struct platform_driver at91sam9g20ek_audio_driver = {
+	.driver = {
+		.name	= "at91sam9g20ek-audio",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= at91sam9g20ek_audio_probe,
+	.remove	= __devexit_p(at91sam9g20ek_audio_remove),
+};
+
+module_platform_driver(at91sam9g20ek_audio_driver);
 
 /* Module information */
 MODULE_AUTHOR("Sedji Gaouaou <sedji.gaouaou@atmel.com>");
 MODULE_DESCRIPTION("ALSA SoC AT91SAM9G20EK_WM8731");
+MODULE_ALIAS("platform:at91sam9g20ek-audio");
 MODULE_LICENSE("GPL");
-- 
1.7.9.5

Re: [PATCH 1/3] ASoC: sam9g20-wm8731: convert to use snd_soc_register_card()

[Mark Brown]

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On Thu, Oct 11, 2012 at 10:38:15AM +0800, Bo Shen wrote:
> Signed-off-by: Bo Shen <voice.shen@atmel.com>

Applied, thanks.

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[PATCH 2/3] ASoC: sam9g20: using platform device for audio part

[Bo Shen]

Signed-off-by: Bo Shen <voice.shen@atmel.com>
---
 arch/arm/mach-at91/at91sam9260_devices.c |    9 +++++++++
 arch/arm/mach-at91/board-sam9g20ek.c     |   17 +++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index a76b868..0f24cfb 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -768,6 +768,14 @@ static inline void configure_ssc_pins(unsigned pins)
 		at91_set_A_periph(AT91_PIN_PB21, 1);
 }
 
+static struct platform_device at91sam9260_ssc_dai_device = {
+	.name	= "atmel-ssc-dai",
+	.id	= 0,
+	.dev	= {
+		.parent	= &(at91sam9260_ssc_device.dev),
+	},
+};
+
 /*
  * SSC controllers are accessed through library code, instead of any
  * kind of all-singing/all-dancing driver.  For example one could be
@@ -792,6 +800,7 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins)
 	}
 
 	platform_device_register(pdev);
+	platform_device_register(&at91sam9260_ssc_dai_device);
 }
 
 #else
diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
index 3ab2b86..5b6a6f9 100644
--- a/arch/arm/mach-at91/board-sam9g20ek.c
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -353,6 +353,22 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = {
         },
 };
 
+static struct platform_device sam9g20ek_pcm_device = {
+	.name	= "atmel-pcm-audio",
+	.id = -1,
+};
+
+static struct platform_device sam9g20ek_audio_device = {
+	.name   = "at91sam9g20ek-audio",
+	.id     = -1,
+};
+
+static void __init ek_add_device_audio(void)
+{
+	platform_device_register(&sam9g20ek_pcm_device);
+	platform_device_register(&sam9g20ek_audio_device);
+}
+
 
 static void __init ek_board_init(void)
 {
@@ -394,6 +410,7 @@ static void __init ek_board_init(void)
 	at91_set_B_periph(AT91_PIN_PC1, 0);
 	/* SSC (for WM8731) */
 	at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
+	ek_add_device_audio();
 }
 
 MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
-- 
1.7.9.5

Re: [PATCH 2/3] ASoC: sam9g20: using platform device for audio part

[Mark Brown]

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On Thu, Oct 11, 2012 at 10:38:16AM +0800, Bo Shen wrote:
> Signed-off-by: Bo Shen <voice.shen@atmel.com>

Applied, thanks.

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[PATCH 3/3] i2c: change the id to let the i2c-gpio work

[Bo Shen]

Signed-off-by: Bo Shen <voice.shen@atmel.com>
---
 arch/arm/mach-at91/at91sam9260_devices.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 0f24cfb..805ef95 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -389,7 +389,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9260_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
-- 
1.7.9.5

Re: [PATCH 3/3] i2c: change the id to let the i2c-gpio work

[Mark Brown]

On Thu, Oct 11, 2012 at 10:38:17AM +0800, Bo Shen wrote:

>  static struct platform_device at91sam9260_twi_device = {
>  	.name			= "i2c-gpio",
> -	.id			= -1,
> +	.id			= 0,
>  	.dev.platform_data	= &pdata,
>  };

Why would this have any effect on the operation of the i2c-gpio driver?
This suggests i2c-gpio is buggy.

Re: [PATCH 3/3] i2c: change the id to let the i2c-gpio work

[Bo Shen]

Hi Mark,

On 10/11/2012 15:11, Mark Brown wrote:
> On Thu, Oct 11, 2012 at 10:38:17AM +0800, Bo Shen wrote:
>
>>   static struct platform_device at91sam9260_twi_device = {
>>   	.name			= "i2c-gpio",
>> -	.id			= -1,
>> +	.id			= 0,
>>   	.dev.platform_data	= &pdata,
>>   };
>
> Why would this have any effect on the operation of the i2c-gpio driver?
> This suggests i2c-gpio is buggy.

This cause i2c devices can not register to the i2c bus which the device 
want.

I will send this patch to i2c maintainer.

Thanks

BR,
Bo Shen