diff options
author | Bo Shen <voice.shen@atmel.com> | 2012-11-14 14:09:09 +0400 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-11-16 05:24:38 +0400 |
commit | be681a8275a4322e7b2301250b52247cce06c3be (patch) | |
tree | 4cbcc825e33e4d1f8ac6699dea2737f9f46f7725 /sound/soc/atmel/atmel_ssc_dai.c | |
parent | 099343c64e1615ae83b0994197027be363ca4899 (diff) | |
download | linux-be681a8275a4322e7b2301250b52247cce06c3be.tar.xz |
ASoC: atmel-ssc-dai: register dai and pcm directly
change the method for register dai and pcm
- let the atmel-ssc-dai no longer as a standalone platform device
- remap ssc and then register dai directly
- register pcm from dai directly
- modify the code which related with this change
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/atmel/atmel_ssc_dai.c')
-rw-r--r-- | sound/soc/atmel/atmel_ssc_dai.c | 157 |
1 files changed, 39 insertions, 118 deletions
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c index 354341ec0f42..7932c052b736 100644 --- a/sound/soc/atmel/atmel_ssc_dai.c +++ b/sound/soc/atmel/atmel_ssc_dai.c @@ -48,11 +48,7 @@ #include "atmel_ssc_dai.h" -#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20) -#define NUM_SSC_DEVICES 1 -#else #define NUM_SSC_DEVICES 3 -#endif /* * SSC PDC registers required by the PCM DMA engine. @@ -107,7 +103,6 @@ static struct atmel_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = { .pdc = &pdc_rx_reg, .mask = &ssc_rx_mask, } }, -#if NUM_SSC_DEVICES == 3 {{ .name = "SSC1 PCM out", .pdc = &pdc_tx_reg, @@ -128,7 +123,6 @@ static struct atmel_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = { .pdc = &pdc_rx_reg, .mask = &ssc_rx_mask, } }, -#endif }; @@ -139,7 +133,6 @@ static struct atmel_ssc_info ssc_info[NUM_SSC_DEVICES] = { .dir_mask = SSC_DIR_MASK_UNUSED, .initialized = 0, }, -#if NUM_SSC_DEVICES == 3 { .name = "ssc1", .lock = __SPIN_LOCK_UNLOCKED(ssc_info[1].lock), @@ -152,7 +145,6 @@ static struct atmel_ssc_info ssc_info[NUM_SSC_DEVICES] = { .dir_mask = SSC_DIR_MASK_UNUSED, .initialized = 0, }, -#endif }; @@ -690,27 +682,9 @@ static int atmel_ssc_resume(struct snd_soc_dai *cpu_dai) static int atmel_ssc_probe(struct snd_soc_dai *dai) { struct atmel_ssc_info *ssc_p = &ssc_info[dai->id]; - int ret = 0; snd_soc_dai_set_drvdata(dai, ssc_p); - /* - * Request SSC device - */ - ssc_p->ssc = ssc_request(dai->id); - if (IS_ERR(ssc_p->ssc)) { - printk(KERN_ERR "ASoC: Failed to request SSC %d\n", dai->id); - ret = PTR_ERR(ssc_p->ssc); - } - - return ret; -} - -static int atmel_ssc_remove(struct snd_soc_dai *dai) -{ - struct atmel_ssc_info *ssc_p = snd_soc_dai_get_drvdata(dai); - - ssc_free(ssc_p->ssc); return 0; } @@ -728,48 +702,8 @@ static const struct snd_soc_dai_ops atmel_ssc_dai_ops = { .set_clkdiv = atmel_ssc_set_dai_clkdiv, }; -static struct snd_soc_dai_driver atmel_ssc_dai[NUM_SSC_DEVICES] = { - { - .name = "atmel-ssc-dai.0", - .probe = atmel_ssc_probe, - .remove = atmel_ssc_remove, - .suspend = atmel_ssc_suspend, - .resume = atmel_ssc_resume, - .playback = { - .channels_min = 1, - .channels_max = 2, - .rates = ATMEL_SSC_RATES, - .formats = ATMEL_SSC_FORMATS,}, - .capture = { - .channels_min = 1, - .channels_max = 2, - .rates = ATMEL_SSC_RATES, - .formats = ATMEL_SSC_FORMATS,}, - .ops = &atmel_ssc_dai_ops, - }, -#if NUM_SSC_DEVICES == 3 - { - .name = "atmel-ssc-dai.1", - .probe = atmel_ssc_probe, - .remove = atmel_ssc_remove, - .suspend = atmel_ssc_suspend, - .resume = atmel_ssc_resume, - .playback = { - .channels_min = 1, - .channels_max = 2, - .rates = ATMEL_SSC_RATES, - .formats = ATMEL_SSC_FORMATS,}, - .capture = { - .channels_min = 1, - .channels_max = 2, - .rates = ATMEL_SSC_RATES, - .formats = ATMEL_SSC_FORMATS,}, - .ops = &atmel_ssc_dai_ops, - }, - { - .name = "atmel-ssc-dai.2", +static struct snd_soc_dai_driver atmel_ssc_dai = { .probe = atmel_ssc_probe, - .remove = atmel_ssc_remove, .suspend = atmel_ssc_suspend, .resume = atmel_ssc_resume, .playback = { @@ -783,32 +717,37 @@ static struct snd_soc_dai_driver atmel_ssc_dai[NUM_SSC_DEVICES] = { .rates = ATMEL_SSC_RATES, .formats = ATMEL_SSC_FORMATS,}, .ops = &atmel_ssc_dai_ops, - }, -#endif }; -static __devinit int asoc_ssc_probe(struct platform_device *pdev) +static int asoc_ssc_init(struct device *dev) { - BUG_ON(pdev->id < 0); - BUG_ON(pdev->id >= ARRAY_SIZE(atmel_ssc_dai)); - return snd_soc_register_dai(&pdev->dev, &atmel_ssc_dai[pdev->id]); -} + int ret; + + ret = snd_soc_register_dai(dev, &atmel_ssc_dai); + if (ret) { + dev_err(dev, "Could not register DAI: %d\n", ret); + goto err; + } + + ret = atmel_pcm_platform_register(dev); + if (ret) { + dev_err(dev, "Could not register PCM: %d\n", ret); + goto err_unregister_dai; + }; -static int __devexit asoc_ssc_remove(struct platform_device *pdev) -{ - snd_soc_unregister_dai(&pdev->dev); return 0; -} -static struct platform_driver asoc_ssc_driver = { - .driver = { - .name = "atmel-ssc-dai", - .owner = THIS_MODULE, - }, +err_unregister_dai: + snd_soc_unregister_dai(dev); +err: + return ret; +} - .probe = asoc_ssc_probe, - .remove = __devexit_p(asoc_ssc_remove), -}; +static void asoc_ssc_exit(struct device *dev) +{ + atmel_pcm_platform_unregister(dev); + snd_soc_unregister_dai(dev); +} /** * atmel_ssc_set_audio - Allocate the specified SSC for audio use. @@ -816,50 +755,32 @@ static struct platform_driver asoc_ssc_driver = { int atmel_ssc_set_audio(int ssc_id) { struct ssc_device *ssc; - static struct platform_device *dma_pdev; - struct platform_device *ssc_pdev; int ret; - if (ssc_id < 0 || ssc_id >= ARRAY_SIZE(atmel_ssc_dai)) - return -EINVAL; - - /* Allocate a dummy device for DMA if we don't have one already */ - if (!dma_pdev) { - dma_pdev = platform_device_alloc("atmel-pcm-audio", -1); - if (!dma_pdev) - return -ENOMEM; - - ret = platform_device_add(dma_pdev); - if (ret < 0) { - platform_device_put(dma_pdev); - dma_pdev = NULL; - return ret; - } - } - - ssc_pdev = platform_device_alloc("atmel-ssc-dai", ssc_id); - if (!ssc_pdev) - return -ENOMEM; - /* If we can grab the SSC briefly to parent the DAI device off it */ ssc = ssc_request(ssc_id); - if (IS_ERR(ssc)) - pr_warn("Unable to parent ASoC SSC DAI on SSC: %ld\n", + if (IS_ERR(ssc)) { + pr_err("Unable to parent ASoC SSC DAI on SSC: %ld\n", PTR_ERR(ssc)); - else { - ssc_pdev->dev.parent = &(ssc->pdev->dev); - ssc_free(ssc); + return PTR_ERR(ssc); + } else { + ssc_info[ssc_id].ssc = ssc; } - ret = platform_device_add(ssc_pdev); - if (ret < 0) - platform_device_put(ssc_pdev); + ret = asoc_ssc_init(&ssc->pdev->dev); return ret; } EXPORT_SYMBOL_GPL(atmel_ssc_set_audio); -module_platform_driver(asoc_ssc_driver); +void atmel_ssc_put_audio(int ssc_id) +{ + struct ssc_device *ssc = ssc_info[ssc_id].ssc; + + ssc_free(ssc); + asoc_ssc_exit(&ssc->pdev->dev); +} +EXPORT_SYMBOL_GPL(atmel_ssc_put_audio); /* Module information */ MODULE_AUTHOR("Sedji Gaouaou, sedji.gaouaou@atmel.com, www.atmel.com"); |