From: Arnd Bergmann Date: Wed, 18 Nov 2015 21:31:11 +0000 (+0100) Subject: ASoC: samsung: pass filter function as pointer X-Git-Tag: v4.5-rc1~80^2~26^2~1^2~2^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9bdca822cbd6b66124f2298504b6c4526599dc8f;p=thirdparty%2Fkernel%2Flinux.git ASoC: samsung: pass filter function as pointer As we are now passing the filter data as pointers to the drivers, we can take the final step and also pass the filter function the same way. I'm keeping this change separate, as there it's less obvious that this is a net win. Upsides of this are: - The ASoC drivers are completely independent from the DMA engine implementation, which simplifies the Kconfig logic and in theory allows the same sound drivers to be built in a kernel that supports different kinds of dmaengine drivers. - Consistency with other subsystems and drivers On the other hand, we have a few downsides: - The s3c24xx-dma driver now needs to be built-in for the ac97 platform device to be instantiated on s3c2440. - samsung_dmaengine_pcm_config cannot be marked 'const' any more because the filter function pointer needs to be set at runtime. This is safe as long we don't have multiple different DMA engines in thet same system at runtime, but is nonetheless ugly. Signed-off-by: Arnd Bergmann Reviewed-by: Krzysztof Kozlowski Signed-off-by: Mark Brown --- diff --git a/arch/arm/mach-s3c64xx/dev-audio.c b/arch/arm/mach-s3c64xx/dev-audio.c index 9a42736ef4ac9..b57783371d525 100644 --- a/arch/arm/mach-s3c64xx/dev-audio.c +++ b/arch/arm/mach-s3c64xx/dev-audio.c @@ -58,6 +58,7 @@ static struct resource s3c64xx_iis0_resource[] = { static struct s3c_audio_pdata i2s0_pdata = { .cfg_gpio = s3c64xx_i2s_cfg_gpio, + .dma_filter = pl08x_filter_id, .dma_playback = DMACH_I2S0_OUT, .dma_capture = DMACH_I2S0_IN, }; @@ -79,6 +80,7 @@ static struct resource s3c64xx_iis1_resource[] = { static struct s3c_audio_pdata i2s1_pdata = { .cfg_gpio = s3c64xx_i2s_cfg_gpio, + .dma_filter = pl08x_filter_id, .dma_playback = DMACH_I2S1_OUT, .dma_capture = DMACH_I2S1_IN, }; @@ -100,6 +102,7 @@ static struct resource s3c64xx_iisv4_resource[] = { static struct s3c_audio_pdata i2sv4_pdata = { .cfg_gpio = s3c64xx_i2s_cfg_gpio, + .dma_filter = pl08x_filter_id, .dma_playback = DMACH_HSI_I2SV40_TX, .dma_capture = DMACH_HSI_I2SV40_RX, .type = { @@ -150,6 +153,7 @@ static struct resource s3c64xx_pcm0_resource[] = { static struct s3c_audio_pdata s3c_pcm0_pdata = { .cfg_gpio = s3c64xx_pcm_cfg_gpio, + .dma_filter = pl08x_filter_id, .dma_capture = DMACH_PCM0_RX, .dma_playback = DMACH_PCM0_TX, }; @@ -171,6 +175,7 @@ static struct resource s3c64xx_pcm1_resource[] = { static struct s3c_audio_pdata s3c_pcm1_pdata = { .cfg_gpio = s3c64xx_pcm_cfg_gpio, + .dma_filter = pl08x_filter_id, .dma_playback = DMACH_PCM1_TX, .dma_capture = DMACH_PCM1_RX, }; @@ -205,6 +210,7 @@ static struct resource s3c64xx_ac97_resource[] = { static struct s3c_audio_pdata s3c_ac97_pdata = { .dma_playback = DMACH_AC97_PCMOUT, + .dma_filter = pl08x_filter_id, .dma_capture = DMACH_AC97_PCMIN, .dma_capture_mic = DMACH_AC97_MICIN, }; diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 823de7b4e53b2..7263e95a6f354 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -78,6 +78,9 @@ static struct resource s3c_ac97_resource[] = { }; static struct s3c_audio_pdata s3c_ac97_pdata = { +#ifdef CONFIG_S3C24XX_DMAC + .dma_filter = s3c24xx_dma_filter, +#endif .dma_playback = (void *)DMACH_PCM_OUT, .dma_capture = (void *)DMACH_PCM_IN, .dma_capture_mic = (void *)DMACH_MIC_IN, @@ -572,6 +575,9 @@ static struct resource s3c_iis_resource[] = { }; static struct s3c_audio_pdata s3c_iis_platdata = { +#ifdef CONFIG_S3C24XX_DMAC + .dma_filter = s3c24xx_dma_filter, +#endif .dma_playback = (void *)DMACH_I2S_OUT, .dma_capture = (void *)DMACH_I2S_IN, }; diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index e6cd1a32025a9..17655d9ba518b 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -432,7 +432,7 @@ config STE_DMA40 Support for ST-Ericsson DMA40 controller config S3C24XX_DMAC - tristate "Samsung S3C24XX DMA support" + bool "Samsung S3C24XX DMA support" depends on ARCH_S3C24XX select DMA_ENGINE select DMA_VIRTUAL_CHANNELS diff --git a/include/linux/platform_data/asoc-s3c.h b/include/linux/platform_data/asoc-s3c.h index 33f88b4479e49..15bf56ee8af7d 100644 --- a/include/linux/platform_data/asoc-s3c.h +++ b/include/linux/platform_data/asoc-s3c.h @@ -13,6 +13,9 @@ */ #define S3C64XX_AC97_GPD 0 #define S3C64XX_AC97_GPE 1 + +#include + extern void s3c64xx_ac97_setup_gpio(int); struct samsung_i2s { @@ -39,6 +42,7 @@ struct samsung_i2s { */ struct s3c_audio_pdata { int (*cfg_gpio)(struct platform_device *); + dma_filter_fn dma_filter; void *dma_playback; void *dma_capture; void *dma_play_sec; diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index 3744c9ed53704..78baa26e938b5 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -1,8 +1,6 @@ config SND_SOC_SAMSUNG tristate "ASoC support for Samsung" depends on (PLAT_SAMSUNG || ARCH_EXYNOS) - depends on S3C64XX_PL080 || !ARCH_S3C64XX - depends on S3C24XX_DMAC || !ARCH_S3C24XX select SND_SOC_GENERIC_DMAENGINE_PCM help Say Y or M if you want to add support for codecs attached to diff --git a/sound/soc/samsung/ac97.c b/sound/soc/samsung/ac97.c index 9c52193924603..4a7a503fe13c1 100644 --- a/sound/soc/samsung/ac97.c +++ b/sound/soc/samsung/ac97.c @@ -388,7 +388,8 @@ static int s3c_ac97_probe(struct platform_device *pdev) if (ret) goto err5; - ret = samsung_asoc_dma_platform_register(&pdev->dev); + ret = samsung_asoc_dma_platform_register(&pdev->dev, + ac97_pdata->dma_filter); if (ret) { dev_err(&pdev->dev, "failed to get register DMA: %d\n", ret); goto err5; diff --git a/sound/soc/samsung/dma.h b/sound/soc/samsung/dma.h index 085ef30f5ca28..a7616cc9b39ee 100644 --- a/sound/soc/samsung/dma.h +++ b/sound/soc/samsung/dma.h @@ -13,6 +13,7 @@ #define _S3C_AUDIO_H #include +#include struct s3c_dma_params { void *slave; /* Channel ID */ @@ -25,6 +26,7 @@ struct s3c_dma_params { void samsung_asoc_init_dma_data(struct snd_soc_dai *dai, struct s3c_dma_params *playback, struct s3c_dma_params *capture); -int samsung_asoc_dma_platform_register(struct device *dev); +int samsung_asoc_dma_platform_register(struct device *dev, + dma_filter_fn fn); #endif diff --git a/sound/soc/samsung/dmaengine.c b/sound/soc/samsung/dmaengine.c index 727008d57d143..063125937311e 100644 --- a/sound/soc/samsung/dmaengine.c +++ b/sound/soc/samsung/dmaengine.c @@ -28,17 +28,8 @@ #include "dma.h" -#ifdef CONFIG_ARCH_S3C64XX -#define filter_fn pl08x_filter_id -#elif defined(CONFIG_ARCH_S3C24XX) -#define filter_fn s3c24xx_dma_filter -#else -#define filter_fn NULL -#endif - -static const struct snd_dmaengine_pcm_config samsung_dmaengine_pcm_config = { +static struct snd_dmaengine_pcm_config samsung_dmaengine_pcm_config = { .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, - .compat_filter_fn = filter_fn, }; void samsung_asoc_init_dma_data(struct snd_soc_dai *dai, @@ -67,8 +58,11 @@ void samsung_asoc_init_dma_data(struct snd_soc_dai *dai, } EXPORT_SYMBOL_GPL(samsung_asoc_init_dma_data); -int samsung_asoc_dma_platform_register(struct device *dev) +int samsung_asoc_dma_platform_register(struct device *dev, + dma_filter_fn filter) { + samsung_dmaengine_pcm_config.compat_filter_fn = filter; + return devm_snd_dmaengine_pcm_register(dev, &samsung_dmaengine_pcm_config, SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME | diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 0945b5de39e7f..84d9e77c0fbe1 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -89,6 +89,7 @@ struct i2s_dai { struct s3c_dma_params dma_playback; struct s3c_dma_params dma_capture; struct s3c_dma_params idma_playback; + dma_filter_fn filter; u32 quirks; u32 suspend_i2smod; u32 suspend_i2scon; @@ -1244,7 +1245,8 @@ static int samsung_i2s_probe(struct platform_device *pdev) if (ret != 0) return ret; - return samsung_asoc_dma_platform_register(&pdev->dev); + return samsung_asoc_dma_platform_register(&pdev->dev, + sec_dai->filter); } pri_dai = i2s_alloc_dai(pdev, false); @@ -1264,6 +1266,7 @@ static int samsung_i2s_probe(struct platform_device *pdev) pri_dai->dma_playback.slave = i2s_pdata->dma_playback; pri_dai->dma_capture.slave = i2s_pdata->dma_capture; + pri_dai->filter = i2s_pdata->dma_filter; if (&i2s_pdata->type) i2s_cfg = &i2s_pdata->type.i2s; @@ -1325,8 +1328,10 @@ static int samsung_i2s_probe(struct platform_device *pdev) sec_dai->dma_playback.dma_addr = regs_base + I2STXDS; sec_dai->dma_playback.ch_name = "tx-sec"; - if (!np) + if (!np) { sec_dai->dma_playback.slave = i2s_pdata->dma_play_sec; + sec_dai->filter = i2s_pdata->dma_filter; + } sec_dai->dma_playback.dma_size = 4; sec_dai->addr = pri_dai->addr; @@ -1348,7 +1353,7 @@ static int samsung_i2s_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); - ret = samsung_asoc_dma_platform_register(&pdev->dev); + ret = samsung_asoc_dma_platform_register(&pdev->dev, pri_dai->filter); if (ret != 0) return ret; diff --git a/sound/soc/samsung/pcm.c b/sound/soc/samsung/pcm.c index c77f324e0bb85..498f563a4c9cb 100644 --- a/sound/soc/samsung/pcm.c +++ b/sound/soc/samsung/pcm.c @@ -488,6 +488,7 @@ static int s3c_pcm_dev_probe(struct platform_device *pdev) struct s3c_pcm_info *pcm; struct resource *mem_res; struct s3c_audio_pdata *pcm_pdata; + dma_filter_fn filter; int ret; /* Check for valid device index */ @@ -556,9 +557,11 @@ static int s3c_pcm_dev_probe(struct platform_device *pdev) s3c_pcm_stereo_out[pdev->id].dma_addr = mem_res->start + S3C_PCM_TXFIFO; + filter = NULL; if (pcm_pdata) { s3c_pcm_stereo_in[pdev->id].slave = pcm_pdata->dma_capture; s3c_pcm_stereo_out[pdev->id].slave = pcm_pdata->dma_playback; + filter = pcm_pdata->dma_filter; } pcm->dma_capture = &s3c_pcm_stereo_in[pdev->id]; @@ -573,7 +576,7 @@ static int s3c_pcm_dev_probe(struct platform_device *pdev) goto err5; } - ret = samsung_asoc_dma_platform_register(&pdev->dev); + ret = samsung_asoc_dma_platform_register(&pdev->dev, filter); if (ret) { dev_err(&pdev->dev, "failed to get register DMA: %d\n", ret); goto err5; diff --git a/sound/soc/samsung/s3c2412-i2s.c b/sound/soc/samsung/s3c2412-i2s.c index 105317f523f26..204029d12f5b2 100644 --- a/sound/soc/samsung/s3c2412-i2s.c +++ b/sound/soc/samsung/s3c2412-i2s.c @@ -25,7 +25,6 @@ #include #include -#include #include #include @@ -177,7 +176,8 @@ static int s3c2412_iis_dev_probe(struct platform_device *pdev) return ret; } - ret = samsung_asoc_dma_platform_register(&pdev->dev); + ret = samsung_asoc_dma_platform_register(&pdev->dev, + pdata->dma_filter); if (ret) pr_err("failed to register the DMA: %d\n", ret); diff --git a/sound/soc/samsung/s3c24xx-i2s.c b/sound/soc/samsung/s3c24xx-i2s.c index 9e6a5bc012e34..b3a475d73ba79 100644 --- a/sound/soc/samsung/s3c24xx-i2s.c +++ b/sound/soc/samsung/s3c24xx-i2s.c @@ -23,7 +23,6 @@ #include #include -#include #include #include #include "regs-iis.h" @@ -482,7 +481,8 @@ static int s3c24xx_iis_dev_probe(struct platform_device *pdev) return ret; } - ret = samsung_asoc_dma_platform_register(&pdev->dev); + ret = samsung_asoc_dma_platform_register(&pdev->dev, + pdata->dma_filter); if (ret) pr_err("failed to register the dma: %d\n", ret); diff --git a/sound/soc/samsung/spdif.c b/sound/soc/samsung/spdif.c index 9dd7ee6d03ff1..4687f521197c5 100644 --- a/sound/soc/samsung/spdif.c +++ b/sound/soc/samsung/spdif.c @@ -361,6 +361,7 @@ static int spdif_probe(struct platform_device *pdev) struct s3c_audio_pdata *spdif_pdata; struct resource *mem_res; struct samsung_spdif_info *spdif; + dma_filter_fn filter; int ret; spdif_pdata = pdev->dev.platform_data; @@ -426,11 +427,15 @@ static int spdif_probe(struct platform_device *pdev) spdif_stereo_out.dma_size = 2; spdif_stereo_out.dma_addr = mem_res->start + DATA_OUTBUF; - spdif_stereo_out.slave = spdif_pdata ? spdif_pdata->dma_playback : NULL; + filter = NULL; + if (spdif_pdata) { + spdif_stereo_out.slave = spdif_pdata->dma_playback; + filter = spdif_pdata->dma_filter; + } spdif->dma_playback = &spdif_stereo_out; - ret = samsung_asoc_dma_platform_register(&pdev->dev); + ret = samsung_asoc_dma_platform_register(&pdev->dev, filter); if (ret) { dev_err(&pdev->dev, "failed to register DMA: %d\n", ret); goto err4;