diff options
| author | Manuel Lauss <manuel.lauss@googlemail.com> | 2011-07-25 13:45:02 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-07-27 19:16:23 +0100 |
| commit | 5b0912be7a8ff1dbfe56358c5f933d65445bb8af (patch) | |
| tree | 6b0681c2a5e783be00d4f404ad902596b3235b9f /sound/soc/au1x/psc-ac97.c | |
| parent | 7137c6bcb7ff5d0e6f63f8a4175d5b77dc79abc0 (diff) | |
| download | linux-5b0912be7a8ff1dbfe56358c5f933d65445bb8af.tar.bz2 | |
ASoC: au1x: remove automatic DMA device registration from PSC drivers
The PSC audio drivers (psc-ac97/psc-i2s) register the DMA platform_device
on their own. This is frowned upon, from now on board code must
register a simple pcm dma platform device for each PSC with sound duties.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/au1x/psc-ac97.c')
| -rw-r--r-- | sound/soc/au1x/psc-ac97.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/sound/soc/au1x/psc-ac97.c b/sound/soc/au1x/psc-ac97.c index d0db66f24a00..44296abfc38f 100644 --- a/sound/soc/au1x/psc-ac97.c +++ b/sound/soc/au1x/psc-ac97.c @@ -324,12 +324,21 @@ static int au1xpsc_ac97_trigger(struct snd_pcm_substream *substream, return ret; } +static int au1xpsc_ac97_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct au1xpsc_audio_data *pscdata = snd_soc_dai_get_drvdata(dai); + snd_soc_dai_set_dma_data(dai, substream, &pscdata->dmaids[0]); + return 0; +} + static int au1xpsc_ac97_probe(struct snd_soc_dai *dai) { return au1xpsc_ac97_workdata ? 0 : -ENODEV; } static struct snd_soc_dai_ops au1xpsc_ac97_dai_ops = { + .startup = au1xpsc_ac97_startup, .trigger = au1xpsc_ac97_trigger, .hw_params = au1xpsc_ac97_hw_params, }; @@ -379,6 +388,16 @@ static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev) if (!wd->mmio) goto out1; + r = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!r) + goto out2; + wd->dmaids[PCM_TX] = r->start; + + r = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (!r) + goto out2; + wd->dmaids[PCM_RX] = r->start; + /* configuration: max dma trigger threshold, enable ac97 */ wd->cfg = PSC_AC97CFG_RT_FIFO8 | PSC_AC97CFG_TT_FIFO8 | PSC_AC97CFG_DE_ENABLE; @@ -401,15 +420,13 @@ static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev) ret = snd_soc_register_dai(&pdev->dev, &wd->dai_drv); if (ret) - goto out1; + goto out2; - wd->dmapd = au1xpsc_pcm_add(pdev); - if (wd->dmapd) { - au1xpsc_ac97_workdata = wd; - return 0; - } + au1xpsc_ac97_workdata = wd; + return 0; - snd_soc_unregister_dai(&pdev->dev); +out2: + iounmap(wd->mmio); out1: release_mem_region(r->start, resource_size(r)); out0: @@ -422,9 +439,6 @@ static int __devexit au1xpsc_ac97_drvremove(struct platform_device *pdev) struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev); struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (wd->dmapd) - au1xpsc_pcm_destroy(wd->dmapd); - snd_soc_unregister_dai(&pdev->dev); /* disable PSC completely */ |