ASoC: au1x: convert to platform drivers.
Convert psc-ac97,i2s to platform drivers similar to the davinci ones.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/au1x/dbdma2.c b/sound/soc/au1x/dbdma2.c
index 594c6c5..fe9f465 100644
--- a/sound/soc/au1x/dbdma2.c
+++ b/sound/soc/au1x/dbdma2.c
@@ -2,7 +2,7 @@
* Au12x0/Au1550 PSC ALSA ASoC audio support.
*
* (c) 2007-2008 MSC Vertriebsges.m.b.H.,
- * Manuel Lauss <mano@roarinelk.homelinux.net>
+ * Manuel Lauss <manuel.lauss@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -333,6 +333,30 @@
static int au1xpsc_pcm_probe(struct platform_device *pdev)
{
+ if (!au1xpsc_audio_pcmdma[PCM_TX] || !au1xpsc_audio_pcmdma[PCM_RX])
+ return -ENODEV;
+
+ return 0;
+}
+
+static int au1xpsc_pcm_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+/* au1xpsc audio platform */
+struct snd_soc_platform au1xpsc_soc_platform = {
+ .name = "au1xpsc-pcm-dbdma",
+ .probe = au1xpsc_pcm_probe,
+ .remove = au1xpsc_pcm_remove,
+ .pcm_ops = &au1xpsc_pcm_ops,
+ .pcm_new = au1xpsc_pcm_new,
+ .pcm_free = au1xpsc_pcm_free_dma_buffers,
+};
+EXPORT_SYMBOL_GPL(au1xpsc_soc_platform);
+
+static int __devinit au1xpsc_pcm_drvprobe(struct platform_device *pdev)
+{
struct resource *r;
int ret;
@@ -365,7 +389,9 @@
}
(au1xpsc_audio_pcmdma[PCM_RX])->ddma_id = r->start;
- return 0;
+ ret = snd_soc_register_platform(&au1xpsc_soc_platform);
+ if (!ret)
+ return ret;
out2:
kfree(au1xpsc_audio_pcmdma[PCM_RX]);
@@ -376,10 +402,12 @@
return ret;
}
-static int au1xpsc_pcm_remove(struct platform_device *pdev)
+static int __devexit au1xpsc_pcm_drvremove(struct platform_device *pdev)
{
int i;
+ snd_soc_unregister_platform(&au1xpsc_soc_platform);
+
for (i = 0; i < 2; i++) {
if (au1xpsc_audio_pcmdma[i]) {
au1x_pcm_dbdma_free(au1xpsc_audio_pcmdma[i]);
@@ -391,32 +419,83 @@
return 0;
}
-/* au1xpsc audio platform */
-struct snd_soc_platform au1xpsc_soc_platform = {
- .name = "au1xpsc-pcm-dbdma",
- .probe = au1xpsc_pcm_probe,
- .remove = au1xpsc_pcm_remove,
- .pcm_ops = &au1xpsc_pcm_ops,
- .pcm_new = au1xpsc_pcm_new,
- .pcm_free = au1xpsc_pcm_free_dma_buffers,
+static struct platform_driver au1xpsc_pcm_driver = {
+ .driver = {
+ .name = "au1xpsc-pcm",
+ .owner = THIS_MODULE,
+ },
+ .probe = au1xpsc_pcm_drvprobe,
+ .remove = __devexit_p(au1xpsc_pcm_drvremove),
};
-EXPORT_SYMBOL_GPL(au1xpsc_soc_platform);
-static int __init au1xpsc_audio_dbdma_init(void)
+static int __init au1xpsc_audio_dbdma_load(void)
{
au1xpsc_audio_pcmdma[PCM_TX] = NULL;
au1xpsc_audio_pcmdma[PCM_RX] = NULL;
- return snd_soc_register_platform(&au1xpsc_soc_platform);
+ return platform_driver_register(&au1xpsc_pcm_driver);
}
-static void __exit au1xpsc_audio_dbdma_exit(void)
+static void __exit au1xpsc_audio_dbdma_unload(void)
{
- snd_soc_unregister_platform(&au1xpsc_soc_platform);
+ platform_driver_unregister(&au1xpsc_pcm_driver);
}
-module_init(au1xpsc_audio_dbdma_init);
-module_exit(au1xpsc_audio_dbdma_exit);
+module_init(au1xpsc_audio_dbdma_load);
+module_exit(au1xpsc_audio_dbdma_unload);
+
+
+struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev)
+{
+ struct resource *res, *r;
+ struct platform_device *pd;
+ int id[2];
+ int ret;
+
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!r)
+ return NULL;
+ id[0] = r->start;
+
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (!r)
+ return NULL;
+ id[1] = r->start;
+
+ res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+ if (!res)
+ return NULL;
+
+ res[0].start = res[0].end = id[0];
+ res[1].start = res[1].end = id[1];
+ res[0].flags = res[1].flags = IORESOURCE_DMA;
+
+ pd = platform_device_alloc("au1xpsc-pcm", -1);
+ if (!pd)
+ goto out;
+
+ pd->resource = res;
+ pd->num_resources = 2;
+
+ ret = platform_device_add(pd);
+ if (!ret)
+ return pd;
+
+out:
+ kfree(res);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(au1xpsc_pcm_add);
+
+void au1xpsc_pcm_destroy(struct platform_device *dmapd)
+{
+ if (dmapd) {
+ kfree(dmapd->resource);
+ dmapd->resource = NULL;
+ platform_device_unregister(dmapd);
+ }
+}
+EXPORT_SYMBOL_GPL(au1xpsc_pcm_destroy);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Au12x0/Au1550 PSC Audio DMA driver");
-MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");
+MODULE_AUTHOR("Manuel Lauss");