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authorMark Brown <broonie@linaro.org>2013-06-26 13:45:59 +0200
committerMark Brown <broonie@linaro.org>2013-06-27 10:48:42 +0200
commitb047e1cce8fe32475ab61846772943a5e4c0a908 (patch)
tree9d04d8101d161b96f96c2e2e5bd03900011828ec /sound/soc/pxa/pxa2xx-ac97.c
parentMerge branch 'topic/wm9705' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
downloadlinux-b047e1cce8fe32475ab61846772943a5e4c0a908.tar.xz
linux-b047e1cce8fe32475ab61846772943a5e4c0a908.zip
ASoC: ac97: Support multi-platform AC'97
Currently we can only have a single platform built in with AC'97 support due to the use of a global variable to provide the bus operations. Fix this by making that variable a pointer and having the bus drivers set the operations prior to registering. This is not a particularly good or nice approach but it avoids blocking multiplatform and a real fix involves fixing the fairly deep problems with AC'97 support - we should be converting it to a real bus. Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/pxa/pxa2xx-ac97.c')
-rw-r--r--sound/soc/pxa/pxa2xx-ac97.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index 57ea8e6c5488..a3c22ba25f08 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -41,13 +41,12 @@ static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
pxa2xx_ac97_finish_reset(ac97);
}
-struct snd_ac97_bus_ops soc_ac97_ops = {
+static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
.read = pxa2xx_ac97_read,
.write = pxa2xx_ac97_write,
.warm_reset = pxa2xx_ac97_warm_reset,
.reset = pxa2xx_ac97_cold_reset,
};
-EXPORT_SYMBOL_GPL(soc_ac97_ops);
static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
.name = "AC97 PCM Stereo out",
@@ -244,6 +243,10 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
return -ENXIO;
}
+ ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops);
+ if (ret != 0)
+ return ret;
+
/* Punt most of the init to the SoC probe; we may need the machine
* driver to do interesting things with the clocking to get us up
* and running.
@@ -255,6 +258,7 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
{
snd_soc_unregister_component(&pdev->dev);
+ snd_soc_set_ac97_ops(NULL);
return 0;
}