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authorMark Brown <broonie@linaro.org>2013-06-26 12:45:59 +0100
committerMark Brown <broonie@linaro.org>2013-06-27 09:48:42 +0100
commitb047e1cce8fe32475ab61846772943a5e4c0a908 (patch)
tree9d04d8101d161b96f96c2e2e5bd03900011828ec /sound/soc/sh/hac.c
parentb49dff8cb61cd4715991612e2eb6905b73a0be78 (diff)
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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/sh/hac.c')
-rw-r--r--sound/soc/sh/hac.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/sh/hac.c b/sound/soc/sh/hac.c
index af19f77b7bf0..0af2e4dfd139 100644
--- a/sound/soc/sh/hac.c
+++ b/sound/soc/sh/hac.c
@@ -227,13 +227,12 @@ static void hac_ac97_coldrst(struct snd_ac97 *ac97)
hac_ac97_warmrst(ac97);
}
-struct snd_ac97_bus_ops soc_ac97_ops = {
+static struct snd_ac97_bus_ops hac_ac97_ops = {
.read = hac_ac97_read,
.write = hac_ac97_write,
.reset = hac_ac97_coldrst,
.warm_reset = hac_ac97_warmrst,
};
-EXPORT_SYMBOL_GPL(soc_ac97_ops);
static int hac_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
@@ -316,6 +315,10 @@ static const struct snd_soc_component_driver sh4_hac_component = {
static int hac_soc_platform_probe(struct platform_device *pdev)
{
+ ret = snd_soc_set_ac97_ops(&hac_ac97_ops);
+ if (ret != 0)
+ return ret;
+
return snd_soc_register_component(&pdev->dev, &sh4_hac_component,
sh4_hac_dai, ARRAY_SIZE(sh4_hac_dai));
}
@@ -323,6 +326,7 @@ static int hac_soc_platform_probe(struct platform_device *pdev)
static int hac_soc_platform_remove(struct platform_device *pdev)
{
snd_soc_unregister_component(&pdev->dev);
+ snd_soc_set_ac97_ops(NULL);
return 0;
}