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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/txx9/txx9aclc-ac97.c
parentb49dff8cb61cd4715991612e2eb6905b73a0be78 (diff)
downloadlinux-b047e1cce8fe32475ab61846772943a5e4c0a908.tar.bz2
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/txx9/txx9aclc-ac97.c')
-rw-r--r--sound/soc/txx9/txx9aclc-ac97.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/txx9/txx9aclc-ac97.c b/sound/soc/txx9/txx9aclc-ac97.c
index 8ee8d4220014..4bcce8a3cded 100644
--- a/sound/soc/txx9/txx9aclc-ac97.c
+++ b/sound/soc/txx9/txx9aclc-ac97.c
@@ -119,12 +119,11 @@ static void txx9aclc_ac97_cold_reset(struct snd_ac97 *ac97)
}
/* AC97 controller operations */
-struct snd_ac97_bus_ops soc_ac97_ops = {
+static struct snd_ac97_bus_ops txx9aclc_ac97_ops = {
.read = txx9aclc_ac97_read,
.write = txx9aclc_ac97_write,
.reset = txx9aclc_ac97_cold_reset,
};
-EXPORT_SYMBOL_GPL(soc_ac97_ops);
static irqreturn_t txx9aclc_ac97_irq(int irq, void *dev_id)
{
@@ -206,6 +205,10 @@ static int txx9aclc_ac97_dev_probe(struct platform_device *pdev)
if (err < 0)
return err;
+ err = snd_soc_set_ac97_ops(&txx9aclc_ac97_ops);
+ if (err < 0)
+ return err;
+
return snd_soc_register_component(&pdev->dev, &txx9aclc_ac97_component,
&txx9aclc_ac97_dai, 1);
}
@@ -213,6 +216,7 @@ static int txx9aclc_ac97_dev_probe(struct platform_device *pdev)
static int txx9aclc_ac97_dev_remove(struct platform_device *pdev)
{
snd_soc_unregister_component(&pdev->dev);
+ snd_soc_set_ac97_ops(NULL);
return 0;
}