ASoC: Add snd_soc_kcontrol_platform() helper function
For platform controls snd_kcontrol_chip() currently returns a pointer to the
platform that registered the control. With the upcoming consolidation of
platform and CODEC controls this will change. Prepare for this by introducing
the snd_soc_kcontrol_platform() helper function that will hide the
implementation details of how the platform for a control can be obtained. This
will allow us to change this easily in the future.
The patch also updates all platforms to use this new helper function.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/include/sound/soc.h b/include/sound/soc.h
index e150030..14e7457 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1242,6 +1242,20 @@
return snd_kcontrol_chip(kcontrol);
}
+/**
+ * snd_soc_kcontrol_platform() - Returns the platform that registerd the control
+ * @kcontrol: The control for which to get the platform
+ *
+ * Note: This function will only work correctly if the control has been
+ * registered with snd_soc_add_platform_controls() or via table based setup of
+ * a snd_soc_platform_driver. Otherwise the behavior is undefined.
+ */
+static inline struct snd_soc_codec *snd_soc_kcontrol_platform(
+ struct snd_kcontrol *kcontrol)
+{
+ return snd_kcontrol_chip(kcontrol);
+}
+
int snd_soc_util_init(void);
void snd_soc_util_exit(void);