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authorWolfram Sang <w.sang@pengutronix.de>2012-01-27 16:10:23 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-01-30 21:50:55 +0000
commit394d2bbae3dbde0972b90415fc4b5628bbfd700f (patch)
tree636760ae79af3892dab34114582f497190db3a42 /include/sound
parentffa8d9df55206b72c94b33138e1feaafcaeaffdb (diff)
downloadlinux-394d2bbae3dbde0972b90415fc4b5628bbfd700f.tar.bz2
ASoC: max9768: add driver for max9768 amplifier
Add a driver supporting the volume control and the mute pin. Shdn pin and DAPM are not taken care of yet. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/max9768.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/sound/max9768.h b/include/sound/max9768.h
new file mode 100644
index 000000000000..0f78b41d030e
--- /dev/null
+++ b/include/sound/max9768.h
@@ -0,0 +1,24 @@
+/*
+ * Platform data for MAX9768
+ * Copyright (C) 2011, 2012 by Wolfram Sang, Pengutronix e.K.
+ * same licence as the driver
+ */
+
+#ifndef __SOUND_MAX9768_PDATA_H__
+#define __SOUND_MAX9768_PDATA_H__
+
+/**
+ * struct max9768_pdata - optional platform specific MAX9768 configuration
+ * @shdn_gpio: GPIO to SHDN pin. If not valid, pin must be hardwired HIGH
+ * @mute_gpio: GPIO to MUTE pin. If not valid, control for mute won't be added
+ * @flags: configuration flags, e.g. set classic PWM mode (check datasheet
+ * regarding "filterless modulation" which is default).
+ */
+struct max9768_pdata {
+ int shdn_gpio;
+ int mute_gpio;
+ unsigned flags;
+#define MAX9768_FLAG_CLASSIC_PWM (1 << 0)
+};
+
+#endif /* __SOUND_MAX9768_PDATA_H__*/