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ASoC: max9768: add driver for max9768 amplifier

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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>
This commit is contained in:
Wolfram Sang
2012-01-27 16:10:23 +01:00
committed by Mark Brown
parent ffa8d9df55
commit 394d2bbae3
4 changed files with 283 additions and 0 deletions
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24
include/sound/max9768.h Normal file
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/*
* 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__*/