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ASoC: sun4i-codec: Revise comments for register definition macros

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This revises existing comments in the register definition macros
section, and adds a few more, so that readers can clearly identify
the types of control registers.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chen-Yu Tsai 2016-11-03 15:55:45 +08:00 committed by Mark Brown
parent 2f2a3462bc
commit bd720ecf4e
1 changed files with 11 additions and 3 deletions
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14
sound/soc/sunxi/sun4i-codec.c
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@ -38,7 +38,7 @@
#include <sound/initval.h>
#include <sound/dmaengine_pcm.h>
/* Codec DAC register offsets and bit fields */
/* Codec DAC digital controls and FIFO registers */
#define SUN4I_CODEC_DAC_DPC (0x00)
#define SUN4I_CODEC_DAC_DPC_EN_DA (31)
#define SUN4I_CODEC_DAC_DPC_DVOL (12)
@ -55,6 +55,8 @@
#define SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH (0)
#define SUN4I_CODEC_DAC_FIFOS (0x08)
#define SUN4I_CODEC_DAC_TXDATA (0x0c)
/* Codec DAC side analog signal controls */
#define SUN4I_CODEC_DAC_ACTL (0x10)
#define SUN4I_CODEC_DAC_ACTL_DACAENR (31)
#define SUN4I_CODEC_DAC_ACTL_DACAENL (30)
@ -69,7 +71,7 @@
#define SUN4I_CODEC_DAC_TUNE (0x14)
#define SUN4I_CODEC_DAC_DEBUG (0x18)
/* Codec ADC register offsets and bit fields */
/* Codec ADC digital controls and FIFO registers */
#define SUN4I_CODEC_ADC_FIFOC (0x1c)
#define SUN4I_CODEC_ADC_FIFOC_ADC_FS (29)
#define SUN4I_CODEC_ADC_FIFOC_EN_AD (28)
@ -81,6 +83,8 @@
#define SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH (0)
#define SUN4I_CODEC_ADC_FIFOS (0x20)
#define SUN4I_CODEC_ADC_RXDATA (0x24)
/* Codec ADC side analog signal controls */
#define SUN4I_CODEC_ADC_ACTL (0x28)
#define SUN4I_CODEC_ADC_ACTL_ADC_R_EN (31)
#define SUN4I_CODEC_ADC_ACTL_ADC_L_EN (30)
@ -93,10 +97,14 @@
#define SUN4I_CODEC_ADC_ACTL_DDE (3)
#define SUN4I_CODEC_ADC_DEBUG (0x2c)
/* Other various ADC registers */
/* FIFO counters */
#define SUN4I_CODEC_DAC_TXCNT (0x30)
#define SUN4I_CODEC_ADC_RXCNT (0x34)
/* Calibration register (sun7i only) */
#define SUN7I_CODEC_AC_DAC_CAL (0x38)
/* Microphone controls (sun7i only) */
#define SUN7I_CODEC_AC_MIC_PHONE_CAL (0x3c)
struct sun4i_codec {