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ASoC: fsl_ssi: Redefine RX and TX macros

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The RX and TX macros were defined implicitly and there was
a potential risk if someone changes their values.

Since they were defined to index the array ssi->regvals[2],
this patch moves these two macros to fsl_ssi.c, closer to
its owner ssi->regvals. And it also puts some comments here
to limit their value within [0, 1].

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Tested-by: Caleb Crome <caleb@crome.org>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Nicolin Chen 2018-02-12 14:03:09 -08:00 committed by Mark Brown
parent da18bcf722
commit 1476105c3f
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
2 changed files with 4 additions and 3 deletions
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4
sound/soc/fsl/fsl_ssi.c
View file

@ -56,6 +56,10 @@
#include "fsl_ssi.h"
#include "imx-pcm.h"
/* Define RX and TX to index ssi->regvals array; Can be 0 or 1 only */
#define RX 0
#define TX 1
/**
* FSLSSI_I2S_FORMATS: audio formats supported by the SSI
*

3
sound/soc/fsl/fsl_ssi.h
View file

@ -12,9 +12,6 @@
#ifndef _MPC8610_I2S_H
#define _MPC8610_I2S_H
#define RX 0
#define TX 1
/* -- SSI Register Map -- */
/* SSI Transmit Data Register 0 */