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 --- sound/soc/fsl/fsl_ssi.c | 4 ++++ sound/soc/fsl/fsl_ssi.h | 3 --- 2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index aecd00f..001e453 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -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 * diff --git a/sound/soc/fsl/fsl_ssi.h b/sound/soc/fsl/fsl_ssi.h index de2fdc5..18f8dd5 100644 --- a/sound/soc/fsl/fsl_ssi.h +++ b/sound/soc/fsl/fsl_ssi.h @@ -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 */