ASoC: fsl_sai: Constify rate constraints

The rate constraints in this driver are shared between all device
instances. It should not be (and is not) modified at runtime, so make them
const.

While we are at it also change the type of the rates array from u32 to
unsigned int. While both resolve to the same type, u32 is usually used to
empathize that the value is for a 32-bit hardware register or similar which
makes it slightly confusing in this context.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 9366b5a42e1defb9f9d274d142ef9d1fef25104c..2150f5aaba7a4cc554d99fbe7f7e9109e79e33c2 100644 (file)
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -27,13 +27,13 @@
 #define FSL_SAI_FLAGS (FSL_SAI_CSR_SEIE |\
                       FSL_SAI_CSR_FEIE)
 
-static u32 fsl_sai_rates[] = {
+static const unsigned int fsl_sai_rates[] = {
        8000, 11025, 12000, 16000, 22050,
        24000, 32000, 44100, 48000, 64000,
        88200, 96000, 176400, 192000
 };
 
-static struct snd_pcm_hw_constraint_list fsl_sai_rate_constraints = {
+static const struct snd_pcm_hw_constraint_list fsl_sai_rate_constraints = {
        .count = ARRAY_SIZE(fsl_sai_rates),
        .list = fsl_sai_rates,
 };