ASoC: arizona: Add defines for FLL configuration constants
Improve readability by adding defines for some of the constants
associated with FLL configuration.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index d908046..3d4408d 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -53,6 +53,12 @@
#define ARIZONA_AIF_RX_ENABLES 0x1A
#define ARIZONA_AIF_FORCE_WRITE 0x1B
+#define ARIZONA_FLL_MAX_FREF 13500000
+#define ARIZONA_FLL_MIN_FVCO 90000000
+#define ARIZONA_FLL_MAX_REFDIV 8
+#define ARIZONA_FLL_MIN_OUTDIV 2
+#define ARIZONA_FLL_MAX_OUTDIV 7
+
#define arizona_fll_err(_fll, fmt, ...) \
dev_err(_fll->arizona->dev, "FLL%d: " fmt, _fll->id, ##__VA_ARGS__)
#define arizona_fll_warn(_fll, fmt, ...) \
@@ -1390,11 +1396,11 @@
/* Fref must be <=13.5MHz */
div = 1;
cfg->refdiv = 0;
- while ((Fref / div) > 13500000) {
+ while ((Fref / div) > ARIZONA_FLL_MAX_FREF) {
div *= 2;
cfg->refdiv++;
- if (div > 8) {
+ if (div > ARIZONA_FLL_MAX_REFDIV) {
arizona_fll_err(fll,
"Can't scale %dMHz in to <=13.5MHz\n",
Fref);
@@ -1406,10 +1412,10 @@
Fref /= div;
/* Fvco should be over the targt; don't check the upper bound */
- div = 2;
- while (Fout * div < 90000000 * fll->vco_mult) {
+ div = ARIZONA_FLL_MIN_OUTDIV;
+ while (Fout * div < ARIZONA_FLL_MIN_FVCO * fll->vco_mult) {
div++;
- if (div > 7) {
+ if (div > ARIZONA_FLL_MAX_OUTDIV) {
arizona_fll_err(fll, "No FLL_OUTDIV for Fout=%uHz\n",
Fout);
return -EINVAL;