diff options
| author |   Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2014-03-07 16:34:18 +0000 |
|---|---|---|
| committer |   Mark Brown <broonie@linaro.org> | 2014-03-09 08:28:06 +0000 |
| commit | 87383ac5a73ff34c60d3ea483bf24cabb27fb522 (patch) | |
| tree | 8abf165155b82cd4e291b8d1d8c12190cd573c51 /sound/soc/codecs/arizona.c | |
| parent | ASoC: arizona: An OUTDIV of 1 is not valid, avoid this (diff) | |
| download | linux-dev-87383ac5a73ff34c60d3ea483bf24cabb27fb522.tar.xz linux-dev-87383ac5a73ff34c60d3ea483bf24cabb27fb522.zip | |
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>
Diffstat (limited to 'sound/soc/codecs/arizona.c')
| -rw-r--r-- | sound/soc/codecs/arizona.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index d90804686e4e..3d4408db075f 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 @@ static int arizona_calc_fll(struct arizona_fll *fll, /* 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 @@ static int arizona_calc_fll(struct arizona_fll *fll, 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; |