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| author | Richard Fitzgerald <rf@opensource.wolfsonmicro.com> | 2015-11-03 14:24:12 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-03 19:07:07 +0000 |
| commit | 341604ad839d10314af51669fd454dc0aa2ef288 (patch) | |
| tree | e790cf9364e314e6028ab92268085bac848df855 /sound | |
| parent | 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff) | |
| download | linux-stable-341604ad839d10314af51669fd454dc0aa2ef288.tar.gz linux-stable-341604ad839d10314af51669fd454dc0aa2ef288.tar.bz2 linux-stable-341604ad839d10314af51669fd454dc0aa2ef288.zip | |
ASoC: arizona: fix range of OPCLK_REF
The code was able to generate illegal OPCLK_REF values because the
reference frequency tables listed all values of SYSCLK instead of
valid values for OPCLK_REF clock. The maximum OPCLK_REF clock is
49.152MHz or 45.1584MHz.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/arizona.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 8a2221ab3d10..586789597ecd 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -979,24 +979,18 @@ void arizona_init_dvfs(struct arizona_priv *priv) } EXPORT_SYMBOL_GPL(arizona_init_dvfs); -static unsigned int arizona_sysclk_48k_rates[] = { +static unsigned int arizona_opclk_ref_48k_rates[] = { 6144000, 12288000, 24576000, 49152000, - 73728000, - 98304000, - 147456000, }; -static unsigned int arizona_sysclk_44k1_rates[] = { +static unsigned int arizona_opclk_ref_44k1_rates[] = { 5644800, 11289600, 22579200, 45158400, - 67737600, - 90316800, - 135475200, }; static int arizona_set_opclk(struct snd_soc_codec *codec, unsigned int clk, @@ -1021,11 +1015,11 @@ static int arizona_set_opclk(struct snd_soc_codec *codec, unsigned int clk, } if (refclk % 8000) - rates = arizona_sysclk_44k1_rates; + rates = arizona_opclk_ref_44k1_rates; else - rates = arizona_sysclk_48k_rates; + rates = arizona_opclk_ref_48k_rates; - for (ref = 0; ref < ARRAY_SIZE(arizona_sysclk_48k_rates) && + for (ref = 0; ref < ARRAY_SIZE(arizona_opclk_ref_48k_rates) && rates[ref] <= refclk; ref++) { div = 1; while (rates[ref] / div >= freq && div < 32) { |