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Diffstat (limited to 'sound/soc/codecs/adau1373.c')
-rw-r--r--sound/soc/codecs/adau1373.c38
1 files changed, 10 insertions, 28 deletions
diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index fe1353a797b9..1556b360fa15 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -23,6 +23,7 @@
#include <sound/adau1373.h>
#include "adau1373.h"
+#include "adau-utils.h"
struct adau1373_dai {
unsigned int clk_src;
@@ -1254,7 +1255,8 @@ static int adau1373_set_pll(struct snd_soc_codec *codec, int pll_id,
{
struct adau1373 *adau1373 = snd_soc_codec_get_drvdata(codec);
unsigned int dpll_div = 0;
- unsigned int x, r, n, m, i, j, mode;
+ uint8_t pll_regs[5];
+ int ret;
switch (pll_id) {
case ADAU1373_PLL1:
@@ -1295,27 +1297,8 @@ static int adau1373_set_pll(struct snd_soc_codec *codec, int pll_id,
dpll_div++;
}
- if (freq_out % freq_in != 0) {
- /* fout = fin * (r + (n/m)) / x */
- x = DIV_ROUND_UP(freq_in, 13500000);
- freq_in /= x;
- r = freq_out / freq_in;
- i = freq_out % freq_in;
- j = gcd(i, freq_in);
- n = i / j;
- m = freq_in / j;
- x--;
- mode = 1;
- } else {
- /* fout = fin / r */
- r = freq_out / freq_in;
- n = 0;
- m = 0;
- x = 0;
- mode = 0;
- }
-
- if (r < 2 || r > 8 || x > 3 || m > 0xffff || n > 0xffff)
+ ret = adau_calc_pll_cfg(freq_in, freq_out, pll_regs);
+ if (ret)
return -EINVAL;
if (dpll_div) {
@@ -1330,12 +1313,11 @@ static int adau1373_set_pll(struct snd_soc_codec *codec, int pll_id,
regmap_write(adau1373->regmap, ADAU1373_DPLL_CTRL(pll_id),
(source << 4) | dpll_div);
- regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL1(pll_id), (m >> 8) & 0xff);
- regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL2(pll_id), m & 0xff);
- regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL3(pll_id), (n >> 8) & 0xff);
- regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL4(pll_id), n & 0xff);
- regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL5(pll_id),
- (r << 3) | (x << 1) | mode);
+ regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL1(pll_id), pll_regs[0]);
+ regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL2(pll_id), pll_regs[1]);
+ regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL3(pll_id), pll_regs[2]);
+ regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL4(pll_id), pll_regs[3]);
+ regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL5(pll_id), pll_regs[4]);
/* Set sysclk to pll_rate / 4 */
regmap_update_bits(adau1373->regmap, ADAU1373_CLK_SRC_DIV(pll_id), 0x3f, 0x09);