From d0b2f91bede3bd5e3d24dd6803e56eee959c1797 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Thu, 20 Oct 2016 00:10:27 -0300 Subject: Linux-libre 4.8.2-gnu --- sound/soc/codecs/adau1373.c | 38 ++++++++++---------------------------- 1 file changed, 10 insertions(+), 28 deletions(-) (limited to 'sound/soc/codecs/adau1373.c') diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c index fe1353a79..1556b360f 100644 --- a/sound/soc/codecs/adau1373.c +++ b/sound/soc/codecs/adau1373.c @@ -23,6 +23,7 @@ #include #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); -- cgit v1.2.3-54-g00ecf