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using 24M mclk

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This commit is contained in:
Baozhu Zuo 2017-05-16 14:31:19 +08:00
parent 25b2231e81
commit a35c5a9546
2 changed files with 17 additions and 5 deletions
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22
wm8960.c
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@ -9,7 +9,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define DEBUG 1
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
@ -616,7 +616,7 @@ static int wm8960_configure_clocking(struct snd_soc_codec *codec)
if (!(iface1 & (1<<6))) {
dev_dbg(codec->dev,
"Codec is slave mode, no need to configure clock\n");
return 0;
//return 0;
}
if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) {
@ -627,6 +627,9 @@ static int wm8960_configure_clocking(struct snd_soc_codec *codec)
freq_in = wm8960->freq_in;
bclk = wm8960->bclk;
lrclk = wm8960->lrclk;
printk("clk_id %d freq_in: %d bclk: %d lrclk: %d\n",wm8960->clk_id ,freq_in, bclk,lrclk);
/*
* If it's sysclk auto mode, check if the MCLK can provide sysclk or
* not. If MCLK can provide sysclk, using MCLK to provide sysclk
@ -955,6 +958,7 @@ static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
* If it's sysclk auto mode, and the pll is enabled,
* disable the pll
*/
printk("SND_SOC_BIAS_ON");
if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
wm8960_set_pll(codec, 0, 0);
@ -1134,6 +1138,8 @@ static int wm8960_set_pll(struct snd_soc_codec *codec,
static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
int source, unsigned int freq_in, unsigned int freq_out)
{
printk("wm8960_set_dai_pll:%d %d\n",freq_in, freq_out);
struct snd_soc_codec *codec = codec_dai->codec;
struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
@ -1141,7 +1147,6 @@ static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
if (pll_id == WM8960_SYSCLK_AUTO)
return 0;
return wm8960_set_pll(codec, freq_in, freq_out);
}
@ -1151,6 +1156,8 @@ static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
struct snd_soc_codec *codec = codec_dai->codec;
u16 reg;
printk("wm8960_set_dai_clkdiv div_id: %d div: %d\n",div_id, div);
switch (div_id) {
case WM8960_SYSCLKDIV:
reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
@ -1190,9 +1197,11 @@ static int wm8960_set_bias_level(struct snd_soc_codec *codec,
static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
struct snd_soc_codec *codec = dai->codec;
struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
clk_id = WM8960_SYSCLK_PLL;
printk("wm8960_set_dai_sysclk: %d %d ",freq, clk_id);
switch (clk_id) {
case WM8960_SYSCLK_MCLK:
snd_soc_update_bits(codec, WM8960_CLOCK1,
@ -1207,7 +1216,7 @@ static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
default:
return -EINVAL;
}
wm8960->freq_in = 24000000;
wm8960->sysclk = freq;
wm8960->clk_id = clk_id;
@ -1307,7 +1316,10 @@ static int wm8960_i2c_probe(struct i2c_client *i2c,
if (wm8960 == NULL)
return -ENOMEM;
wm8960->clk_id = WM8960_SYSCLK_PLL;
wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
if (IS_ERR(wm8960->mclk)) {
if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
return -EPROBE_DEFER;

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wm8960.ko
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