avsync: spdif: fix the avsync for ms12 [1/4]

PD#SWPL-5837

Problem:
dtv is out of avsync when dolby ms12 certificate

Solution:
when the audio is played, recalculate the apts to sync
pcrsrc when pcrmaster.

Verify:
X301

Change-Id: I199383aa1c0de1b4f0ec646d9d066910b3bb2b42
Signed-off-by: Xiaoming Sui <xiaoming.sui@amlogic.com>

diff --git a/sound/soc/amlogic/auge/spdif.c b/sound/soc/amlogic/auge/spdif.c
index 3a51ab0..520c982 100644 (file)
--- a/sound/soc/amlogic/auge/spdif.c
+++ b/sound/soc/amlogic/auge/spdif.c
@@ -338,19 +338,35 @@ static int spdif_clk_set(struct snd_kcontrol *kcontrol,
 {
        struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
        struct aml_spdif *p_spdif = snd_soc_dai_get_drvdata(cpu_dai);
+       unsigned int mpll_freq = 0;
+       int ret;
 
        int sysclk = p_spdif->sysclk_freq;
        int value = ucontrol->value.enumerated.item[0];
-
        if (value > 2000000 || value < 0) {
                pr_err("Fine spdif sysclk setting range(0~2000000), %d\n",
                                value);
                return 0;
        }
-       sysclk += (value - 1000000);
-
-       aml_dai_set_spdif_sysclk(cpu_dai, 0, sysclk, 0);
-
+       value = value - 1000000;
+       sysclk += value;
+       /* pr_info("spdif_set %d to %d,diff %d\n",
+        * p_spdif->sysclk_freq,sysclk,value);
+        */
+       mpll_freq = sysclk * 4;
+       p_spdif->sysclk_freq = sysclk;
+       clk_set_rate(p_spdif->sysclk, mpll_freq);
+       clk_set_rate(p_spdif->clk_spdifout, p_spdif->sysclk_freq);
+       ret = clk_prepare_enable(p_spdif->sysclk);
+       if (ret) {
+               pr_err("Can't enable pcm sysclk clock: %d\n", ret);
+               return 0;
+       }
+       ret = clk_prepare_enable(p_spdif->clk_spdifout);
+       if (ret) {
+               pr_err("Can't enable clk_spdifout clock: %d\n", ret);
+               return 0;
+       }
        return 0;
 }