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

Browse Source 
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>
This commit is contained in:
Xiaoming Sui
2019-04-15 20:38:47 +08:00
committed by Luke Go
parent c982a597ca
commit f13656ff13
1 changed files with 21 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
sound/soc/amlogic/auge/spdif.c
View File

@@ -376,19 +376,35 @@ 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;
}