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audio: enable hw resmaple pause thd [1/1]

Browse Source 
PD#TV-4638

Problem:
Speaker output high frequency howling
after change from pattern 615 to pattern 1 on chroma22294.
The hw resampler keeps sending noise if it has no input.

Solution:
Enable the hw resample pause thd by default.

Verify:
TL1 X301.

Change-Id: Ib6f0924025e155eaa8ba0e3681b307f7ff56b449
Signed-off-by: Shuai Li <shuai.li@amlogic.com>
This commit is contained in:
Shuai Li
2019-04-22 10:52:18 +08:00
parent c8a016d786
commit 7b0ef35d93
3 changed files with 20 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
sound/soc/amlogic/auge/resample.c
View File

@@ -271,18 +271,19 @@ int resample_set(enum resample_idx id, enum samplerate_index index)
struct audioresample *p_resample = get_audioresample(id);
int ret = 0;
if (!p_resample)
return 0;
pr_info("%s resample_%c to %s, last %s\n",
__func__,
(id == RESAMPLE_A) ? 'a' : 'b',
auge_resample_texts[index],
auge_resample_texts[p_resample->asrc_rate_idx]);
if (!p_resample)
#if 0
if (index == p_resample->asrc_rate_idx)
return 0;
//if (index == p_resample->asrc_rate_idx)
// return 0;
#endif
p_resample->asrc_rate_idx = index;
resample_rate = resample_idx2rate(index);
@@ -443,7 +444,7 @@ static const struct snd_kcontrol_new asrc_a_controls[] = {
mixer_audiobus_read, mixer_audiobus_write,
NULL),
SOC_SINGLE_EXT_TLV("Hw resample pause thd",
EE_AUDIO_RESAMPLEA_CTRL2, 0, 0xffffff, 0,
EE_AUDIO_RESAMPLEA_CTRL2, 11, 0x1fff, 0,
mixer_audiobus_read, mixer_audiobus_write,
NULL),
SOC_ENUM_EXT("Hw resample module",
@@ -462,7 +463,7 @@ static const struct snd_kcontrol_new asrc_b_controls[] = {
mixer_audiobus_read, mixer_audiobus_write,
NULL),
SOC_SINGLE_EXT_TLV("Hw resample b pause thd",
EE_AUDIO_RESAMPLEB_CTRL2, 0, 0xffffff, 0,
EE_AUDIO_RESAMPLEB_CTRL2, 11, 0x1fff, 0,
mixer_audiobus_read, mixer_audiobus_write,
NULL),
SOC_ENUM_EXT("Hw resample b module",

11
sound/soc/amlogic/auge/resample_hw.c
View File

@@ -115,6 +115,7 @@ int resample_set_hw_param(enum resample_idx id,
reg = EE_AUDIO_RESAMPLEA_CTRL2 + offset * id;
audiobus_update_bits(reg,
1 << 25, 1 << 25);
resample_set_hw_pause_thd(id, 128);
return 0;
}
@@ -160,3 +161,13 @@ void resample_ctrl_write(enum resample_idx id, int value)
audiobus_write(reg, value);
}
int resample_set_hw_pause_thd(enum resample_idx id, unsigned int thd)
{
int offset = EE_AUDIO_RESAMPLEB_CTRL2 - EE_AUDIO_RESAMPLEA_CTRL2;
int reg = EE_AUDIO_RESAMPLEA_CTRL2 + offset * id;
audiobus_write(reg, 1 << 24 | thd << 11);
return 0;
}

1
sound/soc/amlogic/auge/resample_hw.h
View File

@@ -41,5 +41,6 @@ extern void resample_format_set(enum resample_idx id, int ch_num, int bits);
extern int resample_ctrl_read(enum resample_idx id);
extern void resample_ctrl_write(enum resample_idx id, int value);
int resample_set_hw_pause_thd(enum resample_idx id, unsigned int thd);
#endif