From: Shunli Wang <shunli.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
To: broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Cc: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org,
srv_heupstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
garlic.tseng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
jiaxin.yu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
tzungbi-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
shunli.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
kaichieh.chuang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org
Subject: [PATCH] ASoC: Mediatek: MT8183: enable IIR filter
Date: Thu, 16 May 2019 18:15:15 +0800 [thread overview]
Message-ID: <20190516101515.4127-1-shunli.wang@mediatek.com> (raw)
This patch is to enable IIR filter when DMIC of PMIC
is enabled.
Signed-off-by: Shunli Wang <shunli.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
sound/soc/mediatek/mt8183/mt8183-dai-adda.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/sound/soc/mediatek/mt8183/mt8183-dai-adda.c b/sound/soc/mediatek/mt8183/mt8183-dai-adda.c
index 017d7d1d9148..2b758a18c2ea 100644
--- a/sound/soc/mediatek/mt8183/mt8183-dai-adda.c
+++ b/sound/soc/mediatek/mt8183/mt8183-dai-adda.c
@@ -176,9 +176,6 @@ static int mtk_adda_ul_event(struct snd_soc_dapm_widget *w,
case SND_SOC_DAPM_POST_PMD:
/* should delayed 1/fs(smallest is 8k) = 125us before afe off */
usleep_range(125, 135);
-
- /* reset dmic */
- afe_priv->mtkaif_dmic = 0;
break;
default:
break;
@@ -426,6 +423,17 @@ static int mtk_dai_adda_hw_params(struct snd_pcm_substream *substream,
ul_src_con0 |= (voice_mode << 17) & (0x7 << 17);
+ /* enable iir */
+ ul_src_con0 |= (1 << UL_IIR_ON_TMP_CTL_SFT) &
+ UL_IIR_ON_TMP_CTL_MASK_SFT;
+
+ /* 35Hz @ 48k */
+ regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_02_01, 0x00000000);
+ regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_04_03, 0x00003FB8);
+ regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_06_05, 0x3FB80000);
+ regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_08_07, 0x3FB80000);
+ regmap_write(afe->regmap, AFE_ADDA_IIR_COEF_10_09, 0x0000C048);
+
regmap_write(afe->regmap, AFE_ADDA_UL_SRC_CON0, ul_src_con0);
/* mtkaif_rxif_data_mode = 0, amic */
--
2.18.0
next reply other threads:[~2019-05-16 10:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-16 10:15 Shunli Wang [this message]
[not found] ` <20190516101515.4127-1-shunli.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2019-05-16 10:16 ` [PATCH] ASoC: Mediatek: MT8183: enable IIR filter Mark Brown
2019-05-20 7:50 ` Jiaxin Yu
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