From 9e985503ee4b23d576c303a17dfe52cfc8f32727 Mon Sep 17 00:00:00 2001 From: Jiaxin Yu Date: Fri, 27 Sep 2019 18:31:57 +0800 Subject: ASoC: mt8183: fix audio playback slowly after playback during bootup Before regmap_reinit_cache we must reset audio regs as default values. So we use reset controller unit(toprgu) to reset audio hw. Signed-off-by: Jiaxin Yu Reviewed-by: Yingjoe Chen Link: https://lore.kernel.org/r/1569580317-21181-5-git-send-email-jiaxin.yu@mediatek.com Signed-off-by: Mark Brown --- sound/soc/mediatek/mt8183/mt8183-afe-pcm.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'sound/soc/mediatek') diff --git a/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c b/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c index 4a31106d3471..721632386a50 100644 --- a/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c +++ b/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "mt8183-afe-common.h" #include "mt8183-afe-clk.h" @@ -1089,6 +1090,7 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) struct mtk_base_afe *afe; struct mt8183_afe_private *afe_priv; struct device *dev; + struct reset_control *rstc; int i, irq_id, ret; afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL); @@ -1126,6 +1128,19 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) return ret; } + rstc = devm_reset_control_get(dev, "audiosys"); + if (IS_ERR(rstc)) { + ret = PTR_ERR(rstc); + dev_err(dev, "could not get audiosys reset:%d\n", ret); + return ret; + } + + ret = reset_control_reset(rstc); + if (ret) { + dev_err(dev, "failed to trigger audio reset:%d\n", ret); + return ret; + } + /* enable clock for regcache get default value from hw */ afe_priv->pm_runtime_bypass_reg_ctl = true; pm_runtime_get_sync(&pdev->dev); -- cgit v1.2.3