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| author |   Jiaxin Yu <jiaxin.yu@mediatek.com> | 2019-09-27 18:31:57 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2019-10-08 13:39:45 +0100 |
| commit | 9e985503ee4b23d576c303a17dfe52cfc8f32727 (patch) | |
| tree | 8022e05fe2233c43dd815cf98cbce7a246d5552b | |
| parent | dt-bindings: medaitek: mt8183: add property "resets" && "reset-names" (diff) | |
| download | linux-dev-9e985503ee4b23d576c303a17dfe52cfc8f32727.tar.xz linux-dev-9e985503ee4b23d576c303a17dfe52cfc8f32727.zip | |
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 <jiaxin.yu@mediatek.com>
Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Link: https://lore.kernel.org/r/1569580317-21181-5-git-send-email-jiaxin.yu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/mediatek/mt8183/mt8183-afe-pcm.c | 15 |
1 files changed, 15 insertions, 0 deletions
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 <linux/of.h> #include <linux/of_address.h> #include <linux/pm_runtime.h> +#include <linux/reset.h> #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); |