On Fri, 2019-09-27 at 18:31 +0800, Jiaxin Yu wrote:
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
This one looks good to me. You could add this if you want
Reviewed-by: Yingjoe Chen yingjoe.chen@mediatek.com
Joe.C
sound/soc/mediatek/mt8183/mt8183-afe-pcm.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
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);