ASoC: Merge up fixes

Merge the fixes branch up so we can apply further AMD work.

1 files changed, 19 insertions, 0 deletions

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
index 22e75c14cac4..7b17f152bbf3 100644
--- a/sound/soc/fsl/fsl_micfil.c
+++ b/sound/soc/fsl/fsl_micfil.c
@@ -376,6 +376,25 @@ static int fsl_micfil_reset(struct device *dev)
 	if (ret)
 		return ret;
 
+	/*
+	 * SRES is self-cleared bit, but REG_MICFIL_CTRL1 is defined
+	 * as non-volatile register, so SRES still remain in regmap
+	 * cache after set, that every update of REG_MICFIL_CTRL1,
+	 * software reset happens. so clear it explicitly.
+	 */
+	ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				MICFIL_CTRL1_SRES);
+	if (ret)
+		return ret;
+
+	/*
+	 * Set SRES should clear CHnF flags, But even add delay here
+	 * the CHnF may not be cleared sometimes, so clear CHnF explicitly.
+	 */
+	ret = regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, 0xFF, 0xFF);
+	if (ret)
+		return ret;
+
 	return 0;
 }