From f8517e7d836269f5fa1e1049394104417d3a7357 Mon Sep 17 00:00:00 2001 From: "B.R. Oake" Date: Sat, 6 Sep 2014 14:58:50 +0000 Subject: [PATCH] ASoC: sunxi-codec: Fix distortion on 16-bit mono Patch to remove distortion on 16-bit mono, based on the linux-sunxi-3.4 code. Signed-off-by: Hans de Goede --- sound/soc/sunxi/sunxi-codec.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/sound/soc/sunxi/sunxi-codec.c +++ b/sound/soc/sunxi/sunxi-codec.c @@ -215,9 +215,6 @@ static int sunxi_codec_prepare(struct sn regmap_update_bits(priv->regmap, SUNXI_DAC_FIFOC, 0x1 << SUNXI_DAC_FIFOC_FIR_VERSION, 0x1 << SUNXI_DAC_FIFOC_FIR_VERSION); } - /* set TX FIFO MODE - 0 works for both 16 and 24 bits */ - regmap_update_bits(priv->regmap, SUNXI_DAC_FIFOC, 0x1 << SUNXI_DAC_FIFOC_TX_FIFO_MODE, 0x0 << SUNXI_DAC_FIFOC_TX_FIFO_MODE); - /* send last sample when DAC FIFO under run */ regmap_update_bits(priv->regmap, SUNXI_DAC_FIFOC, 0x1 << SUNXI_DAC_FIFOC_SEND_LASAT, 0x0 << SUNXI_DAC_FIFOC_SEND_LASAT); } else { @@ -329,6 +326,7 @@ static int sunxi_codec_hw_params(struct regmap_update_bits(priv->regmap, SUNXI_DAC_FIFOC, 7 << SUNXI_DAC_FIFOC_DAC_FS, hwrate << SUNXI_DAC_FIFOC_DAC_FS); regmap_update_bits(priv->regmap, SUNXI_DAC_FIFOC, 1 << SUNXI_DAC_FIFOC_MONO_EN, is_mono << SUNXI_DAC_FIFOC_MONO_EN); regmap_update_bits(priv->regmap, SUNXI_DAC_FIFOC, 1 << SUNXI_DAC_FIFOC_TX_SAMPLE_BITS, is_24bit << SUNXI_DAC_FIFOC_TX_SAMPLE_BITS); + regmap_update_bits(priv->regmap, SUNXI_DAC_FIFOC, 1 << SUNXI_DAC_FIFOC_TX_FIFO_MODE, !is_24bit << SUNXI_DAC_FIFOC_TX_FIFO_MODE); if (is_24bit) priv->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; else