On Tue, Dec 23, 2014 at 1:08 AM, Jianqun Xu <jay.xu@xxxxxxxxxxxxxx> wrote: > Set Transmit Data Level(TDL) and Receive Data Level(RDL) to 16 bits. > Without this setting, the TDL is default to be 0x00 (means 1 bit), > and the RDL is default to be 0x1f (means 16 bits). My impression from the TRM was that TDL and RDL were measured in samples. Are you sure it's 'bits'? > > This patch is helpful to fix pop sound, tested on rk3288 board. > > Signed-off-by: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx> > --- > sound/soc/rockchip/rockchip_i2s.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c > index c74ba37..1cd7efc 100644 > --- a/sound/soc/rockchip/rockchip_i2s.c > +++ b/sound/soc/rockchip/rockchip_i2s.c > @@ -247,6 +247,10 @@ static int rockchip_i2s_hw_params(struct snd_pcm_substream *substream, > > regmap_update_bits(i2s->regmap, I2S_TXCR, I2S_TXCR_VDW_MASK, val); > regmap_update_bits(i2s->regmap, I2S_RXCR, I2S_RXCR_VDW_MASK, val); > + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_TDL_MASK, > + I2S_DMACR_TDL(16)); > + regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK, > + I2S_DMACR_RDL(16)); > > return 0; > } > -- > 1.9.1 > > > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
