diff options
| author | PC Liao <pc.liao@mediatek.com> | 2016-02-23 16:20:24 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-02-26 11:11:22 +0900 |
| commit | 4d7cb66c8f9db37ffa2a72cc9b9233ae82e94d7e (patch) | |
| tree | d9c48c3ae199c98c9782ad56f9faa91be3a8c3c7 /sound | |
| parent | 0f83f9296d5c91d08cf46cf1ba8a17fb870dedf0 (diff) | |
ASoC: mediatek: remove soft reset and add second I2S clock
To improve I2S flow, this patch removes soft reset and adds second
I2S clock to use.
Signed-off-by: PC Liao <pc.liao@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/mediatek/mtk-afe-pcm.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/sound/soc/mediatek/mtk-afe-pcm.c b/sound/soc/mediatek/mtk-afe-pcm.c index 689c51f23d9f..3456bfab4617 100644 --- a/sound/soc/mediatek/mtk-afe-pcm.c +++ b/sound/soc/mediatek/mtk-afe-pcm.c @@ -283,20 +283,13 @@ static void mtk_afe_set_i2s_enable(struct mtk_afe *afe, bool enable) regmap_read(afe->regmap, AFE_I2S_CON2, &val); if (!!(val & AFE_I2S_CON2_EN) == enable) - return; /* must skip soft reset */ - - /* I2S soft reset begin */ - regmap_update_bits(afe->regmap, AUDIO_TOP_CON1, 0x4, 0x4); + return; /* input */ regmap_update_bits(afe->regmap, AFE_I2S_CON2, 0x1, enable); /* output */ regmap_update_bits(afe->regmap, AFE_I2S_CON1, 0x1, enable); - - /* I2S soft reset end */ - udelay(1); - regmap_update_bits(afe->regmap, AUDIO_TOP_CON1, 0x4, 0); } static int mtk_afe_dais_enable_clks(struct mtk_afe *afe, @@ -365,6 +358,7 @@ static int mtk_afe_i2s_startup(struct snd_pcm_substream *substream, return 0; mtk_afe_dais_enable_clks(afe, afe->clocks[MTK_CLK_I2S1_M], NULL); + mtk_afe_dais_enable_clks(afe, afe->clocks[MTK_CLK_I2S2_M], NULL); regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M, 0); return 0; @@ -384,6 +378,7 @@ static void mtk_afe_i2s_shutdown(struct snd_pcm_substream *substream, AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M, AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M); mtk_afe_dais_disable_clks(afe, afe->clocks[MTK_CLK_I2S1_M], NULL); + mtk_afe_dais_disable_clks(afe, afe->clocks[MTK_CLK_I2S2_M], NULL); } static int mtk_afe_i2s_prepare(struct snd_pcm_substream *substream, @@ -397,6 +392,9 @@ static int mtk_afe_i2s_prepare(struct snd_pcm_substream *substream, mtk_afe_dais_set_clks(afe, afe->clocks[MTK_CLK_I2S1_M], runtime->rate * 256, NULL, 0); + mtk_afe_dais_set_clks(afe, + afe->clocks[MTK_CLK_I2S2_M], runtime->rate * 256, + NULL, 0); /* config I2S */ ret = mtk_afe_set_i2s(afe, substream->runtime->rate); if (ret) |