diff options
| author | Martin Povišer <povik+lin@cutebit.org> | 2022-08-08 17:12:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 12:38:04 +0300 |
| commit | fc57e3fde219e50687392d95101cb63bbb1afacc (patch) | |
| tree | b9f21c6553276cd4603f6665cfb607eb3c89448c /sound/soc | |
| parent | 4fe80492d53971d9a49f39f3c86d2d67c6f3638a (diff) | |
| download | linux-fc57e3fde219e50687392d95101cb63bbb1afacc.tar.xz | |
ASoC: tas2770: Set correct FSYNC polarity
commit e9ac31f0a5d0e246b046c20348954519f91a297f upstream.
Fix setting of FSYNC polarity for DAI formats other than I2S. Also
add support for polarity inversion.
Fixes: 1a476abc723e ("tas2770: add tas2770 smart PA kernel driver")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220808141246.5749-2-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/tas2770.c | 20 | ||||
| -rw-r--r-- | sound/soc/codecs/tas2770.h | 3 |
2 files changed, 22 insertions, 1 deletions
diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c index 315fd9d971c8..b6fdd22bf67e 100644 --- a/sound/soc/codecs/tas2770.c +++ b/sound/soc/codecs/tas2770.c @@ -337,7 +337,7 @@ static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) struct snd_soc_component *component = dai->component; struct tas2770_priv *tas2770 = snd_soc_component_get_drvdata(component); - u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0; + u8 tdm_rx_start_slot = 0, invert_fpol = 0, fpol_preinv = 0, asi_cfg_1 = 0; int ret; switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { @@ -349,9 +349,15 @@ static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) } switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_IF: + invert_fpol = 1; + fallthrough; case SND_SOC_DAIFMT_NB_NF: asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_RSING; break; + case SND_SOC_DAIFMT_IB_IF: + invert_fpol = 1; + fallthrough; case SND_SOC_DAIFMT_IB_NF: asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_FALING; break; @@ -369,15 +375,19 @@ static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: tdm_rx_start_slot = 1; + fpol_preinv = 0; break; case SND_SOC_DAIFMT_DSP_A: tdm_rx_start_slot = 0; + fpol_preinv = 1; break; case SND_SOC_DAIFMT_DSP_B: tdm_rx_start_slot = 1; + fpol_preinv = 1; break; case SND_SOC_DAIFMT_LEFT_J: tdm_rx_start_slot = 0; + fpol_preinv = 1; break; default: dev_err(tas2770->dev, @@ -391,6 +401,14 @@ static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) if (ret < 0) return ret; + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, + TAS2770_TDM_CFG_REG0_FPOL_MASK, + (fpol_preinv ^ invert_fpol) + ? TAS2770_TDM_CFG_REG0_FPOL_RSING + : TAS2770_TDM_CFG_REG0_FPOL_FALING); + if (ret < 0) + return ret; + return 0; } diff --git a/sound/soc/codecs/tas2770.h b/sound/soc/codecs/tas2770.h index d156666bcc55..d51e88d8c338 100644 --- a/sound/soc/codecs/tas2770.h +++ b/sound/soc/codecs/tas2770.h @@ -41,6 +41,9 @@ #define TAS2770_TDM_CFG_REG0_31_44_1_48KHZ 0x6 #define TAS2770_TDM_CFG_REG0_31_88_2_96KHZ 0x8 #define TAS2770_TDM_CFG_REG0_31_176_4_192KHZ 0xa +#define TAS2770_TDM_CFG_REG0_FPOL_MASK BIT(0) +#define TAS2770_TDM_CFG_REG0_FPOL_RSING 0 +#define TAS2770_TDM_CFG_REG0_FPOL_FALING 1 /* TDM Configuration Reg1 */ #define TAS2770_TDM_CFG_REG1 TAS2770_REG(0X0, 0x0B) #define TAS2770_TDM_CFG_REG1_MASK GENMASK(5, 1) |