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author | Takashi Iwai <tiwai@suse.de> | 2022-05-23 16:03:04 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2022-05-23 16:03:04 +0200 |
commit | 0163717ed5dec4fc3aaf937baa9f66f21ca11c1d (patch) | |
tree | b0618a944385d1d35bd829c9aa09eddb5c9633fa /sound/soc/codecs/adau1761.c | |
parent | 1693e265e0a5dbe11fba21b48272dd15dbb71ec0 (diff) | |
parent | e5cd20e0d6713138444cc3f3f982712cf9a36143 (diff) | |
download | linux-0163717ed5dec4fc3aaf937baa9f66f21ca11c1d.tar.gz linux-0163717ed5dec4fc3aaf937baa9f66f21ca11c1d.tar.bz2 linux-0163717ed5dec4fc3aaf937baa9f66f21ca11c1d.zip |
Merge tag 'asoc-v5.19' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.19
This is quite a big update, partly due to the addition of some larger
drivers (more of which is to follow since at least the AVS driver is
still a work in progress) and partly due to Charles' work sorting out
our handling of endianness. As has been the case recently it's much
more about drivers than the core.
- Overhaul of endianness specification for data formats, avoiding
needless restrictions due to CODECs.
- Initial stages of Intel AVS driver merge.
- Introduction of v4 IPC mechanism for SOF.
- TDM mode support for AK4613.
- Support for Analog Devices ADAU1361, Cirrus Logic CS35L45, Maxim
MAX98396, MediaTek MT8186, NXP i.MX8 micfil and SAI interfaces,
nVidia Tegra186 ASRC, and Texas Instruments TAS2764 and TAS2780
Diffstat (limited to 'sound/soc/codecs/adau1761.c')
-rw-r--r-- | sound/soc/codecs/adau1761.c | 86 |
1 files changed, 82 insertions, 4 deletions
diff --git a/sound/soc/codecs/adau1761.c b/sound/soc/codecs/adau1761.c index fb006fc81653..8f887227981f 100644 --- a/sound/soc/codecs/adau1761.c +++ b/sound/soc/codecs/adau1761.c @@ -556,8 +556,6 @@ static const struct snd_soc_dapm_route adau1761_dapm_routes[] = { { "Left DAC", NULL, "Interpolator Resync Clock" }, { "Right DAC", NULL, "Interpolator Resync Clock" }, - { "DSP", NULL, "Digital Clock 0" }, - { "Slew Clock", NULL, "Digital Clock 0" }, { "Right Playback Mixer", NULL, "Slew Clock" }, { "Left Playback Mixer", NULL, "Slew Clock" }, @@ -569,6 +567,56 @@ static const struct snd_soc_dapm_route adau1761_dapm_routes[] = { { "Digital Clock 1", NULL, "SYSCLK" }, }; +static const struct snd_soc_dapm_route adau1761_dapm_dsp_routes[] = { + { "DSP", NULL, "Digital Clock 0" }, +}; + +static int adau1761_compatibility_probe(struct device *dev) +{ + struct adau *adau = dev_get_drvdata(dev); + struct regmap *regmap = adau->regmap; + int val, ret = 0; + + /* Only consider compatibility mode when ADAU1361 was specified. */ + if (adau->type != ADAU1361) + return 0; + + regcache_cache_bypass(regmap, true); + + /* + * This will enable the core clock and bypass the PLL, + * so that we can access the registers for probing purposes + * (without having to set up the PLL). + */ + regmap_write(regmap, ADAU17X1_CLOCK_CONTROL, + ADAU17X1_CLOCK_CONTROL_SYSCLK_EN); + + /* + * ADAU17X1_SERIAL_SAMPLING_RATE doesn't exist in non-DSP chips; + * reading it results in zero at all times, and write is a no-op. + * Use this register to probe for ADAU1761. + */ + regmap_write(regmap, ADAU17X1_SERIAL_SAMPLING_RATE, 1); + ret = regmap_read(regmap, ADAU17X1_SERIAL_SAMPLING_RATE, &val); + if (ret) + goto exit; + if (val != 1) + goto exit; + regmap_write(regmap, ADAU17X1_SERIAL_SAMPLING_RATE, 0); + ret = regmap_read(regmap, ADAU17X1_SERIAL_SAMPLING_RATE, &val); + if (ret) + goto exit; + if (val != 0) + goto exit; + + adau->type = ADAU1761_AS_1361; +exit: + /* Disable core clock after probing. */ + regmap_write(regmap, ADAU17X1_CLOCK_CONTROL, 0); + regcache_cache_bypass(regmap, false); + return ret; +} + static int adau1761_set_bias_level(struct snd_soc_component *component, enum snd_soc_bias_level level) { @@ -823,7 +871,11 @@ static int adau1761_component_probe(struct snd_soc_component *component) if (ret) return ret; - if (adau->type == ADAU1761) { + /* + * If we've got an ADAU1761, or an ADAU1761 operating as an + * ADAU1361, we need these non-DSP related DAPM widgets and routes. + */ + if (adau->type == ADAU1761 || adau->type == ADAU1761_AS_1361) { ret = snd_soc_dapm_new_controls(dapm, adau1761_dapm_widgets, ARRAY_SIZE(adau1761_dapm_widgets)); if (ret) @@ -834,7 +886,29 @@ static int adau1761_component_probe(struct snd_soc_component *component) if (ret) return ret; } - + /* + * These routes are DSP related and only used when we have a + * bona fide ADAU1761. + */ + if (adau->type == ADAU1761) { + ret = snd_soc_dapm_add_routes(dapm, adau1761_dapm_dsp_routes, + ARRAY_SIZE(adau1761_dapm_dsp_routes)); + if (ret) + return ret; + } + /* + * In the ADAU1761, by default, the AIF is routed to the DSP, whereas + * for the ADAU1361, the AIF is permanently routed to the ADC and DAC. + * Thus, if we have an ADAU1761 masquerading as an ADAU1361, + * we need to explicitly route the AIF to the ADC and DAC. + * For the ADAU1761, this is normally done by set_tdm_slot, but this + * function is not necessarily called during stream setup, so set up + * the compatible AIF routings here from the start. + */ + if (adau->type == ADAU1761_AS_1361) { + regmap_write(adau->regmap, ADAU17X1_SERIAL_INPUT_ROUTE, 0x01); + regmap_write(adau->regmap, ADAU17X1_SERIAL_OUTPUT_ROUTE, 0x01); + } ret = adau17x1_add_routes(component); if (ret < 0) return ret; @@ -919,6 +993,10 @@ int adau1761_probe(struct device *dev, struct regmap *regmap, if (ret) return ret; + ret = adau1761_compatibility_probe(dev); + if (ret) + return ret; + /* Enable cache only mode as we could miss writes before bias level * reaches standby and the core clock is enabled */ regcache_cache_only(regmap, true); |