Add DAPM calls to enable/disable the Class D amp. Also add a DAPM call to turn off the PLL upon the stream completing.

Signed-off-by: Dan Murphy dmurphy@ti.com ---

v2 - Added proper audio routing map for ClassD and PLL enable/disable - https://patchwork.kernel.org/patch/4586831/

sound/soc/codecs/tas2552.c | 68 +++++++++++++++++++++++++++++++------------- 1 file changed, 48 insertions(+), 20 deletions(-)

diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c index 23b3296..1ed57a7 100644 --- a/sound/soc/codecs/tas2552.c +++ b/sound/soc/codecs/tas2552.c @@ -78,6 +78,43 @@ struct tas2552_data { unsigned int mclk; };

+/* Input mux controls */ +static const char *tas2552_input_texts[] = { + "Digital", "Analog" +}; + +static SOC_ENUM_SINGLE_DECL(tas2552_input_mux_enum, TAS2552_CFG_3, 7, + tas2552_input_texts); + +static const struct snd_kcontrol_new tas2552_input_mux_control[] = { + SOC_DAPM_ENUM("Input selection", tas2552_input_mux_enum) +}; + +static const struct snd_soc_dapm_widget tas2552_dapm_widgets[] = +{ + SND_SOC_DAPM_INPUT("IN"), + + /* MUX Controls */ + SND_SOC_DAPM_MUX("Input selection", SND_SOC_NOPM, 0, 0, + tas2552_input_mux_control), + + SND_SOC_DAPM_AIF_IN("DAC IN", "DAC Playback", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_OUT_DRV("ClassD", TAS2552_CFG_2, 7, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL", TAS2552_CFG_2, 3, 0, NULL, 0), + + SND_SOC_DAPM_OUTPUT("OUT") +}; + +static const struct snd_soc_dapm_route tas2552_audio_map[] = { + {"DAC", NULL, "DAC IN"}, + {"Input selection", "Digital", "DAC"}, + {"Input selection", "Analog", "IN"}, + {"ClassD", NULL, "Input selection"}, + {"OUT", NULL, "ClassD"}, + {"ClassD", NULL, "PLL"}, +}; + static void tas2552_sw_shutdown(struct tas2552_data *tas_data, int sw_shutdown) { u8 cfg1_reg; @@ -101,10 +138,6 @@ static int tas2552_hw_params(struct snd_pcm_substream *substream, int d; u8 p, j;

- /* Turn on Class D amplifier */ - snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_CLASSD_EN_MASK, - TAS2552_CLASSD_EN); - if (!tas2552->mclk) return -EINVAL;

@@ -147,9 +180,6 @@ static int tas2552_hw_params(struct snd_pcm_substream *substream,

}

- snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, - TAS2552_PLL_ENABLE); - return 0; }

@@ -269,19 +299,10 @@ static const struct dev_pm_ops tas2552_pm = { NULL) };

-static void tas2552_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_codec *codec = dai->codec; - - snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0); -} - static struct snd_soc_dai_ops tas2552_speaker_dai_ops = { .hw_params = tas2552_hw_params, .set_sysclk = tas2552_set_dai_sysclk, .set_fmt = tas2552_set_dai_fmt, - .shutdown = tas2552_shutdown, .digital_mute = tas2552_mute, };

@@ -294,7 +315,7 @@ static struct snd_soc_dai_driver tas2552_dai[] = { { .name = "tas2552-amplifier", .playback = { - .stream_name = "Speaker", + .stream_name = "Playback", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_192000, @@ -312,6 +333,7 @@ static DECLARE_TLV_DB_SCALE(dac_tlv, -7, 100, 24); static const struct snd_kcontrol_new tas2552_snd_controls[] = { SOC_SINGLE_TLV("Speaker Driver Playback Volume", TAS2552_PGA_GAIN, 0, 0x1f, 1, dac_tlv), + SOC_DAPM_SINGLE("Playback AMP", SND_SOC_NOPM, 0, 1, 0), };

static const struct reg_default tas2552_init_regs[] = { @@ -321,6 +343,7 @@ static const struct reg_default tas2552_init_regs[] = { static int tas2552_codec_probe(struct snd_soc_codec *codec) { struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_dapm_context *dapm = &codec->dapm; int ret;

tas2552->codec = codec; @@ -362,9 +385,14 @@ static int tas2552_codec_probe(struct snd_soc_codec *codec) goto patch_fail; }

- snd_soc_write(codec, TAS2552_CFG_2, TAS2552_CLASSD_EN | - TAS2552_BOOST_EN | TAS2552_APT_EN | - TAS2552_LIM_EN); + snd_soc_write(codec, TAS2552_CFG_2, TAS2552_BOOST_EN | + TAS2552_APT_EN | TAS2552_LIM_EN); + + snd_soc_dapm_new_controls(dapm, tas2552_dapm_widgets, + ARRAY_SIZE(tas2552_dapm_widgets)); + snd_soc_dapm_add_routes(dapm, tas2552_audio_map, + ARRAY_SIZE(tas2552_audio_map)); + return 0;

patch_fail: