From 1fb34b48361eac63850513a045ed2eb9a7fd6168 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Mon, 30 Nov 2015 16:37:47 +0100 Subject: [PATCH 1/6] ASoC: sun4i: Implement MIC1 capture One of the input path used in the Allwinner codec is the MIC1. Add support for it. Signed-off-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/sun4i-codec.c | 228 +++++++++++++++++++++++++++++----- 1 file changed, 197 insertions(+), 31 deletions(-) diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c index bcbf4da168b6..30c9e9260491 100644 --- a/sound/soc/sunxi/sun4i-codec.c +++ b/sound/soc/sunxi/sun4i-codec.c @@ -69,6 +69,7 @@ /* Codec ADC register offsets and bit fields */ #define SUN4I_CODEC_ADC_FIFOC (0x1c) +#define SUN4I_CODEC_ADC_FIFOC_ADC_FS (29) #define SUN4I_CODEC_ADC_FIFOC_EN_AD (28) #define SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE (24) #define SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL (8) @@ -102,6 +103,7 @@ struct sun4i_codec { struct clk *clk_apb; struct clk *clk_module; + struct snd_dmaengine_dai_dma_data capture_dma_data; struct snd_dmaengine_dai_dma_data playback_dma_data; }; @@ -136,26 +138,54 @@ static void sun4i_codec_stop_playback(struct sun4i_codec *scodec) 0); } +static void sun4i_codec_start_capture(struct sun4i_codec *scodec) +{ + /* + * FIXME: according to the BSP, we might need to drive a PA + * GPIO high here on some boards + */ + + /* Enable ADC DRQ */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), + BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN)); +} + +static void sun4i_codec_stop_capture(struct sun4i_codec *scodec) +{ + /* + * FIXME: according to the BSP, we might need to drive a PA + * GPIO low here on some boards + */ + + /* Disable ADC DRQ */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), 0); +} + static int sun4i_codec_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card); - if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) - return -ENOTSUPP; - switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - sun4i_codec_start_playback(scodec); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + sun4i_codec_start_playback(scodec); + else + sun4i_codec_start_capture(scodec); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - sun4i_codec_stop_playback(scodec); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + sun4i_codec_stop_playback(scodec); + else + sun4i_codec_stop_capture(scodec); break; default: @@ -165,16 +195,55 @@ static int sun4i_codec_trigger(struct snd_pcm_substream *substream, int cmd, return 0; } -static int sun4i_codec_prepare(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) +static int sun4i_codec_prepare_capture(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card); + + + /* Flush RX FIFO */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH), + BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH)); + + + /* Set RX FIFO trigger level */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + 0xf << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL, + 0x7 << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL); + + /* + * FIXME: Undocumented in the datasheet, but + * Allwinner's code mentions that it is related + * related to microphone gain + */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_ACTL, + 0x3 << 25, + 0x1 << 25); + + if (of_device_is_compatible(scodec->dev->of_node, + "allwinner,sun7i-a20-codec")) + /* FIXME: Undocumented bits */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_TUNE, + 0x3 << 8, + 0x1 << 8); + + /* Fill most significant bits with valid data MSB */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE), + BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE)); + + return 0; +} + +static int sun4i_codec_prepare_playback(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card); u32 val; - if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) - return -ENOTSUPP; - /* Flush the TX FIFO */ regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC, BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH), @@ -202,6 +271,15 @@ static int sun4i_codec_prepare(struct snd_pcm_substream *substream, 0); return 0; +}; + +static int sun4i_codec_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + return sun4i_codec_prepare_playback(substream, dai); + + return sun4i_codec_prepare_capture(substream, dai); } static unsigned long sun4i_codec_get_mod_freq(struct snd_pcm_hw_params *params) @@ -276,30 +354,34 @@ static int sun4i_codec_get_hw_rate(struct snd_pcm_hw_params *params) } } -static int sun4i_codec_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) +static int sun4i_codec_hw_params_capture(struct sun4i_codec *scodec, + struct snd_pcm_hw_params *params, + unsigned int hwrate) { - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card); - unsigned long clk_freq; - int ret, hwrate; u32 val; - if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) - return -ENOTSUPP; + /* Set ADC sample rate */ + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + 7 << SUN4I_CODEC_ADC_FIFOC_ADC_FS, + hwrate << SUN4I_CODEC_ADC_FIFOC_ADC_FS); - clk_freq = sun4i_codec_get_mod_freq(params); - if (!clk_freq) - return -EINVAL; + /* Set the number of channels we want to use */ + if (params_channels(params) == 1) + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN), + BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN)); + else + regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, + BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN), 0); - ret = clk_set_rate(scodec->clk_module, clk_freq); - if (ret) - return ret; + return 0; +} - hwrate = sun4i_codec_get_hw_rate(params); - if (hwrate < 0) - return hwrate; +static int sun4i_codec_hw_params_playback(struct sun4i_codec *scodec, + struct snd_pcm_hw_params *params, + unsigned int hwrate) +{ + u32 val; /* Set DAC sample rate */ regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC, @@ -344,6 +426,34 @@ static int sun4i_codec_hw_params(struct snd_pcm_substream *substream, return 0; } +static int sun4i_codec_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card); + unsigned long clk_freq; + int hwrate; + + clk_freq = sun4i_codec_get_mod_freq(params); + if (!clk_freq) + return -EINVAL; + + if (clk_set_rate(scodec->clk_module, clk_freq)) + return -EINVAL; + + hwrate = sun4i_codec_get_hw_rate(params); + if (hwrate < 0) + return hwrate; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + return sun4i_codec_hw_params_playback(scodec, params, + hwrate); + + return sun4i_codec_hw_params_capture(scodec, params, + hwrate); +} + static int sun4i_codec_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -394,6 +504,20 @@ static struct snd_soc_dai_driver sun4i_codec_dai = { SNDRV_PCM_FMTBIT_S32_LE, .sig_bits = 24, }, + .capture = { + .stream_name = "Codec Capture", + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 192000, + .rates = SNDRV_PCM_RATE_8000_48000 | + SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_192000 | + SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .sig_bits = 24, + }, }; /*** Codec ***/ @@ -429,11 +553,22 @@ static const struct snd_kcontrol_new sun4i_codec_pa_mixer_controls[] = { }; static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = { + /* Digital parts of the ADCs */ + SND_SOC_DAPM_SUPPLY("ADC", SUN4I_CODEC_ADC_FIFOC, + SUN4I_CODEC_ADC_FIFOC_EN_AD, 0, + NULL, 0), + /* Digital parts of the DACs */ SND_SOC_DAPM_SUPPLY("DAC", SUN4I_CODEC_DAC_DPC, SUN4I_CODEC_DAC_DPC_EN_DA, 0, NULL, 0), + /* Analog parts of the ADCs */ + SND_SOC_DAPM_ADC("Left ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL, + SUN4I_CODEC_ADC_ACTL_ADC_L_EN, 0), + SND_SOC_DAPM_ADC("Right ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL, + SUN4I_CODEC_ADC_ACTL_ADC_R_EN, 0), + /* Analog parts of the DACs */ SND_SOC_DAPM_DAC("Left DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL, SUN4I_CODEC_DAC_ACTL_DACAENL, 0), @@ -452,6 +587,14 @@ static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = { SND_SOC_DAPM_SUPPLY("Mixer Enable", SUN4I_CODEC_DAC_ACTL, SUN4I_CODEC_DAC_ACTL_MIXEN, 0, NULL, 0), + /* VMIC */ + SND_SOC_DAPM_SUPPLY("VMIC", SUN4I_CODEC_ADC_ACTL, + SUN4I_CODEC_ADC_ACTL_VMICEN, 0, NULL, 0), + + /* Mic Pre-Amplifiers */ + SND_SOC_DAPM_PGA("MIC1 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL, + SUN4I_CODEC_ADC_ACTL_PREG1EN, 0, NULL, 0), + /* Pre-Amplifier */ SND_SOC_DAPM_MIXER("Pre-Amplifier", SUN4I_CODEC_ADC_ACTL, SUN4I_CODEC_ADC_ACTL_PA_EN, 0, @@ -460,15 +603,19 @@ static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = { SND_SOC_DAPM_SWITCH("Pre-Amplifier Mute", SND_SOC_NOPM, 0, 0, &sun4i_codec_pa_mute), + SND_SOC_DAPM_INPUT("Mic1"), + SND_SOC_DAPM_OUTPUT("HP Right"), SND_SOC_DAPM_OUTPUT("HP Left"), }; static const struct snd_soc_dapm_route sun4i_codec_dapm_routes[] = { - /* Left DAC Routes */ + /* Left ADC / DAC Routes */ + { "Left ADC", NULL, "ADC" }, { "Left DAC", NULL, "DAC" }, - /* Right DAC Routes */ + /* Right ADC / DAC Routes */ + { "Right ADC", NULL, "ADC" }, { "Right DAC", NULL, "DAC" }, /* Right Mixer Routes */ @@ -490,6 +637,12 @@ static const struct snd_soc_dapm_route sun4i_codec_dapm_routes[] = { { "Pre-Amplifier Mute", "Switch", "Pre-Amplifier" }, { "HP Right", NULL, "Pre-Amplifier Mute" }, { "HP Left", NULL, "Pre-Amplifier Mute" }, + + /* Mic1 Routes */ + { "Left ADC", NULL, "MIC1 Pre-Amplifier" }, + { "Right ADC", NULL, "MIC1 Pre-Amplifier" }, + { "MIC1 Pre-Amplifier", NULL, "Mic1"}, + { "Mic1", NULL, "VMIC" }, }; static struct snd_soc_codec_driver sun4i_codec_codec = { @@ -515,7 +668,7 @@ static int sun4i_codec_dai_probe(struct snd_soc_dai *dai) struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card); snd_soc_dai_init_dma_data(dai, &scodec->playback_dma_data, - NULL); + &scodec->capture_dma_data); return 0; } @@ -531,6 +684,14 @@ static struct snd_soc_dai_driver dummy_cpu_dai = { .formats = SUN4I_CODEC_FORMATS, .sig_bits = 24, }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = SUN4I_CODEC_RATES, + .formats = SUN4I_CODEC_FORMATS, + .sig_bits = 24, + }, }; static const struct regmap_config sun4i_codec_regmap_config = { @@ -638,6 +799,11 @@ static int sun4i_codec_probe(struct platform_device *pdev) scodec->playback_dma_data.maxburst = 4; scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + /* DMA configuration for RX FIFO */ + scodec->capture_dma_data.addr = res->start + SUN4I_CODEC_ADC_RXDATA; + scodec->capture_dma_data.maxburst = 4; + scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + ret = snd_soc_register_codec(&pdev->dev, &sun4i_codec_codec, &sun4i_codec_dai, 1); if (ret) { From 0837d8780c766bffe1fc5a5da54fb2620923a6d0 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Tue, 1 Dec 2015 12:06:46 +0100 Subject: [PATCH 2/6] ASoC: sunxi: Remove useless comments and variable The comment is misleading on how we should support external power amps, and the variable is not used and generates a warning. Signed-off-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/sun4i-codec.c | 22 ---------------------- 1 file changed, 22 deletions(-) diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c index 30c9e9260491..516c7c2b479a 100644 --- a/sound/soc/sunxi/sun4i-codec.c +++ b/sound/soc/sunxi/sun4i-codec.c @@ -109,11 +109,6 @@ struct sun4i_codec { static void sun4i_codec_start_playback(struct sun4i_codec *scodec) { - /* - * FIXME: according to the BSP, we might need to drive a PA - * GPIO high here on some boards - */ - /* Flush TX FIFO */ regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC, BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH), @@ -127,11 +122,6 @@ static void sun4i_codec_start_playback(struct sun4i_codec *scodec) static void sun4i_codec_stop_playback(struct sun4i_codec *scodec) { - /* - * FIXME: according to the BSP, we might need to drive a PA - * GPIO low here on some boards - */ - /* Disable DAC DRQ */ regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC, BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN), @@ -140,11 +130,6 @@ static void sun4i_codec_stop_playback(struct sun4i_codec *scodec) static void sun4i_codec_start_capture(struct sun4i_codec *scodec) { - /* - * FIXME: according to the BSP, we might need to drive a PA - * GPIO high here on some boards - */ - /* Enable ADC DRQ */ regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), @@ -153,11 +138,6 @@ static void sun4i_codec_start_capture(struct sun4i_codec *scodec) static void sun4i_codec_stop_capture(struct sun4i_codec *scodec) { - /* - * FIXME: according to the BSP, we might need to drive a PA - * GPIO low here on some boards - */ - /* Disable ADC DRQ */ regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), 0); @@ -358,8 +338,6 @@ static int sun4i_codec_hw_params_capture(struct sun4i_codec *scodec, struct snd_pcm_hw_params *params, unsigned int hwrate) { - u32 val; - /* Set ADC sample rate */ regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_FIFOC, 7 << SUN4I_CODEC_ADC_FIFOC_ADC_FS, From 8400ddf4ac4907323c7704fe57e4d138d04ae3b3 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Tue, 1 Dec 2015 12:06:47 +0100 Subject: [PATCH 3/6] ASoC: sun4i-codec: pass through clk_set_rate error Commit 1fb34b48361e ('ASoC: sun4i: Implement MIC1 capture') added back some code that disregards the clk_set_rate error code and always returns -EINVAL. Fix that and return the code in order to have more clue about what's going on. Signed-off-by: Maxime Ripard Signed-off-by: Mark Brown --- sound/soc/sunxi/sun4i-codec.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c index 516c7c2b479a..0dc11f547937 100644 --- a/sound/soc/sunxi/sun4i-codec.c +++ b/sound/soc/sunxi/sun4i-codec.c @@ -411,14 +411,15 @@ static int sun4i_codec_hw_params(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = substream->private_data; struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card); unsigned long clk_freq; - int hwrate; + int ret, hwrate; clk_freq = sun4i_codec_get_mod_freq(params); if (!clk_freq) return -EINVAL; - if (clk_set_rate(scodec->clk_module, clk_freq)) - return -EINVAL; + ret = clk_set_rate(scodec->clk_module, clk_freq); + if (ret) + return ret; hwrate = sun4i_codec_get_hw_rate(params); if (hwrate < 0) From e6415b485059af183873e907662a3cdeefacb58b Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 11 Dec 2015 19:43:56 +0100 Subject: [PATCH 4/6] ASoC: sun4i-codec: Rename codec dapm widgets and routes Rename the codec dapm widgets and routes with a _codec prefix. This is a preparation patch for adding card dapm widgets and routes. Signed-off-by: Hans de Goede Signed-off-by: Mark Brown --- sound/soc/sunxi/sun4i-codec.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c index 7a3fe1dca178..519ccb3444e8 100644 --- a/sound/soc/sunxi/sun4i-codec.c +++ b/sound/soc/sunxi/sun4i-codec.c @@ -532,7 +532,7 @@ static const struct snd_kcontrol_new sun4i_codec_pa_mixer_controls[] = { SUN4I_CODEC_DAC_ACTL_MIXPAS, 1, 0), }; -static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = { +static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = { /* Digital parts of the ADCs */ SND_SOC_DAPM_SUPPLY("ADC", SUN4I_CODEC_ADC_FIFOC, SUN4I_CODEC_ADC_FIFOC_EN_AD, 0, @@ -589,7 +589,7 @@ static const struct snd_soc_dapm_widget sun4i_codec_dapm_widgets[] = { SND_SOC_DAPM_OUTPUT("HP Left"), }; -static const struct snd_soc_dapm_route sun4i_codec_dapm_routes[] = { +static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = { /* Left ADC / DAC Routes */ { "Left ADC", NULL, "ADC" }, { "Left DAC", NULL, "DAC" }, @@ -628,10 +628,10 @@ static const struct snd_soc_dapm_route sun4i_codec_dapm_routes[] = { static struct snd_soc_codec_driver sun4i_codec_codec = { .controls = sun4i_codec_widgets, .num_controls = ARRAY_SIZE(sun4i_codec_widgets), - .dapm_widgets = sun4i_codec_dapm_widgets, - .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_dapm_widgets), - .dapm_routes = sun4i_codec_dapm_routes, - .num_dapm_routes = ARRAY_SIZE(sun4i_codec_dapm_routes), + .dapm_widgets = sun4i_codec_codec_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets), + .dapm_routes = sun4i_codec_codec_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes), }; static const struct snd_soc_component_driver sun4i_codec_component = { From 405926276bfb316915c16e57a3943eb2cf4dd8fa Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 11 Dec 2015 19:43:57 +0100 Subject: [PATCH 5/6] ASoC: sun4i-codec: Add support for PA gpio pin Add support for PA gpio pin for controlling an external amplifier as used on some Allwinner boards. Signed-off-by: Hans de Goede Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/sun4i-codec.txt | 3 ++ sound/soc/sunxi/sun4i-codec.c | 35 +++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt index c92966bd5488..0dce690f78f5 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt @@ -14,6 +14,9 @@ Required properties: - "apb": the parent APB clock for this controller - "codec": the parent module clock +Optional properties: +- allwinner,pa-gpios: gpio to enable external amplifier + Example: codec: codec@01c22c00 { #sound-dai-cells = <0>; diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c index 519ccb3444e8..e6cc6a14718a 100644 --- a/sound/soc/sunxi/sun4i-codec.c +++ b/sound/soc/sunxi/sun4i-codec.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include @@ -103,6 +104,7 @@ struct sun4i_codec { struct regmap *regmap; struct clk *clk_apb; struct clk *clk_module; + struct gpio_desc *gpio_pa; struct snd_dmaengine_dai_dma_data capture_dma_data; struct snd_dmaengine_dai_dma_data playback_dma_data; @@ -709,6 +711,26 @@ static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev, return link; }; +static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct sun4i_codec *scodec = snd_soc_card_get_drvdata(w->dapm->card); + + if (scodec->gpio_pa) + gpiod_set_value_cansleep(scodec->gpio_pa, + !!SND_SOC_DAPM_EVENT_ON(event)); + + return 0; +} + +static const struct snd_soc_dapm_widget sun4i_codec_card_dapm_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event), +}; + +static const struct snd_soc_dapm_route sun4i_codec_card_dapm_routes[] = { + { "Speaker", NULL, "Power Amplifier" }, +}; + static struct snd_soc_card *sun4i_codec_create_card(struct device *dev) { struct snd_soc_card *card; @@ -723,6 +745,10 @@ static struct snd_soc_card *sun4i_codec_create_card(struct device *dev) card->dev = dev; card->name = "sun4i-codec"; + card->dapm_widgets = sun4i_codec_card_dapm_widgets; + card->num_dapm_widgets = ARRAY_SIZE(sun4i_codec_card_dapm_widgets); + card->dapm_routes = sun4i_codec_card_dapm_routes; + card->num_dapm_routes = ARRAY_SIZE(sun4i_codec_card_dapm_routes); return card; }; @@ -774,6 +800,15 @@ static int sun4i_codec_probe(struct platform_device *pdev) return -EINVAL; } + scodec->gpio_pa = devm_gpiod_get_optional(&pdev->dev, "allwinner,pa", + GPIOD_OUT_LOW); + if (IS_ERR(scodec->gpio_pa)) { + ret = PTR_ERR(scodec->gpio_pa); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "Failed to get pa gpio: %d\n", ret); + return ret; + } + /* DMA configuration for TX FIFO */ scodec->playback_dma_data.addr = res->start + SUN4I_CODEC_DAC_TXDATA; scodec->playback_dma_data.maxburst = 4; From 6b803c611c66debd6fc454c9ed049822994a5885 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 22 Dec 2015 23:00:17 +0100 Subject: [PATCH 6/6] ASoC: sun4i-codec: Use proper output for external amp routes An external amp (if any) is connected to the external outputs of the SoC of course, rather then directly to the internal amp. Signed-off-by: Hans de Goede Signed-off-by: Mark Brown --- sound/soc/sunxi/sun4i-codec.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c index e6cc6a14718a..44f170c73b06 100644 --- a/sound/soc/sunxi/sun4i-codec.c +++ b/sound/soc/sunxi/sun4i-codec.c @@ -728,7 +728,8 @@ static const struct snd_soc_dapm_widget sun4i_codec_card_dapm_widgets[] = { }; static const struct snd_soc_dapm_route sun4i_codec_card_dapm_routes[] = { - { "Speaker", NULL, "Power Amplifier" }, + { "Speaker", NULL, "HP Right" }, + { "Speaker", NULL, "HP Left" }, }; static struct snd_soc_card *sun4i_codec_create_card(struct device *dev)