[PATCH] ASoC: mediatek: mt8195: Remove afe-dai component and rework codec link

From: AngeloGioacchino Del Regno
Date: Wed Jan 10 2024 - 05:58:28 EST


Remove the extra 'mt8195-afe-pcm-dai' component, register the DAI
drivers to the main AFE component, and rework the DAI linking between
the headset codec (RT5682/RT5682S) and the TDM interface in the probe
function to stop assigning name, relying on the of_node of the codec.
Also replace the COMP_DUMMY codec entry with a COMP_EMPTY for the
ETDM2_IN and remove it entirely from ETDM1_OUT to fix the registration
flow for this sound card.

While at it, since we also need to swap the codec init function from
ETDM2_IN to ETDM1_OUT, remove the static assignment of both `ops` and
`init` for both, as we now assign these dynamically during probe.

Fixes: 13f58267cda3 ("ASoC: soc.h: don't create dummy Component via COMP_DUMMY()")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---

This was tested on the MT8195 Cherry Tomato Chromebook w/Pipewire:
audio works again with both internal speakers and 3.5mm jack.
As a (mostly personal) note, this driver's probe function should get
refactored at some point to rely on snd_soc_of_parse_audio_routing()
instead; I plan to do that as soon as I can (bandwidth permitting...!)

sound/soc/mediatek/mt8195/mt8195-afe-pcm.c | 33 +----------------
sound/soc/mediatek/mt8195/mt8195-mt6359.c | 41 +++++++++++++++-------
2 files changed, 29 insertions(+), 45 deletions(-)

diff --git a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
index 1e33863c85ca..620d7ade1992 100644
--- a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
+++ b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
@@ -1795,10 +1795,6 @@ static const struct snd_kcontrol_new mt8195_memif_controls[] = {
MT8195_AFE_IRQ_28),
};

-static const struct snd_soc_component_driver mt8195_afe_pcm_dai_component = {
- .name = "mt8195-afe-pcm-dai",
-};
-
static const struct mtk_base_memif_data memif_data[MT8195_AFE_MEMIF_NUM] = {
[MT8195_AFE_MEMIF_DL2] = {
.name = "DL2",
@@ -3037,7 +3033,6 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct reset_control *rstc;
int i, irq_id, ret;
- struct snd_soc_component *component;

ret = of_reserved_mem_device_init(dev);
if (ret)
@@ -3170,36 +3165,12 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev)

/* register component */
ret = devm_snd_soc_register_component(dev, &mt8195_afe_component,
- NULL, 0);
+ afe->dai_drivers, afe->num_dai_drivers);
if (ret) {
dev_warn(dev, "err_platform\n");
goto err_pm_put;
}

- component = devm_kzalloc(dev, sizeof(*component), GFP_KERNEL);
- if (!component) {
- ret = -ENOMEM;
- goto err_pm_put;
- }
-
- ret = snd_soc_component_initialize(component,
- &mt8195_afe_pcm_dai_component,
- dev);
- if (ret)
- goto err_pm_put;
-
-#ifdef CONFIG_DEBUG_FS
- component->debugfs_prefix = "pcm";
-#endif
-
- ret = snd_soc_add_component(component,
- afe->dai_drivers,
- afe->num_dai_drivers);
- if (ret) {
- dev_warn(dev, "err_dai_component\n");
- goto err_pm_put;
- }
-
ret = regmap_multi_reg_write(afe->regmap, mt8195_afe_reg_defaults,
ARRAY_SIZE(mt8195_afe_reg_defaults));
if (ret)
@@ -3224,8 +3195,6 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev)

static void mt8195_afe_pcm_dev_remove(struct platform_device *pdev)
{
- snd_soc_unregister_component(&pdev->dev);
-
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
mt8195_afe_runtime_suspend(&pdev->dev);
diff --git a/sound/soc/mediatek/mt8195/mt8195-mt6359.c b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
index 4feb9fb76967..53fd8a897b9d 100644
--- a/sound/soc/mediatek/mt8195/mt8195-mt6359.c
+++ b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
@@ -934,12 +934,11 @@ SND_SOC_DAILINK_DEFS(ETDM1_IN_BE,

SND_SOC_DAILINK_DEFS(ETDM2_IN_BE,
DAILINK_COMP_ARRAY(COMP_CPU("ETDM2_IN")),
- DAILINK_COMP_ARRAY(COMP_DUMMY()),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));

SND_SOC_DAILINK_DEFS(ETDM1_OUT_BE,
DAILINK_COMP_ARRAY(COMP_CPU("ETDM1_OUT")),
- DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));

SND_SOC_DAILINK_DEFS(ETDM2_OUT_BE,
@@ -1237,8 +1236,6 @@ static struct snd_soc_dai_link mt8195_mt6359_dai_links[] = {
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.dpcm_capture = 1,
- .init = mt8195_rt5682_init,
- .ops = &mt8195_rt5682_etdm_ops,
.be_hw_params_fixup = mt8195_etdm_hw_params_fixup,
SND_SOC_DAILINK_REG(ETDM2_IN_BE),
},
@@ -1249,7 +1246,6 @@ static struct snd_soc_dai_link mt8195_mt6359_dai_links[] = {
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.dpcm_playback = 1,
- .ops = &mt8195_rt5682_etdm_ops,
.be_hw_params_fixup = mt8195_etdm_hw_params_fixup,
SND_SOC_DAILINK_REG(ETDM1_OUT_BE),
},
@@ -1381,7 +1377,7 @@ static int mt8195_mt6359_dev_probe(struct platform_device *pdev)
struct snd_soc_dai_link *dai_link;
struct mtk_soc_card_data *soc_card_data;
struct mt8195_mt6359_priv *mach_priv;
- struct device_node *platform_node, *adsp_node, *dp_node, *hdmi_node;
+ struct device_node *platform_node, *adsp_node, *codec_node, *dp_node, *hdmi_node;
struct mt8195_card_data *card_data;
int is5682s = 0;
int init6359 = 0;
@@ -1401,8 +1397,12 @@ static int mt8195_mt6359_dev_probe(struct platform_device *pdev)
if (!card->name)
card->name = card_data->name;

- if (strstr(card->name, "_5682s"))
+ if (strstr(card->name, "_5682s")) {
+ codec_node = of_find_compatible_node(NULL, NULL, "realtek,rt5682s");
is5682s = 1;
+ } else
+ codec_node = of_find_compatible_node(NULL, NULL, "realtek,rt5682i");
+
soc_card_data = devm_kzalloc(&pdev->dev, sizeof(*card_data), GFP_KERNEL);
if (!soc_card_data)
return -ENOMEM;
@@ -1488,12 +1488,27 @@ static int mt8195_mt6359_dev_probe(struct platform_device *pdev)
dai_link->codecs->dai_name = "i2s-hifi";
dai_link->init = mt8195_hdmi_codec_init;
}
- } else if (strcmp(dai_link->name, "ETDM1_OUT_BE") == 0 ||
- strcmp(dai_link->name, "ETDM2_IN_BE") == 0) {
- dai_link->codecs->name =
- is5682s ? RT5682S_DEV0_NAME : RT5682_DEV0_NAME;
- dai_link->codecs->dai_name =
- is5682s ? RT5682S_CODEC_DAI : RT5682_CODEC_DAI;
+ } else if (strcmp(dai_link->name, "ETDM1_OUT_BE") == 0) {
+ if (!codec_node) {
+ dev_err(&pdev->dev, "Codec not found!\n");
+ } else {
+ dai_link->codecs->of_node = codec_node;
+ dai_link->codecs->name = NULL;
+ dai_link->codecs->dai_name =
+ is5682s ? RT5682S_CODEC_DAI : RT5682_CODEC_DAI;
+ dai_link->init = mt8195_rt5682_init;
+ dai_link->ops = &mt8195_rt5682_etdm_ops;
+ }
+ } else if (strcmp(dai_link->name, "ETDM2_IN_BE") == 0) {
+ if (!codec_node) {
+ dev_err(&pdev->dev, "Codec not found!\n");
+ } else {
+ dai_link->codecs->of_node = codec_node;
+ dai_link->codecs->name = NULL;
+ dai_link->codecs->dai_name =
+ is5682s ? RT5682S_CODEC_DAI : RT5682_CODEC_DAI;
+ dai_link->ops = &mt8195_rt5682_etdm_ops;
+ }
} else if (strcmp(dai_link->name, "DL_SRC_BE") == 0 ||
strcmp(dai_link->name, "UL_SRC1_BE") == 0 ||
strcmp(dai_link->name, "UL_SRC2_BE") == 0) {
--
2.43.0