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ASoC: mediatek: mt8195: revise mt8195-mt6359-rt1019-rt5682.c 

Revise driver for the coming driver combination.
There are two major parts including in the patch.
1. Apply some suggested changes used in mt8195-mt6359-rt1011-rt5682.c.
2. Reorder the layout for centralizing the codec related code.

Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220324053851.27350-2-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Trevor Wu 2022-03-24 13:38:46 +08:00 коммит произвёл Mark Brown
Родитель 3123109284
Коммит 4dbc714fe0
Не найден ключ, соответствующий данной подписи
Идентификатор ключа GPG: 24D68B725D5487D0
1 изменённых файлов: 240 добавлений и 248 удалений
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488
sound/soc/mediatek/mt8195/mt8195-mt6359-rt1019-rt5682.c
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@ -14,7 +14,6 @@
#include <sound/jack.h>
#include <sound/pcm_params.h>
#include <sound/rt5682.h>
#include <sound/sof.h>
#include <sound/soc.h>
#include "../../codecs/mt6359.h"
#include "../../codecs/rt5682.h"
@ -86,51 +85,6 @@ static const struct snd_kcontrol_new mt8195_mt6359_rt1019_rt5682_controls[] = {
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static int mt8195_rt5682_etdm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
unsigned int rate = params_rate(params);
int bitwidth;
int ret;
bitwidth = snd_pcm_format_width(params_format(params));
if (bitwidth < 0) {
dev_err(card->dev, "invalid bit width: %d\n", bitwidth);
return bitwidth;
}
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x00, 0x0, 0x2, bitwidth);
if (ret) {
dev_err(card->dev, "failed to set tdm slot\n");
return ret;
}
ret = snd_soc_dai_set_pll(codec_dai, RT5682_PLL1, RT5682_PLL1_S_MCLK,
rate * 256, rate * 512);
if (ret) {
dev_err(card->dev, "failed to set pll\n");
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1,
rate * 512, SND_SOC_CLOCK_IN);
if (ret) {
dev_err(card->dev, "failed to set sysclk\n");
return ret;
}
return snd_soc_dai_set_sysclk(cpu_dai, 0, rate * 256,
SND_SOC_CLOCK_OUT);
}
static const struct snd_soc_ops mt8195_rt5682_etdm_ops = {
.hw_params = mt8195_rt5682_etdm_hw_params,
};
#define CKSYS_AUD_TOP_CFG 0x032c
#define CKSYS_AUD_TOP_MON 0x0330
@ -143,20 +97,20 @@ static int mt8195_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
struct mt8195_afe_private *afe_priv = afe->platform_priv;
struct mtkaif_param *param = &afe_priv->mtkaif_params;
int phase;
unsigned int monitor;
int mtkaif_calibration_num_phase;
int chosen_phase_1, chosen_phase_2, chosen_phase_3;
int prev_cycle_1, prev_cycle_2, prev_cycle_3;
int test_done_1, test_done_2, test_done_3;
int cycle_1, cycle_2, cycle_3;
int prev_cycle_1, prev_cycle_2, prev_cycle_3;
int chosen_phase_1, chosen_phase_2, chosen_phase_3;
int counter;
bool mtkaif_calibration_ok;
int mtkaif_chosen_phase[MT8195_MTKAIF_MISO_NUM];
int mtkaif_phase_cycle[MT8195_MTKAIF_MISO_NUM];
int mtkaif_calibration_num_phase;
bool mtkaif_calibration_ok;
unsigned int monitor;
int counter;
int phase;
int i;
dev_info(afe->dev, "%s(), start\n", __func__);
dev_dbg(afe->dev, "%s(), start\n", __func__);
param->mtkaif_calibration_ok = false;
for (i = 0; i < MT8195_MTKAIF_MISO_NUM; i++) {
@ -312,57 +266,6 @@ static int mt8195_mt6359_init(struct snd_soc_pcm_runtime *rtd)
return 0;
}
static int mt8195_rt5682_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_component *cmpnt_codec =
asoc_rtd_to_codec(rtd, 0)->component;
struct mt8195_mt6359_rt1019_rt5682_priv *priv =
snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_jack *jack = &priv->headset_jack;
struct snd_soc_component *cmpnt_afe =
snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
struct mt8195_afe_private *afe_priv = afe->platform_priv;
int ret;
priv->i2so1_mclk = afe_priv->clk[MT8195_CLK_TOP_APLL12_DIV2];
ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_BTN_0 |
SND_JACK_BTN_1 | SND_JACK_BTN_2 |
SND_JACK_BTN_3,
jack, NULL, 0);
if (ret) {
dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
return ret;
}
snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
ret = snd_soc_component_set_jack(cmpnt_codec, jack, NULL);
if (ret) {
dev_err(rtd->dev, "Headset Jack set failed: %d\n", ret);
return ret;
}
return 0;
};
static int mt8195_etdm_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
/* fix BE i2s format to S24_LE, clean param mask first */
snd_mask_reset_range(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
0, (__force unsigned int)SNDRV_PCM_FORMAT_LAST);
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}
static int mt8195_hdmitx_dptx_startup(struct snd_pcm_substream *substream)
{
static const unsigned int rates[] = {
@ -414,11 +317,8 @@ static int mt8195_dptx_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
unsigned int rate = params_rate(params);
unsigned int mclk_fs_ratio = 256;
unsigned int mclk_fs = rate * mclk_fs_ratio;
return snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_fs,
return snd_soc_dai_set_sysclk(cpu_dai, 0, params_rate(params) * 256,
SND_SOC_CLOCK_OUT);
}
@ -432,7 +332,7 @@ static int mt8195_dptx_codec_init(struct snd_soc_pcm_runtime *rtd)
snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_component *cmpnt_codec =
asoc_rtd_to_codec(rtd, 0)->component;
int ret = 0;
int ret;
ret = snd_soc_card_jack_new(rtd->card, "DP Jack", SND_JACK_LINEOUT,
&priv->dp_jack, NULL, 0);
@ -448,7 +348,7 @@ static int mt8195_hdmi_codec_init(struct snd_soc_pcm_runtime *rtd)
snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_component *cmpnt_codec =
asoc_rtd_to_codec(rtd, 0)->component;
int ret = 0;
int ret;
ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT,
&priv->hdmi_jack, NULL, 0);
@ -460,7 +360,6 @@ static int mt8195_hdmi_codec_init(struct snd_soc_pcm_runtime *rtd)
static int mt8195_dptx_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
/* fix BE i2s format to S24_LE, clean param mask first */
snd_mask_reset_range(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
@ -563,6 +462,102 @@ static const struct snd_soc_ops mt8195_capture_ops = {
.startup = mt8195_capture_startup,
};
static int mt8195_rt5682_etdm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
unsigned int rate = params_rate(params);
int bitwidth;
int ret;
bitwidth = snd_pcm_format_width(params_format(params));
if (bitwidth < 0) {
dev_err(card->dev, "invalid bit width: %d\n", bitwidth);
return bitwidth;
}
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x00, 0x0, 0x2, bitwidth);
if (ret) {
dev_err(card->dev, "failed to set tdm slot\n");
return ret;
}
ret = snd_soc_dai_set_pll(codec_dai, RT5682_PLL1, RT5682_PLL1_S_MCLK,
rate * 256, rate * 512);
if (ret) {
dev_err(card->dev, "failed to set pll\n");
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1,
rate * 512, SND_SOC_CLOCK_IN);
if (ret) {
dev_err(card->dev, "failed to set sysclk\n");
return ret;
}
return snd_soc_dai_set_sysclk(cpu_dai, 0, rate * 256,
SND_SOC_CLOCK_OUT);
}
static const struct snd_soc_ops mt8195_rt5682_etdm_ops = {
.hw_params = mt8195_rt5682_etdm_hw_params,
};
static int mt8195_rt5682_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_component *cmpnt_codec =
asoc_rtd_to_codec(rtd, 0)->component;
struct mt8195_mt6359_rt1019_rt5682_priv *priv =
snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_jack *jack = &priv->headset_jack;
struct snd_soc_component *cmpnt_afe =
snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
struct mt8195_afe_private *afe_priv = afe->platform_priv;
int ret;
priv->i2so1_mclk = afe_priv->clk[MT8195_CLK_TOP_APLL12_DIV2];
ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_BTN_0 |
SND_JACK_BTN_1 | SND_JACK_BTN_2 |
SND_JACK_BTN_3,
jack, NULL, 0);
if (ret) {
dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
return ret;
}
snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
ret = snd_soc_component_set_jack(cmpnt_codec, jack, NULL);
if (ret) {
dev_err(rtd->dev, "Headset Jack set failed: %d\n", ret);
return ret;
}
return 0;
};
static int mt8195_etdm_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
/* fix BE i2s format to S24_LE, clean param mask first */
snd_mask_reset_range(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
0, (__force unsigned int)SNDRV_PCM_FORMAT_LAST);
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}
static int mt8195_set_bias_level_post(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
{
@ -581,7 +576,6 @@ static int mt8195_set_bias_level_post(struct snd_soc_card *card,
strcmp(component->name, RT5682S_DEV0_NAME)))
return 0;
switch (level) {
case SND_SOC_BIAS_OFF:
if (!__clk_is_enabled(priv->i2so1_mclk))
@ -808,127 +802,6 @@ static const struct sof_conn_stream g_sof_conn_streams[] = {
{ "ETDM2_IN_BE", "AFE_SOF_UL5", SOF_DMA_UL5, SNDRV_PCM_STREAM_CAPTURE},
};
/* fixup the BE DAI link to match any values from topology */
static int mt8195_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_soc_card *card = rtd->card;
struct snd_soc_dai_link *sof_dai_link = NULL;
struct snd_soc_pcm_runtime *runtime;
struct snd_soc_dai *cpu_dai;
int i, j, ret = 0;
for (i = 0; i < ARRAY_SIZE(g_sof_conn_streams); i++) {
const struct sof_conn_stream *conn = &g_sof_conn_streams[i];
if (strcmp(rtd->dai_link->name, conn->normal_link))
continue;
for_each_card_rtds(card, runtime) {
if (strcmp(runtime->dai_link->name, conn->sof_link))
continue;
for_each_rtd_cpu_dais(runtime, j, cpu_dai) {
if (cpu_dai->stream_active[conn->stream_dir] > 0) {
sof_dai_link = runtime->dai_link;
break;
}
}
break;
}
if (sof_dai_link && sof_dai_link->be_hw_params_fixup)
ret = sof_dai_link->be_hw_params_fixup(runtime, params);
break;
}
if (!strcmp(rtd->dai_link->name, "ETDM2_IN_BE") ||
!strcmp(rtd->dai_link->name, "ETDM1_OUT_BE")) {
mt8195_etdm_hw_params_fixup(runtime, params);
}
return ret;
}
static int mt8195_mt6359_rt1019_rt5682_card_late_probe(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *runtime;
struct snd_soc_component *sof_comp = NULL;
int i;
/* 1. find sof component */
for_each_card_rtds(card, runtime) {
for (i = 0; i < runtime->num_components; i++) {
if (!runtime->components[i]->driver->name)
continue;
if (!strcmp(runtime->components[i]->driver->name, "sof-audio-component")) {
sof_comp = runtime->components[i];
break;
}
}
}
if (!sof_comp) {
dev_info(card->dev, " probe without component\n");
return 0;
}
/* 2. add route path and fixup callback */
for (i = 0; i < ARRAY_SIZE(g_sof_conn_streams); i++) {
const struct sof_conn_stream *conn = &g_sof_conn_streams[i];
struct snd_soc_pcm_runtime *sof_rtd = NULL;
struct snd_soc_pcm_runtime *normal_rtd = NULL;
struct snd_soc_pcm_runtime *rtd = NULL;
for_each_card_rtds(card, rtd) {
if (!strcmp(rtd->dai_link->name, conn->sof_link)) {
sof_rtd = rtd;
continue;
}
if (!strcmp(rtd->dai_link->name, conn->normal_link)) {
normal_rtd = rtd;
continue;
}
if (normal_rtd && sof_rtd)
break;
}
if (normal_rtd && sof_rtd) {
int j;
struct snd_soc_dai *cpu_dai;
for_each_rtd_cpu_dais(sof_rtd, j, cpu_dai) {
struct snd_soc_dapm_route route;
struct snd_soc_dapm_path *p = NULL;
struct snd_soc_dapm_widget *play_widget =
cpu_dai->playback_widget;
struct snd_soc_dapm_widget *cap_widget =
cpu_dai->capture_widget;
memset(&route, 0, sizeof(route));
if (conn->stream_dir == SNDRV_PCM_STREAM_CAPTURE &&
cap_widget) {
snd_soc_dapm_widget_for_each_sink_path(cap_widget, p) {
route.source = conn->sof_dma;
route.sink = p->sink->name;
snd_soc_dapm_add_routes(&card->dapm, &route, 1);
}
} else if (conn->stream_dir == SNDRV_PCM_STREAM_PLAYBACK &&
play_widget){
snd_soc_dapm_widget_for_each_source_path(play_widget, p) {
route.source = p->source->name;
route.sink = conn->sof_dma;
snd_soc_dapm_add_routes(&card->dapm, &route, 1);
}
} else {
dev_err(cpu_dai->dev, "stream dir and widget not pair\n");
}
}
normal_rtd->dai_link->be_hw_params_fixup = mt8195_dai_link_fixup;
}
}
return 0;
}
static struct snd_soc_dai_link mt8195_mt6359_rt1019_rt5682_dai_links[] = {
/* FE */
[DAI_LINK_DL2_FE] = {
@ -1248,6 +1121,127 @@ static struct snd_soc_card mt8195_mt6359_rt1019_rt5682_soc_card = {
.set_bias_level_post = mt8195_set_bias_level_post,
};
/* fixup the BE DAI link to match any values from topology */
static int mt8195_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_soc_card *card = rtd->card;
struct snd_soc_dai_link *sof_dai_link = NULL;
struct snd_soc_pcm_runtime *runtime;
struct snd_soc_dai *cpu_dai;
int i, j, ret = 0;
for (i = 0; i < ARRAY_SIZE(g_sof_conn_streams); i++) {
const struct sof_conn_stream *conn = &g_sof_conn_streams[i];
if (strcmp(rtd->dai_link->name, conn->normal_link))
continue;
for_each_card_rtds(card, runtime) {
if (strcmp(runtime->dai_link->name, conn->sof_link))
continue;
for_each_rtd_cpu_dais(runtime, j, cpu_dai) {
if (cpu_dai->stream_active[conn->stream_dir] > 0) {
sof_dai_link = runtime->dai_link;
break;
}
}
break;
}
if (sof_dai_link && sof_dai_link->be_hw_params_fixup)
ret = sof_dai_link->be_hw_params_fixup(runtime, params);
break;
}
if (!strcmp(rtd->dai_link->name, "ETDM2_IN_BE") ||
!strcmp(rtd->dai_link->name, "ETDM1_OUT_BE")) {
mt8195_etdm_hw_params_fixup(runtime, params);
}
return ret;
}
static int mt8195_mt6359_rt1019_rt5682_card_late_probe(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *runtime;
struct snd_soc_component *sof_comp = NULL;
int i;
/* 1. find sof component */
for_each_card_rtds(card, runtime) {
for (i = 0; i < runtime->num_components; i++) {
if (!runtime->components[i]->driver->name)
continue;
if (!strcmp(runtime->components[i]->driver->name, "sof-audio-component")) {
sof_comp = runtime->components[i];
break;
}
}
}
if (!sof_comp) {
dev_info(card->dev, " probe without component\n");
return 0;
}
/* 2. add route path and fixup callback */
for (i = 0; i < ARRAY_SIZE(g_sof_conn_streams); i++) {
const struct sof_conn_stream *conn = &g_sof_conn_streams[i];
struct snd_soc_pcm_runtime *sof_rtd = NULL;
struct snd_soc_pcm_runtime *normal_rtd = NULL;
struct snd_soc_pcm_runtime *rtd = NULL;
for_each_card_rtds(card, rtd) {
if (!strcmp(rtd->dai_link->name, conn->sof_link)) {
sof_rtd = rtd;
continue;
}
if (!strcmp(rtd->dai_link->name, conn->normal_link)) {
normal_rtd = rtd;
continue;
}
if (normal_rtd && sof_rtd)
break;
}
if (normal_rtd && sof_rtd) {
int j;
struct snd_soc_dai *cpu_dai;
for_each_rtd_cpu_dais(sof_rtd, j, cpu_dai) {
struct snd_soc_dapm_route route;
struct snd_soc_dapm_path *p = NULL;
struct snd_soc_dapm_widget *play_widget =
cpu_dai->playback_widget;
struct snd_soc_dapm_widget *cap_widget =
cpu_dai->capture_widget;
memset(&route, 0, sizeof(route));
if (conn->stream_dir == SNDRV_PCM_STREAM_CAPTURE &&
cap_widget) {
snd_soc_dapm_widget_for_each_sink_path(cap_widget, p) {
route.source = conn->sof_dma;
route.sink = p->sink->name;
snd_soc_dapm_add_routes(&card->dapm, &route, 1);
}
} else if (conn->stream_dir == SNDRV_PCM_STREAM_PLAYBACK &&
play_widget){
snd_soc_dapm_widget_for_each_source_path(play_widget, p) {
route.source = p->source->name;
route.sink = conn->sof_dma;
snd_soc_dapm_add_routes(&card->dapm, &route, 1);
}
} else {
dev_err(cpu_dai->dev, "stream dir and widget not pair\n");
}
}
normal_rtd->dai_link->be_hw_params_fixup = mt8195_dai_link_fixup;
}
}
return 0;
}
static int mt8195_dailink_parse_of(struct snd_soc_card *card, struct device_node *np,
const char *propname)
{
@ -1322,6 +1316,18 @@ static int mt8195_mt6359_rt1019_rt5682_dev_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
if (of_property_read_bool(pdev->dev.of_node, "mediatek,dai-link")) {
ret = mt8195_dailink_parse_of(card, pdev->dev.of_node,
"mediatek,dai-link");
if (ret) {
dev_dbg(&pdev->dev, "Parse dai-link fail\n");
return -EINVAL;
}
} else {
if (!sof_on)
card->num_links = DAI_LINK_REGULAR_NUM;
}
platform_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,platform", 0);
if (!platform_node) {
@ -1337,19 +1343,6 @@ static int mt8195_mt6359_rt1019_rt5682_dev_probe(struct platform_device *pdev)
hdmi_node = of_parse_phandle(pdev->dev.of_node,
"mediatek,hdmi-codec", 0);
if (of_property_read_bool(pdev->dev.of_node, "mediatek,dai-link")) {
ret = mt8195_dailink_parse_of(card, pdev->dev.of_node,
"mediatek,dai-link");
if (ret) {
dev_dbg(&pdev->dev, "Parse dai-link fail\n");
ret = -EINVAL;
goto put_node;
}
} else {
if (!sof_on)
card->num_links = DAI_LINK_REGULAR_NUM;
}
for_each_card_prelinks(card, i, dai_link) {
if (!dai_link->platforms->name) {
if (!strncmp(dai_link->name, "AFE_SOF", strlen("AFE_SOF")) && sof_on)
@ -1399,7 +1392,6 @@ static int mt8195_mt6359_rt1019_rt5682_dev_probe(struct platform_device *pdev)
ret = devm_snd_soc_register_card(&pdev->dev, card);
put_node:
of_node_put(platform_node);
of_node_put(adsp_node);
of_node_put(dp_node);