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Diffstat (limited to 'sound/soc/codecs/rk817_codec.c')
-rw-r--r--sound/soc/codecs/rk817_codec.c539
1 files changed, 539 insertions, 0 deletions
diff --git a/sound/soc/codecs/rk817_codec.c b/sound/soc/codecs/rk817_codec.c
new file mode 100644
index 000000000000..17e672b85ee5
--- /dev/null
+++ b/sound/soc/codecs/rk817_codec.c
@@ -0,0 +1,539 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// rk817 ALSA SoC Audio driver
+//
+// Copyright (c) 2018, Fuzhou Rockchip Electronics Co., Ltd All rights reserved.
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/mfd/rk808.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+struct rk817_codec_priv {
+ struct snd_soc_component *component;
+ struct rk808 *rk808;
+ struct clk *mclk;
+ unsigned int stereo_sysclk;
+ bool mic_in_differential;
+};
+
+/*
+ * This sets the codec up with the values defined in the default implementation including the APLL
+ * from the Rockchip vendor kernel. I do not know if these values are universal despite differing
+ * from the default values defined above and taken from the datasheet, or implementation specific.
+ * I don't have another implementation to compare from the Rockchip sources. Hard-coding for now.
+ * Additionally, I do not know according to the documentation the units accepted for the clock
+ * values, so for the moment those are left unvalidated.
+ */
+
+static int rk817_init(struct snd_soc_component *component)
+{
+ struct rk817_codec_priv *rk817 = snd_soc_component_get_drvdata(component);
+
+ snd_soc_component_write(component, RK817_CODEC_DDAC_POPD_DACST, 0x02);
+ snd_soc_component_write(component, RK817_CODEC_DDAC_SR_LMT0, 0x02);
+ snd_soc_component_write(component, RK817_CODEC_DADC_SR_ACL0, 0x02);
+ snd_soc_component_write(component, RK817_CODEC_DTOP_VUCTIME, 0xf4);
+ if (rk817->mic_in_differential) {
+ snd_soc_component_update_bits(component, RK817_CODEC_AMIC_CFG0, MIC_DIFF_MASK,
+ MIC_DIFF_EN);
+ };
+ return 0;
+}
+
+static int rk817_set_component_pll(struct snd_soc_component *component,
+ int pll_id, int source, unsigned int freq_in,
+ unsigned int freq_out)
+{
+ /* Set resistor value and charge pump current for PLL. */
+ snd_soc_component_write(component, RK817_CODEC_APLL_CFG1, 0x58);
+ /* Set the PLL feedback clock divide value (values not documented). */
+ snd_soc_component_write(component, RK817_CODEC_APLL_CFG2, 0x2d);
+ /* Set the PLL pre-divide value (values not documented). */
+ snd_soc_component_write(component, RK817_CODEC_APLL_CFG3, 0x0c);
+ /* Set the PLL VCO output clock divide and PLL divided ratio of PLL High Clk (values not
+ * documented).
+ */
+ snd_soc_component_write(component, RK817_CODEC_APLL_CFG4, 0xa5);
+
+ return 0;
+}
+
+/*
+ * DDAC/DADC L/R volume setting
+ * 0db~-95db, 0.375db/step, for example:
+ * 0x00: 0dB
+ * 0xff: -95dB
+ */
+
+static const DECLARE_TLV_DB_MINMAX(rk817_vol_tlv, -9500, 0);
+
+/*
+ * PGA GAIN L/R volume setting
+ * 27db~-18db, 3db/step, for example:
+ * 0x0: -18dB
+ * 0xf: 27dB
+ */
+
+static const DECLARE_TLV_DB_MINMAX(rk817_gain_tlv, -1800, 2700);
+
+static const struct snd_kcontrol_new rk817_volume_controls[] = {
+ SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume", RK817_CODEC_DDAC_VOLL,
+ RK817_CODEC_DDAC_VOLR, 0, 0x00, 0xff, 1, rk817_vol_tlv),
+ SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume", RK817_CODEC_DADC_VOLL,
+ RK817_CODEC_DADC_VOLR, 0, 0x00, 0xff, 1, rk817_vol_tlv),
+ SOC_DOUBLE_TLV("Mic Capture Gain", RK817_CODEC_DMIC_PGA_GAIN, 4, 0, 0xf, 0,
+ rk817_gain_tlv),
+};
+
+/* Since the speaker output and L headphone pin are internally the same, make audio path mutually
+ * exclusive with a mux.
+ */
+
+static const char *dac_mux_text[] = {
+ "HP",
+ "SPK",
+};
+
+static SOC_ENUM_SINGLE_VIRT_DECL(dac_enum, dac_mux_text);
+
+static const struct snd_kcontrol_new dac_mux =
+ SOC_DAPM_ENUM("Playback Mux", dac_enum);
+
+static const struct snd_soc_dapm_widget rk817_dapm_widgets[] = {
+
+ /* capture/playback common */
+ SND_SOC_DAPM_SUPPLY("LDO Regulator", RK817_CODEC_AREF_RTCFG1, 6, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("IBIAS Block", RK817_CODEC_AREF_RTCFG1, 2, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("VAvg Buffer", RK817_CODEC_AREF_RTCFG1, 1, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("PLL Power", RK817_CODEC_APLL_CFG5, 0, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("I2S TX1 Transfer Start", RK817_CODEC_DI2S_RXCMD_TSD, 5, 0, NULL, 0),
+
+ /* capture path common */
+ SND_SOC_DAPM_SUPPLY("ADC Clock", RK817_CODEC_DTOP_DIGEN_CLKE, 7, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("I2S TX Clock", RK817_CODEC_DTOP_DIGEN_CLKE, 6, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("ADC Channel Enable", RK817_CODEC_DTOP_DIGEN_CLKE, 5, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("I2S TX Channel Enable", RK817_CODEC_DTOP_DIGEN_CLKE, 4, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("MIC Power On", RK817_CODEC_AMIC_CFG0, 6, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("I2S TX3 Transfer Start", RK817_CODEC_DI2S_TXCR3_TXCMD, 7, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("I2S TX3 Right Justified", RK817_CODEC_DI2S_TXCR3_TXCMD, 3, 0, NULL, 0),
+
+ /* capture path L */
+ SND_SOC_DAPM_ADC("ADC L", "Capture", RK817_CODEC_AADC_CFG0, 7, 1),
+ SND_SOC_DAPM_SUPPLY("PGA L Power On", RK817_CODEC_AMIC_CFG0, 5, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Mic Boost L1", RK817_CODEC_AMIC_CFG0, 3, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Mic Boost L2", RK817_CODEC_AMIC_CFG0, 2, 0, NULL, 0),
+
+ /* capture path R */
+ SND_SOC_DAPM_ADC("ADC R", "Capture", RK817_CODEC_AADC_CFG0, 6, 1),
+ SND_SOC_DAPM_SUPPLY("PGA R Power On", RK817_CODEC_AMIC_CFG0, 4, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Mic Boost R1", RK817_CODEC_AMIC_CFG0, 3, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Mic Boost R2", RK817_CODEC_AMIC_CFG0, 3, 0, NULL, 0),
+
+ /* playback path common */
+ SND_SOC_DAPM_SUPPLY("DAC Clock", RK817_CODEC_DTOP_DIGEN_CLKE, 3, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("I2S RX Clock", RK817_CODEC_DTOP_DIGEN_CLKE, 2, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("DAC Channel Enable", RK817_CODEC_DTOP_DIGEN_CLKE, 1, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("I2S RX Channel Enable", RK817_CODEC_DTOP_DIGEN_CLKE, 0, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("DAC Bias", RK817_CODEC_ADAC_CFG1, 3, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("DAC Mute Off", RK817_CODEC_DDAC_MUTE_MIXCTL, 0, 1, NULL, 0),
+
+ /* playback path speaker */
+ SND_SOC_DAPM_SUPPLY("Class D Mode", RK817_CODEC_DDAC_MUTE_MIXCTL, 4, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("High Pass Filter", RK817_CODEC_DDAC_MUTE_MIXCTL, 7, 0, NULL, 0),
+ SND_SOC_DAPM_DAC("SPK DAC", "Playback", RK817_CODEC_ADAC_CFG1, 2, 1),
+ SND_SOC_DAPM_SUPPLY("Enable Class D", RK817_CODEC_ACLASSD_CFG1, 7, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Disable Class D Mute Ramp", RK817_CODEC_ACLASSD_CFG1, 6, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Class D Mute Rate 1", RK817_CODEC_ACLASSD_CFG1, 3, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Class D Mute Rate 2", RK817_CODEC_ACLASSD_CFG1, 2, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Class D OCPP 2", RK817_CODEC_ACLASSD_CFG2, 5, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Class D OCPP 3", RK817_CODEC_ACLASSD_CFG2, 4, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Class D OCPN 2", RK817_CODEC_ACLASSD_CFG2, 1, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Class D OCPN 3", RK817_CODEC_ACLASSD_CFG2, 0, 0, NULL, 0),
+
+ /* playback path headphones */
+ SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", RK817_CODEC_AHP_CP, 4, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Headphone CP Discharge LDO", RK817_CODEC_AHP_CP, 3, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Headphone OStage", RK817_CODEC_AHP_CFG0, 6, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Headphone Pre Amp", RK817_CODEC_AHP_CFG0, 5, 1, NULL, 0),
+ SND_SOC_DAPM_DAC("DAC L", "Playback", RK817_CODEC_ADAC_CFG1, 1, 1),
+ SND_SOC_DAPM_DAC("DAC R", "Playback", RK817_CODEC_ADAC_CFG1, 0, 1),
+
+ /* Mux for input/output path selection */
+ SND_SOC_DAPM_MUX("Playback Mux", SND_SOC_NOPM, 1, 0, &dac_mux),
+
+ /* Pins for Simple Card Bindings */
+ SND_SOC_DAPM_INPUT("MICL"),
+ SND_SOC_DAPM_INPUT("MICR"),
+ SND_SOC_DAPM_OUTPUT("HPOL"),
+ SND_SOC_DAPM_OUTPUT("HPOR"),
+ SND_SOC_DAPM_OUTPUT("SPKO"),
+};
+
+static const struct snd_soc_dapm_route rk817_dapm_routes[] = {
+
+ /* capture path */
+ /* left mic */
+ {"ADC L", NULL, "LDO Regulator"},
+ {"ADC L", NULL, "IBIAS Block"},
+ {"ADC L", NULL, "VAvg Buffer"},
+ {"ADC L", NULL, "PLL Power"},
+ {"ADC L", NULL, "ADC Clock"},
+ {"ADC L", NULL, "I2S TX Clock"},
+ {"ADC L", NULL, "ADC Channel Enable"},
+ {"ADC L", NULL, "I2S TX Channel Enable"},
+ {"ADC L", NULL, "I2S TX1 Transfer Start"},
+ {"MICL", NULL, "MIC Power On"},
+ {"MICL", NULL, "PGA L Power On"},
+ {"MICL", NULL, "Mic Boost L1"},
+ {"MICL", NULL, "Mic Boost L2"},
+ {"MICL", NULL, "I2S TX3 Transfer Start"},
+ {"MICL", NULL, "I2S TX3 Right Justified"},
+ {"ADC L", NULL, "MICL"},
+
+ /* right mic */
+ {"ADC R", NULL, "LDO Regulator"},
+ {"ADC R", NULL, "IBIAS Block"},
+ {"ADC R", NULL, "VAvg Buffer"},
+ {"ADC R", NULL, "PLL Power"},
+ {"ADC R", NULL, "ADC Clock"},
+ {"ADC R", NULL, "I2S TX Clock"},
+ {"ADC R", NULL, "ADC Channel Enable"},
+ {"ADC R", NULL, "I2S TX Channel Enable"},
+ {"ADC R", NULL, "I2S TX1 Transfer Start"},
+ {"MICR", NULL, "MIC Power On"},
+ {"MICR", NULL, "PGA R Power On"},
+ {"MICR", NULL, "Mic Boost R1"},
+ {"MICR", NULL, "Mic Boost R2"},
+ {"MICR", NULL, "I2S TX3 Transfer Start"},
+ {"MICR", NULL, "I2S TX3 Right Justified"},
+ {"ADC R", NULL, "MICR"},
+
+ /* playback path */
+ /* speaker path */
+ {"SPK DAC", NULL, "LDO Regulator"},
+ {"SPK DAC", NULL, "IBIAS Block"},
+ {"SPK DAC", NULL, "VAvg Buffer"},
+ {"SPK DAC", NULL, "PLL Power"},
+ {"SPK DAC", NULL, "I2S TX1 Transfer Start"},
+ {"SPK DAC", NULL, "DAC Clock"},
+ {"SPK DAC", NULL, "I2S RX Clock"},
+ {"SPK DAC", NULL, "DAC Channel Enable"},
+ {"SPK DAC", NULL, "I2S RX Channel Enable"},
+ {"SPK DAC", NULL, "Class D Mode"},
+ {"SPK DAC", NULL, "DAC Bias"},
+ {"SPK DAC", NULL, "DAC Mute Off"},
+ {"SPK DAC", NULL, "Enable Class D"},
+ {"SPK DAC", NULL, "Disable Class D Mute Ramp"},
+ {"SPK DAC", NULL, "Class D Mute Rate 1"},
+ {"SPK DAC", NULL, "Class D Mute Rate 2"},
+ {"SPK DAC", NULL, "Class D OCPP 2"},
+ {"SPK DAC", NULL, "Class D OCPP 3"},
+ {"SPK DAC", NULL, "Class D OCPN 2"},
+ {"SPK DAC", NULL, "Class D OCPN 3"},
+ {"SPK DAC", NULL, "High Pass Filter"},
+
+ /* headphone path L */
+ {"DAC L", NULL, "LDO Regulator"},
+ {"DAC L", NULL, "IBIAS Block"},
+ {"DAC L", NULL, "VAvg Buffer"},
+ {"DAC L", NULL, "PLL Power"},
+ {"DAC L", NULL, "I2S TX1 Transfer Start"},
+ {"DAC L", NULL, "DAC Clock"},
+ {"DAC L", NULL, "I2S RX Clock"},
+ {"DAC L", NULL, "DAC Channel Enable"},
+ {"DAC L", NULL, "I2S RX Channel Enable"},
+ {"DAC L", NULL, "DAC Bias"},
+ {"DAC L", NULL, "DAC Mute Off"},
+ {"DAC L", NULL, "Headphone Charge Pump"},
+ {"DAC L", NULL, "Headphone CP Discharge LDO"},
+ {"DAC L", NULL, "Headphone OStage"},
+ {"DAC L", NULL, "Headphone Pre Amp"},
+
+ /* headphone path R */
+ {"DAC R", NULL, "LDO Regulator"},
+ {"DAC R", NULL, "IBIAS Block"},
+ {"DAC R", NULL, "VAvg Buffer"},
+ {"DAC R", NULL, "PLL Power"},
+ {"DAC R", NULL, "I2S TX1 Transfer Start"},
+ {"DAC R", NULL, "DAC Clock"},
+ {"DAC R", NULL, "I2S RX Clock"},
+ {"DAC R", NULL, "DAC Channel Enable"},
+ {"DAC R", NULL, "I2S RX Channel Enable"},
+ {"DAC R", NULL, "DAC Bias"},
+ {"DAC R", NULL, "DAC Mute Off"},
+ {"DAC R", NULL, "Headphone Charge Pump"},
+ {"DAC R", NULL, "Headphone CP Discharge LDO"},
+ {"DAC R", NULL, "Headphone OStage"},
+ {"DAC R", NULL, "Headphone Pre Amp"},
+
+ /* mux path for output selection */
+ {"Playback Mux", "HP", "DAC L"},
+ {"Playback Mux", "HP", "DAC R"},
+ {"Playback Mux", "SPK", "SPK DAC"},
+ {"SPKO", NULL, "Playback Mux"},
+ {"HPOL", NULL, "Playback Mux"},
+ {"HPOR", NULL, "Playback Mux"},
+};
+
+static int rk817_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct rk817_codec_priv *rk817 = snd_soc_component_get_drvdata(component);
+
+ rk817->stereo_sysclk = freq;
+
+ return 0;
+}
+
+static int rk817_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ unsigned int i2s_mst = 0;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ i2s_mst |= RK817_I2S_MODE_SLV;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ i2s_mst |= RK817_I2S_MODE_MST;
+ break;
+ default:
+ dev_err(component->dev, "%s : set master mask failed!\n", __func__);
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, RK817_CODEC_DI2S_CKM,
+ RK817_I2S_MODE_MASK, i2s_mst);
+
+ return 0;
+}
+
+static int rk817_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ snd_soc_component_write(component, RK817_CODEC_DI2S_RXCR2,
+ VDW_RX_16BITS);
+ snd_soc_component_write(component, RK817_CODEC_DI2S_TXCR2,
+ VDW_TX_16BITS);
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ case SNDRV_PCM_FORMAT_S32_LE:
+ snd_soc_component_write(component, RK817_CODEC_DI2S_RXCR2,
+ VDW_RX_24BITS);
+ snd_soc_component_write(component, RK817_CODEC_DI2S_TXCR2,
+ VDW_TX_24BITS);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rk817_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
+{
+ struct snd_soc_component *component = dai->component;
+
+ if (mute)
+ snd_soc_component_update_bits(component,
+ RK817_CODEC_DDAC_MUTE_MIXCTL,
+ DACMT_MASK, DACMT_ENABLE);
+ else
+ snd_soc_component_update_bits(component,
+ RK817_CODEC_DDAC_MUTE_MIXCTL,
+ DACMT_MASK, DACMT_DISABLE);
+
+ return 0;
+}
+
+#define RK817_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
+ SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000 | \
+ SNDRV_PCM_RATE_96000)
+
+#define RK817_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
+ SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000 | \
+ SNDRV_PCM_RATE_96000)
+
+#define RK817_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+ SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE |\
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_ops rk817_dai_ops = {
+ .hw_params = rk817_hw_params,
+ .set_fmt = rk817_set_dai_fmt,
+ .set_sysclk = rk817_set_dai_sysclk,
+ .mute_stream = rk817_digital_mute,
+ .no_capture_mute = 1,
+};
+
+static struct snd_soc_dai_driver rk817_dai[] = {
+ {
+ .name = "rk817-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = RK817_PLAYBACK_RATES,
+ .formats = RK817_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = RK817_CAPTURE_RATES,
+ .formats = RK817_FORMATS,
+ },
+ .ops = &rk817_dai_ops,
+ },
+};
+
+static int rk817_probe(struct snd_soc_component *component)
+{
+ struct rk817_codec_priv *rk817 = snd_soc_component_get_drvdata(component);
+ struct rk808 *rk808 = dev_get_drvdata(component->dev->parent);
+ int ret;
+
+ snd_soc_component_init_regmap(component, rk808->regmap);
+ rk817->component = component;
+
+ ret = snd_soc_component_write(component, RK817_CODEC_DTOP_LPT_SRST, 0x40);
+
+ rk817_init(component);
+
+ /* setting initial pll values so that we can continue to leverage simple-audio-card.
+ * The values aren't important since no parameters are used.
+ */
+
+ snd_soc_component_set_pll(component, 0, 0, 0, 0);
+
+ return 0;
+}
+
+static void rk817_remove(struct snd_soc_component *component)
+{
+ snd_soc_component_exit_regmap(component);
+}
+
+static const struct snd_soc_component_driver soc_codec_dev_rk817 = {
+ .probe = rk817_probe,
+ .remove = rk817_remove,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+ .controls = rk817_volume_controls,
+ .num_controls = ARRAY_SIZE(rk817_volume_controls),
+ .dapm_routes = rk817_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(rk817_dapm_routes),
+ .dapm_widgets = rk817_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(rk817_dapm_widgets),
+ .set_pll = rk817_set_component_pll,
+};
+
+static void rk817_codec_parse_dt_property(struct device *dev,
+ struct rk817_codec_priv *rk817)
+{
+ struct device_node *node = dev->parent->of_node;
+
+ node = of_get_child_by_name(dev->parent->of_node, "codec");
+ if (!node) {
+ dev_dbg(dev, "%s() Can not get child: codec\n",
+ __func__);
+ }
+
+ rk817->mic_in_differential =
+ of_property_read_bool(node, "rockchip,mic-in-differential");
+}
+
+static int rk817_platform_probe(struct platform_device *pdev)
+{
+ struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
+ struct rk817_codec_priv *rk817_codec_data;
+ int ret;
+
+ rk817_codec_data = devm_kzalloc(&pdev->dev,
+ sizeof(struct rk817_codec_priv),
+ GFP_KERNEL);
+ if (!rk817_codec_data)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, rk817_codec_data);
+
+ rk817_codec_data->rk808 = rk808;
+
+ rk817_codec_parse_dt_property(&pdev->dev, rk817_codec_data);
+
+ rk817_codec_data->mclk = clk_get(pdev->dev.parent, "mclk");
+ if (IS_ERR(rk817_codec_data->mclk)) {
+ dev_dbg(&pdev->dev, "Unable to get mclk\n");
+ ret = -ENXIO;
+ goto err_;
+ }
+
+ ret = clk_prepare_enable(rk817_codec_data->mclk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "%s() clock prepare error %d\n",
+ __func__, ret);
+ goto err_;
+ }
+
+ ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_dev_rk817,
+ rk817_dai, ARRAY_SIZE(rk817_dai));
+ if (ret < 0) {
+ dev_err(&pdev->dev, "%s() register codec error %d\n",
+ __func__, ret);
+ goto err_;
+ }
+
+ return 0;
+err_:
+
+ return ret;
+}
+
+static int rk817_platform_remove(struct platform_device *pdev)
+{
+ struct rk817_codec_priv *rk817 = platform_get_drvdata(pdev);
+
+ clk_disable_unprepare(rk817->mclk);
+
+ return 0;
+}
+
+static struct platform_driver rk817_codec_driver = {
+ .driver = {
+ .name = "rk817-codec",
+ },
+ .probe = rk817_platform_probe,
+ .remove = rk817_platform_remove,
+};
+
+module_platform_driver(rk817_codec_driver);
+
+MODULE_DESCRIPTION("ASoC RK817 codec driver");
+MODULE_AUTHOR("binyuan <kevan.lan@rock-chips.com>");
+MODULE_LICENSE("GPL v2");
generated by cgit (git 2.34.1) at 2024-06-11 23:57:50 +0000