Il 26/02/24 15:01, amergnat@baylibre.com ha scritto:
From: Nicolas Belin nbelin@baylibre.com
Add the support of MT6357 PMIC audio codec.
Signed-off-by: Nicolas Belin nbelin@baylibre.com Signed-off-by: Alexandre Mergnat amergnat@baylibre.com
sound/soc/codecs/Kconfig | 7 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/mt6357.c | 1805 +++++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/mt6357.h | 674 +++++++++++++++++ 4 files changed, 2488 insertions(+)
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 59f9742e9ff4..9cf2b9b70472 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -153,6 +153,7 @@ config SND_SOC_ALL_CODECS imply SND_SOC_MC13783 imply SND_SOC_ML26124 imply SND_SOC_MT6351
- imply SND_SOC_MT6357 imply SND_SOC_MT6358 imply SND_SOC_MT6359 imply SND_SOC_MT6660
@@ -2361,6 +2362,12 @@ config SND_SOC_ML26124 config SND_SOC_MT6351 tristate "MediaTek MT6351 Codec" +config SND_SOC_MT6357
- tristate "MediaTek MT6357 Codec"
- help
Enable support for the platform which uses MT6357 asexternal codec device.- config SND_SOC_MT6358 tristate "MediaTek MT6358 Codec" help
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index f53baa2b9565..33e27612867e 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -169,6 +169,7 @@ snd-soc-ml26124-objs := ml26124.o snd-soc-msm8916-analog-objs := msm8916-wcd-analog.o snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o snd-soc-mt6351-objs := mt6351.o +snd-soc-mt6357-objs := mt6357.o snd-soc-mt6358-objs := mt6358.o snd-soc-mt6359-objs := mt6359.o snd-soc-mt6359-accdet-objs := mt6359-accdet.o @@ -554,6 +555,7 @@ obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o obj-$(CONFIG_SND_SOC_MSM8916_WCD_ANALOG) +=snd-soc-msm8916-analog.o obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o obj-$(CONFIG_SND_SOC_MT6351) += snd-soc-mt6351.o +obj-$(CONFIG_SND_SOC_MT6357) += snd-soc-mt6357.o obj-$(CONFIG_SND_SOC_MT6358) += snd-soc-mt6358.o obj-$(CONFIG_SND_SOC_MT6359) += snd-soc-mt6359.o obj-$(CONFIG_SND_SOC_MT6359_ACCDET) += mt6359-accdet.o diff --git a/sound/soc/codecs/mt6357.c b/sound/soc/codecs/mt6357.c new file mode 100644 index 000000000000..13e95c227114 --- /dev/null +++ b/sound/soc/codecs/mt6357.c @@ -0,0 +1,1805 @@ +// SPDX-License-Identifier: GPL-2.0 +/*
- MT6357 ALSA SoC audio codec driver
- Copyright (c) 2024 Baylibre
- Author: Nicolas Belin nbelin@baylibre.com
- */
+#include <linux/dma-mapping.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include <linux/mfd/mt6397/core.h> +#include <linux/regulator/consumer.h>
+#include "mt6357.h"
+static void set_playback_gpio(struct mt6357_priv *priv, bool enable) +{
you're anyway always doing CLEAR_ALL, so you can do it outside of the if branch.
regmap_write( ... CLEAR_ALL);
if (enable) { ... } else { ... }
- if (enable) {
/* set gpio mosi mode */regmap_write(priv->regmap, MT6357_GPIO_MODE2_CLR, GPIO_MODE2_CLEAR_ALL);regmap_write(priv->regmap, MT6357_GPIO_MODE2_SET, GPIO8_MODE_SET_AUD_CLK_MOSI |GPIO9_MODE_SET_AUD_DAT_MOSI0 |GPIO10_MODE_SET_AUD_DAT_MOSI1 |GPIO11_MODE_SET_AUD_SYNC_MOSI);
Are you sure that you need to write to MODE2_SET *and* to MODE2?!
regmap_write(priv->regmap, MT6357_GPIO_MODE2, GPIO8_MODE_AUD_CLK_MOSI |GPIO9_MODE_AUD_DAT_MOSI0 |GPIO10_MODE_AUD_DAT_MOSI1 |GPIO11_MODE_AUD_SYNC_MOSI);- } else {
/* set pad_aud_*_mosi to GPIO mode and dir input* reason:* pad_aud_dat_mosi*, because the pin is used as boot strap*/regmap_write(priv->regmap, MT6357_GPIO_MODE2_CLR, GPIO_MODE2_CLEAR_ALL);regmap_write(priv->regmap, MT6357_GPIO_MODE2, GPIO8_MODE_GPIO |GPIO9_MODE_GPIO |GPIO10_MODE_GPIO |GPIO11_MODE_GPIO);regmap_update_bits(priv->regmap, MT6357_GPIO_DIR0, GPIO8_DIR_MASK |GPIO9_DIR_MASK |GPIO10_DIR_MASK |GPIO11_DIR_MASK,GPIO8_DIR_INPUT |GPIO9_DIR_INPUT |GPIO10_DIR_INPUT |GPIO11_DIR_INPUT);- }
+}
+static void set_capture_gpio(struct mt6357_priv *priv, bool enable) +{
same comment applies here.
- if (enable) {
/* set gpio miso mode */regmap_write(priv->regmap, MT6357_GPIO_MODE3_CLR, GPIO_MODE3_CLEAR_ALL);regmap_write(priv->regmap, MT6357_GPIO_MODE3_SET, GPIO12_MODE_SET_AUD_CLK_MISO |GPIO13_MODE_SET_AUD_DAT_MISO0 |GPIO14_MODE_SET_AUD_DAT_MISO1 |GPIO15_MODE_SET_AUD_SYNC_MISO);regmap_write(priv->regmap, MT6357_GPIO_MODE3, GPIO12_MODE_AUD_CLK_MISO |GPIO13_MODE_AUD_DAT_MISO0 |GPIO14_MODE_AUD_DAT_MISO1 |GPIO15_MODE_AUD_SYNC_MISO);- } else {
/* set pad_aud_*_miso to GPIO mode and dir input* reason:* pad_aud_clk_miso, because when playback only the miso_clk* will also have 26m, so will have power leak* pad_aud_dat_miso*, because the pin is used as boot strap*/regmap_write(priv->regmap, MT6357_GPIO_MODE3_CLR, GPIO_MODE3_CLEAR_ALL);regmap_write(priv->regmap, MT6357_GPIO_MODE3, GPIO12_MODE_GPIO |GPIO13_MODE_GPIO |GPIO14_MODE_GPIO |GPIO15_MODE_GPIO);regmap_update_bits(priv->regmap, MT6357_GPIO_DIR0, GPIO12_DIR_MASK |GPIO13_DIR_MASK |GPIO14_DIR_MASK |GPIO15_DIR_MASK,GPIO12_DIR_INPUT |GPIO13_DIR_INPUT |GPIO14_DIR_INPUT |GPIO15_DIR_INPUT);- }
+}
+static void hp_main_output_ramp(struct mt6357_priv *priv, bool up) +{
- int i = 0, stage = 0;
- int target = 7;
- /* Enable/Reduce HPL/R main output stage step by step */
- for (i = 0; i <= target; i++) {
double 'i` initialization.
stage = up ? i : target - i;regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON1,HPLOUT_STG_CTRL_VAUDP15_MASK,stage << HPLOUT_STG_CTRL_VAUDP15_SFT);regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON1,HPROUT_STG_CTRL_VAUDP15_MASK,stage << HPROUT_STG_CTRL_VAUDP15_SFT);usleep_range(600, 700);- }
+}
+static void hp_aux_feedback_loop_gain_ramp(struct mt6357_priv *priv, bool up) +{
- int i = 0, stage = 0;
- /* Reduce HP aux feedback loop gain step by step */
- for (i = 0; i <= 0xf; i++) {
same
stage = up ? i : 0xf - i;regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON6,HP_AUX_LOOP_GAIN_MASK, stage << HP_AUX_LOOP_GAIN_SFT);usleep_range(600, 700);- }
+}
+static void hp_pull_down(struct mt6357_priv *priv, bool enable) +{
- if (enable)
regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON2,HPP_SHORT_2VCM_VAUDP15_MASK, HPP_SHORT_2VCM_VAUDP15_ENABLE);- else
regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON2,HPP_SHORT_2VCM_VAUDP15_MASK, HPP_SHORT_2VCM_VAUDP15_DISABLE);+}
+static bool is_valid_hp_pga_idx(int reg_idx) +{
- return (reg_idx >= DL_GAIN_8DB && reg_idx <= DL_GAIN_N_12DB) || reg_idx == DL_GAIN_N_40DB;
+}
+static void volume_ramp(struct mt6357_priv *priv, int lfrom, int lto,
int rfrom, int rto, unsigned int reg_addr)+{
- int lcount, rcount, sleep = 0;
- if (!is_valid_hp_pga_idx(lfrom) || !is_valid_hp_pga_idx(lto))
pr_debug("%s(), invalid left volume index, from %d, to %d\n",__func__, lfrom, lto);- if (!is_valid_hp_pga_idx(rfrom) || !is_valid_hp_pga_idx(rto))
pr_debug("%s(), invalid right volume index, from %d, to %d\n",__func__, rfrom, rto);- if (lto > lfrom)
lcount = 1;- else
lcount = -1;- if (rto > rfrom)
rcount = 1;- else
rcount = -1;- while ((lto != lfrom) || (rto != rfrom)) {
if (lto != lfrom) {lfrom += lcount;if (is_valid_hp_pga_idx(lfrom)) {regmap_update_bits(priv->regmap, reg_addr, DL_GAIN_REG_LEFT_MASK,lfrom << DL_GAIN_REG_LEFT_SHIFT);sleep = 1;}}if (rto != rfrom) {rfrom += rcount;if (is_valid_hp_pga_idx(rfrom)) {regmap_update_bits(priv->regmap, reg_addr, DL_GAIN_REG_RIGHT_MASK,rfrom << DL_GAIN_REG_RIGHT_SHIFT);sleep = 1;}}if (sleep)usleep_range(200, 300);- }
+}
+static void lo_volume_ramp(struct mt6357_priv *priv, int lfrom, int lto, int rfrom, int rto) +{
- volume_ramp(priv, lfrom, lto, rfrom, rto, MT6357_ZCD_CON1);
+}
+static void hp_volume_ramp(struct mt6357_priv *priv, int lfrom, int lto, int rfrom, int rto) +{
- volume_ramp(priv, lfrom, lto, rfrom, rto, MT6357_ZCD_CON2);
+}
+static void hs_volume_ramp(struct mt6357_priv *priv, int from, int to) +{
- volume_ramp(priv, from, to, 0, 0, MT6357_ZCD_CON3);
+}
+static int mt6357_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{
- struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
- struct mt6357_priv *priv = snd_soc_component_get_drvdata(component);
- struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value;
- unsigned int reg;
- int ret;
- ret = snd_soc_put_volsw(kcontrol, ucontrol);
- if (ret < 0)
return ret;
regmap_read(priv->regmap, mc->reg, ®) switch (mc->reg) { ... };
return 0;
- switch (mc->reg) {
- case MT6357_ZCD_CON2:
regmap_read(priv->regmap, MT6357_ZCD_CON2, ®);priv->ana_gain[ANALOG_VOLUME_HPOUTL] =(reg & AUD_HPL_GAIN_MASK) >> AUD_HPL_GAIN_SFT;priv->ana_gain[ANALOG_VOLUME_HPOUTR] =(reg & AUD_HPR_GAIN_MASK) >> AUD_HPR_GAIN_SFT;break;- case MT6357_ZCD_CON1:
regmap_read(priv->regmap, MT6357_ZCD_CON1, ®);priv->ana_gain[ANALOG_VOLUME_LINEOUTL] =(reg & AUD_LOL_GAIN_MASK) >> AUD_LOL_GAIN_SFT;priv->ana_gain[ANALOG_VOLUME_LINEOUTR] =(reg & AUD_LOR_GAIN_MASK) >> AUD_LOR_GAIN_SFT;break;- case MT6357_ZCD_CON3:
regmap_read(priv->regmap, MT6357_ZCD_CON3, ®);priv->ana_gain[ANALOG_VOLUME_HSOUT] =(reg & AUD_HS_GAIN_MASK) >> AUD_HS_GAIN_SFT;break;- case MT6357_AUDENC_ANA_CON0:
- case MT6357_AUDENC_ANA_CON1:
regmap_read(priv->regmap, MT6357_AUDENC_ANA_CON0, ®);priv->ana_gain[ANALOG_VOLUME_MIC1] =(reg & AUDPREAMPLGAIN_MASK) >> AUDPREAMPLGAIN_SFT;regmap_read(priv->regmap, MT6357_AUDENC_ANA_CON1, ®);priv->ana_gain[ANALOG_VOLUME_MIC2] =(reg & AUDPREAMPRGAIN_MASK) >> AUDPREAMPRGAIN_SFT;break;- }
- return ret;
+}
..snip..
+static int adc_enable_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,int event)+{
- struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
- struct mt6357_priv *priv = snd_soc_component_get_drvdata(cmpnt);
- dev_dbg(priv->dev, "%s(), event = 0x%x\n", __func__, event);
- switch (event) {
- case SND_SOC_DAPM_PRE_PMU:
/* enable aud_pad TX fifos */regmap_update_bits(priv->regmap, MT6357_AFE_AUD_PAD_TOP,AUD_PAD_TX_FIFO_NORMAL_PATH_MASK,AUD_PAD_TX_FIFO_NORMAL_PATH_ENABLE);/* UL turn on */regmap_update_bits(priv->regmap, MT6357_AFE_UL_SRC_CON0_L,UL_SRC_ON_TMP_CTL_MASK, UL_SRC_ENABLE);/* Wait to avoid any pop noises */msleep(100);//set the mic gains to the stored values
Keep the comments style consistent please.
regmap_update_bits(priv->regmap, MT6357_AUDENC_ANA_CON0, AUDPREAMPLGAIN_MASK,priv->ana_gain[ANALOG_VOLUME_MIC1] << AUDPREAMPLGAIN_SFT);regmap_update_bits(priv->regmap, MT6357_AUDENC_ANA_CON1, AUDPREAMPRGAIN_MASK,priv->ana_gain[ANALOG_VOLUME_MIC2] << AUDPREAMPRGAIN_SFT);break;- case SND_SOC_DAPM_POST_PMD:
/* UL turn off */regmap_update_bits(priv->regmap, MT6357_AFE_UL_SRC_CON0_L,UL_SRC_ON_TMP_CTL_MASK, UL_SRC_DISABLE);/* disable aud_pad TX fifos */regmap_update_bits(priv->regmap, MT6357_AFE_AUD_PAD_TOP,AUD_PAD_TX_FIFO_NORMAL_PATH_MASK,AUD_PAD_TX_FIFO_NORMAL_PATH_DISABLE);break;- default:
break;- }
- return 0;
+}
..snip..
+static int lol_mux_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,int event)+{
- struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
- struct mt6357_priv *priv = snd_soc_component_get_drvdata(cmpnt);
- dev_dbg(priv->dev, "%s(), event 0x%x\n", __func__, event);
- switch (event) {
- case SND_SOC_DAPM_POST_PMU:
/* Set LO STB enhance circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON4,AUD_LOLOUT_STB_ENH_VAUDP15_MASK,AUD_LOLOUT_STB_ENH_VAUDP15_ENABLE);/* Enable LO driver bias circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON4,AUD_LOL_PWRUP_BIAS_VAUDP15_MASK,AUD_LOL_PWRUP_BIAS_VAUDP15_ENABLE);/* Enable LO driver core circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON4,AUD_LOL_PWRUP_VAUDP15_MASK, AUD_LOL_PWRUP_VAUDP15_ENABLE);/* Set LOL gain to normal gain step by step */lo_volume_ramp(priv, DL_GAIN_N_40DB, priv->ana_gain[ANALOG_VOLUME_LINEOUTL],DL_GAIN_N_40DB, priv->ana_gain[ANALOG_VOLUME_LINEOUTR]);break;- case SND_SOC_DAPM_PRE_PMD:
Drop extra blank line.
/* decrease LOL gain to minimum gain step by step */lo_volume_ramp(priv, priv->ana_gain[ANALOG_VOLUME_LINEOUTL], DL_GAIN_N_40DB,priv->ana_gain[ANALOG_VOLUME_LINEOUTR], DL_GAIN_N_40DB);/* Disable LO driver core circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON4,AUD_LOL_PWRUP_VAUDP15_MASK, AUD_LOL_PWRUP_VAUDP15_DISABLE);/* Disable LO driver bias circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON4,AUD_LOL_PWRUP_BIAS_VAUDP15_MASK,AUD_LOL_PWRUP_BIAS_VAUDP15_DISABLE);/* Clear LO STB enhance circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON4,AUD_LOLOUT_STB_ENH_VAUDP15_MASK,AUD_LOLOUT_STB_ENH_VAUDP15_DISABLE);break;- default:
break;- }
- return 0;
+}
+static int hs_mux_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,int event)+{
- struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
- struct mt6357_priv *priv = snd_soc_component_get_drvdata(cmpnt);
- dev_dbg(priv->dev, "%s(), event 0x%x\n", __func__, event);
- switch (event) {
- case SND_SOC_DAPM_POST_PMU:
/* Set HS STB enhance circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON3,AUD_HSOUT_STB_ENH_VAUDP15_MASK,AUD_HSOUT_STB_ENH_VAUDP15_ENABLE);/* Enable HS driver bias circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON3,AUD_HS_PWRUP_BIAS_VAUDP15_MASK,AUD_HS_PWRUP_BIAS_VAUDP15_ENABLE);/* Enable HS driver core circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON3,AUD_HS_PWRUP_VAUDP15_MASK, AUD_HS_PWRUP_VAUDP15_ENABLE);/* Set HS gain to normal gain step by step */hs_volume_ramp(priv, DL_GAIN_N_40DB, priv->ana_gain[ANALOG_VOLUME_HSOUT]);break;- case SND_SOC_DAPM_PRE_PMD:
same
/* decrease HS gain to minimum gain step by step */hs_volume_ramp(priv, priv->ana_gain[ANALOG_VOLUME_HSOUT], DL_GAIN_N_40DB);/* Disable HS driver core circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON3,AUD_HS_PWRUP_VAUDP15_MASK, AUD_HS_PWRUP_VAUDP15_DISABLE);/* Disable HS driver bias circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON3,AUD_HS_PWRUP_BIAS_VAUDP15_MASK,AUD_HS_PWRUP_BIAS_VAUDP15_ENABLE);/* Clear HS STB enhance circuits */regmap_update_bits(priv->regmap, MT6357_AUDDEC_ANA_CON3,AUD_HSOUT_STB_ENH_VAUDP15_MASK,AUD_HSOUT_STB_ENH_VAUDP15_DISABLE);break;- default:
break;- }
- return 0;
+}
..snip..
+static unsigned int mt6357_read(struct snd_soc_component *codec, unsigned int reg) +{
- struct mt6357_priv *priv = snd_soc_component_get_drvdata(codec);
- unsigned int val;
- pr_debug("%s() reg = 0x%x", __func__, reg);
I'm not sure that you really need that pr_debug()....
- regmap_read(priv->regmap, reg, &val);
- return val;
+}
+static int mt6357_write(struct snd_soc_component *codec, unsigned int reg, unsigned int value) +{
- struct mt6357_priv *priv = snd_soc_component_get_drvdata(codec);
- pr_debug("%s() reg = 0x%x value= 0x%x\n", __func__, reg, value);
...nor this one.
- regmap_update_bits(priv->regmap, reg, 0xffff, value);
- return 0;
return regmap_update_bits(...);
+}
+static const struct snd_soc_component_driver mt6357_soc_component_driver = {
- .probe = mt6357_codec_probe,
- .read = mt6357_read,
- .write = mt6357_write,
- .controls = mt6357_controls,
- .num_controls = ARRAY_SIZE(mt6357_controls),
- .dapm_widgets = mt6357_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(mt6357_dapm_widgets),
- .dapm_routes = mt6357_dapm_routes,
- .num_dapm_routes = ARRAY_SIZE(mt6357_dapm_routes),
+};
+static void mt6357_parse_dt(struct mt6357_priv *priv) +{
- int ret, voltage_index;
- u32 micbias_voltage_index = 0;
- struct device *dev = priv->dev;
- priv->pull_down_needed = false;
- if (of_property_read_bool(dev->of_node, "mediatek,hp-pull-down"))
priv->pull_down_needed = true;- micbias_voltage_index = MT6357_MICBIAS0_DEFAULT_VOLTAGE_INDEX;
- ret = of_property_read_u32(dev->of_node, "mediatek,micbias0-microvolt", &voltage_index);
- if (!ret)
micbias_voltage_index = voltage_index;- regmap_update_bits(priv->regmap, MT6357_AUDENC_ANA_CON8, AUD_MICBIAS0_VREF_MASK,
micbias_voltage_index << AUD_MICBIAS0_VREF_SFT);- micbias_voltage_index = MT6357_MICBIAS1_DEFAULT_VOLTAGE_INDEX;
- ret = of_property_read_u32(dev->of_node, "mediatek,micbias1-microvolt", &voltage_index);
- if (!ret)
micbias_voltage_index = voltage_index;- regmap_update_bits(priv->regmap, MT6357_AUDENC_ANA_CON9, AUD_MICBIAS1_VREF_MASK,
micbias_voltage_index << AUD_MICBIAS1_VREF_SFT);+}
+static int mt6357_platform_driver_probe(struct platform_device *pdev) +{
- struct mt6357_priv *priv;
- struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent); struct mt6357_priv *priv; int ret;
looks better :-)
- int ret;
- ret = devm_regulator_get_enable(&pdev->dev, "vaud28");
- if (ret)
return dev_err_probe(&pdev->dev, ret, "failed to enable vaud28 regulator\n");- priv = devm_kzalloc(&pdev->dev,
sizeof(struct mt6357_priv),GFP_KERNEL);- if (!priv)
return -ENOMEM;- dev_set_drvdata(&pdev->dev, priv);
- priv->dev = &pdev->dev;
- priv->regmap = mt6397->regmap;
- if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);- mt6357_parse_dt(priv);
- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
- if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;- return devm_snd_soc_register_component(&pdev->dev,
&mt6357_soc_component_driver,mtk_6357_dai_codecs,ARRAY_SIZE(mtk_6357_dai_codecs));+}
+static const struct of_device_id mt6357_of_match[] = {
- {.compatible = "mediatek,mt6357-sound",},
- {}
{ /* sentinel */ }
+}; +MODULE_DEVICE_TABLE(of, mt6357_of_match);
+static struct platform_driver mt6357_platform_driver = {
- .driver = {
.name = "mt6357-sound",.of_match_table = mt6357_of_match,},- .probe = mt6357_platform_driver_probe,
+};
+module_platform_driver(mt6357_platform_driver)
+MODULE_DESCRIPTION("MT6357 ALSA SoC codec driver"); +MODULE_AUTHOR("Nicolas Belin nbelin@baylibre.com"); +MODULE_LICENSE("GPL");
Cheers, Angelo