* Re: [PATCH 1/2] ASoC: add ES8156 codec driver
[not found] ` <20211210151041.108751-2-chenshumin86@sina.com>
@ 2021-12-10 15:53 ` Pierre-Louis Bossart
2021-12-10 16:29 ` Mark Brown
2021-12-10 17:32 ` kernel test robot
1 sibling, 1 reply; 5+ messages in thread
From: Pierre-Louis Bossart @ 2021-12-10 15:53 UTC (permalink / raw)
To: Shumin Chen, perex, tiwai, lgirdwood, broonie; +Cc: alsa-devel, linux-kernel
On 12/10/21 9:10 AM, Shumin Chen wrote:
> Add a codec driver for the Everest ES8156, based on code provided by
> Will from Everest Sem>
> Signed-off-by: Shumin Chen <chenshumin86@sina.com>
There's an additional reference below:
+ * Author: Will <pengxiaoxin@everset-semi.com>
This should probably come with a Signed-off-by tag from
'Will'
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin
> @@ -0,0 +1,614 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * es8156.c -- es8156 ALSA SoC audio driver
> + * Copyright Everest Semiconductor Co.,Ltd
> + *
> + * Author: Will <pengxiaoxin@everset-semi.com>
> + * Shumin Chen <chenshumin86@sina.com>
> + *
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/module.h>
> +#include <linux/moduleparam.h>
> +#include <linux/init.h>
> +#include <linux/delay.h>
> +#include <linux/pm.h>
> +#include <linux/i2c.h>
> +#include <linux/spi/spi.h>
> +#include <linux/platform_device.h>
> +#include <linux/slab.h>
> +#include <linux/of_gpio.h>
> +#include <sound/core.h>
> +#include <sound/pcm.h>
> +#include <sound/pcm_params.h>
> +#include <sound/tlv.h>
> +#include <sound/soc.h>
> +#include <sound/soc-dapm.h>
> +#include <sound/initval.h>
> +#include <linux/proc_fs.h>
> +#include <linux/gpio.h>
> +#include <linux/interrupt.h>
> +#include <linux/irq.h>
> +#include <linux/regmap.h>
usually the headers are added by alphabetical order.
> +#include "es8156.h"
> +
> +#define INVALID_GPIO -1
> +#define GPIO_LOW 0
> +#define GPIO_HIGH 1
> +#define es8156_DEF_VOL 0xBF
> +#define MCLK 1
edit: these defines are used below to enable/disable parts of the code.
I don't think it's quite right to do so, you would want to use means to
read properties from platform firmware or use 'optional' versions of
functions to get clocks and gpios.
> +
> +static struct snd_soc_component *es8156_codec;
> +
> +static const struct reg_default es8156_reg_defaults[] = {
> + {0x00, 0x1c}, {0x01, 0x20}, {0x02, 0x00}, {0x03, 0x01},
> + {0x04, 0x00}, {0x05, 0x04}, {0x06, 0x11}, {0x07, 0x00},
> + {0x08, 0x06}, {0x09, 0x00}, {0x0a, 0x50}, {0x0b, 0x50},
> + {0x0c, 0x00}, {0x0d, 0x10}, {0x10, 0x40}, {0x10, 0x40},
> + {0x11, 0x00}, {0x12, 0x04}, {0x13, 0x11}, {0x14, 0xbf},
> + {0x15, 0x00}, {0x16, 0x00}, {0x17, 0xf7}, {0x18, 0x00},
> + {0x19, 0x20}, {0x1a, 0x00}, {0x20, 0x16}, {0x21, 0x7f},
> + {0x22, 0x00}, {0x23, 0x86}, {0x24, 0x00}, {0x25, 0x07},
> + {0xfc, 0x00}, {0xfd, 0x81}, {0xfe, 0x55}, {0xff, 0x10},
> +};
> +
> +/* codec private data */
> +struct es8156_priv {
> + struct regmap *regmap;
> + unsigned int dmic_amic;
> + unsigned int sysclk;
> + struct snd_pcm_hw_constraint_list *sysclk_constraints;
> + struct clk *mclk;
> + int debounce_time;
> + int hp_det_invert;
> + struct delayed_work work;
> +
> + int spk_ctl_gpio;
> + int hp_det_gpio;
> + bool muted;
> + bool hp_inserted;
> + bool spk_active_level;
> +
> + int pwr_count;
> +};
> +
> +/*
> + * es8156_reset
> + */
> +static int es8156_reset(struct snd_soc_component *codec)
> +{
> + snd_soc_component_write(codec, ES8156_RESET_REG00, 0x1c);
> + usleep_range(5000, 5500);
> + return snd_soc_component_write(codec, ES8156_RESET_REG00, 0x03);
it's a bit odd that you care about the return of the function only in
the second call, is this intentional? Or is this a shortcut for
snd_soc_component_write(codec, ES8156_RESET_REG00, 0x1c);
usleep_range(5000, 5500);
snd_soc_component_write(codec, ES8156_RESET_REG00, 0x03);
return 0;
?
> +static int es8156_set_dai_fmt(struct snd_soc_dai *codec_dai,
> + unsigned int fmt)
> +{
> + struct snd_soc_component *codec = codec_dai->component;
> +
> + /* set master/slave audio interface */
we use clock provider and consumer terms now.
> + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK
> + case SND_SOC_DAIFMT_CBM_CFM:/* es8156 master */
CBP_CFP
> + snd_soc_component_update_bits(codec, ES8156_SCLK_MODE_REG02, 0x01, 0x01);
> + break;
> + case SND_SOC_DAIFMT_CBS_CFS:/* es8156 slave */
CBC_CFC
> +static int es8156_mute(struct snd_soc_dai *dai, int mute, int stream)
> +{
> + struct snd_soc_component *codec = dai->component;
> + struct es8156_priv *es8156 = snd_soc_component_get_drvdata(codec);
> +
> + es8156->muted = mute;
> + if (mute) {
if (!es8156->hp_inserted)
for symmetry with the case below?
> + es8156_enable_spk(es8156, false);
> + msleep(100);
> + snd_soc_component_update_bits(codec, ES8156_DAC_MUTE_REG13, 0x08, 0x08);
> + } else if (dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK]) {
> + snd_soc_component_update_bits(codec, ES8156_DAC_MUTE_REG13, 0x08, 0x00);
> +
> + if (!es8156->hp_inserted)
> + es8156_enable_spk(es8156, true);
> + }
> + return 0;
> +}
> +static const struct snd_soc_dai_ops es8156_ops = {
> + .startup = NULL,
> + .hw_params = es8156_pcm_hw_params,
> + .set_fmt = es8156_set_dai_fmt,
> + .set_sysclk = NULL,
> + .mute_stream = es8156_mute,
> + .shutdown = NULL,
> +};
don't add callbacks that are NULL.
> +
> +static struct snd_soc_dai_driver es8156_dai = {
> + .name = "ES8156 HiFi",
> + .playback = {
> + .stream_name = "Playback",
> + .channels_min = 1,
> + .channels_max = 2,
> + .rates = es8156_RATES,
> + .formats = es8156_FORMATS,
> + },
> + .ops = &es8156_ops,
> + .symmetric_rate = 1,
not sure what the symmetry might mean if there is only playback support.
Likewise the tests above for the playback only direction can only be
always true then?
> +static int es8156_init_regs(struct snd_soc_component *codec)
> +{
> + /* set clock and analog power */
> + snd_soc_component_write(codec, ES8156_SCLK_MODE_REG02, 0x04);
> + snd_soc_component_write(codec, ES8156_ANALOG_SYS1_REG20, 0x2A);
> + snd_soc_component_write(codec, ES8156_ANALOG_SYS2_REG21, 0x3C);
> + snd_soc_component_write(codec, ES8156_ANALOG_SYS3_REG22, 0x08);
> + snd_soc_component_write(codec, ES8156_ANALOG_LP_REG24, 0x07);
> + snd_soc_component_write(codec, ES8156_ANALOG_SYS4_REG23, 0x00);
> +
> + /* set powerup time */
> + snd_soc_component_write(codec, ES8156_TIME_CONTROL1_REG0A, 0x01);
> + snd_soc_component_write(codec, ES8156_TIME_CONTROL2_REG0B, 0x01);
> +
> + /* set digtal volume */
typo: digital
> + snd_soc_component_write(codec, ES8156_VOLUME_CONTROL_REG14, 0xBF);
> +
> + /* set MCLK */
> + snd_soc_component_write(codec, ES8156_MAINCLOCK_CTL_REG01, 0x21);
> + snd_soc_component_write(codec, ES8156_P2S_CONTROL_REG0D, 0x14);
> + snd_soc_component_write(codec, ES8156_MISC_CONTROL3_REG18, 0x00);
> + snd_soc_component_write(codec, ES8156_CLOCK_ON_OFF_REG08, 0x3F);
> + snd_soc_component_write(codec, ES8156_RESET_REG00, 0x02);
> + snd_soc_component_write(codec, ES8156_RESET_REG00, 0x03);
> + snd_soc_component_write(codec, ES8156_ANALOG_SYS5_REG25, 0x20);
> +
> + return 0;
> +}
> +
> +static int es8156_suspend(struct snd_soc_component *codec)
> +{
> + es8156_set_bias_level(codec, SND_SOC_BIAS_OFF);
> +
> + return 0;
> +}
> +
> +static int es8156_resume(struct snd_soc_component *codec)
> +{
> + return 0;
es8156_set_bias_level(codec, SND_SOC_BIAS_ON);
for symmetry with suspend?
> +static int es8156_probe(struct snd_soc_component *codec)
> +{
> + struct es8156_priv *es8156 = snd_soc_component_get_drvdata(codec);
> + int ret = 0;
> +
> + es8156_codec = codec;
> +
> +#if MCLK
> + es8156->mclk = devm_clk_get(codec->dev, "mclk");
> + if (PTR_ERR(es8156->mclk) == -EPROBE_DEFER)
> + return -EPROBE_DEFER;
> + ret = clk_prepare_enable(es8156->mclk);
> +#endif
Unclear how MCLK will be enabled in a build, did you mean
es8156->mclk = devm_clk_get_optional(codec->dev, "mclk");
> + es8156_reset(codec);
> + es8156_init_regs(codec);
> +
> + return ret;
> +}
> +/* es8156 7bit i2c address:CE pin:0 0x08 / CE pin:1 0x09 */
> +static int es8156_i2c_probe(struct i2c_client *i2c,
> + const struct i2c_device_id *id)
> +{
> + struct es8156_priv *es8156;
> + int ret = -1;
> +
> + es8156 = devm_kzalloc(&i2c->dev, sizeof(*es8156), GFP_KERNEL);
> + if (!es8156)
> + return -ENOMEM;
> +
> + es8156->debounce_time = 200;
> + es8156->hp_det_invert = 0;
> + es8156->pwr_count = 0;
> + es8156->hp_inserted = false;
> + es8156->muted = true;
> +
> + es8156->regmap = devm_regmap_init_i2c(i2c, &es8156_regmap_config);
> + if (IS_ERR(es8156->regmap)) {
> + ret = PTR_ERR(es8156->regmap);
> + dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
> + return ret;
> + }
> +
> + i2c_set_clientdata(i2c, es8156);
> +#ifdef HP_DET_FUNTION
> + es8156->spk_ctl_gpio = of_get_named_gpio_flags(np,
> + "spk-con-gpio",
> + 0,
> + &flags);
> + if (es8156->spk_ctl_gpio < 0) {
> + dev_info(&i2c->dev, "Can not read property spk_ctl_gpio\n");
> + es8156->spk_ctl_gpio = INVALID_GPIO;
> + } else {
> + es8156->spk_active_level = !(flags & OF_GPIO_ACTIVE_LOW);
> + ret = devm_gpio_request_one(&i2c->dev, es8156->spk_ctl_gpio,
> + GPIOF_DIR_OUT, NULL);
> + if (ret) {
> + dev_err(&i2c->dev, "Failed to request spk_ctl_gpio\n");
> + return ret;
> + }
> + es8156_enable_spk(es8156, false);
> + }
> +
> + es8156->hp_det_gpio = of_get_named_gpio_flags(np,
> + "hp-det-gpio",
> + 0,
> + &flags);
> + if (es8156->hp_det_gpio < 0) {
> + dev_info(&i2c->dev, "Can not read property hp_det_gpio\n");
> + es8156->hp_det_gpio = INVALID_GPIO;
> + } else {
> + INIT_DELAYED_WORK(&es8156->work, hp_work);
> + es8156->hp_det_invert = !!(flags & OF_GPIO_ACTIVE_LOW);
> + ret = devm_gpio_request_one(&i2c->dev, es8156->hp_det_gpio,
> + GPIOF_IN, "hp det");
> + if (ret < 0)
> + return ret;
> + hp_irq = gpio_to_irq(es8156->hp_det_gpio);
> + ret = devm_request_threaded_irq(&i2c->dev, hp_irq, NULL,
> + es8156_irq_handler,
> + IRQF_TRIGGER_FALLING |
> + IRQF_TRIGGER_RISING |
> + IRQF_ONESHOT,
> + "es8156_interrupt", es8156);
> + if (ret < 0) {
> + dev_err(&i2c->dev, "request_irq failed: %d\n", ret);
> + return ret;
> + }
> +
> + schedule_delayed_work(&es8156->work,
> + msecs_to_jiffies(es8156->debounce_time));
> + }
> +#endif
same, this will be dead code. You have to use a property or a
get_optional helper.
> + ret = snd_soc_register_component(&i2c->dev,
> + &soc_codec_dev_es8156,
> + &es8156_dai, 1);
use devm_?
> +
> + return ret;
> +}
> +
> +static int es8156_i2c_remove(struct i2c_client *client)
> +{
> + snd_soc_unregister_component(&client->dev);
> +
> + return 0;
> +}
can be removed if devm is used above.
> +
> +static void es8156_i2c_shutdown(struct i2c_client *client)
> +{
> + struct es8156_priv *es8156 = i2c_get_clientdata(client);
> +
> + if (es8156_codec != NULL) {
> + es8156_enable_spk(es8156, false);
> + msleep(20);
> + es8156_set_bias_level(es8156_codec, SND_SOC_BIAS_OFF);
> + }
unclear shutdown and remove use difference sequences? Isn't this not
needed when removing the driver?
> +MODULE_DESCRIPTION("ASoC es8156 driver");
> +MODULE_AUTHOR("Will <pengxiaoxin@everset-semi.com>");
you would definitively need a Signed-off-by from this author.
> +MODULE_AUTHOR("Shumin Chen <chenshumin86@sina.com>");
> +MODULE_LICENSE("GPL");
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 1/2] ASoC: add ES8156 codec driver
2021-12-10 15:53 ` [PATCH 1/2] ASoC: add ES8156 codec driver Pierre-Louis Bossart
@ 2021-12-10 16:29 ` Mark Brown
0 siblings, 0 replies; 5+ messages in thread
From: Mark Brown @ 2021-12-10 16:29 UTC (permalink / raw)
To: Pierre-Louis Bossart
Cc: Shumin Chen, perex, tiwai, lgirdwood, alsa-devel, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1079 bytes --]
On Fri, Dec 10, 2021 at 09:53:39AM -0600, Pierre-Louis Bossart wrote:
> On 12/10/21 9:10 AM, Shumin Chen wrote:
> > +static int es8156_resume(struct snd_soc_component *codec)
> > +{
> > + return 0;
> es8156_set_bias_level(codec, SND_SOC_BIAS_ON);
> for symmetry with suspend?
Shouldn't be _ON since we're resuming so there should be no running
audio - _STANDBY would be more normal.
> > +static int es8156_probe(struct snd_soc_component *codec)
> > +{
> > + struct es8156_priv *es8156 = snd_soc_component_get_drvdata(codec);
> > + int ret = 0;
> > +
> > + es8156_codec = codec;
> > +
> > +#if MCLK
> > + es8156->mclk = devm_clk_get(codec->dev, "mclk");
> > + if (PTR_ERR(es8156->mclk) == -EPROBE_DEFER)
> > + return -EPROBE_DEFER;
> > + ret = clk_prepare_enable(es8156->mclk);
> > +#endif
> Unclear how MCLK will be enabled in a build, did you mean
> es8156->mclk = devm_clk_get_optional(codec->dev, "mclk");
Please also move all resource acquisition to the I2C level probe, that
means we don't get the card trying to instantiate repeatedly while the
CODEC isn't ready.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 2/2] ASoC: convert Everest ES8156 binding to yaml
[not found] ` <20211210151041.108751-3-chenshumin86@sina.com>
@ 2021-12-10 16:29 ` Pierre-Louis Bossart
2021-12-10 16:47 ` Mark Brown
1 sibling, 0 replies; 5+ messages in thread
From: Pierre-Louis Bossart @ 2021-12-10 16:29 UTC (permalink / raw)
To: Shumin Chen, perex, tiwai, lgirdwood, broonie
Cc: alsa-devel, linux-kernel, Rob Herring, devicetree
On 12/10/21 9:10 AM, Shumin Chen wrote:
> This patch converts Everest Semiconductor ES8156 low power audio
> CODEC binding to DT schema.
this doesn't really convert anything but *adds* properties for ES8156.
You're probably missing the device tree folks, added Rob + device tree
mailing list in CC:
>
> Signed-off-by: Shumin Chen <chenshumin86@sina.com>
> ---
> .../bindings/sound/everest,es8156.yaml | 49 +++++++++++++++++++
> 1 file changed, 49 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/everest,es8156.yaml
>
> diff --git a/Documentation/devicetree/bindings/sound/everest,es8156.yaml b/Documentation/devicetree/bindings/sound/everest,es8156.yaml
> new file mode 100644
> index 000000000000..695d542013c2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/everest,es8156.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/everest,es8156.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Everest ES8156 audio CODEC
> +
> +maintainers:
> + - Shumin Chen <chenshumin86@sina.com>
> +
> +properties:
> + compatible:
> + const: everest,es8156
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: clock for master clock (MCLK)
> +
> + clock-names:
> + items:
> + - const: mclk
> +
> + "#sound-dai-cells":
> + const: 0
> +
> +required:
> + - compatible
> + - reg
> + - "#sound-dai-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + i2c0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + es8156: codec@8 {
> + compatible = "everest,es8156";
> + reg = <0x11>;
> + clocks = <&clks 10>;
> + clock-names = "mclk";
> + #sound-dai-cells = <0>;
> + };
> + };
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 2/2] ASoC: convert Everest ES8156 binding to yaml
[not found] ` <20211210151041.108751-3-chenshumin86@sina.com>
2021-12-10 16:29 ` [PATCH 2/2] ASoC: convert Everest ES8156 binding to yaml Pierre-Louis Bossart
@ 2021-12-10 16:47 ` Mark Brown
1 sibling, 0 replies; 5+ messages in thread
From: Mark Brown @ 2021-12-10 16:47 UTC (permalink / raw)
To: Shumin Chen; +Cc: perex, tiwai, lgirdwood, linux-kernel, alsa-devel
[-- Attachment #1: Type: text/plain, Size: 305 bytes --]
On Fri, Dec 10, 2021 at 11:10:41PM +0800, Shumin Chen wrote:
> +properties:
> + compatible:
> + const: everest,es8156
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: clock for master clock (MCLK)
This was optional in the code but is mandatory in the binding.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 1/2] ASoC: add ES8156 codec driver
[not found] ` <20211210151041.108751-2-chenshumin86@sina.com>
2021-12-10 15:53 ` [PATCH 1/2] ASoC: add ES8156 codec driver Pierre-Louis Bossart
@ 2021-12-10 17:32 ` kernel test robot
1 sibling, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-12-10 17:32 UTC (permalink / raw)
To: Shumin Chen, perex, tiwai, lgirdwood, broonie
Cc: kbuild-all, alsa-devel, linux-kernel, Shumin Chen
Hi Shumin,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on broonie-sound/for-next]
[also build test WARNING on v5.16-rc4 next-20211208]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Shumin-Chen/This-patches-provide-ASoc-codec-support-for-ES8156/20211210-231527
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: x86_64-buildonly-randconfig-r003-20211210 (https://download.01.org/0day-ci/archive/20211211/202112110101.i4FDNZ9c-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/4ea33be548d361d7097073473fb018e016091622
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Shumin-Chen/This-patches-provide-ASoc-codec-support-for-ES8156/20211210-231527
git checkout 4ea33be548d361d7097073473fb018e016091622
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash sound/soc/codecs/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> sound/soc/codecs/es8156.c:402:5: warning: no previous prototype for 'es8156_headset_detect' [-Wmissing-prototypes]
402 | int es8156_headset_detect(int jack_insert)
| ^~~~~~~~~~~~~~~~~~~~~
sound/soc/codecs/es8156.c:421:13: warning: 'hp_work' defined but not used [-Wunused-function]
421 | static void hp_work(struct work_struct *work)
| ^~~~~~~
sound/soc/codecs/es8156.c:386:20: warning: 'es8156_irq_handler' defined but not used [-Wunused-function]
386 | static irqreturn_t es8156_irq_handler(int irq, void *data)
| ^~~~~~~~~~~~~~~~~~
vim +/es8156_headset_detect +402 sound/soc/codecs/es8156.c
395
396 /*
397 * Call from rk_headset_irq_hook_adc.c
398 *
399 * Enable micbias for HOOK detection and disable external Amplifier
400 * when jack insertion.
401 */
> 402 int es8156_headset_detect(int jack_insert)
403 {
404 struct es8156_priv *es8156;
405
406 if (!es8156_codec)
407 return -1;
408
409 es8156 = snd_soc_component_get_drvdata(es8156_codec);
410
411 es8156->hp_inserted = jack_insert;
412
413 /* enable micbias and disable PA */
414 if (jack_insert)
415 es8156_enable_spk(es8156, false);
416
417 return 0;
418 }
419 EXPORT_SYMBOL(es8156_headset_detect);
420
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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2021-12-10 15:53 ` [PATCH 1/2] ASoC: add ES8156 codec driver Pierre-Louis Bossart
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