Hi,
On 12.12.2019 15:09, Marek Szyprowski wrote:
> Hi,
>
> On 28.11.2019 16:19, Tzung-Bi Shih wrote:
>> According to the datasheet, there are some registers can only be changed
>> when SHDN is 0. Changing these settings during SHDN = 1 can compromise
>> device stability and performance specifications.
>>
>> Saves SHDN before writing to these sensitive registers and restores SHDN
>> afterward.
>>
>> Here is the register list codec driver of max98090 wants to change:
>> M98090_REG_QUICK_SYSTEM_CLOCK 0x04
>> M98090_REG_QUICK_SAMPLE_RATE 0x05
>> M98090_REG_DAI_INTERFACE 0x06
>> M98090_REG_DAC_PATH 0x07
>> M98090_REG_MIC_DIRECT_TO_ADC 0x08
>> M98090_REG_LINE_TO_ADC 0x09
>> M98090_REG_ANALOG_MIC_LOOP 0x0A
>> M98090_REG_ANALOG_LINE_LOOP 0x0B
>> M98090_REG_SYSTEM_CLOCK 0x1B
>> M98090_REG_CLOCK_MODE 0x1C
>> M98090_REG_CLOCK_RATIO_NI_MSB 0x1D
>> M98090_REG_CLOCK_RATIO_NI_LSB 0x1E
>> M98090_REG_CLOCK_RATIO_MI_MSB 0x1F
>> M98090_REG_CLOCK_RATIO_MI_LSB 0x20
>> M98090_REG_MASTER_MODE 0x21
>> M98090_REG_INTERFACE_FORMAT 0x22
>> M98090_REG_TDM_CONTROL 0x23
>> M98090_REG_TDM_FORMAT 0x24
>> M98090_REG_IO_CONFIGURATION 0x25
>> M98090_REG_FILTER_CONFIG 0x26
>> M98090_REG_INPUT_ENABLE 0x3E
>> M98090_REG_OUTPUT_ENABLE 0x3F
>> M98090_REG_BIAS_CONTROL 0x42
>> M98090_REG_DAC_CONTROL 0x43
>> M98090_REG_ADC_CONTROL 0x44
>> M98090_REG_DRC_TIMING 0x33
>> M98090_REG_DRC_COMPRESSOR 0x34
>> M98090_REG_DRC_EXPANDER 0x35
>> M98090_REG_DSP_FILTER_ENABLE 0x41
>> M98090_REG_EQUALIZER_BASE 0x46
>> M98090_REG_RECORD_BIQUAD_BASE 0xAF
>> M98090_REG_DIGITAL_MIC_ENABLE 0x13
>> M98090_REG_DIGITAL_MIC_CONFIG 0x14
>>
>> Signed-off-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
>
> Today I've noticed that this patch got merged to linux-next as commit
> 62d5ae4cafb7ffeeec6ba2dd1814cafeeea7dd8f. Sadly it breaks codec
> operation on some Samsung Exynos SoC based boards: Odroid U3, XU, XU3
> and Chromebook Peach-Pit/Pi. I get the following errors during boot:
>
> ======================================================
> WARNING: possible circular locking dependency detected
> 5.5.0-rc1-next-20191212 #86 Not tainted
> ------------------------------------------------------
> alsactl/265 is trying to acquire lock:
> eda820f4 (&card->dapm_mutex){+.+.}, at: max98090_shdn_save+0x1c/0x28
>
> but task is already holding lock:
> eda5249c (&card->controls_rwsem){++++}, at: snd_ctl_ioctl+0xcc/0xbb8
>
> which lock already depends on the new lock.
>
>
> the existing dependency chain (in reverse order) is:
> dwmmc_exynos 12200000.mmc: Unexpected interrupt latency
>
> -> #1 (&card->controls_rwsem){++++}:
> snd_ctl_add_replace+0x3c/0x84
> dapm_create_or_share_kcontrol+0x24c/0x2e0
> snd_soc_dapm_new_widgets+0x308/0x594
> snd_soc_bind_card+0x80c/0xac8
> devm_snd_soc_register_card+0x34/0x6c
> asoc_simple_probe+0x244/0x4a0
> platform_drv_probe+0x6c/0xa4
> really_probe+0x200/0x490
> driver_probe_device+0x78/0x1f8
> bus_for_each_drv+0x74/0xb8
> __device_attach+0xd4/0x16c
> bus_probe_device+0x88/0x90
> deferred_probe_work_func+0x3c/0xd0
> process_one_work+0x22c/0x7c4
> worker_thread+0x44/0x524
> kthread+0x130/0x164
> ret_from_fork+0x14/0x20
> 0x0
>
> -> #0 (&card->dapm_mutex){+.+.}:
> lock_acquire+0xe8/0x270
> __mutex_lock+0x9c/0xb18
> mutex_lock_nested+0x1c/0x24
> max98090_shdn_save+0x1c/0x28
> max98090_put_enum_double+0x20/0x40
> snd_ctl_ioctl+0x190/0xbb8
> do_vfs_ioctl+0xb0/0xab0
> ksys_ioctl+0x34/0x5c
> ret_fast_syscall+0x0/0x28
> 0xbe9094dc
>
> other info that might help us debug this:
>
> Possible unsafe locking scenario:
>
> CPU0 CPU1
> ---- ----
> lock(&card->controls_rwsem);
> lock(&card->dapm_mutex);
> lock(&card->controls_rwsem);
> lock(&card->dapm_mutex);
>
> *** DEADLOCK ***
>
> 1 lock held by alsactl/265:
> #0: eda5249c (&card->controls_rwsem){++++}, at: snd_ctl_ioctl+0xcc/0xbb8
>
> stack backtrace:
> CPU: 0 PID: 265 Comm: alsactl Not tainted 5.5.0-rc1-next-20191212 #86
> Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
> [<c0112570>] (unwind_backtrace) from [<c010e05c>] (show_stack+0x10/0x14)
> [<c010e05c>] (show_stack) from [<c0b1f15c>] (dump_stack+0xb4/0xe0)
> [<c0b1f15c>] (dump_stack) from [<c0189eac>]
> (check_noncircular+0x1ec/0x208)
> [<c0189eac>] (check_noncircular) from [<c018c2c8>]
> (__lock_acquire+0x1210/0x25ec)
> [<c018c2c8>] (__lock_acquire) from [<c018dfc4>] (lock_acquire+0xe8/0x270)
> [<c018dfc4>] (lock_acquire) from [<c0b3fc30>] (__mutex_lock+0x9c/0xb18)
> [<c0b3fc30>] (__mutex_lock) from [<c0b406c8>]
> (mutex_lock_nested+0x1c/0x24)
> [<c0b406c8>] (mutex_lock_nested) from [<c0833988>]
> (max98090_shdn_save+0x1c/0x28)
> [<c0833988>] (max98090_shdn_save) from [<c0834404>]
> (max98090_put_enum_double+0x20/0x40)
> [<c0834404>] (max98090_put_enum_double) from [<c0807970>]
> (snd_ctl_ioctl+0x190/0xbb8)
> [<c0807970>] (snd_ctl_ioctl) from [<c02ca0bc>] (do_vfs_ioctl+0xb0/0xab0)
> [<c02ca0bc>] (do_vfs_ioctl) from [<c02caaf0>] (ksys_ioctl+0x34/0x5c)
> [<c02caaf0>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
> Exception stack(0xec471fa8 to 0xec471ff0)
> ...
>
> 8<--- cut here ---
> Unable to handle kernel NULL pointer dereference at virtual address
> 000000b0
> pgd = (ptrval)
> [000000b0] *pgd=00000000
> Internal error: Oops: 5 [#1] PREEMPT SMP ARM
> Modules linked in:
> CPU: 0 PID: 265 Comm: alsactl Not tainted 5.5.0-rc1-next-20191212 #86
> Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
> PC is at __mutex_lock+0x54/0xb18
> LR is at ___might_sleep+0x3c/0x2e0
> pc : [<c0b3fbe8>] lr : [<c01585a8>] psr: 60000013
> sp : ec471e00 ip : e85b2e05 fp : eda8b280
> r10: eda52464 r9 : eda52000 r8 : be909618
> r7 : c1916644 r6 : 00000000 r5 : 00000000 r4 : 00000080
> r3 : 00000000 r2 : 00400000 r1 : 000003aa r0 : 00000000
> Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
> Control: 10c5387d Table: 6c62c06a DAC: 00000051
> Process alsactl (pid: 265, stack limit = 0x(ptrval))
> Stack: (0xec471e00 to 0xec472000)
> ...
> [<c0b3fbe8>] (__mutex_lock) from [<c0b406c8>]
> (mutex_lock_nested+0x1c/0x24)
> [<c0b406c8>] (mutex_lock_nested) from [<c0833988>]
> (max98090_shdn_save+0x1c/0x28)
> [<c0833988>] (max98090_shdn_save) from [<c0834344>]
> (max98090_dapm_put_enum_double+0x20/0x40)
> [<c0834344>] (max98090_dapm_put_enum_double) from [<c0807970>]
> (snd_ctl_ioctl+0x190/0xbb8)
> [<c0807970>] (snd_ctl_ioctl) from [<c02ca0bc>] (do_vfs_ioctl+0xb0/0xab0)
> [<c02ca0bc>] (do_vfs_ioctl) from [<c02caaf0>] (ksys_ioctl+0x34/0x5c)
> [<c02caaf0>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
> Exception stack(0xec471fa8 to 0xec471ff0)
> 1fa0: 00000001 00000000 00000003 c2c85513 be909618
> 00472620
> 1fc0: 00000001 00000000 00000002 00000036 00000002 be909510 00000003
> be90996c
> 1fe0: b6f487c4 be9094dc b6e8d3a0 b6cda79c
> Code: ebd8631b e5973000 e3530000 1a000002 (e5943030)
> ---[ end trace 376d2de2786690d7 ]---
>
> The only strange thing is that Chromebook Snow, which also use this
> codec boots fine.
>
>> ---
>> This patch is a follow up fix for the question:
>> https://mailman.alsa-project.org/pipermail/alsa-devel/2019-October/157364.html
>>
>>
>> Changes from v1:
>> https://mailman.alsa-project.org/pipermail/alsa-devel/2019-November/158855.html
>>
>> - fix a typo in commit message
>> - rebase to the latest for-next (a few line numbers changed)
>>
>> sound/soc/codecs/max98090.c | 433 ++++++++++++++++++++++++++----------
>> sound/soc/codecs/max98090.h | 3 +-
>> 2 files changed, 312 insertions(+), 124 deletions(-)
>>
>> diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
>> index e46b6ada13b1..da23810f958e 100644
>> --- a/sound/soc/codecs/max98090.c
>> +++ b/sound/soc/codecs/max98090.c
>> @@ -5,24 +5,149 @@
>> * Copyright 2011-2012 Maxim Integrated Products
>> */
>> +#include <linux/acpi.h>
>> +#include <linux/clk.h>
>> #include <linux/delay.h>
>> #include <linux/i2c.h>
>> #include <linux/module.h>
>> +#include <linux/mutex.h>
>> #include <linux/of.h>
>> #include <linux/pm.h>
>> #include <linux/pm_runtime.h>
>> #include <linux/regmap.h>
>> #include <linux/slab.h>
>> -#include <linux/acpi.h>
>> -#include <linux/clk.h>
>> #include <sound/jack.h>
>> +#include <sound/max98090.h>
>> #include <sound/pcm.h>
>> #include <sound/pcm_params.h>
>> #include <sound/soc.h>
>> #include <sound/tlv.h>
>> -#include <sound/max98090.h>
>> #include "max98090.h"
>> +static void max98090_shdn_save_locked(struct max98090_priv *max98090)
>> +{
>> + int shdn = 0;
>> +
>> + /* saved_shdn, saved_count, SHDN are protected by
>> card->dapm_mutex */
>> + regmap_read(max98090->regmap, M98090_REG_DEVICE_SHUTDOWN, &shdn);
>> + max98090->saved_shdn |= shdn;
>> + ++max98090->saved_count;
>> +
>> + if (shdn)
>> + regmap_write(max98090->regmap, M98090_REG_DEVICE_SHUTDOWN,
>> 0x0);
>> +}
>> +
>> +static void max98090_shdn_restore_locked(struct max98090_priv
>> *max98090)
>> +{
>> + /* saved_shdn, saved_count, SHDN are protected by
>> card->dapm_mutex */
>> + if (--max98090->saved_count == 0) {
>> + if (max98090->saved_shdn) {
>> + regmap_write(max98090->regmap,
>> + M98090_REG_DEVICE_SHUTDOWN,
>> + M98090_SHDNN_MASK);
>> + max98090->saved_shdn = 0;
>> + }
>> + }
>> +}
>> +
>> +static void max98090_shdn_save(struct max98090_priv *max98090)
>> +{
>> + mutex_lock(&max98090->component->card->dapm_mutex);
The NULL pointer dereference demonstrated above is caused by
max98090->component->card being NULL here. Adding a simple != NULL check
here and in the max98090_shdn_restore() function fixes the boot issue,
although the deplock warning is still there. The question is that is the
max98090->component->card being NULL is a normal case or something that
needs further analysis.
>> + max98090_shdn_save_locked(max98090);
>> +}
>> +
>> +static void max98090_shdn_restore(struct max98090_priv *max98090)
>> +{
>> + max98090_shdn_restore_locked(max98090);
>> + mutex_unlock(&max98090->component->card->dapm_mutex);
>> +}
>> +
>> +static int max98090_put_volsw(struct snd_kcontrol *kcontrol,
>> + struct snd_ctl_elem_value *ucontrol)
>> +{
>> + struct snd_soc_component *component =
>> + snd_soc_kcontrol_component(kcontrol);
>> + struct max98090_priv *max98090 =
>> + snd_soc_component_get_drvdata(component);
>> + int ret;
>> +
>> + max98090_shdn_save(max98090);
>> + ret = snd_soc_put_volsw(kcontrol, ucontrol);
>> + max98090_shdn_restore(max98090);
>> +
>> + return ret;
>> +}
>> +
>> +static int max98090_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
>> + struct snd_ctl_elem_value *ucontrol)
>> +{
>> + struct snd_soc_component *component =
>> + snd_soc_kcontrol_component(kcontrol);
>> + struct max98090_priv *max98090 =
>> + snd_soc_component_get_drvdata(component);
>> + int ret;
>> +
>> + max98090_shdn_save(max98090);
>> + ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
>> + max98090_shdn_restore(max98090);
>> +
>> + return ret;
>> +}
>> +
>> +static int max98090_put_enum_double(struct snd_kcontrol *kcontrol,
>> + struct snd_ctl_elem_value *ucontrol)
>> +{
>> + struct snd_soc_component *component =
>> + snd_soc_kcontrol_component(kcontrol);
>> + struct max98090_priv *max98090 =
>> + snd_soc_component_get_drvdata(component);
>> + int ret;
>> +
>> + max98090_shdn_save(max98090);
>> + ret = snd_soc_put_enum_double(kcontrol, ucontrol);
>> + max98090_shdn_restore(max98090);
>> +
>> + return ret;
>> +}
>> +
>> +static int max98090_bytes_put(struct snd_kcontrol *kcontrol,
>> + struct snd_ctl_elem_value *ucontrol)
>> +{
>> + struct snd_soc_component *component =
>> + snd_soc_kcontrol_component(kcontrol);
>> + struct max98090_priv *max98090 =
>> + snd_soc_component_get_drvdata(component);
>> + int ret;
>> +
>> + max98090_shdn_save(max98090);
>> + ret = snd_soc_bytes_put(kcontrol, ucontrol);
>> + max98090_shdn_restore(max98090);
>> +
>> + return ret;
>> +}
>> +
>> +static int max98090_dapm_event(struct snd_soc_dapm_widget *w,
>> + struct snd_kcontrol *kcontrol, int event)
>> +{
>> + struct snd_soc_component *component =
>> + snd_soc_dapm_to_component(w->dapm);
>> + struct max98090_priv *max98090 =
>> + snd_soc_component_get_drvdata(component);
>> +
>> + switch (event) {
>> + case SND_SOC_DAPM_PRE_PMU:
>> + case SND_SOC_DAPM_PRE_PMD:
>> + max98090_shdn_save_locked(max98090);
>> + break;
>> + case SND_SOC_DAPM_POST_PMU:
>> + case SND_SOC_DAPM_POST_PMD:
>> + max98090_shdn_restore_locked(max98090);
>> + break;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> /* Allows for sparsely populated register maps */
>> static const struct reg_default max98090_reg[] = {
>> { 0x00, 0x00 }, /* 00 Software Reset */
>> @@ -506,10 +631,13 @@ static SOC_ENUM_SINGLE_DECL(max98090_adchp_enum,
>> max98090_pwr_perf_text);
>> static const struct snd_kcontrol_new max98090_snd_controls[] = {
>> - SOC_ENUM("MIC Bias VCM Bandgap", max98090_vcmbandgap_enum),
>> + SOC_ENUM_EXT("MIC Bias VCM Bandgap", max98090_vcmbandgap_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> - SOC_SINGLE("DMIC MIC Comp Filter Config",
>> M98090_REG_DIGITAL_MIC_CONFIG,
>> - M98090_DMIC_COMP_SHIFT, M98090_DMIC_COMP_NUM - 1, 0),
>> + SOC_SINGLE_EXT("DMIC MIC Comp Filter Config",
>> + M98090_REG_DIGITAL_MIC_CONFIG,
>> + M98090_DMIC_COMP_SHIFT, M98090_DMIC_COMP_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> SOC_SINGLE_EXT_TLV("MIC1 Boost Volume",
>> M98090_REG_MIC1_INPUT_LEVEL, M98090_MIC_PA1EN_SHIFT,
>> @@ -564,24 +692,34 @@ static const struct snd_kcontrol_new
>> max98090_snd_controls[] = {
>> M98090_AVR_SHIFT, M98090_AVR_NUM - 1, 1,
>> max98090_av_tlv),
>> - SOC_ENUM("ADC Oversampling Rate", max98090_osr128_enum),
>> - SOC_SINGLE("ADC Quantizer Dither", M98090_REG_ADC_CONTROL,
>> - M98090_ADCDITHER_SHIFT, M98090_ADCDITHER_NUM - 1, 0),
>> - SOC_ENUM("ADC High Performance Mode", max98090_adchp_enum),
>> -
>> - SOC_SINGLE("DAC Mono Mode", M98090_REG_IO_CONFIGURATION,
>> - M98090_DMONO_SHIFT, M98090_DMONO_NUM - 1, 0),
>> - SOC_SINGLE("SDIN Mode", M98090_REG_IO_CONFIGURATION,
>> - M98090_SDIEN_SHIFT, M98090_SDIEN_NUM - 1, 0),
>> - SOC_SINGLE("SDOUT Mode", M98090_REG_IO_CONFIGURATION,
>> - M98090_SDOEN_SHIFT, M98090_SDOEN_NUM - 1, 0),
>> - SOC_SINGLE("SDOUT Hi-Z Mode", M98090_REG_IO_CONFIGURATION,
>> - M98090_HIZOFF_SHIFT, M98090_HIZOFF_NUM - 1, 1),
>> - SOC_ENUM("Filter Mode", max98090_mode_enum),
>> - SOC_SINGLE("Record Path DC Blocking", M98090_REG_FILTER_CONFIG,
>> - M98090_AHPF_SHIFT, M98090_AHPF_NUM - 1, 0),
>> - SOC_SINGLE("Playback Path DC Blocking", M98090_REG_FILTER_CONFIG,
>> - M98090_DHPF_SHIFT, M98090_DHPF_NUM - 1, 0),
>> + SOC_ENUM_EXT("ADC Oversampling Rate", max98090_osr128_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> + SOC_SINGLE_EXT("ADC Quantizer Dither", M98090_REG_ADC_CONTROL,
>> + M98090_ADCDITHER_SHIFT, M98090_ADCDITHER_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_ENUM_EXT("ADC High Performance Mode", max98090_adchp_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> +
>> + SOC_SINGLE_EXT("DAC Mono Mode", M98090_REG_IO_CONFIGURATION,
>> + M98090_DMONO_SHIFT, M98090_DMONO_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_SINGLE_EXT("SDIN Mode", M98090_REG_IO_CONFIGURATION,
>> + M98090_SDIEN_SHIFT, M98090_SDIEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_SINGLE_EXT("SDOUT Mode", M98090_REG_IO_CONFIGURATION,
>> + M98090_SDOEN_SHIFT, M98090_SDOEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_SINGLE_EXT("SDOUT Hi-Z Mode", M98090_REG_IO_CONFIGURATION,
>> + M98090_HIZOFF_SHIFT, M98090_HIZOFF_NUM - 1, 1,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_ENUM_EXT("Filter Mode", max98090_mode_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> + SOC_SINGLE_EXT("Record Path DC Blocking", M98090_REG_FILTER_CONFIG,
>> + M98090_AHPF_SHIFT, M98090_AHPF_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_SINGLE_EXT("Playback Path DC Blocking",
>> M98090_REG_FILTER_CONFIG,
>> + M98090_DHPF_SHIFT, M98090_DHPF_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> SOC_SINGLE_TLV("Digital BQ Volume", M98090_REG_ADC_BIQUAD_LEVEL,
>> M98090_AVBQ_SHIFT, M98090_AVBQ_NUM - 1, 1, max98090_dv_tlv),
>> SOC_SINGLE_EXT_TLV("Digital Sidetone Volume",
>> @@ -594,13 +732,17 @@ static const struct snd_kcontrol_new
>> max98090_snd_controls[] = {
>> SOC_SINGLE_TLV("Digital Volume", M98090_REG_DAI_PLAYBACK_LEVEL,
>> M98090_DV_SHIFT, M98090_DV_NUM - 1, 1,
>> max98090_dv_tlv),
>> - SND_SOC_BYTES("EQ Coefficients", M98090_REG_EQUALIZER_BASE, 105),
>> - SOC_SINGLE("Digital EQ 3 Band Switch",
>> M98090_REG_DSP_FILTER_ENABLE,
>> - M98090_EQ3BANDEN_SHIFT, M98090_EQ3BANDEN_NUM - 1, 0),
>> - SOC_SINGLE("Digital EQ 5 Band Switch",
>> M98090_REG_DSP_FILTER_ENABLE,
>> - M98090_EQ5BANDEN_SHIFT, M98090_EQ5BANDEN_NUM - 1, 0),
>> - SOC_SINGLE("Digital EQ 7 Band Switch",
>> M98090_REG_DSP_FILTER_ENABLE,
>> - M98090_EQ7BANDEN_SHIFT, M98090_EQ7BANDEN_NUM - 1, 0),
>> + SND_SOC_BYTES_E("EQ Coefficients", M98090_REG_EQUALIZER_BASE, 105,
>> + snd_soc_bytes_get, max98090_bytes_put),
>> + SOC_SINGLE_EXT("Digital EQ 3 Band Switch",
>> M98090_REG_DSP_FILTER_ENABLE,
>> + M98090_EQ3BANDEN_SHIFT, M98090_EQ3BANDEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_SINGLE_EXT("Digital EQ 5 Band Switch",
>> M98090_REG_DSP_FILTER_ENABLE,
>> + M98090_EQ5BANDEN_SHIFT, M98090_EQ5BANDEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_SINGLE_EXT("Digital EQ 7 Band Switch",
>> M98090_REG_DSP_FILTER_ENABLE,
>> + M98090_EQ7BANDEN_SHIFT, M98090_EQ7BANDEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> SOC_SINGLE("Digital EQ Clipping Detection",
>> M98090_REG_DAI_PLAYBACK_LEVEL_EQ,
>> M98090_EQCLPN_SHIFT, M98090_EQCLPN_NUM - 1,
>> 1),
>> @@ -608,25 +750,34 @@ static const struct snd_kcontrol_new
>> max98090_snd_controls[] = {
>> M98090_DVEQ_SHIFT, M98090_DVEQ_NUM - 1, 1,
>> max98090_dv_tlv),
>> - SOC_SINGLE("ALC Enable", M98090_REG_DRC_TIMING,
>> - M98090_DRCEN_SHIFT, M98090_DRCEN_NUM - 1, 0),
>> - SOC_ENUM("ALC Attack Time", max98090_drcatk_enum),
>> - SOC_ENUM("ALC Release Time", max98090_drcrls_enum),
>> + SOC_SINGLE_EXT("ALC Enable", M98090_REG_DRC_TIMING,
>> + M98090_DRCEN_SHIFT, M98090_DRCEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> + SOC_ENUM_EXT("ALC Attack Time", max98090_drcatk_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> + SOC_ENUM_EXT("ALC Release Time", max98090_drcrls_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> SOC_SINGLE_TLV("ALC Make Up Volume", M98090_REG_DRC_GAIN,
>> M98090_DRCG_SHIFT, M98090_DRCG_NUM - 1, 0,
>> max98090_alcmakeup_tlv),
>> - SOC_ENUM("ALC Compression Ratio", max98090_alccmp_enum),
>> - SOC_ENUM("ALC Expansion Ratio", max98090_drcexp_enum),
>> - SOC_SINGLE_TLV("ALC Compression Threshold Volume",
>> + SOC_ENUM_EXT("ALC Compression Ratio", max98090_alccmp_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> + SOC_ENUM_EXT("ALC Expansion Ratio", max98090_drcexp_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> + SOC_SINGLE_EXT_TLV("ALC Compression Threshold Volume",
>> M98090_REG_DRC_COMPRESSOR, M98090_DRCTHC_SHIFT,
>> - M98090_DRCTHC_NUM - 1, 1, max98090_alccomp_tlv),
>> - SOC_SINGLE_TLV("ALC Expansion Threshold Volume",
>> + M98090_DRCTHC_NUM - 1, 1,
>> + snd_soc_get_volsw, max98090_put_volsw, max98090_alccomp_tlv),
>> + SOC_SINGLE_EXT_TLV("ALC Expansion Threshold Volume",
>> M98090_REG_DRC_EXPANDER, M98090_DRCTHE_SHIFT,
>> - M98090_DRCTHE_NUM - 1, 1, max98090_drcexp_tlv),
>> + M98090_DRCTHE_NUM - 1, 1,
>> + snd_soc_get_volsw, max98090_put_volsw, max98090_drcexp_tlv),
>> - SOC_ENUM("DAC HP Playback Performance Mode",
>> - max98090_dac_perfmode_enum),
>> - SOC_ENUM("DAC High Performance Mode", max98090_dachp_enum),
>> + SOC_ENUM_EXT("DAC HP Playback Performance Mode",
>> + max98090_dac_perfmode_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> + SOC_ENUM_EXT("DAC High Performance Mode", max98090_dachp_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> SOC_SINGLE_TLV("Headphone Left Mixer Volume",
>> M98090_REG_HP_CONTROL, M98090_MIXHPLG_SHIFT,
>> @@ -684,9 +835,12 @@ static const struct snd_kcontrol_new
>> max98090_snd_controls[] = {
>> SOC_SINGLE("Volume Adjustment Smoothing",
>> M98090_REG_LEVEL_CONTROL,
>> M98090_VSENN_SHIFT, M98090_VSENN_NUM - 1, 1),
>> - SND_SOC_BYTES("Biquad Coefficients",
>> M98090_REG_RECORD_BIQUAD_BASE, 15),
>> - SOC_SINGLE("Biquad Switch", M98090_REG_DSP_FILTER_ENABLE,
>> - M98090_ADCBQEN_SHIFT, M98090_ADCBQEN_NUM - 1, 0),
>> + SND_SOC_BYTES_E("Biquad Coefficients",
>> + M98090_REG_RECORD_BIQUAD_BASE, 15,
>> + snd_soc_bytes_get, max98090_bytes_put),
>> + SOC_SINGLE_EXT("Biquad Switch", M98090_REG_DSP_FILTER_ENABLE,
>> + M98090_ADCBQEN_SHIFT, M98090_ADCBQEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> };
>> static const struct snd_kcontrol_new max98091_snd_controls[] = {
>> @@ -695,10 +849,12 @@ static const struct snd_kcontrol_new
>> max98091_snd_controls[] = {
>> M98090_DMIC34_ZEROPAD_SHIFT,
>> M98090_DMIC34_ZEROPAD_NUM - 1, 0),
>> - SOC_ENUM("Filter DMIC34 Mode", max98090_filter_dmic34mode_enum),
>> - SOC_SINGLE("DMIC34 DC Blocking", M98090_REG_FILTER_CONFIG,
>> + SOC_ENUM_EXT("Filter DMIC34 Mode", max98090_filter_dmic34mode_enum,
>> + snd_soc_get_enum_double, max98090_put_enum_double),
>> + SOC_SINGLE_EXT("DMIC34 DC Blocking", M98090_REG_FILTER_CONFIG,
>> M98090_FLT_DMIC34HPF_SHIFT,
>> - M98090_FLT_DMIC34HPF_NUM - 1, 0),
>> + M98090_FLT_DMIC34HPF_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> SOC_SINGLE_TLV("DMIC3 Boost Volume", M98090_REG_DMIC3_VOLUME,
>> M98090_DMIC_AV3G_SHIFT, M98090_DMIC_AV3G_NUM - 1, 0,
>> @@ -716,8 +872,9 @@ static const struct snd_kcontrol_new
>> max98091_snd_controls[] = {
>> SND_SOC_BYTES("DMIC34 Biquad Coefficients",
>> M98090_REG_DMIC34_BIQUAD_BASE, 15),
>> - SOC_SINGLE("DMIC34 Biquad Switch", M98090_REG_DSP_FILTER_ENABLE,
>> - M98090_DMIC34BQEN_SHIFT, M98090_DMIC34BQEN_NUM - 1, 0),
>> + SOC_SINGLE_EXT("DMIC34 Biquad Switch",
>> M98090_REG_DSP_FILTER_ENABLE,
>> + M98090_DMIC34BQEN_SHIFT, M98090_DMIC34BQEN_NUM - 1, 0,
>> + snd_soc_get_volsw, max98090_put_volsw),
>> SOC_SINGLE_TLV("DMIC34 BQ PreAttenuation Volume",
>> M98090_REG_DMIC34_BQ_PREATTEN, M98090_AV34BQ_SHIFT,
>> @@ -771,19 +928,6 @@ static int max98090_micinput_event(struct
>> snd_soc_dapm_widget *w,
>> return 0;
>> }
>> -static int max98090_shdn_event(struct snd_soc_dapm_widget *w,
>> - struct snd_kcontrol *kcontrol, int event)
>> -{
>> - struct snd_soc_component *component =
>> snd_soc_dapm_to_component(w->dapm);
>> - struct max98090_priv *max98090 =
>> snd_soc_component_get_drvdata(component);
>> -
>> - if (event & SND_SOC_DAPM_POST_PMU)
>> - max98090->shdn_pending = true;
>> -
>> - return 0;
>> -
>> -}
>> -
>> static const char *mic1_mux_text[] = { "IN12", "IN56" };
>> static SOC_ENUM_SINGLE_DECL(mic1_mux_enum,
>> @@ -884,10 +1028,14 @@ static SOC_ENUM_SINGLE_DECL(ltenr_mux_enum,
>> lten_mux_text);
>> static const struct snd_kcontrol_new max98090_ltenl_mux =
>> - SOC_DAPM_ENUM("LTENL Mux", ltenl_mux_enum);
>> + SOC_DAPM_ENUM_EXT("LTENL Mux", ltenl_mux_enum,
>> + snd_soc_dapm_get_enum_double,
>> + max98090_dapm_put_enum_double);
>> static const struct snd_kcontrol_new max98090_ltenr_mux =
>> - SOC_DAPM_ENUM("LTENR Mux", ltenr_mux_enum);
>> + SOC_DAPM_ENUM_EXT("LTENR Mux", ltenr_mux_enum,
>> + snd_soc_dapm_get_enum_double,
>> + max98090_dapm_put_enum_double);
>> static const char *lben_mux_text[] = { "Normal", "Loopback" };
>> @@ -902,10 +1050,14 @@ static SOC_ENUM_SINGLE_DECL(lbenr_mux_enum,
>> lben_mux_text);
>> static const struct snd_kcontrol_new max98090_lbenl_mux =
>> - SOC_DAPM_ENUM("LBENL Mux", lbenl_mux_enum);
>> + SOC_DAPM_ENUM_EXT("LBENL Mux", lbenl_mux_enum,
>> + snd_soc_dapm_get_enum_double,
>> + max98090_dapm_put_enum_double);
>> static const struct snd_kcontrol_new max98090_lbenr_mux =
>> - SOC_DAPM_ENUM("LBENR Mux", lbenr_mux_enum);
>> + SOC_DAPM_ENUM_EXT("LBENR Mux", lbenr_mux_enum,
>> + snd_soc_dapm_get_enum_double,
>> + max98090_dapm_put_enum_double);
>> static const char *stenl_mux_text[] = { "Normal", "Sidetone Left" };
>> @@ -1072,21 +1224,25 @@ static const struct snd_soc_dapm_widget
>> max98090_dapm_widgets[] = {
>> SND_SOC_DAPM_INPUT("IN56"),
>> SND_SOC_DAPM_SUPPLY("MICBIAS", M98090_REG_INPUT_ENABLE,
>> - M98090_MBEN_SHIFT, 0, NULL, 0),
>> + M98090_MBEN_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_SUPPLY("SHDN", M98090_REG_DEVICE_SHUTDOWN,
>> M98090_SHDNN_SHIFT, 0, NULL, 0),
>> SND_SOC_DAPM_SUPPLY("SDIEN", M98090_REG_IO_CONFIGURATION,
>> - M98090_SDIEN_SHIFT, 0, NULL, 0),
>> + M98090_SDIEN_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_SUPPLY("SDOEN", M98090_REG_IO_CONFIGURATION,
>> - M98090_SDOEN_SHIFT, 0, NULL, 0),
>> + M98090_SDOEN_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_SUPPLY("DMICL_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
>> - M98090_DIGMICL_SHIFT, 0, max98090_shdn_event,
>> - SND_SOC_DAPM_POST_PMU),
>> + M98090_DIGMICL_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_SUPPLY("DMICR_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
>> - M98090_DIGMICR_SHIFT, 0, max98090_shdn_event,
>> - SND_SOC_DAPM_POST_PMU),
>> + M98090_DIGMICR_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_SUPPLY("AHPF", M98090_REG_FILTER_CONFIG,
>> - M98090_AHPF_SHIFT, 0, NULL, 0),
>> + M98090_AHPF_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> /*
>> * Note: Sysclk and misc power supplies are taken care of by SHDN
>> @@ -1116,10 +1272,12 @@ static const struct snd_soc_dapm_widget
>> max98090_dapm_widgets[] = {
>> &max98090_lineb_mixer_controls[0],
>> ARRAY_SIZE(max98090_lineb_mixer_controls)),
>> - SND_SOC_DAPM_PGA("LINEA Input", M98090_REG_INPUT_ENABLE,
>> - M98090_LINEAEN_SHIFT, 0, NULL, 0),
>> - SND_SOC_DAPM_PGA("LINEB Input", M98090_REG_INPUT_ENABLE,
>> - M98090_LINEBEN_SHIFT, 0, NULL, 0),
>> + SND_SOC_DAPM_PGA_E("LINEA Input", M98090_REG_INPUT_ENABLE,
>> + M98090_LINEAEN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> + SND_SOC_DAPM_PGA_E("LINEB Input", M98090_REG_INPUT_ENABLE,
>> + M98090_LINEBEN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_MIXER("Left ADC Mixer", SND_SOC_NOPM, 0, 0,
>> &max98090_left_adc_mixer_controls[0],
>> @@ -1130,11 +1288,11 @@ static const struct snd_soc_dapm_widget
>> max98090_dapm_widgets[] = {
>> ARRAY_SIZE(max98090_right_adc_mixer_controls)),
>> SND_SOC_DAPM_ADC_E("ADCL", NULL, M98090_REG_INPUT_ENABLE,
>> - M98090_ADLEN_SHIFT, 0, max98090_shdn_event,
>> - SND_SOC_DAPM_POST_PMU),
>> + M98090_ADLEN_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_ADC_E("ADCR", NULL, M98090_REG_INPUT_ENABLE,
>> - M98090_ADREN_SHIFT, 0, max98090_shdn_event,
>> - SND_SOC_DAPM_POST_PMU),
>> + M98090_ADREN_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_AIF_OUT("AIFOUTL", "HiFi Capture", 0,
>> SND_SOC_NOPM, 0, 0),
>> @@ -1162,10 +1320,12 @@ static const struct snd_soc_dapm_widget
>> max98090_dapm_widgets[] = {
>> SND_SOC_DAPM_AIF_IN("AIFINL", "HiFi Playback", 0, SND_SOC_NOPM,
>> 0, 0),
>> SND_SOC_DAPM_AIF_IN("AIFINR", "HiFi Playback", 1, SND_SOC_NOPM,
>> 0, 0),
>> - SND_SOC_DAPM_DAC("DACL", NULL, M98090_REG_OUTPUT_ENABLE,
>> - M98090_DALEN_SHIFT, 0),
>> - SND_SOC_DAPM_DAC("DACR", NULL, M98090_REG_OUTPUT_ENABLE,
>> - M98090_DAREN_SHIFT, 0),
>> + SND_SOC_DAPM_DAC_E("DACL", NULL, M98090_REG_OUTPUT_ENABLE,
>> + M98090_DALEN_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> + SND_SOC_DAPM_DAC_E("DACR", NULL, M98090_REG_OUTPUT_ENABLE,
>> + M98090_DAREN_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0,
>> &max98090_left_hp_mixer_controls[0],
>> @@ -1200,20 +1360,26 @@ static const struct snd_soc_dapm_widget
>> max98090_dapm_widgets[] = {
>> SND_SOC_DAPM_MUX("MIXHPRSEL Mux", SND_SOC_NOPM, 0, 0,
>> &max98090_mixhprsel_mux),
>> - SND_SOC_DAPM_PGA("HP Left Out", M98090_REG_OUTPUT_ENABLE,
>> - M98090_HPLEN_SHIFT, 0, NULL, 0),
>> - SND_SOC_DAPM_PGA("HP Right Out", M98090_REG_OUTPUT_ENABLE,
>> - M98090_HPREN_SHIFT, 0, NULL, 0),
>> -
>> - SND_SOC_DAPM_PGA("SPK Left Out", M98090_REG_OUTPUT_ENABLE,
>> - M98090_SPLEN_SHIFT, 0, NULL, 0),
>> - SND_SOC_DAPM_PGA("SPK Right Out", M98090_REG_OUTPUT_ENABLE,
>> - M98090_SPREN_SHIFT, 0, NULL, 0),
>> -
>> - SND_SOC_DAPM_PGA("RCV Left Out", M98090_REG_OUTPUT_ENABLE,
>> - M98090_RCVLEN_SHIFT, 0, NULL, 0),
>> - SND_SOC_DAPM_PGA("RCV Right Out", M98090_REG_OUTPUT_ENABLE,
>> - M98090_RCVREN_SHIFT, 0, NULL, 0),
>> + SND_SOC_DAPM_PGA_E("HP Left Out", M98090_REG_OUTPUT_ENABLE,
>> + M98090_HPLEN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> + SND_SOC_DAPM_PGA_E("HP Right Out", M98090_REG_OUTPUT_ENABLE,
>> + M98090_HPREN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> +
>> + SND_SOC_DAPM_PGA_E("SPK Left Out", M98090_REG_OUTPUT_ENABLE,
>> + M98090_SPLEN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> + SND_SOC_DAPM_PGA_E("SPK Right Out", M98090_REG_OUTPUT_ENABLE,
>> + M98090_SPREN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> +
>> + SND_SOC_DAPM_PGA_E("RCV Left Out", M98090_REG_OUTPUT_ENABLE,
>> + M98090_RCVLEN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> + SND_SOC_DAPM_PGA_E("RCV Right Out", M98090_REG_OUTPUT_ENABLE,
>> + M98090_RCVREN_SHIFT, 0, NULL, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_OUTPUT("HPL"),
>> SND_SOC_DAPM_OUTPUT("HPR"),
>> @@ -1228,9 +1394,11 @@ static const struct snd_soc_dapm_widget
>> max98091_dapm_widgets[] = {
>> SND_SOC_DAPM_INPUT("DMIC4"),
>> SND_SOC_DAPM_SUPPLY("DMIC3_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
>> - M98090_DIGMIC3_SHIFT, 0, NULL, 0),
>> + M98090_DIGMIC3_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> SND_SOC_DAPM_SUPPLY("DMIC4_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
>> - M98090_DIGMIC4_SHIFT, 0, NULL, 0),
>> + M98090_DIGMIC4_SHIFT, 0, max98090_dapm_event,
>> + SND_SOC_DAPM_PRE_POST_PMU | SND_SOC_DAPM_PRE_POST_PMD),
>> };
>> static const struct snd_soc_dapm_route max98090_dapm_routes[] = {
>> @@ -1501,6 +1669,11 @@ static void max98090_configure_bclk(struct
>> snd_soc_component *component)
>> return;
>> }
>> + /*
>> + * Master mode: no need to save and restore SHDN for the following
>> + * sensitive registers.
>> + */
>> +
>> /* Check for supported PCLK to LRCLK ratios */
>> for (i = 0; i < ARRAY_SIZE(pclk_rates); i++) {
>> if ((pclk_rates[i] == max98090->sysclk) &&
>> @@ -1587,12 +1760,14 @@ static int max98090_dai_set_fmt(struct
>> snd_soc_dai *codec_dai,
>> switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
>> case SND_SOC_DAIFMT_CBS_CFS:
>> /* Set to slave mode PLL - MAS mode off */
>> + max98090_shdn_save(max98090);
>> snd_soc_component_write(component,
>> M98090_REG_CLOCK_RATIO_NI_MSB, 0x00);
>> snd_soc_component_write(component,
>> M98090_REG_CLOCK_RATIO_NI_LSB, 0x00);
>> snd_soc_component_update_bits(component,
>> M98090_REG_CLOCK_MODE,
>> M98090_USE_M1_MASK, 0);
>> + max98090_shdn_restore(max98090);
>> max98090->master = false;
>> break;
>> case SND_SOC_DAIFMT_CBM_CFM:
>> @@ -1618,7 +1793,9 @@ static int max98090_dai_set_fmt(struct
>> snd_soc_dai *codec_dai,
>> dev_err(component->dev, "DAI clock mode unsupported");
>> return -EINVAL;
>> }
>> + max98090_shdn_save(max98090);
>> snd_soc_component_write(component, M98090_REG_MASTER_MODE,
>> regval);
>> + max98090_shdn_restore(max98090);
>> regval = 0;
>> switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
>> @@ -1663,8 +1840,10 @@ static int max98090_dai_set_fmt(struct
>> snd_soc_dai *codec_dai,
>> if (max98090->tdm_slots > 1)
>> regval ^= M98090_BCI_MASK;
>> + max98090_shdn_save(max98090);
>> snd_soc_component_write(component,
>> M98090_REG_INTERFACE_FORMAT, regval);
>> + max98090_shdn_restore(max98090);
>> }
>> return 0;
>> @@ -1676,6 +1855,7 @@ static int max98090_set_tdm_slot(struct
>> snd_soc_dai *codec_dai,
>> struct snd_soc_component *component = codec_dai->component;
>> struct max98090_priv *max98090 =
>> snd_soc_component_get_drvdata(component);
>> struct max98090_cdata *cdata;
>> +
>> cdata = &max98090->dai[0];
>> if (slots < 0 || slots > 4)
>> @@ -1685,6 +1865,7 @@ static int max98090_set_tdm_slot(struct
>> snd_soc_dai *codec_dai,
>> max98090->tdm_width = slot_width;
>> if (max98090->tdm_slots > 1) {
>> + max98090_shdn_save(max98090);
>> /* SLOTL SLOTR SLOTDLY */
>> snd_soc_component_write(component, M98090_REG_TDM_FORMAT,
>> 0 << M98090_TDM_SLOTL_SHIFT |
>> @@ -1695,6 +1876,7 @@ static int max98090_set_tdm_slot(struct
>> snd_soc_dai *codec_dai,
>> snd_soc_component_update_bits(component,
>> M98090_REG_TDM_CONTROL,
>> M98090_TDM_MASK,
>> M98090_TDM_MASK);
>> + max98090_shdn_restore(max98090);
>> }
>> /*
>> @@ -1894,6 +2076,7 @@ static int max98090_configure_dmic(struct
>> max98090_priv *max98090,
>> dmic_freq = dmic_table[pclk_index].settings[micclk_index].freq;
>> dmic_comp = dmic_table[pclk_index].settings[micclk_index].comp[i];
>> + max98090_shdn_save(max98090);
>> regmap_update_bits(max98090->regmap,
>> M98090_REG_DIGITAL_MIC_ENABLE,
>> M98090_MICCLK_MASK,
>> micclk_index << M98090_MICCLK_SHIFT);
>> @@ -1902,6 +2085,7 @@ static int max98090_configure_dmic(struct
>> max98090_priv *max98090,
>> M98090_DMIC_COMP_MASK | M98090_DMIC_FREQ_MASK,
>> dmic_comp << M98090_DMIC_COMP_SHIFT |
>> dmic_freq << M98090_DMIC_FREQ_SHIFT);
>> + max98090_shdn_restore(max98090);
>> return 0;
>> }
>> @@ -1938,8 +2122,10 @@ static int max98090_dai_hw_params(struct
>> snd_pcm_substream *substream,
>> switch (params_width(params)) {
>> case 16:
>> + max98090_shdn_save(max98090);
>> snd_soc_component_update_bits(component,
>> M98090_REG_INTERFACE_FORMAT,
>> M98090_WS_MASK, 0);
>> + max98090_shdn_restore(max98090);
>> break;
>> default:
>> return -EINVAL;
>> @@ -1950,6 +2136,7 @@ static int max98090_dai_hw_params(struct
>> snd_pcm_substream *substream,
>> cdata->rate = max98090->lrclk;
>> + max98090_shdn_save(max98090);
>> /* Update filter mode */
>> if (max98090->lrclk < 24000)
>> snd_soc_component_update_bits(component,
>> M98090_REG_FILTER_CONFIG,
>> @@ -1965,6 +2152,7 @@ static int max98090_dai_hw_params(struct
>> snd_pcm_substream *substream,
>> else
>> snd_soc_component_update_bits(component,
>> M98090_REG_FILTER_CONFIG,
>> M98090_DHF_MASK, M98090_DHF_MASK);
>> + max98090_shdn_restore(max98090);
>> max98090_configure_dmic(max98090, max98090->dmic_freq,
>> max98090->pclk,
>> max98090->lrclk);
>> @@ -1995,6 +2183,7 @@ static int max98090_dai_set_sysclk(struct
>> snd_soc_dai *dai,
>> * 0x02 (when master clk is 20MHz to 40MHz)..
>> * 0x03 (when master clk is 40MHz to 60MHz)..
>> */
>> + max98090_shdn_save(max98090);
>> if ((freq >= 10000000) && (freq <= 20000000)) {
>> snd_soc_component_write(component, M98090_REG_SYSTEM_CLOCK,
>> M98090_PSCLK_DIV1);
>> @@ -2009,8 +2198,10 @@ static int max98090_dai_set_sysclk(struct
>> snd_soc_dai *dai,
>> max98090->pclk = freq >> 2;
>> } else {
>> dev_err(component->dev, "Invalid master clock frequency\n");
>> + max98090_shdn_restore(max98090);
>> return -EINVAL;
>> }
>> + max98090_shdn_restore(max98090);
>> max98090->sysclk = freq;
>> @@ -2122,10 +2313,12 @@ static void max98090_pll_work(struct
>> max98090_priv *max98090)
>> */
>> /* Toggle shutdown OFF then ON */
>> + mutex_lock(&component->card->dapm_mutex);
>> snd_soc_component_update_bits(component,
>> M98090_REG_DEVICE_SHUTDOWN,
>> M98090_SHDNN_MASK, 0);
>> snd_soc_component_update_bits(component,
>> M98090_REG_DEVICE_SHUTDOWN,
>> M98090_SHDNN_MASK, M98090_SHDNN_MASK);
>> + mutex_unlock(&component->card->dapm_mutex);
>> for (i = 0; i < 10; ++i) {
>> /* Give PLL time to lock */
>> @@ -2448,7 +2641,12 @@ static int max98090_probe(struct
>> snd_soc_component *component)
>> */
>> snd_soc_component_read32(component, M98090_REG_DEVICE_STATUS);
>> - /* High Performance is default */
>> + /*
>> + * SHDN should be 0 at the point, no need to save/restore for the
>> + * following registers.
>> + *
>> + * High Performance is default
>> + */
>> snd_soc_component_update_bits(component, M98090_REG_DAC_CONTROL,
>> M98090_DACHP_MASK,
>> 1 << M98090_DACHP_SHIFT);
>> @@ -2459,7 +2657,12 @@ static int max98090_probe(struct
>> snd_soc_component *component)
>> M98090_ADCHP_MASK,
>> 1 << M98090_ADCHP_SHIFT);
>> - /* Turn on VCM bandgap reference */
>> + /*
>> + * SHDN should be 0 at the point, no need to save/restore for the
>> + * following registers.
>> + *
>> + * Turn on VCM bandgap reference
>> + */
>> snd_soc_component_write(component, M98090_REG_BIAS_CONTROL,
>> M98090_VCM_MODE_MASK);
>> @@ -2491,25 +2694,9 @@ static void max98090_remove(struct
>> snd_soc_component *component)
>> max98090->component = NULL;
>> }
>> -static void max98090_seq_notifier(struct snd_soc_component
>> *component,
>> - enum snd_soc_dapm_type event, int subseq)
>> -{
>> - struct max98090_priv *max98090 =
>> snd_soc_component_get_drvdata(component);
>> -
>> - if (max98090->shdn_pending) {
>> - snd_soc_component_update_bits(component,
>> M98090_REG_DEVICE_SHUTDOWN,
>> - M98090_SHDNN_MASK, 0);
>> - msleep(40);
>> - snd_soc_component_update_bits(component,
>> M98090_REG_DEVICE_SHUTDOWN,
>> - M98090_SHDNN_MASK, M98090_SHDNN_MASK);
>> - max98090->shdn_pending = false;
>> - }
>> -}
>> -
>> static const struct snd_soc_component_driver
>> soc_component_dev_max98090 = {
>> .probe = max98090_probe,
>> .remove = max98090_remove,
>> - .seq_notifier = max98090_seq_notifier,
>> .set_bias_level = max98090_set_bias_level,
>> .idle_bias_on = 1,
>> .use_pmdown_time = 1,
>> diff --git a/sound/soc/codecs/max98090.h b/sound/soc/codecs/max98090.h
>> index a197114b0dad..0a31708b7df7 100644
>> --- a/sound/soc/codecs/max98090.h
>> +++ b/sound/soc/codecs/max98090.h
>> @@ -1539,7 +1539,8 @@ struct max98090_priv {
>> unsigned int pa2en;
>> unsigned int sidetone;
>> bool master;
>> - bool shdn_pending;
>> + int saved_count;
>> + int saved_shdn;
>> };
>> int max98090_mic_detect(struct snd_soc_component *component,
>
> Best regards
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
