60888ef827
In previous commits we cancelled deferred work, but there is still a
window of time where a new interrupt could result in new deferred work
executed after the link is disabled, leading to an IO error.
This patch uses an 'disable_irq_lock' mutex to prevent new interrupts
from happening after the start of the system suspend. The choice of a
mutex v. a spinlock is mainly due to the time required to clear
interrupts, which requires a command to be transmitted by the
SoundWire host IP and acknowledged with an interrupt. The
'interrupt_callback' routine is also not meant to be called from an
interrupt context.
An additional 'disable_irq' flag prevents race conditions where the
status changes before the interrupts are disabled, but the workqueue
handling status changes is scheduled after the completion of the
system suspend. On resume the interrupts are re-enabled already by the
io_init routine so we only clear the flag.
BugLink: https://github.com/thesofproject/linux/issues/2943
Fixes: 5f2df2a458 ('ASoC: rt700: wait for the delayed work to finish when the system suspends')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20210614180815.153711-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
177 lines
5.7 KiB
C
177 lines
5.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* rt700.h -- RT700 ALSA SoC audio driver header
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*
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* Copyright(c) 2019 Realtek Semiconductor Corp.
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*/
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#ifndef __RT700_H__
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#define __RT700_H__
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extern const struct dev_pm_ops rt700_runtime_pm;
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struct rt700_priv {
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struct snd_soc_component *component;
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struct regmap *regmap;
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struct regmap *sdw_regmap;
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struct sdw_slave *slave;
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enum sdw_slave_status status;
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struct sdw_bus_params params;
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bool hw_init;
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bool first_hw_init;
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struct snd_soc_jack *hs_jack;
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struct delayed_work jack_detect_work;
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struct delayed_work jack_btn_check_work;
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int jack_type;
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struct mutex disable_irq_lock; /* imp-def irq lock protection */
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bool disable_irq;
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};
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struct sdw_stream_data {
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struct sdw_stream_runtime *sdw_stream;
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};
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/* NID */
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#define RT700_AUDIO_FUNCTION_GROUP 0x01
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#define RT700_DAC_OUT1 0x02
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#define RT700_DAC_OUT2 0x03
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#define RT700_ADC_IN1 0x09
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#define RT700_ADC_IN2 0x08
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#define RT700_DMIC1 0x12
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#define RT700_DMIC2 0x13
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#define RT700_SPK_OUT 0x14
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#define RT700_MIC2 0x19
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#define RT700_LINE1 0x1a
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#define RT700_LINE2 0x1b
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#define RT700_BEEP 0x1d
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#define RT700_SPDIF 0x1e
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#define RT700_VENDOR_REGISTERS 0x20
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#define RT700_HP_OUT 0x21
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#define RT700_MIXER_IN1 0x22
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#define RT700_MIXER_IN2 0x23
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#define RT700_INLINE_CMD 0x55
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/* Index (NID:20h) */
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#define RT700_DAC_DC_CALI_CTL1 0x00
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#define RT700_PARA_VERB_CTL 0x1a
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#define RT700_COMBO_JACK_AUTO_CTL1 0x45
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#define RT700_COMBO_JACK_AUTO_CTL2 0x46
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#define RT700_INLINE_CMD_CTL 0x48
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#define RT700_DIGITAL_MISC_CTRL4 0x4a
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#define RT700_VREFOUT_CTL 0x6b
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#define RT700_FSM_CTL 0x6f
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#define RT700_IRQ_FLAG_TABLE1 0x80
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#define RT700_IRQ_FLAG_TABLE2 0x81
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#define RT700_IRQ_FLAG_TABLE3 0x82
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/* Verb */
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#define RT700_VERB_SET_CONNECT_SEL 0x3100
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#define RT700_VERB_SET_EAPD_BTLENABLE 0x3c00
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#define RT700_VERB_GET_CONNECT_SEL 0xb100
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#define RT700_VERB_SET_POWER_STATE 0x3500
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#define RT700_VERB_SET_CHANNEL_STREAMID 0x3600
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#define RT700_VERB_SET_PIN_WIDGET_CONTROL 0x3700
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#define RT700_VERB_SET_UNSOLICITED_ENABLE 0x3800
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#define RT700_SET_AMP_GAIN_MUTE_H 0x7300
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#define RT700_SET_AMP_GAIN_MUTE_L 0x8380
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#define RT700_VERB_GET_PIN_SENSE 0xb900
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#define RT700_READ_HDA_3 0x2012
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#define RT700_READ_HDA_2 0x2013
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#define RT700_READ_HDA_1 0x2014
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#define RT700_READ_HDA_0 0x2015
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#define RT700_PRIV_INDEX_W_H 0x7520
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#define RT700_PRIV_INDEX_W_L 0x85a0
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#define RT700_PRIV_DATA_W_H 0x7420
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#define RT700_PRIV_DATA_W_L 0x84a0
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#define RT700_PRIV_INDEX_R_H 0x9d20
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#define RT700_PRIV_INDEX_R_L 0xada0
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#define RT700_PRIV_DATA_R_H 0x9c20
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#define RT700_PRIV_DATA_R_L 0xaca0
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#define RT700_DAC_FORMAT_H 0x7203
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#define RT700_DAC_FORMAT_L 0x8283
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#define RT700_ADC_FORMAT_H 0x7209
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#define RT700_ADC_FORMAT_L 0x8289
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#define RT700_SET_AUDIO_POWER_STATE\
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(RT700_VERB_SET_POWER_STATE | RT700_AUDIO_FUNCTION_GROUP)
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#define RT700_SET_PIN_DMIC1\
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(RT700_VERB_SET_PIN_WIDGET_CONTROL | RT700_DMIC1)
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#define RT700_SET_PIN_DMIC2\
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(RT700_VERB_SET_PIN_WIDGET_CONTROL | RT700_DMIC2)
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#define RT700_SET_PIN_SPK\
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(RT700_VERB_SET_PIN_WIDGET_CONTROL | RT700_SPK_OUT)
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#define RT700_SET_PIN_HP\
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(RT700_VERB_SET_PIN_WIDGET_CONTROL | RT700_HP_OUT)
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#define RT700_SET_PIN_MIC2\
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(RT700_VERB_SET_PIN_WIDGET_CONTROL | RT700_MIC2)
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#define RT700_SET_PIN_LINE1\
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(RT700_VERB_SET_PIN_WIDGET_CONTROL | RT700_LINE1)
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#define RT700_SET_PIN_LINE2\
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(RT700_VERB_SET_PIN_WIDGET_CONTROL | RT700_LINE2)
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#define RT700_SET_MIC2_UNSOLICITED_ENABLE\
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(RT700_VERB_SET_UNSOLICITED_ENABLE | RT700_MIC2)
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#define RT700_SET_HP_UNSOLICITED_ENABLE\
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(RT700_VERB_SET_UNSOLICITED_ENABLE | RT700_HP_OUT)
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#define RT700_SET_INLINE_UNSOLICITED_ENABLE\
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(RT700_VERB_SET_UNSOLICITED_ENABLE | RT700_INLINE_CMD)
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#define RT700_SET_STREAMID_DAC1\
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(RT700_VERB_SET_CHANNEL_STREAMID | RT700_DAC_OUT1)
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#define RT700_SET_STREAMID_DAC2\
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(RT700_VERB_SET_CHANNEL_STREAMID | RT700_DAC_OUT2)
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#define RT700_SET_STREAMID_ADC1\
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(RT700_VERB_SET_CHANNEL_STREAMID | RT700_ADC_IN1)
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#define RT700_SET_STREAMID_ADC2\
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(RT700_VERB_SET_CHANNEL_STREAMID | RT700_ADC_IN2)
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#define RT700_SET_GAIN_DAC1_L\
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(RT700_SET_AMP_GAIN_MUTE_L | RT700_DAC_OUT1)
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#define RT700_SET_GAIN_DAC1_H\
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(RT700_SET_AMP_GAIN_MUTE_H | RT700_DAC_OUT1)
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#define RT700_SET_GAIN_ADC1_L\
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(RT700_SET_AMP_GAIN_MUTE_L | RT700_ADC_IN1)
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#define RT700_SET_GAIN_ADC1_H\
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(RT700_SET_AMP_GAIN_MUTE_H | RT700_ADC_IN1)
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#define RT700_SET_GAIN_ADC2_L\
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(RT700_SET_AMP_GAIN_MUTE_L | RT700_ADC_IN2)
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#define RT700_SET_GAIN_ADC2_H\
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(RT700_SET_AMP_GAIN_MUTE_H | RT700_ADC_IN2)
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#define RT700_SET_GAIN_AMIC_L\
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(RT700_SET_AMP_GAIN_MUTE_L | RT700_MIC2)
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#define RT700_SET_GAIN_AMIC_H\
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(RT700_SET_AMP_GAIN_MUTE_H | RT700_MIC2)
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#define RT700_SET_GAIN_HP_L\
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(RT700_SET_AMP_GAIN_MUTE_L | RT700_HP_OUT)
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#define RT700_SET_GAIN_HP_H\
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(RT700_SET_AMP_GAIN_MUTE_H | RT700_HP_OUT)
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#define RT700_SET_GAIN_SPK_L\
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(RT700_SET_AMP_GAIN_MUTE_L | RT700_SPK_OUT)
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#define RT700_SET_GAIN_SPK_H\
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(RT700_SET_AMP_GAIN_MUTE_H | RT700_SPK_OUT)
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#define RT700_SET_EAPD_SPK\
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(RT700_VERB_SET_EAPD_BTLENABLE | RT700_SPK_OUT)
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/* combo jack auto switch control 2 (0x46)(NID:20h) */
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#define RT700_COMBOJACK_AUTO_DET_STATUS (0x1 << 11)
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#define RT700_COMBOJACK_AUTO_DET_TRS (0x1 << 10)
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#define RT700_COMBOJACK_AUTO_DET_CTIA (0x1 << 9)
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#define RT700_COMBOJACK_AUTO_DET_OMTP (0x1 << 8)
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#define RT700_EAPD_HIGH 0x2
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#define RT700_EAPD_LOW 0x0
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#define RT700_MUTE_SFT 7
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#define RT700_DIR_IN_SFT 6
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#define RT700_DIR_OUT_SFT 7
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enum {
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RT700_AIF1,
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RT700_AIF2,
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RT700_AIFS,
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};
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int rt700_io_init(struct device *dev, struct sdw_slave *slave);
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int rt700_init(struct device *dev, struct regmap *sdw_regmap,
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struct regmap *regmap, struct sdw_slave *slave);
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int rt700_jack_detect(struct rt700_priv *rt700, bool *hp, bool *mic);
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int rt700_clock_config(struct device *dev);
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#endif /* __RT700_H__ */
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