ASoC: max98363: add soundwire amplifier driver
Added Analog Devices MAX98363 SoundWire Amplifier Driver. The MAX98363 is a SoundWire peripheral device that supports MIPI SoundWire v1.2-compatible digital interface for audio and control data. Signed-off-by: Ryan Lee <ryans.lee@analog.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230330234319.6841-1-ryan.lee.analog@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
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@ -133,6 +133,7 @@ config SND_SOC_ALL_CODECS
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imply SND_SOC_MAX98925
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imply SND_SOC_MAX98926
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imply SND_SOC_MAX98927
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imply SND_SOC_MAX98363
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imply SND_SOC_MAX98373_I2C
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imply SND_SOC_MAX98373_SDW
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imply SND_SOC_MAX98390
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@ -1133,6 +1134,16 @@ config SND_SOC_MAX98520
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To compile this driver as a module, choose M here.
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config SND_SOC_MAX98363
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tristate "Analog Devices MAX98363 Soundwire Speaker Amplifier"
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depends on SOUNDWIRE
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select REGMAP_SOUNDWIRE
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help
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Enable support for Analog Devices MAX98363 Soundwire
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amplifier. MAX98363 supports the MIPI SoundWire v1.2
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compatible interface for audio and control data.
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This amplifier does not support I2C and I2S.
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config SND_SOC_MAX98373
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tristate
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@ -148,6 +148,7 @@ snd-soc-max98925-objs := max98925.o
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snd-soc-max98926-objs := max98926.o
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snd-soc-max98927-objs := max98927.o
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snd-soc-max98520-objs := max98520.o
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snd-soc-max98363-objs := max98363.o
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snd-soc-max98373-objs := max98373.o
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snd-soc-max98373-i2c-objs := max98373-i2c.o
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snd-soc-max98373-sdw-objs := max98373-sdw.o
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@ -515,6 +516,7 @@ obj-$(CONFIG_SND_SOC_MAX98925) += snd-soc-max98925.o
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obj-$(CONFIG_SND_SOC_MAX98926) += snd-soc-max98926.o
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obj-$(CONFIG_SND_SOC_MAX98927) += snd-soc-max98927.o
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obj-$(CONFIG_SND_SOC_MAX98520) += snd-soc-max98520.o
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obj-$(CONFIG_SND_SOC_MAX98363) += snd-soc-max98363.o
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obj-$(CONFIG_SND_SOC_MAX98373) += snd-soc-max98373.o
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obj-$(CONFIG_SND_SOC_MAX98373_I2C) += snd-soc-max98373-i2c.o
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obj-$(CONFIG_SND_SOC_MAX98373_SDW) += snd-soc-max98373-sdw.o
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464
sound/soc/codecs/max98363.c
Normal file
464
sound/soc/codecs/max98363.c
Normal file
@ -0,0 +1,464 @@
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// SPDX-License-Identifier: GPL-2.0-only
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// Copyright (c) 2022, Analog Devices Inc.
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#include <linux/module.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/soundwire/sdw.h>
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#include <linux/soundwire/sdw_registers.h>
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#include <linux/soundwire/sdw_type.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#include "max98363.h"
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static struct reg_default max98363_reg[] = {
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{MAX98363_R2001_INTR_RAW, 0x0},
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{MAX98363_R2003_INTR_STATE, 0x0},
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{MAX98363_R2005_INTR_FALG, 0x0},
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{MAX98363_R2007_INTR_EN, 0x0},
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{MAX98363_R2009_INTR_CLR, 0x0},
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{MAX98363_R2021_ERR_MON_CTRL, 0x0},
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{MAX98363_R2022_SPK_MON_THRESH, 0x0},
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{MAX98363_R2023_SPK_MON_DURATION, 0x0},
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{MAX98363_R2030_TONE_GEN_CFG, 0x0},
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{MAX98363_R203F_TONE_GEN_EN, 0x0},
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{MAX98363_R2040_AMP_VOL, 0x0},
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{MAX98363_R2041_AMP_GAIN, 0x5},
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{MAX98363_R2042_DSP_CFG, 0x0},
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{MAX98363_R21FF_REV_ID, 0x0},
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};
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static bool max98363_readable_register(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case MAX98363_R2001_INTR_RAW:
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case MAX98363_R2003_INTR_STATE:
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case MAX98363_R2005_INTR_FALG:
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case MAX98363_R2007_INTR_EN:
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case MAX98363_R2009_INTR_CLR:
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case MAX98363_R2021_ERR_MON_CTRL ... MAX98363_R2023_SPK_MON_DURATION:
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case MAX98363_R2030_TONE_GEN_CFG:
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case MAX98363_R203F_TONE_GEN_EN:
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case MAX98363_R2040_AMP_VOL:
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case MAX98363_R2041_AMP_GAIN:
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case MAX98363_R2042_DSP_CFG:
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case MAX98363_R21FF_REV_ID:
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return true;
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default:
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return false;
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}
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};
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static bool max98363_volatile_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case MAX98363_R2001_INTR_RAW:
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case MAX98363_R2003_INTR_STATE:
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case MAX98363_R2005_INTR_FALG:
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case MAX98363_R2007_INTR_EN:
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case MAX98363_R2009_INTR_CLR:
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case MAX98363_R21FF_REV_ID:
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return true;
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default:
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return false;
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}
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}
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static const struct regmap_config max98363_sdw_regmap = {
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.reg_bits = 32,
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.val_bits = 8,
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.max_register = MAX98363_R21FF_REV_ID,
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.reg_defaults = max98363_reg,
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.num_reg_defaults = ARRAY_SIZE(max98363_reg),
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.readable_reg = max98363_readable_register,
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.volatile_reg = max98363_volatile_reg,
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.cache_type = REGCACHE_RBTREE,
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.use_single_read = true,
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.use_single_write = true,
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};
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static int max98363_suspend(struct device *dev)
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{
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struct max98363_priv *max98363 = dev_get_drvdata(dev);
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regcache_cache_only(max98363->regmap, true);
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regcache_mark_dirty(max98363->regmap);
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return 0;
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}
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#define MAX98363_PROBE_TIMEOUT 5000
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static int max98363_resume(struct device *dev)
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{
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struct sdw_slave *slave = dev_to_sdw_dev(dev);
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struct max98363_priv *max98363 = dev_get_drvdata(dev);
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unsigned long time;
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if (!max98363->first_hw_init)
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return 0;
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if (!slave->unattach_request)
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goto regmap_sync;
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time = wait_for_completion_timeout(&slave->initialization_complete,
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msecs_to_jiffies(MAX98363_PROBE_TIMEOUT));
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if (!time) {
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dev_err(dev, "Initialization not complete, timed out\n");
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return -ETIMEDOUT;
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}
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regmap_sync:
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slave->unattach_request = 0;
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regcache_cache_only(max98363->regmap, false);
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regcache_sync(max98363->regmap);
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return 0;
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}
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static DEFINE_RUNTIME_DEV_PM_OPS(max98363_pm, max98363_suspend, max98363_resume, NULL);
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static int max98363_read_prop(struct sdw_slave *slave)
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{
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struct sdw_slave_prop *prop = &slave->prop;
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int nval, i;
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u32 bit;
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unsigned long addr;
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struct sdw_dpn_prop *dpn;
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prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
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/* BITMAP: 00000010 Dataport 1 is active */
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prop->sink_ports = BIT(1);
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prop->paging_support = true;
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prop->clk_stop_timeout = 20;
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prop->simple_clk_stop_capable = true;
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prop->clock_reg_supported = true;
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nval = hweight32(prop->sink_ports);
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prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
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sizeof(*prop->sink_dpn_prop),
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GFP_KERNEL);
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if (!prop->sink_dpn_prop)
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return -ENOMEM;
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i = 0;
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dpn = prop->sink_dpn_prop;
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addr = prop->sink_ports;
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for_each_set_bit(bit, &addr, 32) {
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dpn[i].num = bit;
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dpn[i].type = SDW_DPN_FULL;
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dpn[i].simple_ch_prep_sm = true;
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dpn[i].ch_prep_timeout = 10;
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i++;
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}
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return 0;
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}
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static int max98363_io_init(struct sdw_slave *slave)
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{
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struct device *dev = &slave->dev;
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struct max98363_priv *max98363 = dev_get_drvdata(dev);
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int ret, reg;
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if (max98363->first_hw_init) {
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regcache_cache_only(max98363->regmap, false);
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regcache_cache_bypass(max98363->regmap, true);
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}
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/*
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* PM runtime is only enabled when a Slave reports as Attached
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*/
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if (!max98363->first_hw_init) {
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/* set autosuspend parameters */
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pm_runtime_set_autosuspend_delay(dev, 3000);
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pm_runtime_use_autosuspend(dev);
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/* update count of parent 'active' children */
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pm_runtime_set_active(dev);
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/* make sure the device does not suspend immediately */
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pm_runtime_mark_last_busy(dev);
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pm_runtime_enable(dev);
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}
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pm_runtime_get_noresume(dev);
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ret = regmap_read(max98363->regmap, MAX98363_R21FF_REV_ID, ®);
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if (!ret) {
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dev_info(dev, "Revision ID: %X\n", reg);
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return ret;
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}
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if (max98363->first_hw_init) {
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regcache_cache_bypass(max98363->regmap, false);
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regcache_mark_dirty(max98363->regmap);
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}
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max98363->first_hw_init = true;
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max98363->hw_init = true;
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pm_runtime_mark_last_busy(dev);
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pm_runtime_put_autosuspend(dev);
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return 0;
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}
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#define MAX98363_RATES SNDRV_PCM_RATE_8000_192000
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#define MAX98363_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
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static int max98363_sdw_dai_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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struct max98363_priv *max98363 =
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snd_soc_component_get_drvdata(component);
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struct sdw_stream_config stream_config;
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struct sdw_port_config port_config;
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enum sdw_data_direction direction;
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struct sdw_stream_runtime *stream;
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struct snd_pcm_runtime *runtime = substream->runtime;
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int ret;
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stream = snd_soc_dai_get_dma_data(dai, substream);
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if (!stream)
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return -EINVAL;
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if (!max98363->slave)
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return -EINVAL;
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if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
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return -EINVAL;
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direction = SDW_DATA_DIR_RX;
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port_config.num = 1;
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stream_config.frame_rate = params_rate(params);
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stream_config.bps = snd_pcm_format_width(params_format(params));
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stream_config.direction = direction;
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stream_config.ch_count = params_channels(params);
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if (stream_config.ch_count > runtime->hw.channels_max) {
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stream_config.ch_count = runtime->hw.channels_max;
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dev_info(dai->dev, "Number of channels: %d (requested: %d)\n",
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stream_config.ch_count, params_channels(params));
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}
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port_config.ch_mask = GENMASK((int)stream_config.ch_count - 1, 0);
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ret = sdw_stream_add_slave(max98363->slave, &stream_config,
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&port_config, 1, stream);
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if (ret) {
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dev_err(dai->dev, "Unable to configure port\n");
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return ret;
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}
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dev_dbg(component->dev, "Format supported %d", params_format(params));
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return 0;
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}
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static int max98363_pcm_hw_free(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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struct max98363_priv *max98363 =
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snd_soc_component_get_drvdata(component);
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struct sdw_stream_runtime *stream =
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snd_soc_dai_get_dma_data(dai, substream);
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if (!max98363->slave)
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return -EINVAL;
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sdw_stream_remove_slave(max98363->slave, stream);
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return 0;
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}
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static int max98363_set_sdw_stream(struct snd_soc_dai *dai,
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void *sdw_stream, int direction)
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{
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snd_soc_dai_dma_data_set(dai, direction, sdw_stream);
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return 0;
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}
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static const struct snd_soc_dai_ops max98363_dai_sdw_ops = {
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.hw_params = max98363_sdw_dai_hw_params,
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.hw_free = max98363_pcm_hw_free,
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.set_stream = max98363_set_sdw_stream,
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};
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static struct snd_soc_dai_driver max98363_dai[] = {
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{
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.name = "max98363-aif1",
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.playback = {
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.stream_name = "HiFi Playback",
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.channels_min = 1,
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.channels_max = 1,
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.rates = MAX98363_RATES,
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.formats = MAX98363_FORMATS,
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},
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.ops = &max98363_dai_sdw_ops,
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}
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};
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static int max98363_update_status(struct sdw_slave *slave,
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enum sdw_slave_status status)
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{
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struct max98363_priv *max98363 = dev_get_drvdata(&slave->dev);
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if (status == SDW_SLAVE_UNATTACHED)
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max98363->hw_init = false;
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/*
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* Perform initialization only if slave status is SDW_SLAVE_ATTACHED
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*/
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if (max98363->hw_init || status != SDW_SLAVE_ATTACHED)
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return 0;
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/* perform I/O transfers required for Slave initialization */
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return max98363_io_init(slave);
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}
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static struct sdw_slave_ops max98363_slave_ops = {
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.read_prop = max98363_read_prop,
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.update_status = max98363_update_status,
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};
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static DECLARE_TLV_DB_SCALE(max98363_digital_tlv, -6350, 50, 1);
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static const DECLARE_TLV_DB_RANGE(max98363_spk_tlv,
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0, 5, TLV_DB_SCALE_ITEM(-300, 300, 0),
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);
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static const char * const max98363_tone_cfg_text[] = {
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"Reserved", "0", "+FS/2", "-FS/2", "1KHz",
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"12KHz", "8KHz", "6KHz", "4KHz", "3KHz",
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"2KHz", "1.5KHz", "Reserved", "500Hz", "250Hz"
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};
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static SOC_ENUM_SINGLE_DECL(max98363_tone_cfg_enum,
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MAX98363_R2030_TONE_GEN_CFG, 0,
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max98363_tone_cfg_text);
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static const char * const max98363_spkmon_duration_text[] = {
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"8ms", "20ms", "40ms", "60ms",
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"80ms", "160ms", "240ms", "320ms",
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"400ms", "480ms", "560ms", "640ms",
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"720ms", "800ms", "880ms", "960ms"
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};
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static SOC_ENUM_SINGLE_DECL(max98363_spkmon_duration_enum,
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MAX98363_R2023_SPK_MON_DURATION, 0,
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max98363_spkmon_duration_text);
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static const struct snd_kcontrol_new max98363_snd_controls[] = {
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SOC_SINGLE_TLV("Digital Volume", MAX98363_R2040_AMP_VOL,
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0, 0x7F, 1, max98363_digital_tlv),
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SOC_SINGLE_TLV("Speaker Volume", MAX98363_R2041_AMP_GAIN,
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0, 10, 0, max98363_spk_tlv),
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SOC_SINGLE("Tone Generator Switch", MAX98363_R203F_TONE_GEN_EN,
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0, 1, 0),
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SOC_ENUM("Tone Config", max98363_tone_cfg_enum),
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SOC_SINGLE("Ramp Switch", MAX98363_R2042_DSP_CFG,
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MAX98363_AMP_DSP_CFG_RMP_SHIFT, 1, 0),
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SOC_SINGLE("CLK Monitor Switch", MAX98363_R2021_ERR_MON_CTRL,
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MAX98363_CLOCK_MON_SHIFT, 1, 0),
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SOC_SINGLE("SPKMON Monitor Switch", MAX98363_R2021_ERR_MON_CTRL,
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MAX98363_SPKMON_SHIFT, 1, 0),
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SOC_SINGLE("SPKMON Thresh", MAX98363_R2022_SPK_MON_THRESH, 0, 0xFF, 0),
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SOC_ENUM("SPKMON Duration", max98363_spkmon_duration_enum),
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};
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|
||||
static const struct snd_soc_dapm_widget max98363_dapm_widgets[] = {
|
||||
SND_SOC_DAPM_AIF_IN("AIFIN", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
|
||||
SND_SOC_DAPM_OUTPUT("BE_OUT"),
|
||||
};
|
||||
|
||||
static const struct snd_soc_dapm_route max98363_audio_map[] = {
|
||||
/* Plabyack */
|
||||
{"BE_OUT", NULL, "AIFIN"},
|
||||
};
|
||||
|
||||
const struct snd_soc_component_driver soc_codec_dev_max98363 = {
|
||||
.controls = max98363_snd_controls,
|
||||
.num_controls = ARRAY_SIZE(max98363_snd_controls),
|
||||
.dapm_widgets = max98363_dapm_widgets,
|
||||
.num_dapm_widgets = ARRAY_SIZE(max98363_dapm_widgets),
|
||||
.dapm_routes = max98363_audio_map,
|
||||
.num_dapm_routes = ARRAY_SIZE(max98363_audio_map),
|
||||
.use_pmdown_time = 1,
|
||||
.endianness = 1,
|
||||
};
|
||||
|
||||
static int max98363_init(struct sdw_slave *slave, struct regmap *regmap)
|
||||
{
|
||||
struct max98363_priv *max98363;
|
||||
int ret;
|
||||
struct device *dev = &slave->dev;
|
||||
|
||||
/* Allocate and assign private driver data structure */
|
||||
max98363 = devm_kzalloc(dev, sizeof(*max98363), GFP_KERNEL);
|
||||
if (!max98363)
|
||||
return -ENOMEM;
|
||||
|
||||
dev_set_drvdata(dev, max98363);
|
||||
max98363->regmap = regmap;
|
||||
max98363->slave = slave;
|
||||
|
||||
max98363->hw_init = false;
|
||||
max98363->first_hw_init = false;
|
||||
|
||||
/* codec registration */
|
||||
ret = devm_snd_soc_register_component(dev, &soc_codec_dev_max98363,
|
||||
max98363_dai,
|
||||
ARRAY_SIZE(max98363_dai));
|
||||
if (ret < 0)
|
||||
dev_err(dev, "Failed to register codec: %d\n", ret);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int max98363_sdw_probe(struct sdw_slave *slave,
|
||||
const struct sdw_device_id *id)
|
||||
{
|
||||
struct regmap *regmap;
|
||||
|
||||
/* Regmap Initialization */
|
||||
regmap = devm_regmap_init_sdw(slave, &max98363_sdw_regmap);
|
||||
if (IS_ERR(regmap))
|
||||
return PTR_ERR(regmap);
|
||||
|
||||
return max98363_init(slave, regmap);
|
||||
}
|
||||
|
||||
static const struct sdw_device_id max98363_id[] = {
|
||||
SDW_SLAVE_ENTRY(0x019F, 0x8363, 0),
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(sdw, max98363_id);
|
||||
|
||||
static struct sdw_driver max98363_sdw_driver = {
|
||||
.driver = {
|
||||
.name = "max98363",
|
||||
.pm = pm_ptr(&max98363_pm),
|
||||
},
|
||||
.probe = max98363_sdw_probe,
|
||||
.ops = &max98363_slave_ops,
|
||||
.id_table = max98363_id,
|
||||
};
|
||||
|
||||
module_sdw_driver(max98363_sdw_driver);
|
||||
|
||||
MODULE_DESCRIPTION("ASoC MAX98363 driver SDW");
|
||||
MODULE_AUTHOR("Ryan Lee <ryans.lee@analog.com>");
|
||||
MODULE_LICENSE("GPL");
|
36
sound/soc/codecs/max98363.h
Normal file
36
sound/soc/codecs/max98363.h
Normal file
@ -0,0 +1,36 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
/* Copyright (c) 2022 Analog Devices Inc. */
|
||||
|
||||
#ifndef _MAX98363_H
|
||||
#define _MAX98363_H
|
||||
|
||||
#define MAX98363_R2000_SW_RESET 0x2000
|
||||
#define MAX98363_R2001_INTR_RAW 0x2001
|
||||
#define MAX98363_R2003_INTR_STATE 0x2003
|
||||
#define MAX98363_R2005_INTR_FALG 0x2005
|
||||
#define MAX98363_R2007_INTR_EN 0x2007
|
||||
#define MAX98363_R2009_INTR_CLR 0x2009
|
||||
#define MAX98363_R2021_ERR_MON_CTRL 0x2021
|
||||
#define MAX98363_R2022_SPK_MON_THRESH 0x2022
|
||||
#define MAX98363_R2023_SPK_MON_DURATION 0x2023
|
||||
#define MAX98363_R2030_TONE_GEN_CFG 0x2030
|
||||
#define MAX98363_R203F_TONE_GEN_EN 0x203F
|
||||
#define MAX98363_R2040_AMP_VOL 0x2040
|
||||
#define MAX98363_R2041_AMP_GAIN 0x2041
|
||||
#define MAX98363_R2042_DSP_CFG 0x2042
|
||||
#define MAX98363_R21FF_REV_ID 0x21FF
|
||||
|
||||
/* MAX98363_R2021_ERR_MON_CTRL */
|
||||
#define MAX98363_SPKMON_SHIFT (3)
|
||||
#define MAX98363_CLOCK_MON_SHIFT (0)
|
||||
|
||||
/* MAX98363_R2042_DSP_CFG */
|
||||
#define MAX98363_AMP_DSP_CFG_RMP_SHIFT (3)
|
||||
|
||||
struct max98363_priv {
|
||||
struct regmap *regmap;
|
||||
struct sdw_slave *slave;
|
||||
bool hw_init;
|
||||
bool first_hw_init;
|
||||
};
|
||||
#endif
|
Loading…
Reference in New Issue
Block a user