The patch

ASoC: codecs: Add jz4725b-codec driver

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From e9d97b05a80f27d5ba7379b108db19b0d93cf267 Mon Sep 17 00:00:00 2001

From: Paul Cercueil paul@crapouillou.net Date: Tue, 5 Feb 2019 00:11:08 -0300 Subject: [PATCH] ASoC: codecs: Add jz4725b-codec driver

Add jz4725b-codec driver to support the internal CODEC found in the JZ4725B SoC from Ingenic.

Signed-off-by: Paul Cercueil paul@crapouillou.net Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/Kconfig | 12 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/jz4725b.c | 599 +++++++++++++++++++++++++++++++++++++ 3 files changed, 613 insertions(+) create mode 100644 sound/soc/codecs/jz4725b.c

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index a15710c8a95f..fec894c725d3 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -90,6 +90,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_INNO_RK3036 select SND_SOC_ISABELLE if I2C select SND_SOC_JZ4740_CODEC + select SND_SOC_JZ4725B_CODEC select SND_SOC_LM4857 if I2C select SND_SOC_LM49453 if I2C select SND_SOC_MAX98088 if I2C @@ -581,6 +582,17 @@ config SND_SOC_JZ4740_CODEC select REGMAP_MMIO tristate

+config SND_SOC_JZ4725B_CODEC + depends on MIPS || COMPILE_TEST + select REGMAP + tristate "Ingenic JZ4725B internal CODEC" + help + Enable support for the internal CODEC found in the JZ4725B SoC + from Ingenic. + + This driver can also be built as a module. If so, the module + will be called snd-soc-jz4725b-codec. + config SND_SOC_L3 tristate

diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 3d7a59761c08..b07dfb5fa700 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -86,6 +86,7 @@ snd-soc-ics43432-objs := ics43432.o snd-soc-inno-rk3036-objs := inno_rk3036.o snd-soc-isabelle-objs := isabelle.o snd-soc-jz4740-codec-objs := jz4740.o +snd-soc-jz4725b-codec-objs := jz4725b.o snd-soc-l3-objs := l3.o snd-soc-lm4857-objs := lm4857.o snd-soc-lm49453-objs := lm49453.o @@ -357,6 +358,7 @@ obj-$(CONFIG_SND_SOC_ICS43432) += snd-soc-ics43432.o obj-$(CONFIG_SND_SOC_INNO_RK3036) += snd-soc-inno-rk3036.o obj-$(CONFIG_SND_SOC_ISABELLE) += snd-soc-isabelle.o obj-$(CONFIG_SND_SOC_JZ4740_CODEC) += snd-soc-jz4740-codec.o +obj-$(CONFIG_SND_SOC_JZ4725B_CODEC) += snd-soc-jz4725b-codec.o obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o obj-$(CONFIG_SND_SOC_LM4857) += snd-soc-lm4857.o obj-$(CONFIG_SND_SOC_LM49453) += snd-soc-lm49453.o diff --git a/sound/soc/codecs/jz4725b.c b/sound/soc/codecs/jz4725b.c new file mode 100644 index 000000000000..e3dba92f30bd --- /dev/null +++ b/sound/soc/codecs/jz4725b.c @@ -0,0 +1,599 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * JZ4725B CODEC driver + * + * Copyright (C) 2019, Paul Cercueil paul@crapouillou.net + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/regmap.h> +#include <linux/clk.h> + +#include <linux/delay.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> +#include <sound/soc.h> +#include <sound/tlv.h> + +#define ICDC_RGADW_OFFSET 0x00 +#define ICDC_RGDATA_OFFSET 0x04 + +/* ICDC internal register access control register(RGADW) */ +#define ICDC_RGADW_RGWR BIT(16) + +#define ICDC_RGADW_RGADDR_OFFSET 8 +#define ICDC_RGADW_RGADDR_MASK GENMASK(14, ICDC_RGADW_RGADDR_OFFSET) + +#define ICDC_RGADW_RGDIN_OFFSET 0 +#define ICDC_RGADW_RGDIN_MASK GENMASK(7, ICDC_RGADW_RGDIN_OFFSET) + +/* ICDC internal register data output register (RGDATA)*/ +#define ICDC_RGDATA_IRQ BIT(8) + +#define ICDC_RGDATA_RGDOUT_OFFSET 0 +#define ICDC_RGDATA_RGDOUT_MASK GENMASK(7, ICDC_RGDATA_RGDOUT_OFFSET) + +/* JZ internal register space */ +enum { + JZ4725B_CODEC_REG_AICR, + JZ4725B_CODEC_REG_CR1, + JZ4725B_CODEC_REG_CR2, + JZ4725B_CODEC_REG_CCR1, + JZ4725B_CODEC_REG_CCR2, + JZ4725B_CODEC_REG_PMR1, + JZ4725B_CODEC_REG_PMR2, + JZ4725B_CODEC_REG_CRR, + JZ4725B_CODEC_REG_ICR, + JZ4725B_CODEC_REG_IFR, + JZ4725B_CODEC_REG_CGR1, + JZ4725B_CODEC_REG_CGR2, + JZ4725B_CODEC_REG_CGR3, + JZ4725B_CODEC_REG_CGR4, + JZ4725B_CODEC_REG_CGR5, + JZ4725B_CODEC_REG_CGR6, + JZ4725B_CODEC_REG_CGR7, + JZ4725B_CODEC_REG_CGR8, + JZ4725B_CODEC_REG_CGR9, + JZ4725B_CODEC_REG_CGR10, + JZ4725B_CODEC_REG_TR1, + JZ4725B_CODEC_REG_TR2, + JZ4725B_CODEC_REG_CR3, + JZ4725B_CODEC_REG_AGC1, + JZ4725B_CODEC_REG_AGC2, + JZ4725B_CODEC_REG_AGC3, + JZ4725B_CODEC_REG_AGC4, + JZ4725B_CODEC_REG_AGC5, +}; + +#define REG_AICR_CONFIG1_OFFSET 0 +#define REG_AICR_CONFIG1_MASK (0xf << REG_AICR_CONFIG1_OFFSET) + +#define REG_CR1_SB_MICBIAS_OFFSET 7 +#define REG_CR1_MONO_OFFSET 6 +#define REG_CR1_DAC_MUTE_OFFSET 5 +#define REG_CR1_HP_DIS_OFFSET 4 +#define REG_CR1_DACSEL_OFFSET 3 +#define REG_CR1_BYPASS_OFFSET 2 + +#define REG_CR2_DAC_DEEMP_OFFSET 7 +#define REG_CR2_DAC_ADWL_OFFSET 5 +#define REG_CR2_DAC_ADWL_MASK (0x3 << REG_CR2_DAC_ADWL_OFFSET) +#define REG_CR2_ADC_ADWL_OFFSET 3 +#define REG_CR2_ADC_ADWL_MASK (0x3 << REG_CR2_ADC_ADWL_OFFSET) +#define REG_CR2_ADC_HPF_OFFSET 2 + +#define REG_CR3_SB_MIC1_OFFSET 7 +#define REG_CR3_SB_MIC2_OFFSET 6 +#define REG_CR3_SIDETONE1_OFFSET 5 +#define REG_CR3_SIDETONE2_OFFSET 4 +#define REG_CR3_MICDIFF_OFFSET 3 +#define REG_CR3_MICSTEREO_OFFSET 2 +#define REG_CR3_INSEL_OFFSET 0 +#define REG_CR3_INSEL_MASK (0x3 << REG_CR3_INSEL_OFFSET) + +#define REG_CCR1_CONFIG4_OFFSET 0 +#define REG_CCR1_CONFIG4_MASK (0xf << REG_CCR1_CONFIG4_OFFSET) + +#define REG_CCR2_DFREQ_OFFSET 4 +#define REG_CCR2_DFREQ_MASK (0xf << REG_CCR2_DFREQ_OFFSET) +#define REG_CCR2_AFREQ_OFFSET 0 +#define REG_CCR2_AFREQ_MASK (0xf << REG_CCR2_AFREQ_OFFSET) + +#define REG_PMR1_SB_DAC_OFFSET 7 +#define REG_PMR1_SB_OUT_OFFSET 6 +#define REG_PMR1_SB_MIX_OFFSET 5 +#define REG_PMR1_SB_ADC_OFFSET 4 +#define REG_PMR1_SB_LIN_OFFSET 3 +#define REG_PMR1_SB_IND_OFFSET 0 + +#define REG_PMR2_LRGI_OFFSET 7 +#define REG_PMR2_RLGI_OFFSET 6 +#define REG_PMR2_LRGOD_OFFSET 5 +#define REG_PMR2_RLGOD_OFFSET 4 +#define REG_PMR2_GIM_OFFSET 3 +#define REG_PMR2_SB_MC_OFFSET 2 +#define REG_PMR2_SB_OFFSET 1 +#define REG_PMR2_SB_SLEEP_OFFSET 0 + +#define REG_IFR_RAMP_UP_DONE_OFFSET 3 +#define REG_IFR_RAMP_DOWN_DONE_OFFSET 2 + +#define REG_CGR1_GODL_OFFSET 4 +#define REG_CGR1_GODL_MASK (0xf << REG_CGR1_GODL_OFFSET) +#define REG_CGR1_GODR_OFFSET 0 +#define REG_CGR1_GODR_MASK (0xf << REG_CGR1_GODR_OFFSET) + +#define REG_CGR2_GO1R_OFFSET 0 +#define REG_CGR2_GO1R_MASK (0x1f << REG_CGR2_GO1R_OFFSET) + +#define REG_CGR3_GO1L_OFFSET 0 +#define REG_CGR3_GO1L_MASK (0x1f << REG_CGR3_GO1L_OFFSET) + +struct jz_icdc { + struct regmap *regmap; + void __iomem *base; + struct clk *clk; +}; + +static const SNDRV_CTL_TLVD_DECLARE_DB_LINEAR(jz4725b_dac_tlv, -2250, 0); +static const SNDRV_CTL_TLVD_DECLARE_DB_LINEAR(jz4725b_line_tlv, -1500, 600); + +static const struct snd_kcontrol_new jz4725b_codec_controls[] = { + SOC_DOUBLE_TLV("Master Playback Volume", + JZ4725B_CODEC_REG_CGR1, + REG_CGR1_GODL_OFFSET, + REG_CGR1_GODR_OFFSET, + 0xf, 1, jz4725b_dac_tlv), + SOC_DOUBLE_R_TLV("Master Capture Volume", + JZ4725B_CODEC_REG_CGR3, + JZ4725B_CODEC_REG_CGR2, + REG_CGR2_GO1R_OFFSET, + 0x1f, 1, jz4725b_line_tlv), + + SOC_SINGLE("Master Playback Switch", JZ4725B_CODEC_REG_CR1, + REG_CR1_DAC_MUTE_OFFSET, 1, 1), + + SOC_SINGLE("Deemphatize Filter Playback Switch", + JZ4725B_CODEC_REG_CR2, + REG_CR2_DAC_DEEMP_OFFSET, 1, 0), + + SOC_SINGLE("High-Pass Filter Capture Switch", + JZ4725B_CODEC_REG_CR2, + REG_CR2_ADC_HPF_OFFSET, 1, 0), +}; + +static const char * const jz4725b_codec_adc_src_texts[] = { + "Mic 1", "Mic 2", "Line In", "Mixer", +}; +static const unsigned int jz4725b_codec_adc_src_values[] = { 0, 1, 2, 3, }; +static const SOC_VALUE_ENUM_SINGLE_DECL(jz4725b_codec_adc_src_enum, + JZ4725B_CODEC_REG_CR3, + REG_CR3_INSEL_OFFSET, + REG_CR3_INSEL_MASK, + jz4725b_codec_adc_src_texts, + jz4725b_codec_adc_src_values); +static const struct snd_kcontrol_new jz4725b_codec_adc_src_ctrl = + SOC_DAPM_ENUM("Route", jz4725b_codec_adc_src_enum); + +static const struct snd_kcontrol_new jz4725b_codec_mixer_controls[] = { + SOC_DAPM_SINGLE("Line In Bypass", JZ4725B_CODEC_REG_CR1, + REG_CR1_BYPASS_OFFSET, 1, 0), +}; + +static int jz4725b_out_stage_enable(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event) +{ + struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm); + struct jz_icdc *icdc = snd_soc_component_get_drvdata(codec); + struct regmap *map = icdc->regmap; + unsigned int val; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return regmap_update_bits(map, JZ4725B_CODEC_REG_IFR, + BIT(REG_IFR_RAMP_UP_DONE_OFFSET), 0); + case SND_SOC_DAPM_POST_PMU: + return regmap_read_poll_timeout(map, JZ4725B_CODEC_REG_IFR, + val, val & BIT(REG_IFR_RAMP_UP_DONE_OFFSET), + 100000, 500000); + case SND_SOC_DAPM_PRE_PMD: + return regmap_update_bits(map, JZ4725B_CODEC_REG_IFR, + BIT(REG_IFR_RAMP_DOWN_DONE_OFFSET), 0); + case SND_SOC_DAPM_POST_PMD: + return regmap_read_poll_timeout(map, JZ4725B_CODEC_REG_IFR, + val, val & BIT(REG_IFR_RAMP_DOWN_DONE_OFFSET), + 100000, 500000); + default: + return -EINVAL; + } +} + +static const struct snd_soc_dapm_widget jz4725b_codec_dapm_widgets[] = { + /* DAC */ + SND_SOC_DAPM_DAC("DAC", "Playback", + JZ4725B_CODEC_REG_PMR1, REG_PMR1_SB_DAC_OFFSET, 1), + + /* ADC */ + SND_SOC_DAPM_ADC("ADC", "Capture", + JZ4725B_CODEC_REG_PMR1, REG_PMR1_SB_ADC_OFFSET, 1), + + SND_SOC_DAPM_MUX("ADC Source", SND_SOC_NOPM, 0, 0, + &jz4725b_codec_adc_src_ctrl), + + /* Mixer */ + SND_SOC_DAPM_MIXER("Mixer", JZ4725B_CODEC_REG_PMR1, + REG_PMR1_SB_MIX_OFFSET, 1, + jz4725b_codec_mixer_controls, + ARRAY_SIZE(jz4725b_codec_mixer_controls)), + SND_SOC_DAPM_MIXER("DAC to Mixer", JZ4725B_CODEC_REG_CR1, + REG_CR1_DACSEL_OFFSET, 0, NULL, 0), + + SND_SOC_DAPM_MIXER("Line In", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_MIXER("HP Out", JZ4725B_CODEC_REG_CR1, + REG_CR1_HP_DIS_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_MIXER("Mic 1", JZ4725B_CODEC_REG_CR3, + REG_CR3_SB_MIC1_OFFSET, 1, NULL, 0), + SND_SOC_DAPM_MIXER("Mic 2", JZ4725B_CODEC_REG_CR3, + REG_CR3_SB_MIC2_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_MIXER_E("Out Stage", JZ4725B_CODEC_REG_PMR1, + REG_PMR1_SB_OUT_OFFSET, 1, NULL, 0, + jz4725b_out_stage_enable, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_MIXER("Mixer to ADC", JZ4725B_CODEC_REG_PMR1, + REG_PMR1_SB_IND_OFFSET, 1, NULL, 0), + + SND_SOC_DAPM_SUPPLY("Mic Bias", JZ4725B_CODEC_REG_CR1, + REG_CR1_SB_MICBIAS_OFFSET, 1, NULL, 0), + + /* Pins */ + SND_SOC_DAPM_INPUT("MIC1P"), + SND_SOC_DAPM_INPUT("MIC1N"), + SND_SOC_DAPM_INPUT("MIC2P"), + SND_SOC_DAPM_INPUT("MIC2N"), + + SND_SOC_DAPM_INPUT("LLINEIN"), + SND_SOC_DAPM_INPUT("RLINEIN"), + + SND_SOC_DAPM_OUTPUT("LHPOUT"), + SND_SOC_DAPM_OUTPUT("RHPOUT"), +}; + +static const struct snd_soc_dapm_route jz4725b_codec_dapm_routes[] = { + {"Mic 1", NULL, "MIC1P"}, + {"Mic 1", NULL, "MIC1N"}, + {"Mic 2", NULL, "MIC2P"}, + {"Mic 2", NULL, "MIC2N"}, + + {"Line In", NULL, "LLINEIN"}, + {"Line In", NULL, "RLINEIN"}, + + {"Mixer", "Line In Bypass", "Line In"}, + {"DAC to Mixer", NULL, "DAC"}, + {"Mixer", NULL, "DAC to Mixer"}, + + {"Mixer to ADC", NULL, "Mixer"}, + {"ADC Source", "Mixer", "Mixer to ADC"}, + {"ADC Source", "Line In", "Line In"}, + {"ADC Source", "Mic 1", "Mic 1"}, + {"ADC Source", "Mic 2", "Mic 2"}, + {"ADC", NULL, "ADC Source"}, + + {"Out Stage", NULL, "Mixer"}, + {"HP Out", NULL, "Out Stage"}, + {"LHPOUT", NULL, "HP Out"}, + {"RHPOUT", NULL, "HP Out"}, +}; + +static int jz4725b_codec_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + struct jz_icdc *icdc = snd_soc_component_get_drvdata(component); + struct regmap *map = icdc->regmap; + + switch (level) { + case SND_SOC_BIAS_ON: + regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2, + BIT(REG_PMR2_SB_SLEEP_OFFSET), 0); + break; + case SND_SOC_BIAS_PREPARE: + /* Enable sound hardware */ + regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2, + BIT(REG_PMR2_SB_OFFSET), 0); + msleep(224); + break; + case SND_SOC_BIAS_STANDBY: + regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2, + BIT(REG_PMR2_SB_SLEEP_OFFSET), + BIT(REG_PMR2_SB_SLEEP_OFFSET)); + break; + case SND_SOC_BIAS_OFF: + regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2, + BIT(REG_PMR2_SB_OFFSET), + BIT(REG_PMR2_SB_OFFSET)); + break; + } + + return 0; +} + +static int jz4725b_codec_dev_probe(struct snd_soc_component *component) +{ + struct jz_icdc *icdc = snd_soc_component_get_drvdata(component); + struct regmap *map = icdc->regmap; + + clk_prepare_enable(icdc->clk); + + /* Write CONFIGn (n=1 to 8) bits. + * The value 0x0f is specified in the datasheet as a requirement. + */ + regmap_write(map, JZ4725B_CODEC_REG_AICR, + 0xf << REG_AICR_CONFIG1_OFFSET); + regmap_write(map, JZ4725B_CODEC_REG_CCR1, + 0x0 << REG_CCR1_CONFIG4_OFFSET); + + return 0; +} + +static void jz4725b_codec_dev_remove(struct snd_soc_component *component) +{ + struct jz_icdc *icdc = snd_soc_component_get_drvdata(component); + + clk_disable_unprepare(icdc->clk); +} + +static const struct snd_soc_component_driver jz4725b_codec = { + .probe = jz4725b_codec_dev_probe, + .remove = jz4725b_codec_dev_remove, + .set_bias_level = jz4725b_codec_set_bias_level, + .controls = jz4725b_codec_controls, + .num_controls = ARRAY_SIZE(jz4725b_codec_controls), + .dapm_widgets = jz4725b_codec_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(jz4725b_codec_dapm_widgets), + .dapm_routes = jz4725b_codec_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(jz4725b_codec_dapm_routes), + .suspend_bias_off = 1, + .use_pmdown_time = 1, +}; + +static const unsigned int jz4725b_codec_sample_rates[] = { + 96000, 48000, 44100, 32000, + 24000, 22050, 16000, 12000, + 11025, 9600, 8000, +}; + +static int jz4725b_codec_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct jz_icdc *icdc = snd_soc_component_get_drvdata(dai->component); + unsigned int rate, bit_width; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + bit_width = 0; + break; + case SNDRV_PCM_FORMAT_S18_3LE: + bit_width = 1; + break; + case SNDRV_PCM_FORMAT_S20_3LE: + bit_width = 2; + break; + case SNDRV_PCM_FORMAT_S24_3LE: + bit_width = 3; + break; + default: + return -EINVAL; + } + + for (rate = 0; rate < ARRAY_SIZE(jz4725b_codec_sample_rates); rate++) { + if (jz4725b_codec_sample_rates[rate] == params_rate(params)) + break; + } + + if (rate == ARRAY_SIZE(jz4725b_codec_sample_rates)) + return -EINVAL; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + regmap_update_bits(icdc->regmap, + JZ4725B_CODEC_REG_CR2, + REG_CR2_DAC_ADWL_MASK, + bit_width << REG_CR2_DAC_ADWL_OFFSET); + + regmap_update_bits(icdc->regmap, + JZ4725B_CODEC_REG_CCR2, + REG_CCR2_DFREQ_MASK, + rate << REG_CCR2_DFREQ_OFFSET); + } else { + regmap_update_bits(icdc->regmap, + JZ4725B_CODEC_REG_CR2, + REG_CR2_ADC_ADWL_MASK, + bit_width << REG_CR2_ADC_ADWL_OFFSET); + + regmap_update_bits(icdc->regmap, + JZ4725B_CODEC_REG_CCR2, + REG_CCR2_AFREQ_MASK, + rate << REG_CCR2_AFREQ_OFFSET); + } + + return 0; +} + +static const struct snd_soc_dai_ops jz4725b_codec_dai_ops = { + .hw_params = jz4725b_codec_hw_params, +}; + +#define JZ_ICDC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \ + SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_3LE) + +static struct snd_soc_dai_driver jz4725b_codec_dai = { + .name = "jz4725b-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = JZ_ICDC_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = JZ_ICDC_FORMATS, + }, + .ops = &jz4725b_codec_dai_ops, +}; + +static bool jz4725b_codec_volatile(struct device *dev, unsigned int reg) +{ + return reg == JZ4725B_CODEC_REG_IFR; +} + +static bool jz4725b_codec_can_access_reg(struct device *dev, unsigned int reg) +{ + return (reg != JZ4725B_CODEC_REG_TR1) && (reg != JZ4725B_CODEC_REG_TR2); +} + +static int jz4725b_codec_io_wait(struct jz_icdc *icdc) +{ + u32 reg; + + return readl_poll_timeout(icdc->base + ICDC_RGADW_OFFSET, reg, + !(reg & ICDC_RGADW_RGWR), 1000, 10000); +} + +static int jz4725b_codec_reg_read(void *context, unsigned int reg, + unsigned int *val) +{ + struct jz_icdc *icdc = context; + unsigned int i; + u32 tmp; + int ret; + + ret = jz4725b_codec_io_wait(icdc); + if (ret) + return ret; + + tmp = readl(icdc->base + ICDC_RGADW_OFFSET); + tmp = (tmp & ~ICDC_RGADW_RGADDR_MASK) + | (reg << ICDC_RGADW_RGADDR_OFFSET); + writel(tmp, icdc->base + ICDC_RGADW_OFFSET); + + /* wait 6+ cycles */ + for (i = 0; i < 6; i++) + *val = readl(icdc->base + ICDC_RGDATA_OFFSET) & + ICDC_RGDATA_RGDOUT_MASK; + + return 0; +} + +static int jz4725b_codec_reg_write(void *context, unsigned int reg, + unsigned int val) +{ + struct jz_icdc *icdc = context; + int ret; + + ret = jz4725b_codec_io_wait(icdc); + if (ret) + return ret; + + writel(ICDC_RGADW_RGWR | (reg << ICDC_RGADW_RGADDR_OFFSET) | val, + icdc->base + ICDC_RGADW_OFFSET); + + ret = jz4725b_codec_io_wait(icdc); + if (ret) + return ret; + + return 0; +} + +static const u8 jz4725b_codec_reg_defaults[] = { + 0x0c, 0xaa, 0x78, 0x00, 0x00, 0xff, 0x03, 0x51, + 0x3f, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, + 0x04, 0x0a, 0x0a, 0x00, 0x00, 0x00, 0xc0, 0x34, + 0x07, 0x44, 0x1f, 0x00, +}; + +static const struct regmap_config jz4725b_codec_regmap_config = { + .reg_bits = 7, + .val_bits = 8, + + .max_register = JZ4725B_CODEC_REG_AGC5, + .volatile_reg = jz4725b_codec_volatile, + .readable_reg = jz4725b_codec_can_access_reg, + .writeable_reg = jz4725b_codec_can_access_reg, + + .reg_read = jz4725b_codec_reg_read, + .reg_write = jz4725b_codec_reg_write, + + .reg_defaults_raw = jz4725b_codec_reg_defaults, + .num_reg_defaults_raw = ARRAY_SIZE(jz4725b_codec_reg_defaults), + .cache_type = REGCACHE_FLAT, +}; + +static int jz4725b_codec_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct jz_icdc *icdc; + struct resource *mem; + int ret; + + icdc = devm_kzalloc(dev, sizeof(*icdc), GFP_KERNEL); + if (!icdc) + return -ENOMEM; + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + icdc->base = devm_ioremap_resource(dev, mem); + if (IS_ERR(icdc->base)) + return PTR_ERR(icdc->base); + + icdc->regmap = devm_regmap_init(dev, NULL, icdc, + &jz4725b_codec_regmap_config); + if (IS_ERR(icdc->regmap)) + return PTR_ERR(icdc->regmap); + + icdc->clk = devm_clk_get(&pdev->dev, "aic"); + if (IS_ERR(icdc->clk)) + return PTR_ERR(icdc->clk); + + platform_set_drvdata(pdev, icdc); + + ret = devm_snd_soc_register_component(dev, &jz4725b_codec, + &jz4725b_codec_dai, 1); + if (ret) + dev_err(dev, "Failed to register codec\n"); + + return ret; +} + +#ifdef CONFIG_OF +static const struct of_device_id jz4725b_codec_of_matches[] = { + { .compatible = "ingenic,jz4725b-codec", }, + { } +}; +MODULE_DEVICE_TABLE(of, jz4725b_codec_of_matches); +#endif + +static struct platform_driver jz4725b_codec_driver = { + .probe = jz4725b_codec_probe, + .driver = { + .name = "jz4725b-codec", + .of_match_table = of_match_ptr(jz4725b_codec_of_matches), + }, +}; +module_platform_driver(jz4725b_codec_driver); + +MODULE_DESCRIPTION("JZ4725B SoC internal codec driver"); +MODULE_AUTHOR("Paul Cercueil paul@crapouillou.net"); +MODULE_LICENSE("GPL v2");