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>
This commit is contained in:
Paul Cercueil
Mark Brown
Родитель
f13d4b5f85
Коммит
e9d97b05a8
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@ -90,6 +90,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_INNO_RK3036
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select SND_SOC_ISABELLE if I2C
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select SND_SOC_JZ4740_CODEC
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select SND_SOC_JZ4725B_CODEC
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select SND_SOC_LM4857 if I2C
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select SND_SOC_LM49453 if I2C
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select SND_SOC_MAX98088 if I2C
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@ -581,6 +582,17 @@ config SND_SOC_JZ4740_CODEC
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select REGMAP_MMIO
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tristate
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config SND_SOC_JZ4725B_CODEC
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depends on MIPS || COMPILE_TEST
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select REGMAP
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tristate "Ingenic JZ4725B internal CODEC"
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help
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Enable support for the internal CODEC found in the JZ4725B SoC
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from Ingenic.
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This driver can also be built as a module. If so, the module
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will be called snd-soc-jz4725b-codec.
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config SND_SOC_L3
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tristate
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@ -86,6 +86,7 @@ snd-soc-ics43432-objs := ics43432.o
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snd-soc-inno-rk3036-objs := inno_rk3036.o
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snd-soc-isabelle-objs := isabelle.o
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snd-soc-jz4740-codec-objs := jz4740.o
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snd-soc-jz4725b-codec-objs := jz4725b.o
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snd-soc-l3-objs := l3.o
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snd-soc-lm4857-objs := lm4857.o
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snd-soc-lm49453-objs := lm49453.o
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@ -357,6 +358,7 @@ obj-$(CONFIG_SND_SOC_ICS43432) += snd-soc-ics43432.o
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obj-$(CONFIG_SND_SOC_INNO_RK3036) += snd-soc-inno-rk3036.o
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obj-$(CONFIG_SND_SOC_ISABELLE) += snd-soc-isabelle.o
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obj-$(CONFIG_SND_SOC_JZ4740_CODEC) += snd-soc-jz4740-codec.o
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obj-$(CONFIG_SND_SOC_JZ4725B_CODEC) += snd-soc-jz4725b-codec.o
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obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o
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obj-$(CONFIG_SND_SOC_LM4857) += snd-soc-lm4857.o
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obj-$(CONFIG_SND_SOC_LM49453) += snd-soc-lm49453.o
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@ -0,0 +1,599 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* JZ4725B CODEC driver
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*
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* Copyright (C) 2019, Paul Cercueil <paul@crapouillou.net>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/io.h>
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#include <linux/iopoll.h>
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#include <linux/regmap.h>
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/initval.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#define ICDC_RGADW_OFFSET 0x00
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#define ICDC_RGDATA_OFFSET 0x04
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/* ICDC internal register access control register(RGADW) */
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#define ICDC_RGADW_RGWR BIT(16)
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#define ICDC_RGADW_RGADDR_OFFSET 8
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#define ICDC_RGADW_RGADDR_MASK GENMASK(14, ICDC_RGADW_RGADDR_OFFSET)
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#define ICDC_RGADW_RGDIN_OFFSET 0
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#define ICDC_RGADW_RGDIN_MASK GENMASK(7, ICDC_RGADW_RGDIN_OFFSET)
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/* ICDC internal register data output register (RGDATA)*/
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#define ICDC_RGDATA_IRQ BIT(8)
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#define ICDC_RGDATA_RGDOUT_OFFSET 0
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#define ICDC_RGDATA_RGDOUT_MASK GENMASK(7, ICDC_RGDATA_RGDOUT_OFFSET)
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/* JZ internal register space */
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enum {
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JZ4725B_CODEC_REG_AICR,
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JZ4725B_CODEC_REG_CR1,
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JZ4725B_CODEC_REG_CR2,
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JZ4725B_CODEC_REG_CCR1,
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JZ4725B_CODEC_REG_CCR2,
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JZ4725B_CODEC_REG_PMR1,
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JZ4725B_CODEC_REG_PMR2,
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JZ4725B_CODEC_REG_CRR,
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JZ4725B_CODEC_REG_ICR,
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JZ4725B_CODEC_REG_IFR,
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JZ4725B_CODEC_REG_CGR1,
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JZ4725B_CODEC_REG_CGR2,
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JZ4725B_CODEC_REG_CGR3,
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JZ4725B_CODEC_REG_CGR4,
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JZ4725B_CODEC_REG_CGR5,
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JZ4725B_CODEC_REG_CGR6,
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JZ4725B_CODEC_REG_CGR7,
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JZ4725B_CODEC_REG_CGR8,
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JZ4725B_CODEC_REG_CGR9,
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JZ4725B_CODEC_REG_CGR10,
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JZ4725B_CODEC_REG_TR1,
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JZ4725B_CODEC_REG_TR2,
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JZ4725B_CODEC_REG_CR3,
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JZ4725B_CODEC_REG_AGC1,
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JZ4725B_CODEC_REG_AGC2,
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JZ4725B_CODEC_REG_AGC3,
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JZ4725B_CODEC_REG_AGC4,
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JZ4725B_CODEC_REG_AGC5,
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};
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#define REG_AICR_CONFIG1_OFFSET 0
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#define REG_AICR_CONFIG1_MASK (0xf << REG_AICR_CONFIG1_OFFSET)
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#define REG_CR1_SB_MICBIAS_OFFSET 7
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#define REG_CR1_MONO_OFFSET 6
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#define REG_CR1_DAC_MUTE_OFFSET 5
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#define REG_CR1_HP_DIS_OFFSET 4
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#define REG_CR1_DACSEL_OFFSET 3
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#define REG_CR1_BYPASS_OFFSET 2
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#define REG_CR2_DAC_DEEMP_OFFSET 7
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#define REG_CR2_DAC_ADWL_OFFSET 5
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#define REG_CR2_DAC_ADWL_MASK (0x3 << REG_CR2_DAC_ADWL_OFFSET)
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#define REG_CR2_ADC_ADWL_OFFSET 3
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#define REG_CR2_ADC_ADWL_MASK (0x3 << REG_CR2_ADC_ADWL_OFFSET)
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#define REG_CR2_ADC_HPF_OFFSET 2
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#define REG_CR3_SB_MIC1_OFFSET 7
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#define REG_CR3_SB_MIC2_OFFSET 6
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#define REG_CR3_SIDETONE1_OFFSET 5
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#define REG_CR3_SIDETONE2_OFFSET 4
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#define REG_CR3_MICDIFF_OFFSET 3
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#define REG_CR3_MICSTEREO_OFFSET 2
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#define REG_CR3_INSEL_OFFSET 0
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#define REG_CR3_INSEL_MASK (0x3 << REG_CR3_INSEL_OFFSET)
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#define REG_CCR1_CONFIG4_OFFSET 0
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#define REG_CCR1_CONFIG4_MASK (0xf << REG_CCR1_CONFIG4_OFFSET)
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#define REG_CCR2_DFREQ_OFFSET 4
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#define REG_CCR2_DFREQ_MASK (0xf << REG_CCR2_DFREQ_OFFSET)
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#define REG_CCR2_AFREQ_OFFSET 0
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#define REG_CCR2_AFREQ_MASK (0xf << REG_CCR2_AFREQ_OFFSET)
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#define REG_PMR1_SB_DAC_OFFSET 7
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#define REG_PMR1_SB_OUT_OFFSET 6
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#define REG_PMR1_SB_MIX_OFFSET 5
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#define REG_PMR1_SB_ADC_OFFSET 4
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#define REG_PMR1_SB_LIN_OFFSET 3
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#define REG_PMR1_SB_IND_OFFSET 0
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#define REG_PMR2_LRGI_OFFSET 7
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#define REG_PMR2_RLGI_OFFSET 6
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#define REG_PMR2_LRGOD_OFFSET 5
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#define REG_PMR2_RLGOD_OFFSET 4
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#define REG_PMR2_GIM_OFFSET 3
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#define REG_PMR2_SB_MC_OFFSET 2
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#define REG_PMR2_SB_OFFSET 1
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#define REG_PMR2_SB_SLEEP_OFFSET 0
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#define REG_IFR_RAMP_UP_DONE_OFFSET 3
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#define REG_IFR_RAMP_DOWN_DONE_OFFSET 2
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#define REG_CGR1_GODL_OFFSET 4
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#define REG_CGR1_GODL_MASK (0xf << REG_CGR1_GODL_OFFSET)
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#define REG_CGR1_GODR_OFFSET 0
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#define REG_CGR1_GODR_MASK (0xf << REG_CGR1_GODR_OFFSET)
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#define REG_CGR2_GO1R_OFFSET 0
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#define REG_CGR2_GO1R_MASK (0x1f << REG_CGR2_GO1R_OFFSET)
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#define REG_CGR3_GO1L_OFFSET 0
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#define REG_CGR3_GO1L_MASK (0x1f << REG_CGR3_GO1L_OFFSET)
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struct jz_icdc {
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struct regmap *regmap;
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void __iomem *base;
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struct clk *clk;
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};
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static const SNDRV_CTL_TLVD_DECLARE_DB_LINEAR(jz4725b_dac_tlv, -2250, 0);
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static const SNDRV_CTL_TLVD_DECLARE_DB_LINEAR(jz4725b_line_tlv, -1500, 600);
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static const struct snd_kcontrol_new jz4725b_codec_controls[] = {
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SOC_DOUBLE_TLV("Master Playback Volume",
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JZ4725B_CODEC_REG_CGR1,
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REG_CGR1_GODL_OFFSET,
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REG_CGR1_GODR_OFFSET,
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0xf, 1, jz4725b_dac_tlv),
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SOC_DOUBLE_R_TLV("Master Capture Volume",
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JZ4725B_CODEC_REG_CGR3,
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JZ4725B_CODEC_REG_CGR2,
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REG_CGR2_GO1R_OFFSET,
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0x1f, 1, jz4725b_line_tlv),
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SOC_SINGLE("Master Playback Switch", JZ4725B_CODEC_REG_CR1,
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REG_CR1_DAC_MUTE_OFFSET, 1, 1),
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SOC_SINGLE("Deemphatize Filter Playback Switch",
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JZ4725B_CODEC_REG_CR2,
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REG_CR2_DAC_DEEMP_OFFSET, 1, 0),
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SOC_SINGLE("High-Pass Filter Capture Switch",
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JZ4725B_CODEC_REG_CR2,
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REG_CR2_ADC_HPF_OFFSET, 1, 0),
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};
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static const char * const jz4725b_codec_adc_src_texts[] = {
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"Mic 1", "Mic 2", "Line In", "Mixer",
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};
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static const unsigned int jz4725b_codec_adc_src_values[] = { 0, 1, 2, 3, };
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static const SOC_VALUE_ENUM_SINGLE_DECL(jz4725b_codec_adc_src_enum,
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JZ4725B_CODEC_REG_CR3,
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REG_CR3_INSEL_OFFSET,
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REG_CR3_INSEL_MASK,
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jz4725b_codec_adc_src_texts,
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jz4725b_codec_adc_src_values);
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static const struct snd_kcontrol_new jz4725b_codec_adc_src_ctrl =
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SOC_DAPM_ENUM("Route", jz4725b_codec_adc_src_enum);
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static const struct snd_kcontrol_new jz4725b_codec_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line In Bypass", JZ4725B_CODEC_REG_CR1,
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REG_CR1_BYPASS_OFFSET, 1, 0),
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};
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static int jz4725b_out_stage_enable(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol,
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int event)
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{
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struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm);
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struct jz_icdc *icdc = snd_soc_component_get_drvdata(codec);
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struct regmap *map = icdc->regmap;
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unsigned int val;
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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return regmap_update_bits(map, JZ4725B_CODEC_REG_IFR,
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BIT(REG_IFR_RAMP_UP_DONE_OFFSET), 0);
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case SND_SOC_DAPM_POST_PMU:
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return regmap_read_poll_timeout(map, JZ4725B_CODEC_REG_IFR,
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val, val & BIT(REG_IFR_RAMP_UP_DONE_OFFSET),
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100000, 500000);
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case SND_SOC_DAPM_PRE_PMD:
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return regmap_update_bits(map, JZ4725B_CODEC_REG_IFR,
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BIT(REG_IFR_RAMP_DOWN_DONE_OFFSET), 0);
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case SND_SOC_DAPM_POST_PMD:
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return regmap_read_poll_timeout(map, JZ4725B_CODEC_REG_IFR,
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val, val & BIT(REG_IFR_RAMP_DOWN_DONE_OFFSET),
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100000, 500000);
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default:
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return -EINVAL;
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}
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}
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static const struct snd_soc_dapm_widget jz4725b_codec_dapm_widgets[] = {
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/* DAC */
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SND_SOC_DAPM_DAC("DAC", "Playback",
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JZ4725B_CODEC_REG_PMR1, REG_PMR1_SB_DAC_OFFSET, 1),
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/* ADC */
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SND_SOC_DAPM_ADC("ADC", "Capture",
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JZ4725B_CODEC_REG_PMR1, REG_PMR1_SB_ADC_OFFSET, 1),
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SND_SOC_DAPM_MUX("ADC Source", SND_SOC_NOPM, 0, 0,
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&jz4725b_codec_adc_src_ctrl),
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/* Mixer */
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SND_SOC_DAPM_MIXER("Mixer", JZ4725B_CODEC_REG_PMR1,
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REG_PMR1_SB_MIX_OFFSET, 1,
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jz4725b_codec_mixer_controls,
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ARRAY_SIZE(jz4725b_codec_mixer_controls)),
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SND_SOC_DAPM_MIXER("DAC to Mixer", JZ4725B_CODEC_REG_CR1,
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REG_CR1_DACSEL_OFFSET, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("Line In", SND_SOC_NOPM, 0, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("HP Out", JZ4725B_CODEC_REG_CR1,
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REG_CR1_HP_DIS_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_MIXER("Mic 1", JZ4725B_CODEC_REG_CR3,
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REG_CR3_SB_MIC1_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_MIXER("Mic 2", JZ4725B_CODEC_REG_CR3,
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REG_CR3_SB_MIC2_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_MIXER_E("Out Stage", JZ4725B_CODEC_REG_PMR1,
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REG_PMR1_SB_OUT_OFFSET, 1, NULL, 0,
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jz4725b_out_stage_enable,
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SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
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SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
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SND_SOC_DAPM_MIXER("Mixer to ADC", JZ4725B_CODEC_REG_PMR1,
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REG_PMR1_SB_IND_OFFSET, 1, NULL, 0),
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SND_SOC_DAPM_SUPPLY("Mic Bias", JZ4725B_CODEC_REG_CR1,
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REG_CR1_SB_MICBIAS_OFFSET, 1, NULL, 0),
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/* Pins */
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SND_SOC_DAPM_INPUT("MIC1P"),
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SND_SOC_DAPM_INPUT("MIC1N"),
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SND_SOC_DAPM_INPUT("MIC2P"),
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SND_SOC_DAPM_INPUT("MIC2N"),
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SND_SOC_DAPM_INPUT("LLINEIN"),
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SND_SOC_DAPM_INPUT("RLINEIN"),
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SND_SOC_DAPM_OUTPUT("LHPOUT"),
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SND_SOC_DAPM_OUTPUT("RHPOUT"),
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};
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static const struct snd_soc_dapm_route jz4725b_codec_dapm_routes[] = {
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{"Mic 1", NULL, "MIC1P"},
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{"Mic 1", NULL, "MIC1N"},
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{"Mic 2", NULL, "MIC2P"},
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{"Mic 2", NULL, "MIC2N"},
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{"Line In", NULL, "LLINEIN"},
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{"Line In", NULL, "RLINEIN"},
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{"Mixer", "Line In Bypass", "Line In"},
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{"DAC to Mixer", NULL, "DAC"},
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{"Mixer", NULL, "DAC to Mixer"},
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{"Mixer to ADC", NULL, "Mixer"},
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{"ADC Source", "Mixer", "Mixer to ADC"},
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{"ADC Source", "Line In", "Line In"},
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{"ADC Source", "Mic 1", "Mic 1"},
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{"ADC Source", "Mic 2", "Mic 2"},
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{"ADC", NULL, "ADC Source"},
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{"Out Stage", NULL, "Mixer"},
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{"HP Out", NULL, "Out Stage"},
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{"LHPOUT", NULL, "HP Out"},
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{"RHPOUT", NULL, "HP Out"},
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};
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static int jz4725b_codec_set_bias_level(struct snd_soc_component *component,
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enum snd_soc_bias_level level)
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{
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struct jz_icdc *icdc = snd_soc_component_get_drvdata(component);
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struct regmap *map = icdc->regmap;
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switch (level) {
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case SND_SOC_BIAS_ON:
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regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2,
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BIT(REG_PMR2_SB_SLEEP_OFFSET), 0);
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break;
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case SND_SOC_BIAS_PREPARE:
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/* Enable sound hardware */
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regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2,
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BIT(REG_PMR2_SB_OFFSET), 0);
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msleep(224);
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break;
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case SND_SOC_BIAS_STANDBY:
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regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2,
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BIT(REG_PMR2_SB_SLEEP_OFFSET),
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BIT(REG_PMR2_SB_SLEEP_OFFSET));
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break;
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case SND_SOC_BIAS_OFF:
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regmap_update_bits(map, JZ4725B_CODEC_REG_PMR2,
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BIT(REG_PMR2_SB_OFFSET),
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BIT(REG_PMR2_SB_OFFSET));
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break;
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}
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||||
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");
|
||||
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