mirror of https://gitee.com/openkylin/linux.git
ASoC: mediatek: Add AFE platform driver
This is the DPCM based platform driver of AFE (Audio Front End) unit. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Koro Chen <koro.chen@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Koro Chen
Mark Brown
parent
b787f68c36
commit
ee0bcaff10
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Mediatek AFE PCM controller
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Required properties:
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- compatible = "mediatek,mt8173-afe-pcm";
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- reg: register location and size
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- interrupts: Should contain AFE interrupt
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- clock-names: should have these clock names:
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"infra_sys_audio_clk",
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"top_pdn_audio",
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"top_pdn_aud_intbus",
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"bck0",
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"bck1",
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"i2s0_m",
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"i2s1_m",
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"i2s2_m",
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"i2s3_m",
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"i2s3_b";
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Example:
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afe: mt8173-afe-pcm@11220000 {
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compatible = "mediatek,mt8173-afe-pcm";
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reg = <0 0x11220000 0 0x1000>;
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interrupts = <GIC_SPI 134 IRQ_TYPE_EDGE_FALLING>;
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clocks = <&infracfg INFRA_AUDIO>,
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<&topckgen TOP_AUDIO_SEL>,
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<&topckgen TOP_AUD_INTBUS_SEL>,
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<&topckgen TOP_APLL1_DIV0>,
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<&topckgen TOP_APLL2_DIV0>,
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<&topckgen TOP_I2S0_M_CK_SEL>,
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<&topckgen TOP_I2S1_M_CK_SEL>,
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<&topckgen TOP_I2S2_M_CK_SEL>,
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<&topckgen TOP_I2S3_M_CK_SEL>,
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<&topckgen TOP_I2S3_B_CK_SEL>;
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clock-names = "infra_sys_audio_clk",
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"top_pdn_audio",
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"top_pdn_aud_intbus",
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"bck0",
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"bck1",
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"i2s0_m",
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"i2s1_m",
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"i2s2_m",
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"i2s3_m",
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"i2s3_b";
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};
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@ -45,6 +45,7 @@ source "sound/soc/nuc900/Kconfig"
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source "sound/soc/omap/Kconfig"
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source "sound/soc/kirkwood/Kconfig"
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source "sound/soc/intel/Kconfig"
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source "sound/soc/mediatek/Kconfig"
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source "sound/soc/mxs/Kconfig"
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source "sound/soc/pxa/Kconfig"
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source "sound/soc/qcom/Kconfig"
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@ -23,6 +23,7 @@ obj-$(CONFIG_SND_SOC) += dwc/
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obj-$(CONFIG_SND_SOC) += fsl/
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obj-$(CONFIG_SND_SOC) += jz4740/
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obj-$(CONFIG_SND_SOC) += intel/
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obj-$(CONFIG_SND_SOC) += mediatek/
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obj-$(CONFIG_SND_SOC) += mxs/
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obj-$(CONFIG_SND_SOC) += nuc900/
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obj-$(CONFIG_SND_SOC) += omap/
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config SND_SOC_MEDIATEK
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tristate "ASoC support for Mediatek chip"
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depends on ARCH_MEDIATEK
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help
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This adds ASoC platform driver support for Mediatek chip
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that can be used with other codecs.
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Select Y if you have such device.
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Ex: MT8173
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# MTK Platform Support
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obj-$(CONFIG_SND_SOC_MEDIATEK) += mtk-afe-pcm.o
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/*
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* mtk_afe_common.h -- Mediatek audio driver common definitions
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*
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* Copyright (c) 2015 MediaTek Inc.
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* Author: Koro Chen <koro.chen@mediatek.com>
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* Sascha Hauer <s.hauer@pengutronix.de>
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* Hidalgo Huang <hidalgo.huang@mediatek.com>
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* Ir Lian <ir.lian@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _MTK_AFE_COMMON_H_
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#define _MTK_AFE_COMMON_H_
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#include <linux/clk.h>
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#include <linux/regmap.h>
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enum {
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MTK_AFE_MEMIF_DL1,
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MTK_AFE_MEMIF_DL2,
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MTK_AFE_MEMIF_VUL,
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MTK_AFE_MEMIF_DAI,
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MTK_AFE_MEMIF_AWB,
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MTK_AFE_MEMIF_MOD_DAI,
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MTK_AFE_MEMIF_HDMI,
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MTK_AFE_MEMIF_NUM,
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MTK_AFE_IO_MOD_PCM1 = MTK_AFE_MEMIF_NUM,
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MTK_AFE_IO_MOD_PCM2,
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MTK_AFE_IO_PMIC,
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MTK_AFE_IO_I2S,
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MTK_AFE_IO_2ND_I2S,
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MTK_AFE_IO_HW_GAIN1,
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MTK_AFE_IO_HW_GAIN2,
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MTK_AFE_IO_MRG_O,
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MTK_AFE_IO_MRG_I,
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MTK_AFE_IO_DAIBT,
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MTK_AFE_IO_HDMI,
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};
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enum {
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MTK_AFE_IRQ_1,
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MTK_AFE_IRQ_2,
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MTK_AFE_IRQ_3,
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MTK_AFE_IRQ_4,
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MTK_AFE_IRQ_5,
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MTK_AFE_IRQ_6,
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MTK_AFE_IRQ_7,
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MTK_AFE_IRQ_8,
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MTK_AFE_IRQ_NUM,
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};
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enum {
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MTK_CLK_INFRASYS_AUD,
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MTK_CLK_TOP_PDN_AUD,
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MTK_CLK_TOP_PDN_AUD_BUS,
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MTK_CLK_I2S0_M,
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MTK_CLK_I2S1_M,
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MTK_CLK_I2S2_M,
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MTK_CLK_I2S3_M,
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MTK_CLK_I2S3_B,
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MTK_CLK_BCK0,
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MTK_CLK_BCK1,
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MTK_CLK_NUM
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};
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struct mtk_afe;
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struct snd_pcm_substream;
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struct mtk_afe_memif_data {
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int id;
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const char *name;
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int reg_ofs_base;
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int reg_ofs_cur;
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int fs_shift;
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int mono_shift;
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int enable_shift;
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int irq_reg_cnt;
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int irq_cnt_shift;
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int irq_en_shift;
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int irq_fs_shift;
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int irq_clr_shift;
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};
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struct mtk_afe_memif {
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unsigned int phys_buf_addr;
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int buffer_size;
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unsigned int hw_ptr; /* Previous IRQ's HW ptr */
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struct snd_pcm_substream *substream;
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const struct mtk_afe_memif_data *data;
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const struct mtk_afe_irq_data *irqdata;
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};
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struct mtk_afe {
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/* address for ioremap audio hardware register */
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void __iomem *base_addr;
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struct device *dev;
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struct regmap *regmap;
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struct mtk_afe_memif memif[MTK_AFE_MEMIF_NUM];
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struct clk *clocks[MTK_CLK_NUM];
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};
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#endif
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