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build/patch/kernel/archive/rk322x-5.19/02-linux-0008-rk322x-analog-audio-codec.patch

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From b4f40590a4f946d8ee704faf8579930e53ef4650 Mon Sep 17 00:00:00 2001
From: Paolo Sabatino <paolo.sabatino@gmail.com>
Date: Sun, 12 Sep 2021 10:15:56 +0000
Subject: [PATCH] rk322x: analog audio codec
---
.../bindings/sound/rockchip,rk3228-codec.txt | 22 +
arch/arm/boot/dts/rk322x.dtsi | 9 +
drivers/clk/rockchip/clk-rk3228.c | 2 +-
include/dt-bindings/clock/rk3228-cru.h | 1 +
sound/soc/codecs/Kconfig | 5 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/rk3228_codec.c | 545 ++++++++++++++++++
sound/soc/codecs/rk3228_codec.h | 218 +++++++
8 files changed, 803 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/sound/rockchip,rk3228-codec.txt
create mode 100644 sound/soc/codecs/rk3228_codec.c
create mode 100644 sound/soc/codecs/rk3228_codec.h
diff --git a/Documentation/devicetree/bindings/sound/rockchip,rk3228-codec.txt b/Documentation/devicetree/bindings/sound/rockchip,rk3228-codec.txt
new file mode 100644
index 000000000..9191a8593
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rockchip,rk3228-codec.txt
@@ -0,0 +1,22 @@
+* Rockchip Rk3228 internal codec
+
+Required properties:
+
+- compatible: "rockchip,rk3228-codec"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names.
+- clock-names: a list of clock names, one for each entry in clocks.
+- spk-en-gpio: speaker enable gpio.
+- spk-depop-time-ms: speaker depop time msec.
+
+Example for rk3228 internal codec:
+
+codec: codec@12010000 {
+ compatible = "rockchip,rk3228-codec";
+ reg = <0x12010000 0x1000>;
+ clocks = <&cru SCLK_I2S_OUT>, <&cru PCLK_ACODECPHY>, <&cru SCLK_I2S1>;
+ clock-names = "mclk", "pclk", "sclk";
+ spk-en-gpio = <&gpio1 RK_PA3 GPIO_ACTIVE_HIGH>;
+ status = "disabled";
+};
diff --git a/arch/arm/boot/dts/rk322x.dtsi b/arch/arm/boot/dts/rk322x.dtsi
index 75af99c76..c2670d498 100644
--- a/arch/arm/boot/dts/rk322x.dtsi
+++ b/arch/arm/boot/dts/rk322x.dtsi
@@ -145,6 +145,15 @@ i2s1: i2s1@100b0000 {
status = "disabled";
};
+ codec: codec@12010000 {
+ compatible = "rockchip,rk3228-codec";
+ reg = <0x12010000 0x1000>;
+ clocks = <&cru SCLK_I2S_OUT>, <&cru PCLK_ACODECPHY>, <&cru SCLK_I2S1>;
+ clock-names = "mclk", "pclk", "sclk";
+ spk-en-gpio = <&gpio1 RK_PA3 GPIO_ACTIVE_HIGH>;
+ status = "disabled";
+ };
+
i2s0: i2s0@100c0000 {
compatible = "rockchip,rk3228-i2s", "rockchip,rk3066-i2s";
reg = <0x100c0000 0x4000>;
diff --git a/drivers/clk/rockchip/clk-rk3228.c b/drivers/clk/rockchip/clk-rk3228.c
index a24a35553..69f8c792f 100644
--- a/drivers/clk/rockchip/clk-rk3228.c
+++ b/drivers/clk/rockchip/clk-rk3228.c
@@ -620,7 +620,7 @@ static struct rockchip_clk_branch rk3228_clk_branches[] __initdata = {
GATE(0, "pclk_sim", "pclk_cpu", 0, RK2928_CLKGATE_CON(10), 3, GFLAGS),
GATE(0, "pclk_ddrphy", "pclk_phy_pre", 0, RK2928_CLKGATE_CON(10), 3, GFLAGS),
- GATE(0, "pclk_acodecphy", "pclk_phy_pre", 0, RK2928_CLKGATE_CON(10), 5, GFLAGS),
+ GATE(PCLK_ACODECPHY, "pclk_acodecphy", "pclk_phy_pre", 0, RK2928_CLKGATE_CON(10), 5, GFLAGS),
GATE(PCLK_HDMI_PHY, "pclk_hdmiphy", "pclk_phy_pre", 0, RK2928_CLKGATE_CON(10), 7, GFLAGS),
GATE(0, "pclk_vdacphy", "pclk_phy_pre", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS),
GATE(0, "pclk_phy_noc", "pclk_phy_pre", 0, RK2928_CLKGATE_CON(10), 9, GFLAGS),
diff --git a/include/dt-bindings/clock/rk3228-cru.h b/include/dt-bindings/clock/rk3228-cru.h
index de550ea56..30d44ce90 100644
--- a/include/dt-bindings/clock/rk3228-cru.h
+++ b/include/dt-bindings/clock/rk3228-cru.h
@@ -115,6 +115,7 @@
#define PCLK_HDMI_CTRL 364
#define PCLK_HDMI_PHY 365
#define PCLK_GMAC 367
+#define PCLK_ACODECPHY 368
/* hclk gates */
#define HCLK_I2S0_8CH 442
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index db1607120..5f7f01102 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -154,6 +154,7 @@ config SND_SOC_ALL_CODECS
imply SND_SOC_PCM5102A
imply SND_SOC_PCM512x_I2C
imply SND_SOC_PCM512x_SPI
+ imply SND_SOC_RK3228
imply SND_SOC_RK3328
imply SND_SOC_RK817
imply SND_SOC_RT274
@@ -1063,6 +1064,10 @@ config SND_SOC_PCM512x_SPI
select SND_SOC_PCM512x
select REGMAP_SPI
+config SND_SOC_RK3228
+ select REGMAP_MMIO
+ tristate "Rockchip RK3228 CODEC"
+
config SND_SOC_RK3328
tristate "Rockchip RK3328 audio CODEC"
select REGMAP_MMIO
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 7bb38c370..232b5c43e 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -165,6 +165,7 @@ snd-soc-pcm5102a-objs := pcm5102a.o
snd-soc-pcm512x-objs := pcm512x.o
snd-soc-pcm512x-i2c-objs := pcm512x-i2c.o
snd-soc-pcm512x-spi-objs := pcm512x-spi.o
+snd-soc-rk3228-objs := rk3228_codec.o
snd-soc-rk3328-objs := rk3328_codec.o
snd-soc-rk817-objs := rk817_codec.o
snd-soc-rl6231-objs := rl6231.o
@@ -491,6 +492,7 @@ obj-$(CONFIG_SND_SOC_PCM5102A) += snd-soc-pcm5102a.o
obj-$(CONFIG_SND_SOC_PCM512x) += snd-soc-pcm512x.o
obj-$(CONFIG_SND_SOC_PCM512x_I2C) += snd-soc-pcm512x-i2c.o
obj-$(CONFIG_SND_SOC_PCM512x_SPI) += snd-soc-pcm512x-spi.o
+obj-$(CONFIG_SND_SOC_RK3228) += snd-soc-rk3228.o
obj-$(CONFIG_SND_SOC_RK3328) += snd-soc-rk3328.o
obj-$(CONFIG_SND_SOC_RK817) += snd-soc-rk817.o
obj-$(CONFIG_SND_SOC_RL6231) += snd-soc-rl6231.o
diff --git a/sound/soc/codecs/rk3228_codec.c b/sound/soc/codecs/rk3228_codec.c
new file mode 100644
index 000000000..b65307435
--- /dev/null
+++ b/sound/soc/codecs/rk3228_codec.c
@@ -0,0 +1,545 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// rk3228_codec.c -- rk3228 ALSA Soc Audio driver
+//
+// Copyright (c) 2018, Fuzhou Rockchip Electronics Co., Ltd All rights reserved.
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include <sound/dmaengine_pcm.h>
+#include "rk3228_codec.h"
+
+/*
+ * volume setting
+ * 0: -39dB
+ * 26: 0dB
+ * 31: 6dB
+ * Step: 1.5dB
+ */
+#define OUT_VOLUME (0x18)
+#define INITIAL_FREQ (11289600)
+
+struct rk3228_codec_priv {
+ struct regmap *regmap;
+ struct clk *mclk;
+ struct clk *pclk;
+ struct clk *sclk;
+ struct gpio_desc *spk_en_gpio;
+ int spk_depop_time; /* msec */
+};
+
+static const struct reg_default rk3228_codec_reg_defaults[] = {
+ { CODEC_RESET, 0x03 },
+ { DAC_INIT_CTRL1, 0x00 },
+ { DAC_INIT_CTRL2, 0x50 },
+ { DAC_INIT_CTRL3, 0x0e },
+ { DAC_PRECHARGE_CTRL, 0x01 },
+ { DAC_PWR_CTRL, 0x00 },
+ { DAC_CLK_CTRL, 0x00 },
+ { HPMIX_CTRL, 0x00 },
+ { HPOUT_CTRL, 0x00 },
+ { HPOUTL_GAIN_CTRL, 0x00 },
+ { HPOUTR_GAIN_CTRL, 0x00 },
+ { HPOUT_POP_CTRL, 0x11 },
+};
+
+static int rk3228_codec_reset(struct snd_soc_component *component)
+{
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+
+ regmap_write(rk3228->regmap, CODEC_RESET, 0);
+ mdelay(10);
+ regmap_write(rk3228->regmap, CODEC_RESET, 0x03);
+
+ return 0;
+}
+
+static int rk3228_set_dai_fmt(struct snd_soc_dai *dai,
+ unsigned int fmt)
+{
+ struct snd_soc_component *component = dai->component;
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+ unsigned int val = 0;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ val |= PIN_DIRECTION_IN | DAC_I2S_MODE_SLAVE;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ val |= PIN_DIRECTION_OUT | DAC_I2S_MODE_MASTER;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(rk3228->regmap, DAC_INIT_CTRL1,
+ PIN_DIRECTION_MASK | DAC_I2S_MODE_MASK, val);
+
+ val = 0;
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ case SND_SOC_DAIFMT_DSP_B:
+ val |= DAC_MODE_PCM;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ val |= DAC_MODE_I2S;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ val |= DAC_MODE_RJM;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ val |= DAC_MODE_LJM;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(rk3228->regmap, DAC_INIT_CTRL2,
+ DAC_MODE_MASK, val);
+ return 0;
+}
+
+static void rk3228_analog_output(struct rk3228_codec_priv *rk3228, int mute)
+{
+ if (rk3228->spk_en_gpio)
+ gpiod_set_value(rk3228->spk_en_gpio, mute);
+}
+
+static int rk3228_mute_stream(struct snd_soc_dai *dai, int mute, int direction)
+{
+ struct snd_soc_component *component = dai->component;
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+ unsigned int val = 0;
+
+ if (direction != SNDRV_PCM_STREAM_PLAYBACK)
+ return 0;
+
+ if (mute)
+ val = HPOUTL_MUTE | HPOUTR_MUTE;
+ else
+ val = HPOUTL_UNMUTE | HPOUTR_UNMUTE;
+
+ regmap_update_bits(rk3228->regmap, HPOUT_CTRL,
+ HPOUTL_MUTE_MASK | HPOUTR_MUTE_MASK, val);
+ return 0;
+}
+
+static int rk3228_codec_power_on(struct snd_soc_component *component, int wait_ms)
+{
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+
+ regmap_update_bits(rk3228->regmap, DAC_PRECHARGE_CTRL,
+ DAC_CHARGE_XCHARGE_MASK, DAC_CHARGE_PRECHARGE);
+ mdelay(10);
+ regmap_update_bits(rk3228->regmap, DAC_PRECHARGE_CTRL,
+ DAC_CHARGE_CURRENT_ALL_MASK,
+ DAC_CHARGE_CURRENT_ALL_ON);
+
+ mdelay(wait_ms);
+
+ return 0;
+}
+
+static int rk3228_codec_power_off(struct snd_soc_component *component, int wait_ms)
+{
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+
+ regmap_update_bits(rk3228->regmap, DAC_PRECHARGE_CTRL,
+ DAC_CHARGE_XCHARGE_MASK, DAC_CHARGE_DISCHARGE);
+ mdelay(10);
+ regmap_update_bits(rk3228->regmap, DAC_PRECHARGE_CTRL,
+ DAC_CHARGE_CURRENT_ALL_MASK,
+ DAC_CHARGE_CURRENT_ALL_ON);
+
+ mdelay(wait_ms);
+
+ return 0;
+}
+
+static struct rk3228_reg_msk_val playback_open_list[] = {
+ { DAC_PWR_CTRL, DAC_PWR_MASK, DAC_PWR_ON },
+ { DAC_PWR_CTRL, DACL_PATH_REFV_MASK | DACR_PATH_REFV_MASK,
+ DACL_PATH_REFV_ON | DACR_PATH_REFV_ON },
+ { DAC_PWR_CTRL, HPOUTL_ZERO_CROSSING_ON | HPOUTR_ZERO_CROSSING_ON,
+ HPOUTL_ZERO_CROSSING_ON | HPOUTR_ZERO_CROSSING_ON },
+ { HPOUT_POP_CTRL, HPOUTR_POP_MASK | HPOUTL_POP_MASK,
+ HPOUTR_POP_WORK | HPOUTL_POP_WORK },
+ { HPMIX_CTRL, HPMIXL_MASK | HPMIXR_MASK, HPMIXL_EN | HPMIXR_EN },
+ { HPMIX_CTRL, HPMIXL_INIT_MASK | HPMIXR_INIT_MASK,
+ HPMIXL_INIT_EN | HPMIXR_INIT_EN },
+ { HPOUT_CTRL, HPOUTL_MASK | HPOUTR_MASK, HPOUTL_EN | HPOUTR_EN },
+ { HPOUT_CTRL, HPOUTL_INIT_MASK | HPOUTR_INIT_MASK,
+ HPOUTL_INIT_EN | HPOUTR_INIT_EN },
+ { DAC_CLK_CTRL, DACL_REFV_MASK | DACR_REFV_MASK,
+ DACL_REFV_ON | DACR_REFV_ON },
+ { DAC_CLK_CTRL, DACL_CLK_MASK | DACR_CLK_MASK,
+ DACL_CLK_ON | DACR_CLK_ON },
+ { DAC_CLK_CTRL, DACL_MASK | DACR_MASK, DACL_ON | DACR_ON },
+ { DAC_CLK_CTRL, DACL_INIT_MASK | DACR_INIT_MASK,
+ DACL_INIT_ON | DACR_INIT_ON },
+ { DAC_SELECT, DACL_SELECT_MASK | DACR_SELECT_MASK,
+ DACL_SELECT | DACR_SELECT },
+ { HPMIX_CTRL, HPMIXL_INIT2_MASK | HPMIXR_INIT2_MASK,
+ HPMIXL_INIT2_EN | HPMIXR_INIT2_EN },
+ { HPOUT_CTRL, HPOUTL_MUTE_MASK | HPOUTR_MUTE_MASK,
+ HPOUTL_UNMUTE | HPOUTR_UNMUTE },
+};
+
+#define PLAYBACK_OPEN_LIST_LEN ARRAY_SIZE(playback_open_list)
+
+static int rk3228_codec_open_playback(struct snd_soc_component *component)
+{
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+ int i = 0;
+
+ regmap_update_bits(rk3228->regmap, DAC_PRECHARGE_CTRL,
+ DAC_CHARGE_CURRENT_ALL_MASK,
+ DAC_CHARGE_CURRENT_I);
+
+ for (i = 0; i < PLAYBACK_OPEN_LIST_LEN; i++) {
+ regmap_update_bits(rk3228->regmap,
+ playback_open_list[i].reg,
+ playback_open_list[i].msk,
+ playback_open_list[i].val);
+ mdelay(1);
+ }
+
+ msleep(rk3228->spk_depop_time);
+ rk3228_analog_output(rk3228, 1);
+
+ regmap_update_bits(rk3228->regmap, HPOUTL_GAIN_CTRL,
+ HPOUTL_GAIN_MASK, OUT_VOLUME);
+ regmap_update_bits(rk3228->regmap, HPOUTR_GAIN_CTRL,
+ HPOUTR_GAIN_MASK, OUT_VOLUME);
+ return 0;
+}
+
+static struct rk3228_reg_msk_val playback_close_list[] = {
+ { HPMIX_CTRL, HPMIXL_INIT2_MASK | HPMIXR_INIT2_MASK,
+ HPMIXL_INIT2_DIS | HPMIXR_INIT2_DIS },
+ { DAC_SELECT, DACL_SELECT_MASK | DACR_SELECT_MASK,
+ DACL_DESELECT | DACR_DESELECT },
+ { HPOUT_CTRL, HPOUTL_MUTE_MASK | HPOUTR_MUTE_MASK,
+ HPOUTL_MUTE | HPOUTR_MUTE },
+ { HPOUT_CTRL, HPOUTL_INIT_MASK | HPOUTR_INIT_MASK,
+ HPOUTL_INIT_DIS | HPOUTR_INIT_DIS },
+ { HPOUT_CTRL, HPOUTL_MASK | HPOUTR_MASK, HPOUTL_DIS | HPOUTR_DIS },
+ { HPMIX_CTRL, HPMIXL_MASK | HPMIXR_MASK, HPMIXL_DIS | HPMIXR_DIS },
+ { DAC_CLK_CTRL, DACL_MASK | DACR_MASK, DACL_OFF | DACR_OFF },
+ { DAC_CLK_CTRL, DACL_CLK_MASK | DACR_CLK_MASK,
+ DACL_CLK_OFF | DACR_CLK_OFF },
+ { DAC_CLK_CTRL, DACL_REFV_MASK | DACR_REFV_MASK,
+ DACL_REFV_OFF | DACR_REFV_OFF },
+ { HPOUT_POP_CTRL, HPOUTR_POP_MASK | HPOUTL_POP_MASK,
+ HPOUTR_POP_XCHARGE | HPOUTL_POP_XCHARGE },
+ { DAC_PWR_CTRL, DACL_PATH_REFV_MASK | DACR_PATH_REFV_MASK,
+ DACL_PATH_REFV_OFF | DACR_PATH_REFV_OFF },
+ { DAC_PWR_CTRL, DAC_PWR_MASK, DAC_PWR_OFF },
+ { HPMIX_CTRL, HPMIXL_INIT_MASK | HPMIXR_INIT_MASK,
+ HPMIXL_INIT_DIS | HPMIXR_INIT_DIS },
+ { DAC_CLK_CTRL, DACL_INIT_MASK | DACR_INIT_MASK,
+ DACL_INIT_OFF | DACR_INIT_OFF },
+};
+
+#define PLAYBACK_CLOSE_LIST_LEN ARRAY_SIZE(playback_close_list)
+
+static int rk3228_codec_close_playback(struct snd_soc_component *component)
+{
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+ int i = 0;
+
+ rk3228_analog_output(rk3228, 0);
+
+ regmap_update_bits(rk3228->regmap, HPOUTL_GAIN_CTRL,
+ HPOUTL_GAIN_MASK, 0);
+ regmap_update_bits(rk3228->regmap, HPOUTR_GAIN_CTRL,
+ HPOUTR_GAIN_MASK, 0);
+
+ for (i = 0; i < PLAYBACK_CLOSE_LIST_LEN; i++) {
+ regmap_update_bits(rk3228->regmap,
+ playback_close_list[i].reg,
+ playback_close_list[i].msk,
+ playback_close_list[i].val);
+ mdelay(1);
+ }
+
+ regmap_update_bits(rk3228->regmap, DAC_PRECHARGE_CTRL,
+ DAC_CHARGE_CURRENT_ALL_MASK,
+ DAC_CHARGE_CURRENT_I);
+ return 0;
+}
+
+static int rk3228_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct rk3228_codec_priv *rk3228 = snd_soc_component_get_drvdata(component);
+ unsigned int val = 0;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ val |= DAC_VDL_16BITS;
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ val |= DAC_VDL_20BITS;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ val |= DAC_VDL_24BITS;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ val |= DAC_VDL_32BITS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(rk3228->regmap, DAC_INIT_CTRL2, DAC_VDL_MASK, val);
+ val = DAC_WL_32BITS | DAC_RST_DIS;
+ regmap_update_bits(rk3228->regmap, DAC_INIT_CTRL3,
+ DAC_WL_MASK | DAC_RST_MASK, val);
+
+ return 0;
+}
+
+static int rk3228_pcm_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+
+ return rk3228_codec_open_playback(component);
+}
+
+static void rk3228_pcm_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+
+ rk3228_codec_close_playback(component);
+}
+
+static struct snd_soc_dai_ops rk3228_dai_ops = {
+ .hw_params = rk3228_hw_params,
+ .set_fmt = rk3228_set_dai_fmt,
+ .mute_stream = rk3228_mute_stream,
+ .startup = rk3228_pcm_startup,
+ .shutdown = rk3228_pcm_shutdown,
+};
+
+static struct snd_soc_dai_driver rk3228_dai[] = {
+ {
+ .name = "rk3228-hifi",
+ .id = RK3228_HIFI,
+ .playback = {
+ .stream_name = "HIFI Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE),
+ },
+ /*.capture = {
+ .stream_name = "HIFI Capture",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE),
+ },*/
+ .ops = &rk3228_dai_ops,
+ },
+};
+
+static int rk3228_codec_probe(struct snd_soc_component *component)
+{
+ rk3228_codec_reset(component);
+ rk3228_codec_power_on(component, 0);
+
+ return 0;
+}
+
+static void rk3228_codec_remove(struct snd_soc_component *component)
+{
+ rk3228_codec_close_playback(component);
+ rk3228_codec_power_off(component, 0);
+}
+
+static struct snd_soc_component_driver soc_codec_dev_rk3228 = {
+ .probe = rk3228_codec_probe,
+ .remove = rk3228_codec_remove,
+};
+
+static bool rk3228_codec_write_read_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CODEC_RESET:
+ case DAC_INIT_CTRL1:
+ case DAC_INIT_CTRL2:
+ case DAC_INIT_CTRL3:
+ case DAC_PRECHARGE_CTRL:
+ case DAC_PWR_CTRL:
+ case DAC_CLK_CTRL:
+ case HPMIX_CTRL:
+ case DAC_SELECT:
+ case HPOUT_CTRL:
+ case HPOUTL_GAIN_CTRL:
+ case HPOUTR_GAIN_CTRL:
+ case HPOUT_POP_CTRL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rk3228_codec_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CODEC_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config rk3228_codec_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = HPOUT_POP_CTRL,
+ .writeable_reg = rk3228_codec_write_read_reg,
+ .readable_reg = rk3228_codec_write_read_reg,
+ .volatile_reg = rk3228_codec_volatile_reg,
+ .reg_defaults = rk3228_codec_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(rk3228_codec_reg_defaults),
+ .cache_type = REGCACHE_FLAT,
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id rk3228codec_of_match[] = {
+ { .compatible = "rockchip,rk3228-codec", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rk3228codec_of_match);
+#endif
+
+static int rk3228_platform_probe(struct platform_device *pdev)
+{
+ struct device_node *rk3228_np = pdev->dev.of_node;
+ struct rk3228_codec_priv *rk3228;
+ struct resource *res;
+ void __iomem *base;
+ int ret = 0;
+
+ rk3228 = devm_kzalloc(&pdev->dev, sizeof(*rk3228), GFP_KERNEL);
+ if (!rk3228)
+ return -ENOMEM;
+
+ rk3228->mclk = devm_clk_get(&pdev->dev, "mclk");
+ if (PTR_ERR(rk3228->mclk) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ rk3228->pclk = devm_clk_get(&pdev->dev, "pclk");
+ if (IS_ERR(rk3228->pclk))
+ return PTR_ERR(rk3228->pclk);
+
+ rk3228->sclk = devm_clk_get(&pdev->dev, "sclk");
+ if (IS_ERR(rk3228->sclk))
+ return PTR_ERR(rk3228->sclk);
+
+ rk3228->spk_en_gpio = devm_gpiod_get_optional(&pdev->dev,
+ "spk-en",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(rk3228->spk_en_gpio))
+ return PTR_ERR(rk3228->spk_en_gpio);
+
+ ret = of_property_read_u32(rk3228_np, "spk-depop-time-ms",
+ &rk3228->spk_depop_time);
+ if (ret < 0) {
+ dev_info(&pdev->dev, "spk_depop_time use default value.\n");
+ rk3228->spk_depop_time = 100;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ ret = clk_prepare_enable(rk3228->mclk);
+ if (ret)
+ return ret;
+
+ ret = clk_prepare_enable(rk3228->pclk);
+ if (ret < 0)
+ goto err_pclk;
+
+ ret = clk_prepare_enable(rk3228->sclk);
+ if (ret)
+ goto err_sclk;
+
+ clk_set_rate(rk3228->sclk, INITIAL_FREQ);
+
+ rk3228->regmap = devm_regmap_init_mmio(&pdev->dev, base,
+ &rk3228_codec_regmap_config);
+ if (IS_ERR(rk3228->regmap)) {
+ ret = PTR_ERR(rk3228->regmap);
+ goto err_clk;
+ }
+
+ platform_set_drvdata(pdev, rk3228);
+
+ ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_dev_rk3228,
+ rk3228_dai, ARRAY_SIZE(rk3228_dai));
+ if (!ret)
+ return 0;
+
+err_clk:
+ clk_disable_unprepare(rk3228->sclk);
+err_sclk:
+ clk_disable_unprepare(rk3228->pclk);
+err_pclk:
+ clk_disable_unprepare(rk3228->mclk);
+
+ return ret;
+}
+
+static int rk3228_platform_remove(struct platform_device *pdev)
+{
+ struct rk3228_codec_priv *rk3228 = platform_get_drvdata(pdev);
+
+ if (!IS_ERR(rk3228->mclk))
+ clk_disable_unprepare(rk3228->mclk);
+
+ if (!IS_ERR(rk3228->pclk))
+ clk_disable_unprepare(rk3228->pclk);
+
+ if (!IS_ERR(rk3228->sclk))
+ clk_disable_unprepare(rk3228->sclk);
+
+ return 0;
+}
+
+static struct platform_driver rk3228_codec_driver = {
+ .driver = {
+ .name = "rk3228-codec",
+ .of_match_table = of_match_ptr(rk3228codec_of_match),
+ },
+ .probe = rk3228_platform_probe,
+ .remove = rk3228_platform_remove,
+};
+module_platform_driver(rk3228_codec_driver);
+
+MODULE_AUTHOR("Sugar Zhang <sugar.zhang@rock-chips.com>");
+MODULE_DESCRIPTION("ASoC rk3228 codec driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/codecs/rk3228_codec.h b/sound/soc/codecs/rk3228_codec.h
new file mode 100644
index 000000000..7283d0ba8
--- /dev/null
+++ b/sound/soc/codecs/rk3228_codec.h
@@ -0,0 +1,218 @@
+/*
+ * rk3228_codec.h -- rk3228 ALSA Soc Audio driver
+ *
+ * Copyright (c) 2018, Fuzhou Rockchip Electronics Co., Ltd All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef _RK3228_CODEC_H
+#define _RK3228_CODEC_H
+
+/* codec register */
+#define CODEC_RESET (0x00 << 2)
+#define DAC_INIT_CTRL1 (0x03 << 2)
+#define DAC_INIT_CTRL2 (0x04 << 2)
+#define DAC_INIT_CTRL3 (0x05 << 2)
+#define DAC_PRECHARGE_CTRL (0x22 << 2)
+#define DAC_PWR_CTRL (0x23 << 2)
+#define DAC_CLK_CTRL (0x24 << 2)
+#define HPMIX_CTRL (0x25 << 2)
+#define DAC_SELECT (0x26 << 2)
+#define HPOUT_CTRL (0x27 << 2)
+#define HPOUTL_GAIN_CTRL (0x28 << 2)
+#define HPOUTR_GAIN_CTRL (0x29 << 2)
+#define HPOUT_POP_CTRL (0x2a << 2)
+
+/* REG00: CODEC_RESET */
+#define PWR_RST_BYPASS_DIS BIT(6)
+#define PWR_RST_BYPASS_EN BIT(6)
+#define DIG_CORE_RST (0 << 1)
+#define DIG_CORE_WORK BIT(1)
+#define SYS_RST (0)
+#define SYS_WORK BIT(0)
+
+/* REG03: DAC_INIT_CTRL1 */
+#define PIN_DIRECTION_MASK BIT(5)
+#define PIN_DIRECTION_IN (0 << 5)
+#define PIN_DIRECTION_OUT BIT(5)
+#define DAC_I2S_MODE_MASK BIT(4)
+#define DAC_I2S_MODE_SLAVE (0 << 4)
+#define DAC_I2S_MODE_MASTER BIT(4)
+
+/* REG04: DAC_INIT_CTRL2 */
+#define DAC_I2S_LRP_MASK BIT(7)
+#define DAC_I2S_LRP_NORMAL (0 << 7)
+#define DAC_I2S_LRP_REVERSAL BIT(7)
+#define DAC_VDL_MASK (3 << 5)
+#define DAC_VDL_16BITS (0 << 5)
+#define DAC_VDL_20BITS BIT(5)
+#define DAC_VDL_24BITS (2 << 5)
+#define DAC_VDL_32BITS (3 << 5)
+#define DAC_MODE_MASK (3 << 3)
+#define DAC_MODE_RJM (0 << 3)
+#define DAC_MODE_LJM BIT(3)
+#define DAC_MODE_I2S (2 << 3)
+#define DAC_MODE_PCM (3 << 3)
+#define DAC_LR_SWAP_MASK BIT(2)
+#define DAC_LR_SWAP_DIS (0 << 2)
+#define DAC_LR_SWAP_EN BIT(2)
+
+/* REG05: DAC_INIT_CTRL3 */
+#define DAC_WL_MASK (3 << 2)
+#define DAC_WL_16BITS (0 << 2)
+#define DAC_WL_20BITS BIT(2)
+#define DAC_WL_24BITS (2 << 2)
+#define DAC_WL_32BITS (3 << 2)
+#define DAC_RST_MASK BIT(1)
+#define DAC_RST_EN (0 << 1)
+#define DAC_RST_DIS BIT(1)
+#define DAC_BCP_MASK BIT(0)
+#define DAC_BCP_NORMAL (0 << 0)
+#define DAC_BCP_REVERSAL BIT(0)
+
+/* REG22: DAC_PRECHARGE_CTRL */
+#define DAC_CHARGE_PRECHARGE BIT(7)
+#define DAC_CHARGE_DISCHARGE (0 << 7)
+#define DAC_CHARGE_XCHARGE_MASK BIT(7)
+#define DAC_CHARGE_CURRENT_64I BIT(6)
+#define DAC_CHARGE_CURRENT_64I_MASK BIT(6)
+#define DAC_CHARGE_CURRENT_32I BIT(5)
+#define DAC_CHARGE_CURRENT_32I_MASK BIT(5)
+#define DAC_CHARGE_CURRENT_16I BIT(4)
+#define DAC_CHARGE_CURRENT_16I_MASK BIT(4)
+#define DAC_CHARGE_CURRENT_08I BIT(3)
+#define DAC_CHARGE_CURRENT_08I_MASK BIT(3)
+#define DAC_CHARGE_CURRENT_04I BIT(2)
+#define DAC_CHARGE_CURRENT_04I_MASK BIT(2)
+#define DAC_CHARGE_CURRENT_02I BIT(1)
+#define DAC_CHARGE_CURRENT_02I_MASK BIT(1)
+#define DAC_CHARGE_CURRENT_I BIT(0)
+#define DAC_CHARGE_CURRENT_I_MASK BIT(0)
+#define DAC_CHARGE_CURRENT_ALL_MASK (0x7f)
+#define DAC_CHARGE_CURRENT_ALL_OFF (0x0)
+#define DAC_CHARGE_CURRENT_ALL_ON (0x7f)
+
+/* REG23: DAC_PWR_CTRL */
+#define DAC_PWR_OFF (0 << 6)
+#define DAC_PWR_ON BIT(6)
+#define DAC_PWR_MASK BIT(6)
+#define DACL_PATH_REFV_OFF (0 << 5)
+#define DACL_PATH_REFV_ON BIT(5)
+#define DACL_PATH_REFV_MASK BIT(5)
+#define HPOUTL_ZERO_CROSSING_OFF (0 << 4)
+#define HPOUTL_ZERO_CROSSING_ON BIT(4)
+#define DACR_PATH_REFV_OFF (0 << 1)
+#define DACR_PATH_REFV_ON BIT(1)
+#define DACR_PATH_REFV_MASK BIT(1)
+#define HPOUTR_ZERO_CROSSING_OFF (0 << 0)
+#define HPOUTR_ZERO_CROSSING_ON BIT(0)
+
+/* REG24: DAC_CLK_CTRL */
+#define DACL_REFV_OFF (0 << 7)
+#define DACL_REFV_ON BIT(7)
+#define DACL_REFV_MASK BIT(7)
+#define DACL_CLK_OFF (0 << 6)
+#define DACL_CLK_ON BIT(6)
+#define DACL_CLK_MASK BIT(6)
+#define DACL_OFF (0 << 5)
+#define DACL_ON BIT(5)
+#define DACL_MASK BIT(5)
+#define DACL_INIT_OFF (0 << 4)
+#define DACL_INIT_ON BIT(4)
+#define DACL_INIT_MASK BIT(4)
+#define DACR_REFV_OFF (0 << 3)
+#define DACR_REFV_ON BIT(3)
+#define DACR_REFV_MASK BIT(3)
+#define DACR_CLK_OFF (0 << 2)
+#define DACR_CLK_ON BIT(2)
+#define DACR_CLK_MASK BIT(2)
+#define DACR_OFF (0 << 1)
+#define DACR_ON BIT(1)
+#define DACR_MASK BIT(1)
+#define DACR_INIT_OFF (0 << 0)
+#define DACR_INIT_ON BIT(0)
+#define DACR_INIT_MASK BIT(0)
+
+/* REG25: HPMIX_CTRL*/
+#define HPMIXL_DIS (0 << 6)
+#define HPMIXL_EN BIT(6)
+#define HPMIXL_MASK BIT(6)
+#define HPMIXL_INIT_DIS (0 << 5)
+#define HPMIXL_INIT_EN BIT(5)
+#define HPMIXL_INIT_MASK BIT(5)
+#define HPMIXL_INIT2_DIS (0 << 4)
+#define HPMIXL_INIT2_EN BIT(4)
+#define HPMIXL_INIT2_MASK BIT(4)
+#define HPMIXR_DIS (0 << 2)
+#define HPMIXR_EN BIT(2)
+#define HPMIXR_MASK BIT(2)
+#define HPMIXR_INIT_DIS (0 << 1)
+#define HPMIXR_INIT_EN BIT(1)
+#define HPMIXR_INIT_MASK BIT(1)
+#define HPMIXR_INIT2_DIS (0 << 0)
+#define HPMIXR_INIT2_EN BIT(0)
+#define HPMIXR_INIT2_MASK BIT(0)
+
+/* REG26: DAC_SELECT */
+#define DACL_SELECT BIT(4)
+#define DACL_SELECT_MASK BIT(4)
+#define DACL_DESELECT (0 << 4)
+#define DACR_SELECT BIT(0)
+#define DACR_SELECT_MASK BIT(0)
+#define DACR_DESELECT (0 << 0)
+
+/* REG27: HPOUT_CTRL */
+#define HPOUTL_DIS (0 << 7)
+#define HPOUTL_EN BIT(7)
+#define HPOUTL_MASK BIT(7)
+#define HPOUTL_INIT_DIS (0 << 6)
+#define HPOUTL_INIT_EN BIT(6)
+#define HPOUTL_INIT_MASK BIT(6)
+#define HPOUTL_MUTE (0 << 5)
+#define HPOUTL_UNMUTE BIT(5)
+#define HPOUTL_MUTE_MASK BIT(5)
+#define HPOUTR_DIS (0 << 4)
+#define HPOUTR_EN BIT(4)
+#define HPOUTR_MASK BIT(4)
+#define HPOUTR_INIT_DIS (0 << 3)
+#define HPOUTR_INIT_EN BIT(3)
+#define HPOUTR_INIT_MASK BIT(3)
+#define HPOUTR_MUTE (0 << 2)
+#define HPOUTR_UNMUTE BIT(2)
+#define HPOUTR_MUTE_MASK BIT(2)
+
+/* REG28: HPOUTL_GAIN_CTRL */
+#define HPOUTL_GAIN_MASK (0X1f << 0)
+
+/* REG29: HPOUTR_GAIN_CTRL */
+#define HPOUTR_GAIN_MASK (0X1f << 0)
+
+/* REG2a: HPOUT_POP_CTRL */
+#define HPOUTR_POP_XCHARGE BIT(4)
+#define HPOUTR_POP_WORK (2 << 4)
+#define HPOUTR_POP_MASK (3 << 4)
+#define HPOUTL_POP_XCHARGE BIT(0)
+#define HPOUTL_POP_WORK (2 << 0)
+#define HPOUTL_POP_MASK (3 << 0)
+
+#define RK3228_HIFI (0)
+
+struct rk3228_reg_msk_val {
+ unsigned int reg;
+ unsigned int msk;
+ unsigned int val;
+};
+
+#endif
--
2.25.1
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