[PATCH v5 2/5] ASoC: codecs: Add msm8916-wcd digital codec

Srinivas Kandagatla
2016-09-08T13:04:53Z

msm8916-wcd codec is found in Qualcomm msm8916 and apq8016 processors.
This codec IP is split in to two parts(Digital & Analog).
Analog part is integrated in to PMIC PM8916 and the digital part is
integrated into Application processor. Data transfer between Analog and
Digital Die is done via a internal bus called PDM.

This patch adds support to Digital part of the Codec which is integrated
into Application Processor.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
.../bindings/sound/qcom,msm8916-wcd-digital.txt | 20 +
sound/soc/codecs/Kconfig | 3 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/msm8916-wcd-digital.c | 920 +++++++++++++++++++++
4 files changed, 945 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-digital.txt
create mode 100644 sound/soc/codecs/msm8916-wcd-digital.c

diff --git a/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-digital.txt b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-digital.txt
new file mode 100644
index 0000000..6342549
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-digital.txt
@@ -0,0 +1,20 @@
+msm8916 digital audio CODEC
+
+## Bindings for codec core in lpass:
+
+Required properties
+ - compatible = "qcom,msm8916-wcd-digital-codec";
+ - reg: address space for lpass codec.
+ - clocks: Handle to mclk and ahbclk
+ - clock-names: should be "mclk", "ahbix-clk".
+
+Example:
+
+lpass_codec: codec{
+ compatible = "qcom,msm8916-wcd-digital-codec";
+ reg = <0x0771c000 0x400>;
+ clocks = <&gcc GCC_ULTAUDIO_AHBFABRIC_IXFABRIC_CLK>,
+ <&gcc GCC_CODEC_DIGCODEC_CLK>;
+ clock-names = "ahbix-clk", "mclk";
+ #sound-dai-cells = <1>;
+};
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 45636f3..1836837 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -582,6 +582,9 @@ config SND_SOC_MSM8916_WCD_ANALOG
tristate "Qualcomm MSM8916 WCD Analog Codec"
depends on SPMI || COMPILE_TEST

+config SND_SOC_MSM8916_WCD_DIGITAL
+ tristate "Qualcomm MSM8916 WCD DIGITAL Codec"
+
config SND_SOC_PCM1681
tristate "Texas Instruments PCM1681 CODEC"
depends on I2C
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index ebcb907..744110c 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -87,6 +87,7 @@ snd-soc-max9860-objs := max9860.o
snd-soc-mc13783-objs := mc13783.o
snd-soc-ml26124-objs := ml26124.o
snd-soc-msm8916-analog-objs := msm8916-wcd-analog.o
+snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o
snd-soc-nau8825-objs := nau8825.o
snd-soc-hdmi-codec-objs := hdmi-codec.o
snd-soc-pcm1681-objs := pcm1681.o
@@ -308,6 +309,7 @@ obj-$(CONFIG_SND_SOC_MAX9860) += snd-soc-max9860.o
obj-$(CONFIG_SND_SOC_MC13783) += snd-soc-mc13783.o
obj-$(CONFIG_SND_SOC_ML26124) += snd-soc-ml26124.o
obj-$(CONFIG_SND_SOC_MSM8916_WCD_ANALOG) +=snd-soc-msm8916-analog.o
+obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o
obj-$(CONFIG_SND_SOC_NAU8825) += snd-soc-nau8825.o
obj-$(CONFIG_SND_SOC_HDMI_CODEC) += snd-soc-hdmi-codec.o
obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o
diff --git a/sound/soc/codecs/msm8916-wcd-digital.c b/sound/soc/codecs/msm8916-wcd-digital.c
new file mode 100644
index 0000000..cfb1d06
--- /dev/null
+++ b/sound/soc/codecs/msm8916-wcd-digital.c
@@ -0,0 +1,920 @@
+/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that 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.
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+
+#define LPASS_CDC_CLK_RX_RESET_CTL (0x000)
+#define LPASS_CDC_CLK_TX_RESET_B1_CTL (0x004)
+#define CLK_RX_RESET_B1_CTL_TX1_RESET_MASK BIT(0)
+#define CLK_RX_RESET_B1_CTL_TX2_RESET_MASK BIT(1)
+#define LPASS_CDC_CLK_DMIC_B1_CTL (0x008)
+#define DMIC_B1_CTL_DMIC0_CLK_SEL_MASK GENMASK(3, 1)
+#define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV2 (0x0 << 1)
+#define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV3 (0x1 << 1)
+#define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV4 (0x2 << 1)
+#define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV6 (0x3 << 1)
+#define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV16 (0x4 << 1)
+#define DMIC_B1_CTL_DMIC0_CLK_EN_MASK BIT(0)
+#define DMIC_B1_CTL_DMIC0_CLK_EN_ENABLE BIT(0)
+
+#define LPASS_CDC_CLK_RX_I2S_CTL (0x00C)
+#define RX_I2S_CTL_RX_I2S_MODE_MASK BIT(5)
+#define RX_I2S_CTL_RX_I2S_MODE_16 BIT(5)
+#define RX_I2S_CTL_RX_I2S_MODE_32 0
+#define RX_I2S_CTL_RX_I2S_FS_RATE_MASK GENMASK(2, 0)
+#define RX_I2S_CTL_RX_I2S_FS_RATE_F_8_KHZ 0x0
+#define RX_I2S_CTL_RX_I2S_FS_RATE_F_16_KHZ 0x1
+#define RX_I2S_CTL_RX_I2S_FS_RATE_F_32_KHZ 0x2
+#define RX_I2S_CTL_RX_I2S_FS_RATE_F_48_KHZ 0x3
+#define RX_I2S_CTL_RX_I2S_FS_RATE_F_96_KHZ 0x4
+#define RX_I2S_CTL_RX_I2S_FS_RATE_F_192_KHZ 0x5
+#define LPASS_CDC_CLK_TX_I2S_CTL (0x010)
+#define TX_I2S_CTL_TX_I2S_MODE_MASK BIT(5)
+#define TX_I2S_CTL_TX_I2S_MODE_16 BIT(5)
+#define TX_I2S_CTL_TX_I2S_MODE_32 0
+#define TX_I2S_CTL_TX_I2S_FS_RATE_MASK GENMASK(2, 0)
+#define TX_I2S_CTL_TX_I2S_FS_RATE_F_8_KHZ 0x0
+#define TX_I2S_CTL_TX_I2S_FS_RATE_F_16_KHZ 0x1
+#define TX_I2S_CTL_TX_I2S_FS_RATE_F_32_KHZ 0x2
+#define TX_I2S_CTL_TX_I2S_FS_RATE_F_48_KHZ 0x3
+#define TX_I2S_CTL_TX_I2S_FS_RATE_F_96_KHZ 0x4
+#define TX_I2S_CTL_TX_I2S_FS_RATE_F_192_KHZ 0x5
+
+#define LPASS_CDC_CLK_OTHR_RESET_B1_CTL (0x014)
+#define LPASS_CDC_CLK_TX_CLK_EN_B1_CTL (0x018)
+#define LPASS_CDC_CLK_OTHR_CTL (0x01C)
+#define LPASS_CDC_CLK_RX_B1_CTL (0x020)
+#define LPASS_CDC_CLK_MCLK_CTL (0x024)
+#define MCLK_CTL_MCLK_EN_MASK BIT(0)
+#define MCLK_CTL_MCLK_EN_ENABLE BIT(0)
+#define MCLK_CTL_MCLK_EN_DISABLE 0
+#define LPASS_CDC_CLK_PDM_CTL (0x028)
+#define LPASS_CDC_CLK_PDM_CTL_PDM_EN_MASK BIT(0)
+#define LPASS_CDC_CLK_PDM_CTL_PDM_EN BIT(0)
+#define LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_MASK BIT(1)
+#define LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_FB BIT(1)
+#define LPASS_CDC_CLK_PDM_CTL_PDM_CLK_PDM_CLK 0
+
+#define LPASS_CDC_CLK_SD_CTL (0x02C)
+#define LPASS_CDC_RX1_B1_CTL (0x040)
+#define LPASS_CDC_RX2_B1_CTL (0x060)
+#define LPASS_CDC_RX3_B1_CTL (0x080)
+#define LPASS_CDC_RX1_B2_CTL (0x044)
+#define LPASS_CDC_RX2_B2_CTL (0x064)
+#define LPASS_CDC_RX3_B2_CTL (0x084)
+#define LPASS_CDC_RX1_B3_CTL (0x048)
+#define LPASS_CDC_RX2_B3_CTL (0x068)
+#define LPASS_CDC_RX3_B3_CTL (0x088)
+#define LPASS_CDC_RX1_B4_CTL (0x04C)
+#define LPASS_CDC_RX2_B4_CTL (0x06C)
+#define LPASS_CDC_RX3_B4_CTL (0x08C)
+#define LPASS_CDC_RX1_B5_CTL (0x050)
+#define LPASS_CDC_RX2_B5_CTL (0x070)
+#define LPASS_CDC_RX3_B5_CTL (0x090)
+#define LPASS_CDC_RX1_B6_CTL (0x054)
+#define RXn_B6_CTL_MUTE_MASK BIT(0)
+#define RXn_B6_CTL_MUTE_ENABLE BIT(0)
+#define RXn_B6_CTL_MUTE_DISABLE 0
+#define LPASS_CDC_RX2_B6_CTL (0x074)
+#define LPASS_CDC_RX3_B6_CTL (0x094)
+#define LPASS_CDC_RX1_VOL_CTL_B1_CTL (0x058)
+#define LPASS_CDC_RX2_VOL_CTL_B1_CTL (0x078)
+#define LPASS_CDC_RX3_VOL_CTL_B1_CTL (0x098)
+#define LPASS_CDC_RX1_VOL_CTL_B2_CTL (0x05C)
+#define LPASS_CDC_RX2_VOL_CTL_B2_CTL (0x07C)
+#define LPASS_CDC_RX3_VOL_CTL_B2_CTL (0x09C)
+#define LPASS_CDC_TOP_GAIN_UPDATE (0x0A0)
+#define LPASS_CDC_TOP_CTL (0x0A4)
+#define TOP_CTL_DIG_MCLK_FREQ_MASK BIT(0)
+#define TOP_CTL_DIG_MCLK_FREQ_F_12_288MHZ 0
+#define TOP_CTL_DIG_MCLK_FREQ_F_9_6MHZ BIT(0)
+
+#define LPASS_CDC_DEBUG_DESER1_CTL (0x0E0)
+#define LPASS_CDC_DEBUG_DESER2_CTL (0x0E4)
+#define LPASS_CDC_DEBUG_B1_CTL_CFG (0x0E8)
+#define LPASS_CDC_DEBUG_B2_CTL_CFG (0x0EC)
+#define LPASS_CDC_DEBUG_B3_CTL_CFG (0x0F0)
+#define LPASS_CDC_IIR1_GAIN_B1_CTL (0x100)
+#define LPASS_CDC_IIR2_GAIN_B1_CTL (0x140)
+#define LPASS_CDC_IIR1_GAIN_B2_CTL (0x104)
+#define LPASS_CDC_IIR2_GAIN_B2_CTL (0x144)
+#define LPASS_CDC_IIR1_GAIN_B3_CTL (0x108)
+#define LPASS_CDC_IIR2_GAIN_B3_CTL (0x148)
+#define LPASS_CDC_IIR1_GAIN_B4_CTL (0x10C)
+#define LPASS_CDC_IIR2_GAIN_B4_CTL (0x14C)
+#define LPASS_CDC_IIR1_GAIN_B5_CTL (0x110)
+#define LPASS_CDC_IIR2_GAIN_B5_CTL (0x150)
+#define LPASS_CDC_IIR1_GAIN_B6_CTL (0x114)
+#define LPASS_CDC_IIR2_GAIN_B6_CTL (0x154)
+#define LPASS_CDC_IIR1_GAIN_B7_CTL (0x118)
+#define LPASS_CDC_IIR2_GAIN_B7_CTL (0x158)
+#define LPASS_CDC_IIR1_GAIN_B8_CTL (0x11C)
+#define LPASS_CDC_IIR2_GAIN_B8_CTL (0x15C)
+#define LPASS_CDC_IIR1_CTL (0x120)
+#define LPASS_CDC_IIR2_CTL (0x160)
+#define LPASS_CDC_IIR1_GAIN_TIMER_CTL (0x124)
+#define LPASS_CDC_IIR2_GAIN_TIMER_CTL (0x164)
+#define LPASS_CDC_IIR1_COEF_B1_CTL (0x128)
+#define LPASS_CDC_IIR2_COEF_B1_CTL (0x168)
+#define LPASS_CDC_IIR1_COEF_B2_CTL (0x12C)
+#define LPASS_CDC_IIR2_COEF_B2_CTL (0x16C)
+#define LPASS_CDC_CONN_RX1_B1_CTL (0x180)
+#define LPASS_CDC_CONN_RX1_B2_CTL (0x184)
+#define LPASS_CDC_CONN_RX1_B3_CTL (0x188)
+#define LPASS_CDC_CONN_RX2_B1_CTL (0x18C)
+#define LPASS_CDC_CONN_RX2_B2_CTL (0x190)
+#define LPASS_CDC_CONN_RX2_B3_CTL (0x194)
+#define LPASS_CDC_CONN_RX3_B1_CTL (0x198)
+#define LPASS_CDC_CONN_RX3_B2_CTL (0x19C)
+#define LPASS_CDC_CONN_TX_B1_CTL (0x1A0)
+#define LPASS_CDC_CONN_EQ1_B1_CTL (0x1A8)
+#define LPASS_CDC_CONN_EQ1_B2_CTL (0x1AC)
+#define LPASS_CDC_CONN_EQ1_B3_CTL (0x1B0)
+#define LPASS_CDC_CONN_EQ1_B4_CTL (0x1B4)
+#define LPASS_CDC_CONN_EQ2_B1_CTL (0x1B8)
+#define LPASS_CDC_CONN_EQ2_B2_CTL (0x1BC)
+#define LPASS_CDC_CONN_EQ2_B3_CTL (0x1C0)
+#define LPASS_CDC_CONN_EQ2_B4_CTL (0x1C4)
+#define LPASS_CDC_CONN_TX_I2S_SD1_CTL (0x1C8)
+#define LPASS_CDC_TX1_VOL_CTL_TIMER (0x280)
+#define LPASS_CDC_TX2_VOL_CTL_TIMER (0x2A0)
+#define LPASS_CDC_TX1_VOL_CTL_GAIN (0x284)
+#define LPASS_CDC_TX2_VOL_CTL_GAIN (0x2A4)
+#define LPASS_CDC_TX1_VOL_CTL_CFG (0x288)
+#define TX_VOL_CTL_CFG_MUTE_EN_MASK BIT(0)
+#define TX_VOL_CTL_CFG_MUTE_EN_ENABLE BIT(0)
+
+#define LPASS_CDC_TX2_VOL_CTL_CFG (0x2A8)
+#define LPASS_CDC_TX1_MUX_CTL (0x28C)
+#define TX_MUX_CTL_CUT_OFF_FREQ_MASK GENMASK(5, 4)
+#define TX_MUX_CTL_CUT_OFF_FREQ_SHIFT 4
+#define TX_MUX_CTL_CF_NEG_3DB_4HZ (0x0 << 4)
+#define TX_MUX_CTL_CF_NEG_3DB_75HZ (0x1 << 4)
+#define TX_MUX_CTL_CF_NEG_3DB_150HZ (0x2 << 4)
+#define TX_MUX_CTL_HPF_BP_SEL_MASK BIT(3)
+#define TX_MUX_CTL_HPF_BP_SEL_BYPASS BIT(3)
+#define TX_MUX_CTL_HPF_BP_SEL_NO_BYPASS 0
+
+#define LPASS_CDC_TX2_MUX_CTL (0x2AC)
+#define LPASS_CDC_TX1_CLK_FS_CTL (0x290)
+#define LPASS_CDC_TX2_CLK_FS_CTL (0x2B0)
+#define LPASS_CDC_TX1_DMIC_CTL (0x294)
+#define LPASS_CDC_TX2_DMIC_CTL (0x2B4)
+#define TXN_DMIC_CTL_CLK_SEL_MASK GENMASK(2, 0)
+#define TXN_DMIC_CTL_CLK_SEL_DIV2 0x0
+#define TXN_DMIC_CTL_CLK_SEL_DIV3 0x1
+#define TXN_DMIC_CTL_CLK_SEL_DIV4 0x2
+#define TXN_DMIC_CTL_CLK_SEL_DIV6 0x3
+#define TXN_DMIC_CTL_CLK_SEL_DIV16 0x4
+
+#define MSM8916_WCD_DIGITAL_RATES (SNDRV_PCM_RATE_8000 | \
+ SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_48000)
+#define MSM8916_WCD_DIGITAL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+struct msm8916_wcd_digital_priv {
+ struct clk *ahbclk, *mclk;
+};
+
+static const unsigned long rx_gain_reg[] = {
+ LPASS_CDC_RX1_VOL_CTL_B2_CTL,
+ LPASS_CDC_RX2_VOL_CTL_B2_CTL,
+ LPASS_CDC_RX3_VOL_CTL_B2_CTL,
+};
+
+static const unsigned long tx_gain_reg[] = {
+ LPASS_CDC_TX1_VOL_CTL_GAIN,
+ LPASS_CDC_TX2_VOL_CTL_GAIN,
+};
+
+static const char *const rx_mix1_text[] = {
+ "ZERO", "IIR1", "IIR2", "RX1", "RX2", "RX3"
+};
+
+static const char *const dec_mux_text[] = {
+ "ZERO", "ADC1", "ADC2", "ADC3", "DMIC1", "DMIC2"
+};
+static const char *const rx_mix2_text[] = { "ZERO", "IIR1", "IIR2" };
+static const char *const adc2_mux_text[] = { "ZERO", "INP2", "INP3" };
+
+/* RX1 MIX1 */
+static const struct soc_enum rx_mix1_inp_enum[] = {
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX1_B1_CTL, 0, 6, rx_mix1_text),
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX1_B1_CTL, 3, 6, rx_mix1_text),
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX1_B2_CTL, 0, 6, rx_mix1_text),
+};
+
+/* RX1 MIX2 */
+static const struct soc_enum rx_mix2_inp1_chain_enum = SOC_ENUM_SINGLE(
+ LPASS_CDC_CONN_RX1_B3_CTL, 0, 3, rx_mix2_text);
+
+/* RX2 MIX1 */
+static const struct soc_enum rx2_mix1_inp_enum[] = {
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX2_B1_CTL, 0, 6, rx_mix1_text),
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX2_B1_CTL, 3, 6, rx_mix1_text),
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX2_B1_CTL, 0, 6, rx_mix1_text),
+};
+
+/* RX2 MIX2 */
+static const struct soc_enum rx2_mix2_inp1_chain_enum = SOC_ENUM_SINGLE(
+ LPASS_CDC_CONN_RX2_B3_CTL, 0, 3, rx_mix2_text);
+
+/* RX3 MIX1 */
+static const struct soc_enum rx3_mix1_inp_enum[] = {
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX3_B1_CTL, 0, 6, rx_mix1_text),
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX3_B1_CTL, 3, 6, rx_mix1_text),
+ SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX3_B1_CTL, 0, 6, rx_mix1_text),
+};
+
+/* DEC */
+static const struct soc_enum dec1_mux_enum = SOC_ENUM_SINGLE(
+ LPASS_CDC_CONN_TX_B1_CTL, 0, 6, dec_mux_text);
+static const struct soc_enum dec2_mux_enum = SOC_ENUM_SINGLE(
+ LPASS_CDC_CONN_TX_B1_CTL, 3, 6, dec_mux_text);
+
+/* RDAC2 MUX */
+static const struct snd_kcontrol_new dec1_mux = SOC_DAPM_ENUM(
+ "DEC1 MUX Mux", dec1_mux_enum);
+static const struct snd_kcontrol_new dec2_mux = SOC_DAPM_ENUM(
+ "DEC2 MUX Mux", dec2_mux_enum);
+static const struct snd_kcontrol_new rx_mix1_inp1_mux = SOC_DAPM_ENUM(
+ "RX1 MIX1 INP1 Mux", rx_mix1_inp_enum[0]);
+static const struct snd_kcontrol_new rx_mix1_inp2_mux = SOC_DAPM_ENUM(
+ "RX1 MIX1 INP2 Mux", rx_mix1_inp_enum[1]);
+static const struct snd_kcontrol_new rx_mix1_inp3_mux = SOC_DAPM_ENUM(
+ "RX1 MIX1 INP3 Mux", rx_mix1_inp_enum[2]);
+static const struct snd_kcontrol_new rx2_mix1_inp1_mux = SOC_DAPM_ENUM(
+ "RX2 MIX1 INP1 Mux", rx2_mix1_inp_enum[0]);
+static const struct snd_kcontrol_new rx2_mix1_inp2_mux = SOC_DAPM_ENUM(
+ "RX2 MIX1 INP2 Mux", rx2_mix1_inp_enum[1]);
+static const struct snd_kcontrol_new rx2_mix1_inp3_mux = SOC_DAPM_ENUM(
+ "RX2 MIX1 INP3 Mux", rx2_mix1_inp_enum[2]);
+static const struct snd_kcontrol_new rx3_mix1_inp1_mux = SOC_DAPM_ENUM(
+ "RX3 MIX1 INP1 Mux", rx3_mix1_inp_enum[0]);
+static const struct snd_kcontrol_new rx3_mix1_inp2_mux = SOC_DAPM_ENUM(
+ "RX3 MIX1 INP2 Mux", rx3_mix1_inp_enum[1]);
+static const struct snd_kcontrol_new rx3_mix1_inp3_mux = SOC_DAPM_ENUM(
+ "RX3 MIX1 INP3 Mux", rx3_mix1_inp_enum[2]);
+
+/* Digital Gain control -38.4 dB to +38.4 dB in 0.3 dB steps */
+static const DECLARE_TLV_DB_SCALE(digital_gain, -3840, 30, 0);
+
+/* Cutoff Freq for High Pass Filter at -3dB */
+static const char * const hpf_cutoff_text[] = {
+ "4Hz", "75Hz", "150Hz",
+};
+
+static SOC_ENUM_SINGLE_DECL(tx1_hpf_cutoff_enum, LPASS_CDC_TX1_MUX_CTL, 4,
+ hpf_cutoff_text);
+static SOC_ENUM_SINGLE_DECL(tx2_hpf_cutoff_enum, LPASS_CDC_TX2_MUX_CTL, 4,
+ hpf_cutoff_text);
+
+/* cut off for dc blocker inside rx chain */
+static const char * const dc_blocker_cutoff_text[] = {
+ "4Hz", "75Hz", "150Hz",
+};
+
+static SOC_ENUM_SINGLE_DECL(rx1_dcb_cutoff_enum, LPASS_CDC_RX1_B4_CTL, 0,
+ dc_blocker_cutoff_text);
+static SOC_ENUM_SINGLE_DECL(rx2_dcb_cutoff_enum, LPASS_CDC_RX2_B4_CTL, 0,
+ dc_blocker_cutoff_text);
+static SOC_ENUM_SINGLE_DECL(rx3_dcb_cutoff_enum, LPASS_CDC_RX3_B4_CTL, 0,
+ dc_blocker_cutoff_text);
+
+static const struct snd_kcontrol_new msm8916_wcd_digital_snd_controls[] = {
+ SOC_SINGLE_S8_TLV("RX1 Digital Volume", LPASS_CDC_RX1_VOL_CTL_B2_CTL,
+ -128, 127, digital_gain),
+ SOC_SINGLE_S8_TLV("RX2 Digital Volume", LPASS_CDC_RX2_VOL_CTL_B2_CTL,
+ -128, 127, digital_gain),
+ SOC_SINGLE_S8_TLV("RX3 Digital Volume", LPASS_CDC_RX3_VOL_CTL_B2_CTL,
+ -128, 127, digital_gain),
+ SOC_SINGLE_S8_TLV("TX1 Digital Volume", LPASS_CDC_TX1_VOL_CTL_GAIN,
+ -128, 127, digital_gain),
+ SOC_SINGLE_S8_TLV("TX2 Digital Volume", LPASS_CDC_TX2_VOL_CTL_GAIN,
+ -128, 127, digital_gain),
+ SOC_ENUM("TX1 HPF Cutoff", tx1_hpf_cutoff_enum),
+ SOC_ENUM("TX2 HPF Cutoff", tx2_hpf_cutoff_enum),
+ SOC_SINGLE("TX1 HPF Switch", LPASS_CDC_TX1_MUX_CTL, 3, 1, 0),
+ SOC_SINGLE("TX2 HPF Switch", LPASS_CDC_TX2_MUX_CTL, 3, 1, 0),
+ SOC_ENUM("RX1 DCB Cutoff", rx1_dcb_cutoff_enum),
+ SOC_ENUM("RX2 DCB Cutoff", rx2_dcb_cutoff_enum),
+ SOC_ENUM("RX3 DCB Cutoff", rx3_dcb_cutoff_enum),
+ SOC_SINGLE("RX1 DCB Switch", LPASS_CDC_RX1_B5_CTL, 2, 1, 0),
+ SOC_SINGLE("RX2 DCB Switch", LPASS_CDC_RX2_B5_CTL, 2, 1, 0),
+ SOC_SINGLE("RX3 DCB Switch", LPASS_CDC_RX3_B5_CTL, 2, 1, 0),
+ SOC_SINGLE("RX1 Mute Switch", LPASS_CDC_RX1_B6_CTL, 0, 1, 0),
+ SOC_SINGLE("RX2 Mute Switch", LPASS_CDC_RX2_B6_CTL, 0, 1, 0),
+ SOC_SINGLE("RX3 Mute Switch", LPASS_CDC_RX3_B6_CTL, 0, 1, 0),
+};
+
+static int msm8916_wcd_digital_enable_interpolator(
+ struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ /* apply the digital gain after the interpolator is enabled */
+ usleep_range(10000, 10100);
+ snd_soc_write(codec, rx_gain_reg[w->shift],
+ snd_soc_read(codec, rx_gain_reg[w->shift]));
+ break;
+ }
+ return 0;
+}
+
+static int msm8916_wcd_digital_enable_dec(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+ unsigned int decimator = w->shift + 1;
+ u16 dec_reset_reg, tx_vol_ctl_reg, tx_mux_ctl_reg;
+ u8 dec_hpf_cut_of_freq;
+
+ dec_reset_reg = LPASS_CDC_CLK_TX_RESET_B1_CTL;
+ tx_vol_ctl_reg = LPASS_CDC_TX1_VOL_CTL_CFG + 32 * (decimator - 1);
+ tx_mux_ctl_reg = LPASS_CDC_TX1_MUX_CTL + 32 * (decimator - 1);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ /* Enable TX digital mute */
+ snd_soc_update_bits(codec, tx_vol_ctl_reg,
+ TX_VOL_CTL_CFG_MUTE_EN_MASK,
+ TX_VOL_CTL_CFG_MUTE_EN_ENABLE);
+ dec_hpf_cut_of_freq = snd_soc_read(codec, tx_mux_ctl_reg) &
+ TX_MUX_CTL_CUT_OFF_FREQ_MASK;
+ dec_hpf_cut_of_freq >>= TX_MUX_CTL_CUT_OFF_FREQ_SHIFT;
+ if (dec_hpf_cut_of_freq != TX_MUX_CTL_CF_NEG_3DB_150HZ) {
+ /* set cut of freq to CF_MIN_3DB_150HZ (0x1) */
+ snd_soc_update_bits(codec, tx_mux_ctl_reg,
+ TX_MUX_CTL_CUT_OFF_FREQ_MASK,
+ TX_MUX_CTL_CF_NEG_3DB_150HZ);
+ }
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ /* enable HPF */
+ snd_soc_update_bits(codec, tx_mux_ctl_reg,
+ TX_MUX_CTL_HPF_BP_SEL_MASK,
+ TX_MUX_CTL_HPF_BP_SEL_NO_BYPASS);
+ /* apply the digital gain after the decimator is enabled */
+ snd_soc_write(codec, tx_gain_reg[w->shift],
+ snd_soc_read(codec, tx_gain_reg[w->shift]));
+ snd_soc_update_bits(codec, tx_vol_ctl_reg,
+ TX_VOL_CTL_CFG_MUTE_EN_MASK, 0);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ snd_soc_update_bits(codec, tx_vol_ctl_reg,
+ TX_VOL_CTL_CFG_MUTE_EN_MASK,
+ TX_VOL_CTL_CFG_MUTE_EN_ENABLE);
+ snd_soc_update_bits(codec, tx_mux_ctl_reg,
+ TX_MUX_CTL_HPF_BP_SEL_MASK,
+ TX_MUX_CTL_HPF_BP_SEL_BYPASS);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ snd_soc_update_bits(codec, dec_reset_reg, 1 << w->shift,
+ 1 << w->shift);
+ snd_soc_update_bits(codec, dec_reset_reg, 1 << w->shift, 0x0);
+ snd_soc_update_bits(codec, tx_mux_ctl_reg,
+ TX_MUX_CTL_HPF_BP_SEL_MASK,
+ TX_MUX_CTL_HPF_BP_SEL_BYPASS);
+ snd_soc_update_bits(codec, tx_vol_ctl_reg,
+ TX_VOL_CTL_CFG_MUTE_EN_MASK, 0);
+ break;
+ }
+
+ return 0;
+}
+
+static int msm8916_wcd_digital_enable_dmic(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+ unsigned int dmic;
+ int ret;
+ /* get dmic number out of widget name */
+ char *dmic_num = strpbrk(w->name, "12");
+
+ if (dmic_num == NULL) {
+ dev_err(codec->dev, "Invalid DMIC\n");
+ return -EINVAL;
+ }
+ ret = kstrtouint(dmic_num, 10, &dmic);
+ if (ret < 0 || dmic > 2) {
+ dev_err(codec->dev, "Invalid DMIC line on the codec\n");
+ return -EINVAL;
+ }
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ snd_soc_update_bits(codec, LPASS_CDC_CLK_DMIC_B1_CTL,
+ DMIC_B1_CTL_DMIC0_CLK_SEL_MASK,
+ DMIC_B1_CTL_DMIC0_CLK_SEL_DIV3);
+ switch (dmic) {
+ case 1:
+ snd_soc_update_bits(codec, LPASS_CDC_TX1_DMIC_CTL,
+ TXN_DMIC_CTL_CLK_SEL_MASK,
+ TXN_DMIC_CTL_CLK_SEL_DIV3);
+ break;
+ case 2:
+ snd_soc_update_bits(codec, LPASS_CDC_TX2_DMIC_CTL,
+ TXN_DMIC_CTL_CLK_SEL_MASK,
+ TXN_DMIC_CTL_CLK_SEL_DIV3);
+ break;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget msm8916_wcd_digital_dapm_widgets[] = {
+ /*RX stuff */
+ SND_SOC_DAPM_AIF_IN("I2S RX1", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("I2S RX2", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("I2S RX3", NULL, 0, SND_SOC_NOPM, 0, 0),
+
+ SND_SOC_DAPM_OUTPUT("PDM_RX1"),
+ SND_SOC_DAPM_OUTPUT("PDM_RX2"),
+ SND_SOC_DAPM_OUTPUT("PDM_RX3"),
+
+ SND_SOC_DAPM_INPUT("LPASS_PDM_TX"),
+
+ SND_SOC_DAPM_MIXER("RX1 MIX1", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("RX2 MIX1", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("RX3 MIX1", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ /* Interpolator */
+ SND_SOC_DAPM_MIXER_E("RX1 INT", LPASS_CDC_CLK_RX_B1_CTL, 0, 0, NULL,
+ 0, msm8916_wcd_digital_enable_interpolator,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_MIXER_E("RX2 INT", LPASS_CDC_CLK_RX_B1_CTL, 1, 0, NULL,
+ 0, msm8916_wcd_digital_enable_interpolator,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_MIXER_E("RX3 INT", LPASS_CDC_CLK_RX_B1_CTL, 2, 0, NULL,
+ 0, msm8916_wcd_digital_enable_interpolator,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_MUX("RX1 MIX1 INP1", SND_SOC_NOPM, 0, 0,
+ &rx_mix1_inp1_mux),
+ SND_SOC_DAPM_MUX("RX1 MIX1 INP2", SND_SOC_NOPM, 0, 0,
+ &rx_mix1_inp2_mux),
+ SND_SOC_DAPM_MUX("RX1 MIX1 INP3", SND_SOC_NOPM, 0, 0,
+ &rx_mix1_inp3_mux),
+ SND_SOC_DAPM_MUX("RX2 MIX1 INP1", SND_SOC_NOPM, 0, 0,
+ &rx2_mix1_inp1_mux),
+ SND_SOC_DAPM_MUX("RX2 MIX1 INP2", SND_SOC_NOPM, 0, 0,
+ &rx2_mix1_inp2_mux),
+ SND_SOC_DAPM_MUX("RX2 MIX1 INP3", SND_SOC_NOPM, 0, 0,
+ &rx2_mix1_inp3_mux),
+ SND_SOC_DAPM_MUX("RX3 MIX1 INP1", SND_SOC_NOPM, 0, 0,
+ &rx3_mix1_inp1_mux),
+ SND_SOC_DAPM_MUX("RX3 MIX1 INP2", SND_SOC_NOPM, 0, 0,
+ &rx3_mix1_inp2_mux),
+ SND_SOC_DAPM_MUX("RX3 MIX1 INP3", SND_SOC_NOPM, 0, 0,
+ &rx3_mix1_inp3_mux),
+
+ /* TX */
+ SND_SOC_DAPM_MIXER("ADC1", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("ADC2", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER("ADC3", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_MUX_E("DEC1 MUX", LPASS_CDC_CLK_TX_CLK_EN_B1_CTL, 0, 0,
+ &dec1_mux, msm8916_wcd_digital_enable_dec,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_MUX_E("DEC2 MUX", LPASS_CDC_CLK_TX_CLK_EN_B1_CTL, 1, 0,
+ &dec2_mux, msm8916_wcd_digital_enable_dec,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_AIF_OUT("I2S TX1", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("I2S TX2", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("I2S TX3", NULL, 0, SND_SOC_NOPM, 0, 0),
+
+ /* Digital Mic Inputs */
+ SND_SOC_DAPM_ADC_E("DMIC1", NULL, SND_SOC_NOPM, 0, 0,
+ msm8916_wcd_digital_enable_dmic,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_ADC_E("DMIC2", NULL, SND_SOC_NOPM, 0, 0,
+ msm8916_wcd_digital_enable_dmic,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_SUPPLY("DMIC_CLK", LPASS_CDC_CLK_DMIC_B1_CTL, 0, 0,
+ NULL, 0),
+ SND_SOC_DAPM_SUPPLY("RX_I2S_CLK", LPASS_CDC_CLK_RX_I2S_CTL,
+ 4, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("TX_I2S_CLK", LPASS_CDC_CLK_TX_I2S_CTL, 4, 0,
+ NULL, 0),
+
+ SND_SOC_DAPM_SUPPLY("MCLK", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("PDM_CLK", LPASS_CDC_CLK_PDM_CTL, 0, 0, NULL, 0),
+ /* Connectivity Clock */
+ SND_SOC_DAPM_SUPPLY_S("CDC_CONN", -2, LPASS_CDC_CLK_OTHR_CTL, 2, 0,
+ NULL, 0),
+
+};
+
+static int msm8916_wcd_digital_parse_dt(struct platform_device *pdev,
+ struct msm8916_wcd_digital_priv *priv)
+{
+ struct device *dev = &pdev->dev;
+
+ priv->ahbclk = devm_clk_get(dev, "ahbix-clk");
+ if (IS_ERR(priv->ahbclk)) {
+ dev_err(dev, "failed to get ahbix clk\n");
+ return PTR_ERR(priv->ahbclk);
+ }
+
+ priv->mclk = devm_clk_get(dev, "mclk");
+ if (IS_ERR(priv->mclk)) {
+ dev_err(dev, "failed to get mclk\n");
+ return PTR_ERR(priv->mclk);
+ }
+
+ return 0;
+}
+
+static int msm8916_wcd_digital_codec_probe(struct snd_soc_codec *codec)
+{
+ struct msm8916_wcd_digital_priv *priv = dev_get_drvdata(codec->dev);
+
+ snd_soc_codec_set_drvdata(codec, priv);
+
+ return 0;
+}
+
+static int msm8916_wcd_digital_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ u8 tx_fs_rate;
+ u8 rx_fs_rate;
+
+ switch (params_rate(params)) {
+ case 8000:
+ tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_8_KHZ;
+ rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_8_KHZ;
+ break;
+ case 16000:
+ tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_16_KHZ;
+ rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_16_KHZ;
+ break;
+ case 32000:
+ tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_32_KHZ;
+ rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_32_KHZ;
+ break;
+ case 48000:
+ tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_48_KHZ;
+ rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_48_KHZ;
+ break;
+ default:
+ dev_err(dai->codec->dev, "Invalid sampling rate %d\n",
+ params_rate(params));
+ return -EINVAL;
+ }
+
+ switch (substream->stream) {
+ case SNDRV_PCM_STREAM_CAPTURE:
+ snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_TX_I2S_CTL,
+ TX_I2S_CTL_TX_I2S_FS_RATE_MASK, tx_fs_rate);
+ break;
+ case SNDRV_PCM_STREAM_PLAYBACK:
+ snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_RX_I2S_CTL,
+ RX_I2S_CTL_RX_I2S_FS_RATE_MASK, rx_fs_rate);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_TX_I2S_CTL,
+ TX_I2S_CTL_TX_I2S_MODE_MASK,
+ TX_I2S_CTL_TX_I2S_MODE_16);
+ snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_RX_I2S_CTL,
+ RX_I2S_CTL_RX_I2S_MODE_MASK,
+ RX_I2S_CTL_RX_I2S_MODE_16);
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_TX_I2S_CTL,
+ TX_I2S_CTL_TX_I2S_MODE_MASK,
+ TX_I2S_CTL_TX_I2S_MODE_32);
+ snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_RX_I2S_CTL,
+ RX_I2S_CTL_RX_I2S_MODE_MASK,
+ RX_I2S_CTL_RX_I2S_MODE_32);
+ break;
+ default:
+ dev_err(dai->dev, "%s: wrong format selected\n", __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_route msm8916_wcd_digital_audio_map[] = {
+
+ {"I2S RX1", NULL, "AIF1 Playback"},
+ {"I2S RX2", NULL, "AIF1 Playback"},
+ {"I2S RX3", NULL, "AIF1 Playback"},
+
+ {"AIF1 Capture", NULL, "I2S TX1"},
+ {"AIF1 Capture", NULL, "I2S TX2"},
+ {"AIF1 Capture", NULL, "I2S TX3"},
+
+ /* Decimator Inputs */
+ {"DEC1 MUX", "DMIC1", "DMIC1"},
+ {"DEC1 MUX", "DMIC2", "DMIC2"},
+ {"DEC1 MUX", "ADC1", "ADC1"},
+ {"DEC1 MUX", "ADC2", "ADC2"},
+ {"DEC1 MUX", "ADC3", "ADC3"},
+ {"DEC1 MUX", NULL, "CDC_CONN"},
+
+ {"DEC2 MUX", "DMIC1", "DMIC1"},
+ {"DEC2 MUX", "DMIC2", "DMIC2"},
+ {"DEC2 MUX", "ADC1", "ADC1"},
+ {"DEC2 MUX", "ADC2", "ADC2"},
+ {"DEC2 MUX", "ADC3", "ADC3"},
+ {"DEC2 MUX", NULL, "CDC_CONN"},
+
+ {"DMIC1", NULL, "DMIC_CLK"},
+ {"DMIC2", NULL, "DMIC_CLK"},
+
+ {"I2S TX1", NULL, "DEC1 MUX"},
+ {"I2S TX2", NULL, "DEC2 MUX"},
+
+ {"I2S TX1", NULL, "TX_I2S_CLK"},
+ {"I2S TX2", NULL, "TX_I2S_CLK"},
+
+ {"TX_I2S_CLK", NULL, "MCLK"},
+ {"TX_I2S_CLK", NULL, "PDM_CLK"},
+
+ {"ADC1", NULL, "LPASS_PDM_TX"},
+ {"ADC2", NULL, "LPASS_PDM_TX"},
+ {"ADC3", NULL, "LPASS_PDM_TX"},
+
+ {"I2S RX1", NULL, "RX_I2S_CLK"},
+ {"I2S RX2", NULL, "RX_I2S_CLK"},
+ {"I2S RX3", NULL, "RX_I2S_CLK"},
+
+ {"RX_I2S_CLK", NULL, "PDM_CLK"},
+ {"RX_I2S_CLK", NULL, "MCLK"},
+ {"RX_I2S_CLK", NULL, "CDC_CONN"},
+
+ /* RX1 PATH.. */
+ {"PDM_RX1", NULL, "RX1 INT"},
+ {"RX1 INT", NULL, "RX1 MIX1"},
+
+ {"RX1 MIX1", NULL, "RX1 MIX1 INP1"},
+ {"RX1 MIX1", NULL, "RX1 MIX1 INP2"},
+ {"RX1 MIX1", NULL, "RX1 MIX1 INP3"},
+
+ {"RX1 MIX1 INP1", "RX1", "I2S RX1"},
+ {"RX1 MIX1 INP1", "RX2", "I2S RX2"},
+ {"RX1 MIX1 INP1", "RX3", "I2S RX3"},
+
+ {"RX1 MIX1 INP2", "RX1", "I2S RX1"},
+ {"RX1 MIX1 INP2", "RX2", "I2S RX2"},
+ {"RX1 MIX1 INP2", "RX3", "I2S RX3"},
+
+ {"RX1 MIX1 INP3", "RX1", "I2S RX1"},
+ {"RX1 MIX1 INP3", "RX2", "I2S RX2"},
+ {"RX1 MIX1 INP3", "RX3", "I2S RX3"},
+
+ /* RX2 PATH */
+ {"PDM_RX2", NULL, "RX2 INT"},
+ {"RX2 INT", NULL, "RX2 MIX1"},
+
+ {"RX2 MIX1", NULL, "RX2 MIX1 INP1"},
+ {"RX2 MIX1", NULL, "RX2 MIX1 INP2"},
+ {"RX2 MIX1", NULL, "RX2 MIX1 INP3"},
+
+ {"RX2 MIX1 INP1", "RX1", "I2S RX1"},
+ {"RX2 MIX1 INP1", "RX2", "I2S RX2"},
+ {"RX2 MIX1 INP1", "RX3", "I2S RX3"},
+
+ {"RX2 MIX1 INP2", "RX1", "I2S RX1"},
+ {"RX2 MIX1 INP2", "RX2", "I2S RX2"},
+ {"RX2 MIX1 INP2", "RX3", "I2S RX3"},
+
+ {"RX2 MIX1 INP3", "RX1", "I2S RX1"},
+ {"RX2 MIX1 INP3", "RX2", "I2S RX2"},
+ {"RX2 MIX1 INP3", "RX3", "I2S RX3"},
+
+ /* RX3 PATH */
+ {"PDM_RX3", NULL, "RX3 INT"},
+ {"RX3 INT", NULL, "RX3 MIX1"},
+
+ {"RX3 MIX1", NULL, "RX3 MIX1 INP1"},
+ {"RX3 MIX1", NULL, "RX3 MIX1 INP2"},
+ {"RX3 MIX1", NULL, "RX3 MIX1 INP3"},
+
+ {"RX3 MIX1 INP1", "RX1", "I2S RX1"},
+ {"RX3 MIX1 INP1", "RX2", "I2S RX2"},
+ {"RX3 MIX1 INP1", "RX3", "I2S RX3"},
+
+ {"RX3 MIX1 INP2", "RX1", "I2S RX1"},
+ {"RX3 MIX1 INP2", "RX2", "I2S RX2"},
+ {"RX3 MIX1 INP2", "RX3", "I2S RX3"},
+
+ {"RX3 MIX1 INP3", "RX1", "I2S RX1"},
+ {"RX3 MIX1 INP3", "RX2", "I2S RX2"},
+ {"RX3 MIX1 INP3", "RX3", "I2S RX3"},
+
+};
+
+static int msm8916_wcd_digital_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct msm8916_wcd_digital_priv *msm8916_wcd;
+ unsigned long mclk_rate;
+
+ msm8916_wcd = snd_soc_codec_get_drvdata(codec);
+ snd_soc_update_bits(codec, LPASS_CDC_CLK_MCLK_CTL,
+ MCLK_CTL_MCLK_EN_MASK,
+ MCLK_CTL_MCLK_EN_ENABLE);
+ snd_soc_update_bits(codec, LPASS_CDC_CLK_PDM_CTL,
+ LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_MASK,
+ LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_FB);
+
+ mclk_rate = clk_get_rate(msm8916_wcd->mclk);
+ switch (mclk_rate) {
+ case 12288000:
+ snd_soc_update_bits(codec, LPASS_CDC_TOP_CTL,
+ TOP_CTL_DIG_MCLK_FREQ_MASK,
+ TOP_CTL_DIG_MCLK_FREQ_F_12_288MHZ);
+ break;
+ case 9600000:
+ snd_soc_update_bits(codec, LPASS_CDC_TOP_CTL,
+ TOP_CTL_DIG_MCLK_FREQ_MASK,
+ TOP_CTL_DIG_MCLK_FREQ_F_9_6MHZ);
+ break;
+ default:
+ dev_err(codec->dev, "Invalid mclk rate %ld\n", mclk_rate);
+ break;
+ }
+ return 0;
+}
+
+static void msm8916_wcd_digital_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_PDM_CTL,
+ LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_MASK, 0);
+}
+
+static struct snd_soc_dai_ops msm8916_wcd_digital_dai_ops = {
+ .startup = msm8916_wcd_digital_startup,
+ .shutdown = msm8916_wcd_digital_shutdown,
+ .hw_params = msm8916_wcd_digital_hw_params,
+};
+
+static struct snd_soc_dai_driver msm8916_wcd_digital_dai[] = {
+ [0] = {
+ .name = "msm8916_wcd_digital_i2s_rx1",
+ .id = 0,
+ .playback = {
+ .stream_name = "AIF1 Playback",
+ .rates = MSM8916_WCD_DIGITAL_RATES,
+ .formats = MSM8916_WCD_DIGITAL_FORMATS,
+ .channels_min = 1,
+ .channels_max = 3,
+ },
+ .ops = &msm8916_wcd_digital_dai_ops,
+ },
+ [1] = {
+ .name = "msm8916_wcd_digital_i2s_tx1",
+ .id = 1,
+ .capture = {
+ .stream_name = "AIF1 Capture",
+ .rates = MSM8916_WCD_DIGITAL_RATES,
+ .formats = MSM8916_WCD_DIGITAL_FORMATS,
+ .channels_min = 1,
+ .channels_max = 4,
+ },
+ .ops = &msm8916_wcd_digital_dai_ops,
+ },
+};
+
+static struct snd_soc_codec_driver msm8916_wcd_digital = {
+ .probe = msm8916_wcd_digital_codec_probe,
+ .controls = msm8916_wcd_digital_snd_controls,
+ .num_controls = ARRAY_SIZE(msm8916_wcd_digital_snd_controls),
+ .dapm_widgets = msm8916_wcd_digital_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(msm8916_wcd_digital_dapm_widgets),
+ .dapm_routes = msm8916_wcd_digital_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(msm8916_wcd_digital_audio_map),
+};
+
+static const struct regmap_config msm8916_codec_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = LPASS_CDC_TX2_DMIC_CTL,
+ .cache_type = REGCACHE_FLAT,
+};
+
+static int msm8916_wcd_digital_probe(struct platform_device *pdev)
+{
+ struct msm8916_wcd_digital_priv *priv;
+ struct device *dev = &pdev->dev;
+ void __iomem *base;
+ struct resource *mem_res;
+ struct regmap *digital_map;
+ int ret;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&pdev->dev, mem_res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ digital_map =
+ devm_regmap_init_mmio(&pdev->dev, base,
+ &msm8916_codec_regmap_config);
+ if (IS_ERR(digital_map))
+ return PTR_ERR(digital_map);
+
+ ret = msm8916_wcd_digital_parse_dt(pdev, priv);
+ if (ret < 0)
+ return ret;
+
+ ret = clk_prepare_enable(priv->ahbclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable ahbclk %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(priv->mclk);
+ if (ret < 0) {
+ dev_err(dev, "failed to enable mclk %d\n", ret);
+ return ret;
+ }
+
+ dev_set_drvdata(dev, priv);
+
+ return snd_soc_register_codec(dev, &msm8916_wcd_digital,
+ msm8916_wcd_digital_dai,
+ ARRAY_SIZE(msm8916_wcd_digital_dai));
+}
+
+static int msm8916_wcd_digital_remove(struct platform_device *pdev)
+{
+ struct msm8916_wcd_digital_priv *priv = dev_get_drvdata(&pdev->dev);
+
+ snd_soc_unregister_codec(&pdev->dev);
+ clk_disable_unprepare(priv->mclk);
+ clk_disable_unprepare(priv->ahbclk);
+
+ return 0;
+}
+
+static const struct of_device_id msm8916_wcd_digital_match_table[] = {
+ { .compatible = "qcom,msm8916-wcd-digital-codec" },
+ { }
+};
+
+MODULE_DEVICE_TABLE(of, msm8916_wcd_digital_match_table);
+
+static struct platform_driver msm8916_wcd_digital_driver = {
+ .driver = {
+ .name = "msm8916-wcd-digital-codec",
+ .of_match_table = msm8916_wcd_digital_match_table,
+ },
+ .probe = msm8916_wcd_digital_probe,
+ .remove = msm8916_wcd_digital_remove,
+};
+
+module_platform_driver(msm8916_wcd_digital_driver);
+
+MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>");
+MODULE_DESCRIPTION("MSM8916 WCD Digital Codec driver");
+MODULE_LICENSE("GPL v2");
--
2.7.4

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