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linux-stable/sound/soc/codecs/msm8916-wcd-digital.c
Srinivas Kandagatla ba9b8c42cf ASoC: codecs: msm8916-wcd-digital: rename parse_dt to get_clks 
This patch renames msm8916_wcd_digital_parse_dt() to
msm8916_wcd_digital_get_clks() as the function is not directly dealing
with dt parsing.

No functional changes done.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-04 10:19:01 -06:00

923 lines
30 KiB
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/* 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_get_clks(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,
.component_driver = {
.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_get_clks(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@linaro.org>");
MODULE_DESCRIPTION("MSM8916 WCD Digital Codec driver");
MODULE_LICENSE("GPL v2");
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