[PATCH 3/4] ASoC: mediatek: cleanup audio driver for MT2701

From: Ryder Lee
Date: Mon Dec 25 2017 - 03:29:06 EST

Cleanup unused code such as 'i2s_num' guard, headers, indentation
and some defines.

Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
---
sound/soc/mediatek/mt2701/mt2701-afe-clock-ctrl.c | 14 +---
sound/soc/mediatek/mt2701/mt2701-afe-common.h | 20 +----
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 96 ++++-------------------
sound/soc/mediatek/mt2701/mt2701-reg.h | 42 +---------
4 files changed, 26 insertions(+), 146 deletions(-)

diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-clock-ctrl.c b/sound/soc/mediatek/mt2701/mt2701-afe-clock-ctrl.c
index 0b7e21a..4246180 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-clock-ctrl.c
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-clock-ctrl.c
@@ -14,10 +14,6 @@
* GNU General Public License for more details.
*/

-#include <sound/soc.h>
-#include <linux/regmap.h>
-#include <linux/pm_runtime.h>
-
#include "mt2701-afe-common.h"
#include "mt2701-afe-clock-ctrl.h"

@@ -248,8 +244,8 @@ int mt2701_afe_enable_clock(struct mtk_base_afe *afe)
}

regmap_update_bits(afe->regmap, ASYS_TOP_CON,
- AUDIO_TOP_CON0_A1SYS_A2SYS_ON,
- AUDIO_TOP_CON0_A1SYS_A2SYS_ON);
+ ASYS_TOP_CON_ASYS_TIMING_ON,
+ ASYS_TOP_CON_ASYS_TIMING_ON);
regmap_update_bits(afe->regmap, AFE_DAC_CON0,
AFE_DAC_CON0_AFE_ON,
AFE_DAC_CON0_AFE_ON);
@@ -275,7 +271,7 @@ int mt2701_afe_disable_clock(struct mtk_base_afe *afe)
struct mt2701_afe_private *afe_priv = afe->platform_priv;

regmap_update_bits(afe->regmap, ASYS_TOP_CON,
- AUDIO_TOP_CON0_A1SYS_A2SYS_ON, 0);
+ ASYS_TOP_CON_ASYS_TIMING_ON, 0);
regmap_update_bits(afe->regmap, AFE_DAC_CON0,
AFE_DAC_CON0_AFE_ON, 0);

@@ -311,7 +307,3 @@ void mt2701_mclk_configuration(struct mtk_base_afe *afe, int id, int domain,
if (ret)
dev_err(afe->dev, "failed to set mclk divider %d\n", ret);
}
-
-MODULE_DESCRIPTION("MT2701 afe clock control");
-MODULE_AUTHOR("Garlic Tseng <garlic.tseng@xxxxxxxxxxxx>");
-MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-common.h b/sound/soc/mediatek/mt2701/mt2701-afe-common.h
index 5a76c61..c3eb73c 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-common.h
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-common.h
@@ -16,6 +16,7 @@

#ifndef _MT_2701_AFE_COMMON_H_
#define _MT_2701_AFE_COMMON_H_
+
#include <sound/soc.h>
#include <linux/clk.h>
#include <linux/regmap.h>
@@ -25,16 +26,7 @@
#define MT2701_STREAM_DIR_NUM (SNDRV_PCM_STREAM_LAST + 1)
#define MT2701_PLL_DOMAIN_0_RATE 98304000
#define MT2701_PLL_DOMAIN_1_RATE 90316800
-#define MT2701_AUD_AUD_MUX1_DIV_RATE (MT2701_PLL_DOMAIN_0_RATE / 2)
-#define MT2701_AUD_AUD_MUX2_DIV_RATE (MT2701_PLL_DOMAIN_1_RATE / 2)
-
-enum {
- MT2701_I2S_1,
- MT2701_I2S_2,
- MT2701_I2S_3,
- MT2701_I2S_4,
- MT2701_I2S_NUM,
-};
+#define MT2701_I2S_NUM 4

enum {
MT2701_MEMIF_DL1,
@@ -62,8 +54,7 @@ enum {
};

enum {
- MT2701_IRQ_ASYS_START,
- MT2701_IRQ_ASYS_IRQ1 = MT2701_IRQ_ASYS_START,
+ MT2701_IRQ_ASYS_IRQ1,
MT2701_IRQ_ASYS_IRQ2,
MT2701_IRQ_ASYS_IRQ3,
MT2701_IRQ_ASYS_END,
@@ -104,9 +95,6 @@ enum audio_base_clock {
AFE_MEMIF_PBUF_SIZE,
};

-struct snd_pcm_substream;
-struct mtk_base_irq_data;
-
struct mt2701_i2s_data {
int i2s_ctrl_reg;
int i2s_asrc_fs_shift;
@@ -124,7 +112,7 @@ struct mt2701_i2s_path {
int mclk_rate;
int on[I2S_DIR_NUM];
int occupied[I2S_DIR_NUM];
- const struct mt2701_i2s_data *i2s_data[2];
+ const struct mt2701_i2s_data *i2s_data[I2S_DIR_NUM];
struct clk *hop_ck[I2S_DIR_NUM];
struct clk *sel_ck;
struct clk *div_ck;
diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
index 9396fb3..dd961b6 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
@@ -20,16 +20,12 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/pm_runtime.h>
-#include <sound/soc.h>

#include "mt2701-afe-common.h"
-
#include "mt2701-afe-clock-ctrl.h"
#include "../common/mtk-afe-platform-driver.h"
#include "../common/mtk-afe-fe-dai.h"

-#define AFE_IRQ_STATUS_BITS 0xff
-
static const struct snd_pcm_hardware mt2701_afe_hardware = {
.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED
| SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID,
@@ -107,21 +103,16 @@ static int mt2701_afe_i2s_startup(struct snd_pcm_substream *substream,

static int mt2701_afe_i2s_path_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai,
+ int i2s_num,
int dir_invert)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct mtk_base_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
struct mt2701_afe_private *afe_priv = afe->platform_priv;
- int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
- struct mt2701_i2s_path *i2s_path;
+ struct mt2701_i2s_path *i2s_path = &afe_priv->i2s_path[i2s_num];
const struct mt2701_i2s_data *i2s_data;
int stream_dir = substream->stream;

- if (i2s_num < 0)
- return i2s_num;
-
- i2s_path = &afe_priv->i2s_path[i2s_num];
-
if (dir_invert) {
if (stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
stream_dir = SNDRV_PCM_STREAM_CAPTURE;
@@ -167,11 +158,11 @@ static void mt2701_afe_i2s_shutdown(struct snd_pcm_substream *substream,
else
goto I2S_UNSTART;

- mt2701_afe_i2s_path_shutdown(substream, dai, 0);
+ mt2701_afe_i2s_path_shutdown(substream, dai, i2s_num, 0);

/* need to disable i2s-out path when disable i2s-in */
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- mt2701_afe_i2s_path_shutdown(substream, dai, 1);
+ mt2701_afe_i2s_path_shutdown(substream, dai, i2s_num, 1);

I2S_UNSTART:
/* disable mclk */
@@ -180,24 +171,19 @@ static void mt2701_afe_i2s_shutdown(struct snd_pcm_substream *substream,

static int mt2701_i2s_path_prepare_enable(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai,
+ int i2s_num,
int dir_invert)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct mtk_base_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
struct mt2701_afe_private *afe_priv = afe->platform_priv;
- int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id);
- struct mt2701_i2s_path *i2s_path;
+ struct mt2701_i2s_path *i2s_path = &afe_priv->i2s_path[i2s_num];
const struct mt2701_i2s_data *i2s_data;
struct snd_pcm_runtime * const runtime = substream->runtime;
int reg, fs, w_len = 1; /* now we support bck 64bits only */
int stream_dir = substream->stream;
unsigned int mask = 0, val = 0;

- if (i2s_num < 0)
- return i2s_num;
-
- i2s_path = &afe_priv->i2s_path[i2s_num];
-
if (dir_invert) {
if (stream_dir == SNDRV_PCM_STREAM_PLAYBACK)
stream_dir = SNDRV_PCM_STREAM_CAPTURE;
@@ -288,13 +274,13 @@ static int mt2701_afe_i2s_prepare(struct snd_pcm_substream *substream,
mt2701_mclk_configuration(afe, i2s_num, clk_domain, mclk_rate);

if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- mt2701_i2s_path_prepare_enable(substream, dai, 0);
+ mt2701_i2s_path_prepare_enable(substream, dai, i2s_num, 0);
} else {
/* need to enable i2s-out path when enable i2s-in */
/* prepare for another direction "out" */
- mt2701_i2s_path_prepare_enable(substream, dai, 1);
+ mt2701_i2s_path_prepare_enable(substream, dai, i2s_num, 1);
/* prepare for "in" */
- mt2701_i2s_path_prepare_enable(substream, dai, 0);
+ mt2701_i2s_path_prepare_enable(substream, dai, i2s_num, 0);
}

return 0;
@@ -562,7 +548,6 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
.hw_free = mtk_afe_fe_hw_free,
.prepare = mtk_afe_fe_prepare,
.trigger = mtk_afe_fe_trigger,
-
};

static const struct snd_soc_dai_ops mt2701_dlm_memif_dai_ops = {
@@ -903,31 +888,6 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
PWR2_TOP_CON, 19, 1, 0),
};

-static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc0[] = {
- SOC_DAPM_SINGLE_AUTODISABLE("Asrc0 out Switch", AUDIO_TOP_CON4, 14, 1,
- 1),
-};
-
-static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc1[] = {
- SOC_DAPM_SINGLE_AUTODISABLE("Asrc1 out Switch", AUDIO_TOP_CON4, 15, 1,
- 1),
-};
-
-static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc2[] = {
- SOC_DAPM_SINGLE_AUTODISABLE("Asrc2 out Switch", PWR2_TOP_CON, 6, 1,
- 1),
-};
-
-static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc3[] = {
- SOC_DAPM_SINGLE_AUTODISABLE("Asrc3 out Switch", PWR2_TOP_CON, 7, 1,
- 1),
-};
-
-static const struct snd_kcontrol_new mt2701_afe_multi_ch_out_asrc4[] = {
- SOC_DAPM_SINGLE_AUTODISABLE("Asrc4 out Switch", PWR2_TOP_CON, 8, 1,
- 1),
-};
-
static const struct snd_soc_dapm_widget mt2701_afe_pcm_widgets[] = {
/* inter-connections */
SND_SOC_DAPM_MIXER("I00", SND_SOC_NOPM, 0, 0, NULL, 0),
@@ -987,19 +947,6 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
SND_SOC_DAPM_MIXER("I18I19", SND_SOC_NOPM, 0, 0,
mt2701_afe_multi_ch_out_i2s3,
ARRAY_SIZE(mt2701_afe_multi_ch_out_i2s3)),
-
- SND_SOC_DAPM_MIXER("ASRC_O0", SND_SOC_NOPM, 0, 0,
- mt2701_afe_multi_ch_out_asrc0,
- ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc0)),
- SND_SOC_DAPM_MIXER("ASRC_O1", SND_SOC_NOPM, 0, 0,
- mt2701_afe_multi_ch_out_asrc1,
- ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc1)),
- SND_SOC_DAPM_MIXER("ASRC_O2", SND_SOC_NOPM, 0, 0,
- mt2701_afe_multi_ch_out_asrc2,
- ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc2)),
- SND_SOC_DAPM_MIXER("ASRC_O3", SND_SOC_NOPM, 0, 0,
- mt2701_afe_multi_ch_out_asrc3,
- ARRAY_SIZE(mt2701_afe_multi_ch_out_asrc3)),
};

static const struct snd_soc_dapm_route mt2701_afe_pcm_routes[] = {
@@ -1009,7 +956,6 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)

{"I2S0 Playback", NULL, "O15"},
{"I2S0 Playback", NULL, "O16"},
-
{"I2S1 Playback", NULL, "O17"},
{"I2S1 Playback", NULL, "O18"},
{"I2S2 Playback", NULL, "O19"},
@@ -1026,7 +972,6 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)

{"I00", NULL, "I2S0 Capture"},
{"I01", NULL, "I2S0 Capture"},
-
{"I02", NULL, "I2S1 Capture"},
{"I03", NULL, "I2S1 Capture"},
/* I02,03 link to UL2, also need to open I2S0 */
@@ -1034,15 +979,10 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)

{"I26", NULL, "BT Capture"},

- {"ASRC_O0", "Asrc0 out Switch", "DLM"},
- {"ASRC_O1", "Asrc1 out Switch", "DLM"},
- {"ASRC_O2", "Asrc2 out Switch", "DLM"},
- {"ASRC_O3", "Asrc3 out Switch", "DLM"},
-
- {"I12I13", "Multich I2S0 Out Switch", "ASRC_O0"},
- {"I14I15", "Multich I2S1 Out Switch", "ASRC_O1"},
- {"I16I17", "Multich I2S2 Out Switch", "ASRC_O2"},
- {"I18I19", "Multich I2S3 Out Switch", "ASRC_O3"},
+ {"I12I13", "Multich I2S0 Out Switch", "DLM"},
+ {"I14I15", "Multich I2S1 Out Switch", "DLM"},
+ {"I16I17", "Multich I2S2 Out Switch", "DLM"},
+ {"I18I19", "Multich I2S3 Out Switch", "DLM"},

{ "I12", NULL, "I12I13" },
{ "I13", NULL, "I12I13" },
@@ -1067,7 +1007,6 @@ static int mt2701_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
{ "O21", "I18 Switch", "I18" },
{ "O22", "I19 Switch", "I19" },
{ "O31", "I35 Switch", "I35" },
-
};

static const struct snd_soc_component_driver mt2701_afe_pcm_dai_component = {
@@ -1484,12 +1423,13 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL);
if (!afe)
return -ENOMEM;
+
afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv),
GFP_KERNEL);
if (!afe->platform_priv)
return -ENOMEM;
- afe_priv = afe->platform_priv;

+ afe_priv = afe->platform_priv;
afe->dev = &pdev->dev;
dev = afe->dev;

@@ -1509,12 +1449,11 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

afe->base_addr = devm_ioremap_resource(&pdev->dev, res);
-
if (IS_ERR(afe->base_addr))
return PTR_ERR(afe->base_addr);

afe->regmap = devm_regmap_init_mmio(&pdev->dev, afe->base_addr,
- &mt2701_afe_regmap_config);
+ &mt2701_afe_regmap_config);
if (IS_ERR(afe->regmap))
return PTR_ERR(afe->regmap);

@@ -1524,7 +1463,6 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
afe->memif_size = MT2701_MEMIF_NUM;
afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif),
GFP_KERNEL);
-
if (!afe->memif)
return -ENOMEM;

@@ -1537,7 +1475,6 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
afe->irqs_size = MT2701_IRQ_ASYS_END;
afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs),
GFP_KERNEL);
-
if (!afe->irqs)
return -ENOMEM;

@@ -1646,4 +1583,3 @@ static int mt2701_afe_pcm_dev_remove(struct platform_device *pdev)
MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver for 2701");
MODULE_AUTHOR("Garlic Tseng <garlic.tseng@xxxxxxxxxxxx>");
MODULE_LICENSE("GPL v2");
-
diff --git a/sound/soc/mediatek/mt2701/mt2701-reg.h b/sound/soc/mediatek/mt2701/mt2701-reg.h
index bb62b1c..e403183 100644
--- a/sound/soc/mediatek/mt2701/mt2701-reg.h
+++ b/sound/soc/mediatek/mt2701/mt2701-reg.h
@@ -17,17 +17,6 @@
#ifndef _MT2701_REG_H_
#define _MT2701_REG_H_

-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/pm_runtime.h>
-#include <sound/soc.h>
-#include "mt2701-afe-common.h"
-
-/*****************************************************************************
- * R E G I S T E R D E F I N I T I O N
- *****************************************************************************/
#define AUDIO_TOP_CON0 0x0000
#define AUDIO_TOP_CON4 0x0010
#define AUDIO_TOP_CON5 0x0014
@@ -109,18 +98,6 @@
#define AFE_DAI_BASE 0x1370
#define AFE_DAI_CUR 0x137c

-/* AUDIO_TOP_CON0 (0x0000) */
-#define AUDIO_TOP_CON0_A1SYS_A2SYS_ON (0x3 << 0)
-#define AUDIO_TOP_CON0_PDN_AFE (0x1 << 2)
-#define AUDIO_TOP_CON0_PDN_APLL_CK (0x1 << 23)
-
-/* AUDIO_TOP_CON4 (0x0010) */
-#define AUDIO_TOP_CON4_I2SO1_PWN (0x1 << 6)
-#define AUDIO_TOP_CON4_PDN_A1SYS (0x1 << 21)
-#define AUDIO_TOP_CON4_PDN_A2SYS (0x1 << 22)
-#define AUDIO_TOP_CON4_PDN_AFE_CONN (0x1 << 23)
-#define AUDIO_TOP_CON4_PDN_MRGIF (0x1 << 25)
-
/* AFE_DAIBT_CON0 (0x001c) */
#define AFE_DAIBT_CON0_DAIBT_EN (0x1 << 0)
#define AFE_DAIBT_CON0_BT_FUNC_EN (0x1 << 1)
@@ -137,22 +114,8 @@
#define AFE_MRGIF_CON_I2S_MODE_MASK (0xf << 20)
#define AFE_MRGIF_CON_I2S_MODE_32K (0x4 << 20)

-/* ASYS_I2SO1_CON (0x061c) */
-#define ASYS_I2SO1_CON_FS (0x1f << 8)
-#define ASYS_I2SO1_CON_FS_SET(x) ((x) << 8)
-#define ASYS_I2SO1_CON_MULTI_CH (0x1 << 16)
-#define ASYS_I2SO1_CON_SIDEGEN (0x1 << 30)
-#define ASYS_I2SO1_CON_I2S_EN (0x1 << 0)
-/* 0:EIAJ 1:I2S */
-#define ASYS_I2SO1_CON_I2S_MODE (0x1 << 3)
-#define ASYS_I2SO1_CON_WIDE_MODE (0x1 << 1)
-#define ASYS_I2SO1_CON_WIDE_MODE_SET(x) ((x) << 1)
-
-/* PWR2_TOP_CON (0x0634) */
-#define PWR2_TOP_CON_INIT_VAL (0xffe1ffff)
-
-/* ASYS_IRQ_CLR (0x07c0) */
-#define ASYS_IRQ_CLR_ALL (0xffffffff)
+/* ASYS_TOP_CON (0x0600) */
+#define ASYS_TOP_CON_ASYS_TIMING_ON (0x3 << 0)

/* PWR2_ASM_CON1 (0x1070) */
#define PWR2_ASM_CON1_INIT_VAL (0x492492)
@@ -183,4 +146,5 @@
#define ASYS_I2S_IN_PHASE_FIX (0x1 << 31)

#define AFE_END_ADDR 0x15e0
+
#endif
--
1.9.1