openwrtv4/target/linux/mediatek/patches-4.14/0182-ASoC-mediatek-cleanup-audio-driver-for-MT2701.patch

From 4087c924ec899881951b2170a7bb8888747ec532 Mon Sep 17 00:00:00 2001
From: Ryder Lee <ryder.lee@mediatek.com>
Date: Tue, 2 Jan 2018 19:47:20 +0800
Subject: [PATCH 182/224] ASoC: mediatek: cleanup audio driver for MT2701

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

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 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        | 94 ++++-------------------
 sound/soc/mediatek/mt2701/mt2701-reg.h            | 41 +---------
 4 files changed, 24 insertions(+), 145 deletions(-)

--- 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"
 
@@ -223,8 +219,8 @@ int mt2701_afe_enable_clock(struct mtk_b
 	}
 
 	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);
@@ -239,7 +235,7 @@ int mt2701_afe_enable_clock(struct mtk_b
 int mt2701_afe_disable_clock(struct mtk_base_afe *afe)
 {
 	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);
 
@@ -272,7 +268,3 @@ void mt2701_mclk_configuration(struct mt
 	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@mediatek.com>");
-MODULE_LICENSE("GPL v2");
--- 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,
@@ -100,9 +91,6 @@ static const unsigned int mt2701_afe_bac
 	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;
@@ -120,7 +108,7 @@ 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;
--- 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
 
 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(stru
 	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 @@ I2S_UNSTART:
 
 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
 	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 const struct snd_soc_dai_ops mt27
 	.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 const struct snd_kcontrol_new mt2
 				    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 const struct snd_soc_dapm_widget
 	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 const struct snd_soc_dapm_route m
 
 	{"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 const struct snd_soc_dapm_route m
 
 	{"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 const struct snd_soc_dapm_route m
 
 	{"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 const struct snd_soc_dapm_route m
 	{ "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(stru
 	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;
 
@@ -1524,7 +1464,6 @@ static int mt2701_afe_pcm_dev_probe(stru
 	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 +1476,6 @@ static int mt2701_afe_pcm_dev_probe(stru
 	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;
 
@@ -1555,7 +1493,6 @@ static int mt2701_afe_pcm_dev_probe(stru
 	afe->mtk_afe_hardware = &mt2701_afe_hardware;
 	afe->memif_fs = mt2701_memif_fs;
 	afe->irq_fs = mt2701_irq_fs;
-
 	afe->reg_back_up_list = mt2701_afe_backup_list;
 	afe->reg_back_up_list_num = ARRAY_SIZE(mt2701_afe_backup_list);
 	afe->runtime_resume = mt2701_afe_runtime_resume;
@@ -1646,4 +1583,3 @@ module_platform_driver(mt2701_afe_pcm_dr
 MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver for 2701");
 MODULE_AUTHOR("Garlic Tseng <garlic.tseng@mediatek.com>");
 MODULE_LICENSE("GPL v2");
-
--- 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)