asoc: tegra: integration of slave mode support.

Add master/slave configurability support interface for
all codecs. Currently, complete slave mode functionality
is added only for MAX98088 and WM8903 codec only. By
default, board parameters will set i2s master mode for
all codecs.

asoc: tegra: utils: add support for i2s master/slave mode.
Support for i2s in master or slave mode is made generic by
obtaining information from platform data.
Signed-off-by: Ankit Gupta <ankitgupta@nvidia.com>
Change-Id: Ided0fcefb6cdb124b78aab423bfd8c7dccd4bf6e
Reviewed-on: http://git-master/r/111553
(cherry picked from commit bb1ad7222f9c75424a45976d16de418bc927dc04)

asoc: tegra: wm8903 machine: add support for i2s in slave mode.
Add support for i2s as slave for playback and capture use cases.
Signed-off-by: Ankit Gupta <ankitgupta@nvidia.com>
Change-Id: I1f6b73a0a1b690ecd311b0ff4107aadbb1f037d8
Reviewed-on: http://git-master/r/111472
(cherry picked from commit 0434f8ba74adefe60597d95d30a455b9b2ece9b8)

asoc: tegra: wm8753 machine: add support for i2s in slave mode.
Add support for i2s as slave for playback and capture use cases.
Signed-off-by: Ankit Gupta <ankitgupta@nvidia.com>
Change-Id: Ib0596955cd0c6ac5ec57b0f3c6ecc9e4ed41268c
Reviewed-on: http://git-master/r/113208
(cherry picked from commit 0fc6b5e3a98d9f8866f73d7914b0c590334ce862)

asoc: tegra: aic326x machine: add support for i2s in slave mode.
Support for i2s in slave mode is added for playabck and capture
use cases.
Signed-off-by: Ankit Gupta <ankitgupta@nvidia.com>
Change-Id: I41f6459765f075703ad7f5f8dc9d4628dd853820
Reviewed-on: http://git-master/r/112874
(cherry picked from commit 9a89ede36a1dca6f53250444e819443fb6f28d09)

asoc: tegra: rt5640 machine: add support for i2s in slave mode.
Add support for i2s as slave for playback and capture use cases.
Signed-off-by: Ankit Gupta <ankitgupta@nvidia.com>
Change-Id: I850ec62149b8a8d244445b70658b632dbce06558
Reviewed-on: http://git-master/r/112878
(cherry picked from commit 1d51561c8edf47d8557a825450a48ee8743a185b)

asoc: tegra: max98088 machine: add support for codec i2s as slave.
Add support for codec i2s as slave during voice Call.
(Bug 998682)
Signed-off-by: Ankit Gupta <ankitgupta@nvidia.com>
Change-Id: I8fc54d367e9acd5417d270869cb5a9398b3b527f
Reviewed-on: http://git-master/r/110559
(cherry picked from commit 78a490867e131b1cc892094ddd844c2b892cafb6)

asoc: tegra: max98095 machine: add support for i2s in slave mode.
Add support for i2s as slave for playback and capture use cases.
Signed-off-by: Ankit Gupta <ankitgupta@nvidia.com>
Change-Id: I80944d403be94c55ad2ce31aea921d80ea7c088a
Reviewed-on: http://git-master/r/112875
Reviewed-on: http://git-master/r/118080
Reviewed-by: Scott Peterson <speterson@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sumit Bhattacharya <sumitb@nvidia.com>

1 files changed, 87 insertions, 45 deletions

diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
index 063aefe50507..dcd031209172 100644
--- a/sound/soc/tegra/tegra_wm8903.c
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -12,6 +12,8 @@
  * Author: Graeme Gregory
  *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
  *
+ * Copyright (c) 2012, NVIDIA CORPORATION. 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 as published by the Free Software Foundation.
@@ -40,7 +42,7 @@
 #include <linux/switch.h>
 #endif
 
-#include <mach/tegra_wm8903_pdata.h>
+#include <mach/tegra_asoc_pdata.h>
 
 #include <sound/core.h>
 #include <sound/jack.h>
@@ -67,7 +69,7 @@
 
 struct tegra_wm8903 {
 	struct tegra_asoc_utils_data util_data;
-	struct tegra_wm8903_platform_data *pdata;
+	struct tegra_asoc_platform_data *pdata;
 	struct regulator *spk_reg;
 	struct regulator *dmic_reg;
 	int gpio_requested;
@@ -86,9 +88,9 @@ static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_codec *codec = rtd->codec;
 	struct snd_soc_card *card = codec->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
 	int srate, mclk, i2s_daifmt;
 	int err;
-	struct clk *clk_m;
 	int rate;
 
 	srate = params_rate(params);
@@ -103,31 +105,17 @@ static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
 		break;
 	}
 
+	if(pdata->i2s_param[HIFI_CODEC].is_i2s_master) {
+		/* FIXME: Codec only requires >= 3MHz if OSR==0 */
+		while (mclk < 6000000)
+			mclk *= 2;
 
-
-	clk_m = clk_get_sys(NULL, "clk_m");
-	if (IS_ERR(clk_m)) {
-		dev_err(card->dev, "Can't retrieve clk clk_m\n");
-		err = PTR_ERR(clk_m);
-		return err;
+		i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
+					SND_SOC_DAIFMT_CBS_CFS;
+	} else {
+		i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
+					SND_SOC_DAIFMT_CBM_CFM;
 	}
-	rate = clk_get_rate(clk_m);
-	printk("extern1 rate=%d\n",rate);
-
-#if TEGRA30_I2S_MASTER_PLAYBACK
-	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
-	while (mclk < 6000000)
-		mclk *= 2;
-
-	i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
-		     SND_SOC_DAIFMT_CBS_CFS;
-#else
-	mclk = rate;
-
-	i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
-		     SND_SOC_DAIFMT_CBM_CFM;
-#endif
-
 
 	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
 	if (err < 0) {
@@ -141,13 +129,36 @@ static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
 
 	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
 
+	rate = clk_get_rate(machine->util_data.clk_cdev1);
+
 	/* Use DSP mode for mono on Tegra20 */
 	if ((params_channels(params) != 2) &&
-	    (machine_is_ventana() || machine_is_harmony() ||
-	    machine_is_kaen() || machine_is_aebl()))
+		(machine_is_ventana() || machine_is_harmony() ||
+		machine_is_kaen() || machine_is_aebl())) {
 		i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
-	else
-		i2s_daifmt |= SND_SOC_DAIFMT_I2S;
+	} else {
+		switch (pdata->i2s_param[HIFI_CODEC].i2s_mode) {
+			case TEGRA_DAIFMT_I2S :
+				i2s_daifmt |= SND_SOC_DAIFMT_I2S;
+				break;
+			case TEGRA_DAIFMT_DSP_A :
+				i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
+				break;
+			case TEGRA_DAIFMT_DSP_B :
+				i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
+				break;
+			case TEGRA_DAIFMT_LEFT_J :
+				i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
+				break;
+			case TEGRA_DAIFMT_RIGHT_J :
+				i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
+				break;
+			default :
+				dev_err(card->dev,
+				"Can't configure i2s format\n");
+				return -EINVAL;
+		}
+	}
 
 	err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
 	if (err < 0) {
@@ -161,8 +172,7 @@ static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
 		return err;
 	}
 
-	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
-					SND_SOC_CLOCK_IN);
+	err = snd_soc_dai_set_sysclk(codec_dai, 0, rate, SND_SOC_CLOCK_IN);
 	if (err < 0) {
 		dev_err(card->dev, "codec_dai clock not set\n");
 		return err;
@@ -190,10 +200,10 @@ static int tegra_bt_sco_hw_params(struct snd_pcm_substream *substream,
 					struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_card *card = rtd->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
-	int srate, mclk, min_mclk;
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
+	int srate, mclk, min_mclk, i2s_daifmt;
 	int err;
 
 	srate = params_rate(params);
@@ -229,10 +239,32 @@ static int tegra_bt_sco_hw_params(struct snd_pcm_substream *substream,
 
 	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
 
-	err = snd_soc_dai_set_fmt(cpu_dai,
-					SND_SOC_DAIFMT_DSP_A |
-					SND_SOC_DAIFMT_NB_NF |
-					SND_SOC_DAIFMT_CBS_CFS);
+	i2s_daifmt = SND_SOC_DAIFMT_NB_NF;
+	i2s_daifmt |= pdata->i2s_param[BT_SCO].is_i2s_master ?
+			SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;
+
+	switch (pdata->i2s_param[BT_SCO].i2s_mode) {
+		case TEGRA_DAIFMT_I2S :
+			i2s_daifmt |= SND_SOC_DAIFMT_I2S;
+			break;
+		case TEGRA_DAIFMT_DSP_A :
+			i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
+			break;
+		case TEGRA_DAIFMT_DSP_B :
+			i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
+			break;
+		case TEGRA_DAIFMT_LEFT_J :
+			i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
+			break;
+		case TEGRA_DAIFMT_RIGHT_J :
+			i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
+			break;
+		default :
+			dev_err(card->dev, "Can't configure i2s format\n");
+			return -EINVAL;
+	}
+
+	err = snd_soc_dai_set_fmt(rtd->cpu_dai, i2s_daifmt);
 	if (err < 0) {
 		dev_err(card->dev, "cpu_dai fmt not set\n");
 		return err;
@@ -408,7 +440,7 @@ static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct snd_soc_card *card = dapm->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
-	struct tegra_wm8903_platform_data *pdata = machine->pdata;
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
 
 	if (machine->spk_reg) {
 		if (SND_SOC_DAPM_EVENT_ON(event))
@@ -432,7 +464,7 @@ static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct snd_soc_card *card = dapm->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
-	struct tegra_wm8903_platform_data *pdata = machine->pdata;
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
 
 	if (!(machine->gpio_requested & GPIO_HP_MUTE))
 		return 0;
@@ -449,7 +481,7 @@ static int tegra_wm8903_event_int_mic(struct snd_soc_dapm_widget *w,
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct snd_soc_card *card = dapm->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
-	struct tegra_wm8903_platform_data *pdata = machine->pdata;
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
 
 	if (machine->dmic_reg) {
 		if (SND_SOC_DAPM_EVENT_ON(event))
@@ -473,7 +505,7 @@ static int tegra_wm8903_event_ext_mic(struct snd_soc_dapm_widget *w,
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct snd_soc_card *card = dapm->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
-	struct tegra_wm8903_platform_data *pdata = machine->pdata;
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
 
 	if (!(machine->gpio_requested & GPIO_EXT_MIC_EN))
 		return 0;
@@ -578,7 +610,7 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
 	struct snd_soc_dapm_context *dapm = &codec->dapm;
 	struct snd_soc_card *card = codec->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
-	struct tegra_wm8903_platform_data *pdata = machine->pdata;
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
 	int ret;
 
 	machine->bias_level = SND_SOC_BIAS_STANDBY;
@@ -792,7 +824,7 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &snd_soc_tegra_wm8903;
 	struct tegra_wm8903 *machine;
-	struct tegra_wm8903_platform_data *pdata;
+	struct tegra_asoc_platform_data *pdata;
 	int ret;
 
 	pdata = pdev->dev.platform_data;
@@ -895,6 +927,16 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
 		goto err_unregister_card;
 	}
 
+#ifndef CONFIG_ARCH_TEGRA_2x_SOC
+	ret = tegra_asoc_utils_set_parent(&machine->util_data,
+				pdata->i2s_param[HIFI_CODEC].is_i2s_master);
+	if (ret) {
+		dev_err(&pdev->dev, "tegra_asoc_utils_set_parent failed (%d)\n",
+			ret);
+		goto err_unregister_card;
+	}
+#endif
+
 	return 0;
 
 err_unregister_card:
@@ -914,7 +956,7 @@ static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
-	struct tegra_wm8903_platform_data *pdata = machine->pdata;
+	struct tegra_asoc_platform_data *pdata = machine->pdata;
 
 	if (machine->gpio_requested & GPIO_HP_DET)
 		snd_soc_jack_free_gpios(&tegra_wm8903_hp_jack,