From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800

---
 kernel/sound/soc/intel/boards/cht_bsw_rt5672.c |  138 ++++++++++++++++++++++++++++------------------
 1 files changed, 84 insertions(+), 54 deletions(-)

diff --git a/kernel/sound/soc/intel/boards/cht_bsw_rt5672.c b/kernel/sound/soc/intel/boards/cht_bsw_rt5672.c
index e5aa130..8442be9 100644
--- a/kernel/sound/soc/intel/boards/cht_bsw_rt5672.c
+++ b/kernel/sound/soc/intel/boards/cht_bsw_rt5672.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  cht_bsw_rt5672.c - ASoc Machine driver for Intel Cherryview-based platforms
  *                     Cherrytrail and Braswell, with RT5672 codec.
@@ -5,17 +6,10 @@
  *  Copyright (C) 2014 Intel Corp
  *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
  *          Mengdong Lin <mengdong.lin@intel.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  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/gpio/consumer.h>
+#include <linux/input.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
@@ -149,8 +143,8 @@
 static int cht_aif1_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 *codec_dai = rtd->codec_dai;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	int ret;
 
 	/* set codec PLL source to the 19.2MHz platform clock (MCLK) */
@@ -182,7 +176,7 @@
 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 {
 	int ret;
-	struct snd_soc_dai *codec_dai = runtime->codec_dai;
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
 	struct snd_soc_component *component = codec_dai->component;
 	struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
 
@@ -211,6 +205,10 @@
 				    ARRAY_SIZE(cht_bsw_headset_pins));
         if (ret)
                 return ret;
+
+	snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+	snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
+	snd_jack_set_key(ctx->headset.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
 
 	rt5670_set_jack_detect(component, &ctx->headset);
 	if (ctx->mclk) {
@@ -255,21 +253,24 @@
 	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 
 	/*
-	 * Default mode for SSP configuration is TDM 4 slot
+	 * The default mode for the cpu-dai is TDM 4 slot. The default mode
+	 * for the codec-dai is I2S. So we need to either set the cpu-dai to
+	 * I2S mode to match the codec-dai, or set the codec-dai to TDM 4 slot
+	 * (or program both to yet another mode).
+	 * One board, the Lenovo Miix 2 10, uses not 1 but 2 codecs connected
+	 * to SSP2. The second piggy-backed, output-only codec is inside the
+	 * keyboard-dock (which has extra speakers). Unlike the main rt5672
+	 * codec, we cannot configure this codec, it is hard coded to use
+	 * 2 channel 24 bit I2S. For this to work we must use I2S mode on this
+	 * board. Since we only support 2 channels anyways, there is no need
+	 * for TDM on any cht-bsw-rt5672 designs. So we use I2S 2ch everywhere.
 	 */
-	ret = snd_soc_dai_set_fmt(rtd->codec_dai,
-				  SND_SOC_DAIFMT_DSP_B |
-				  SND_SOC_DAIFMT_IB_NF |
+	ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
+				  SND_SOC_DAIFMT_I2S     |
+				  SND_SOC_DAIFMT_NB_NF   |
 				  SND_SOC_DAIFMT_CBS_CFS);
 	if (ret < 0) {
-		dev_err(rtd->dev, "can't set format to TDM %d\n", ret);
-		return ret;
-	}
-
-	/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
-	ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0xF, 0xF, 4, 24);
-	if (ret < 0) {
-		dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
+		dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 		return ret;
 	}
 
@@ -290,32 +291,44 @@
 	.hw_params = cht_aif1_hw_params,
 };
 
+SND_SOC_DAILINK_DEF(dummy,
+	DAILINK_COMP_ARRAY(COMP_DUMMY()));
+
+SND_SOC_DAILINK_DEF(media,
+	DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
+
+SND_SOC_DAILINK_DEF(deepbuffer,
+	DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
+
+SND_SOC_DAILINK_DEF(ssp2_port,
+	DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
+SND_SOC_DAILINK_DEF(ssp2_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5670:00",
+				      "rt5670-aif1")));
+
+SND_SOC_DAILINK_DEF(platform,
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
+
 static struct snd_soc_dai_link cht_dailink[] = {
 	/* Front End DAI links */
 	[MERR_DPCM_AUDIO] = {
 		.name = "Audio Port",
 		.stream_name = "Audio",
-		.cpu_dai_name = "media-cpu-dai",
-		.codec_dai_name = "snd-soc-dummy-dai",
-		.codec_name = "snd-soc-dummy",
-		.platform_name = "sst-mfld-platform",
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 		.ops = &cht_aif1_ops,
+		SND_SOC_DAILINK_REG(media, dummy, platform),
 	},
 	[MERR_DPCM_DEEP_BUFFER] = {
 		.name = "Deep-Buffer Audio Port",
 		.stream_name = "Deep-Buffer Audio",
-		.cpu_dai_name = "deepbuffer-cpu-dai",
-		.codec_dai_name = "snd-soc-dummy-dai",
-		.codec_name = "snd-soc-dummy",
-		.platform_name = "sst-mfld-platform",
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
 		.ops = &cht_aif1_ops,
+		SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
 	},
 
 	/* Back End DAI links */
@@ -323,17 +336,14 @@
 		/* SSP2 - Codec */
 		.name = "SSP2-Codec",
 		.id = 0,
-		.cpu_dai_name = "ssp2-port",
-		.platform_name = "sst-mfld-platform",
 		.no_pcm = 1,
 		.nonatomic = true,
-		.codec_dai_name = "rt5670-aif1",
-		.codec_name = "i2c-10EC5670:00",
 		.init = cht_codec_init,
 		.be_hw_params_fixup = cht_codec_fixup,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 		.ops = &cht_be_ssp2_ops,
+		SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
 	},
 };
 
@@ -342,7 +352,7 @@
 	struct snd_soc_component *component;
 	struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 
-	list_for_each_entry(component, &card->component_dev_list, card_list) {
+	for_each_card_components(card, component) {
 		if (!strncmp(component->name,
 			     ctx->codec_name, sizeof(ctx->codec_name))) {
 
@@ -359,7 +369,7 @@
 	struct snd_soc_component *component;
 	struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 
-	list_for_each_entry(component, &card->component_dev_list, card_list) {
+	for_each_card_components(card, component) {
 		if (!strncmp(component->name,
 			     ctx->codec_name, sizeof(ctx->codec_name))) {
 
@@ -372,9 +382,19 @@
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
+/* use space before codec name to simplify card ID, and simplify driver name */
+#define CARD_NAME "bytcht rt5672" /* card name will be 'sof-bytcht rt5672' */
+#define DRIVER_NAME "SOF"
+#else
+#define CARD_NAME "cht-bsw-rt5672"
+#define DRIVER_NAME NULL /* card name will be used for driver name */
+#endif
+
 /* SoC card */
 static struct snd_soc_card snd_soc_card_cht = {
-	.name = "cht-bsw-rt5672",
+	.name = CARD_NAME,
+	.driver_name = DRIVER_NAME,
 	.owner = THIS_MODULE,
 	.dai_link = cht_dailink,
 	.num_links = ARRAY_SIZE(cht_dailink),
@@ -395,31 +415,39 @@
 	int ret_val = 0;
 	struct cht_mc_private *drv;
 	struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
-	const char *i2c_name;
+	const char *platform_name;
+	struct acpi_device *adev;
 	int i;
 
-	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
+	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
 	if (!drv)
 		return -ENOMEM;
 
 	strcpy(drv->codec_name, RT5672_I2C_DEFAULT);
 
 	/* fixup codec name based on HID */
-	if (mach) {
-		i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
-		if (i2c_name) {
-			snprintf(drv->codec_name, sizeof(drv->codec_name),
-				 "i2c-%s", i2c_name);
-			for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
-				if (!strcmp(cht_dailink[i].codec_name,
-					    RT5672_I2C_DEFAULT)) {
-					cht_dailink[i].codec_name =
-						drv->codec_name;
-					break;
-				}
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
+		snprintf(drv->codec_name, sizeof(drv->codec_name),
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
+		for (i = 0; i < ARRAY_SIZE(cht_dailink); i++) {
+			if (!strcmp(cht_dailink[i].codecs->name,
+				    RT5672_I2C_DEFAULT)) {
+				cht_dailink[i].codecs->name = drv->codec_name;
+				break;
 			}
 		}
 	}
+
+	/* override plaform name, if required */
+	snd_soc_card_cht.dev = &pdev->dev;
+	platform_name = mach->mach_params.platform;
+
+	ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
+							platform_name);
+	if (ret_val)
+		return ret_val;
 
 	drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
 	if (IS_ERR(drv->mclk)) {
@@ -431,7 +459,6 @@
 	snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 
 	/* register the soc card */
-	snd_soc_card_cht.dev = &pdev->dev;
 	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
 	if (ret_val) {
 		dev_err(&pdev->dev,
@@ -445,6 +472,9 @@
 static struct platform_driver snd_cht_mc_driver = {
 	.driver = {
 		.name = "cht-bsw-rt5672",
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
+		.pm = &snd_soc_pm_ops,
+#endif
 	},
 	.probe = snd_cht_mc_probe,
 };

--
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