From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio

---
 kernel/sound/soc/samsung/neo1973_wm8753.c |  153 +++++++++++++++++++-------------------------------
 1 files changed, 59 insertions(+), 94 deletions(-)

diff --git a/kernel/sound/soc/samsung/neo1973_wm8753.c b/kernel/sound/soc/samsung/neo1973_wm8753.c
index 65602b9..9266070 100644
--- a/kernel/sound/soc/samsung/neo1973_wm8753.c
+++ b/kernel/sound/soc/samsung/neo1973_wm8753.c
@@ -1,38 +1,30 @@
-/*
- * neo1973_wm8753.c  --  SoC audio for Openmoko Neo1973 and Freerunner devices
- *
- * Copyright 2007 Openmoko Inc
- * Author: Graeme Gregory <graeme@openmoko.org>
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- * Copyright 2009 Wolfson Microelectronics
- *
- *  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;  either version 2 of the  License, or (at your
- *  option) any later version.
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// neo1973_wm8753.c - SoC audio for Openmoko Neo1973 and Freerunner devices
+//
+// Copyright 2007 Openmoko Inc
+// Author: Graeme Gregory <graeme@openmoko.org>
+// Copyright 2007 Wolfson Microelectronics PLC.
+// Author: Graeme Gregory
+//         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+// Copyright 2009 Wolfson Microelectronics
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 
 #include <sound/soc.h>
 
-#include <mach/gpio-samsung.h>
-#include <asm/mach-types.h>
 #include "regs-iis.h"
-
 #include "../codecs/wm8753.h"
 #include "s3c24xx-i2s.h"
 
 static int neo1973_hifi_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_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	unsigned int pll_out = 0, bclk = 0;
 	int ret = 0;
 	unsigned long iis_clkrate;
@@ -104,8 +96,8 @@
 
 static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
 {
-	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);
 
 	/* disable the PLL */
 	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
@@ -122,8 +114,8 @@
 static int neo1973_voice_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);
 	unsigned int pcmdiv = 0;
 	int ret = 0;
 	unsigned long iis_clkrate;
@@ -159,8 +151,8 @@
 
 static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
 {
-	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);
 
 	/* disable the PLL */
 	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
@@ -171,6 +163,7 @@
 	.hw_free = neo1973_voice_hw_free,
 };
 
+static struct gpio_desc *gpiod_hp_in, *gpiod_amp_shut;
 static int gta02_speaker_enabled;
 
 static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
@@ -178,7 +171,7 @@
 {
 	gta02_speaker_enabled = ucontrol->value.integer.value[0];
 
-	gpio_set_value(S3C2410_GPJ(2), !gta02_speaker_enabled);
+	gpiod_set_value(gpiod_hp_in, !gta02_speaker_enabled);
 
 	return 0;
 }
@@ -193,7 +186,7 @@
 static int lm4853_event(struct snd_soc_dapm_widget *w,
 			struct snd_kcontrol *k, int event)
 {
-	gpio_set_value(S3C2410_GPJ(1), SND_SOC_DAPM_EVENT_OFF(event));
+	gpiod_set_value(gpiod_amp_shut, SND_SOC_DAPM_EVENT_OFF(event));
 
 	return 0;
 }
@@ -271,52 +264,50 @@
 	return 0;
 }
 
+SND_SOC_DAILINK_DEFS(wm8753,
+	DAILINK_COMP_ARRAY(COMP_CPU("s3c24xx-iis")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm8753.0-001a", "wm8753-hifi")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("s3c24xx-iis")));
+
+SND_SOC_DAILINK_DEFS(bluetooth,
+	DAILINK_COMP_ARRAY(COMP_CPU("bt-sco-pcm")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm8753.0-001a", "wm8753-voice")));
+
 static struct snd_soc_dai_link neo1973_dai[] = {
 { /* Hifi Playback - for similatious use with voice below */
 	.name = "WM8753",
 	.stream_name = "WM8753 HiFi",
-	.platform_name = "s3c24xx-iis",
-	.cpu_dai_name = "s3c24xx-iis",
-	.codec_dai_name = "wm8753-hifi",
-	.codec_name = "wm8753.0-001a",
 	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 		   SND_SOC_DAIFMT_CBM_CFM,
 	.init = neo1973_wm8753_init,
 	.ops = &neo1973_hifi_ops,
+	SND_SOC_DAILINK_REG(wm8753),
 },
 { /* Voice via BT */
 	.name = "Bluetooth",
 	.stream_name = "Voice",
-	.cpu_dai_name = "bt-sco-pcm",
-	.codec_dai_name = "wm8753-voice",
-	.codec_name = "wm8753.0-001a",
 	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
 		   SND_SOC_DAIFMT_CBS_CFS,
 	.ops = &neo1973_voice_ops,
+	SND_SOC_DAILINK_REG(bluetooth),
 },
 };
 
 static struct snd_soc_aux_dev neo1973_aux_devs[] = {
 	{
-		.name = "dfbmcs320",
-		.codec_name = "dfbmcs320.0",
+		.dlc = COMP_AUX("dfbmcs320.0"),
 	},
 };
 
 static struct snd_soc_codec_conf neo1973_codec_conf[] = {
 	{
-		.dev_name = "lm4857.0-007c",
+		.dlc = COMP_CODEC_CONF("lm4857.0-007c"),
 		.name_prefix = "Amp",
 	},
 };
 
-static const struct gpio neo1973_gta02_gpios[] = {
-	{ S3C2410_GPJ(2), GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
-	{ S3C2410_GPJ(1), GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
-};
-
 static struct snd_soc_card neo1973 = {
-	.name = "neo1973",
+	.name = "neo1973gta02",
 	.owner = THIS_MODULE,
 	.dai_link = neo1973_dai,
 	.num_links = ARRAY_SIZE(neo1973_dai),
@@ -334,62 +325,36 @@
 	.fully_routed = true,
 };
 
-static struct platform_device *neo1973_snd_device;
-
-static int __init neo1973_init(void)
+static int neo1973_probe(struct platform_device *pdev)
 {
-	int ret;
+	struct device *dev = &pdev->dev;
 
-	if (!machine_is_neo1973_gta02())
-		return -ENODEV;
-
-	if (machine_is_neo1973_gta02()) {
-		neo1973.name = "neo1973gta02";
-		neo1973.num_aux_devs = 1;
-
-		ret = gpio_request_array(neo1973_gta02_gpios,
-				ARRAY_SIZE(neo1973_gta02_gpios));
-		if (ret)
-			return ret;
+	gpiod_hp_in = devm_gpiod_get(dev, "hp", GPIOD_OUT_HIGH);
+	if (IS_ERR(gpiod_hp_in)) {
+		dev_err(dev, "missing gpio %s\n", "hp");
+		return PTR_ERR(gpiod_hp_in);
+	}
+	gpiod_amp_shut = devm_gpiod_get(dev, "amp-shut", GPIOD_OUT_HIGH);
+	if (IS_ERR(gpiod_amp_shut)) {
+		dev_err(dev, "missing gpio %s\n", "amp-shut");
+		return PTR_ERR(gpiod_amp_shut);
 	}
 
-	neo1973_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!neo1973_snd_device) {
-		ret = -ENOMEM;
-		goto err_gpio_free;
-	}
-
-	platform_set_drvdata(neo1973_snd_device, &neo1973);
-	ret = platform_device_add(neo1973_snd_device);
-
-	if (ret)
-		goto err_put_device;
-
-	return 0;
-
-err_put_device:
-	platform_device_put(neo1973_snd_device);
-err_gpio_free:
-	if (machine_is_neo1973_gta02()) {
-		gpio_free_array(neo1973_gta02_gpios,
-				ARRAY_SIZE(neo1973_gta02_gpios));
-	}
-	return ret;
+	neo1973.dev = dev;
+	return devm_snd_soc_register_card(dev, &neo1973);
 }
-module_init(neo1973_init);
 
-static void __exit neo1973_exit(void)
-{
-	platform_device_unregister(neo1973_snd_device);
-
-	if (machine_is_neo1973_gta02()) {
-		gpio_free_array(neo1973_gta02_gpios,
-				ARRAY_SIZE(neo1973_gta02_gpios));
-	}
-}
-module_exit(neo1973_exit);
+struct platform_driver neo1973_audio = {
+	.driver = {
+		.name = "neo1973-audio",
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = neo1973_probe,
+};
+module_platform_driver(neo1973_audio);
 
 /* Module information */
 MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
 MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:neo1973-audio");

--
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