linux-kernel - [PATCH 09/13] ASoC: amd: acp: add machine driver support for pdm use case

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Date:   Sat, 21 Oct 2023 20:20:50 +0530
From:   Syed Saba Kareem <Syed.SabaKareem@....com>
To:     <broonie@...nel.org>, <alsa-devel@...a-project.org>
CC:     <Vijendar.Mukunda@....com>, <Basavaraj.Hiregoudar@....com>,
        <Sunil-kumar.Dommati@....com>, <mario.limonciello@....com>,
        <venkataprasad.potturu@....com>, <arungopal.kondaveeti@....com>,
        <mastan.katragadda@....com>, <juan.martinez@....com>,
        Syed Saba Kareem <Syed.SabaKareem@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        "Jaroslav Kysela" <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Marian Postevca <posteuca@...ex.one>,
        Alper Nebi Yasak <alpernebiyasak@...il.com>,
        "Claudiu Beznea" <claudiu.beznea@...rochip.com>,
        Gaosheng Cui <cuigaosheng1@...wei.com>,
        Jarkko Nikula <jarkko.nikula@...mer.com>,
        "open list" <linux-kernel@...r.kernel.org>
Subject: [PATCH 09/13] ASoC: amd: acp: add machine driver support for pdm use case

add pdm use case machine driver support

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@....com>
---
 sound/soc/amd/acp/acp-legacy-mach.c | 12 ++++++++++++
 sound/soc/amd/acp/acp-platform.c    | 29 ++++++++++++++++++-----------
 2 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/sound/soc/amd/acp/acp-legacy-mach.c b/sound/soc/amd/acp/acp-legacy-mach.c
index 1ab3edffe0ce..47c3b5f167f5 100644
--- a/sound/soc/amd/acp/acp-legacy-mach.c
+++ b/sound/soc/amd/acp/acp-legacy-mach.c
@@ -84,6 +84,11 @@ static struct acp_card_drvdata rt5682s_rt1019_rmb_data = {
 	.tdm_mode = false,
 };
 
+static struct acp_card_drvdata acp_dmic_data = {
+	.dmic_cpu_id = DMIC,
+	.dmic_codec_id = DMIC,
+};
+
 static bool acp_asoc_init_ops(struct acp_card_drvdata *priv)
 {
 	bool has_ops = false;
@@ -165,6 +170,8 @@ static int acp_asoc_probe(struct platform_device *pdev)
 			card->name, ret);
 		goto out;
 	}
+	if (!strcmp(pdev->name, "acp-pdm-mach"))
+		acp_card_drvdata->platform =  *((int *)dev->platform_data);
 
 	dmi_id = dmi_first_match(acp_quirk_table);
 	if (dmi_id && dmi_id->driver_data)
@@ -214,6 +221,10 @@ static const struct platform_device_id board_ids[] = {
 		.name = "rmb-rt5682s-rt1019",
 		.driver_data = (kernel_ulong_t)&rt5682s_rt1019_rmb_data,
 	},
+	{
+		.name = "acp-pdm-mach",
+		.driver_data = (kernel_ulong_t)&acp_dmic_data,
+	},
 	{ }
 };
 static struct platform_driver acp_asoc_audio = {
@@ -235,4 +246,5 @@ MODULE_ALIAS("platform:acp3xalc5682s1019");
 MODULE_ALIAS("platform:acp3x-es83xx");
 MODULE_ALIAS("platform:rmb-nau8825-max");
 MODULE_ALIAS("platform:rmb-rt5682s-rt1019");
+MODULE_ALIAS("platform:acp-pdm-mach");
 MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/amd/acp/acp-platform.c b/sound/soc/amd/acp/acp-platform.c
index f516daf6fef4..aaac8aa744cb 100644
--- a/sound/soc/amd/acp/acp-platform.c
+++ b/sound/soc/amd/acp/acp-platform.c
@@ -21,6 +21,8 @@
 #include <linux/dma-mapping.h>
 
 #include "amd.h"
+#include "../mach-config.h"
+#include "acp-mach.h"
 
 #define DRV_NAME "acp_i2s_dma"
 
@@ -69,20 +71,25 @@ static const struct snd_pcm_hardware acp_pcm_hardware_capture = {
 int acp_machine_select(struct acp_dev_data *adata)
 {
 	struct snd_soc_acpi_mach *mach;
-	int size;
-
-	size = sizeof(*adata->machines);
-	mach = snd_soc_acpi_find_machine(adata->machines);
-	if (!mach) {
-		dev_err(adata->dev, "warning: No matching ASoC machine driver found\n");
-		return -EINVAL;
+	int size, platform;
+
+	if (adata->flag == FLAG_AMD_LEGACY_ONLY_DMIC) {
+		platform = adata->platform;
+		adata->mach_dev = platform_device_register_data(adata->dev, "acp-pdm-mach",
+								PLATFORM_DEVID_NONE, &platform,
+								sizeof(platform));
+	} else {
+		size = sizeof(*adata->machines);
+		mach = snd_soc_acpi_find_machine(adata->machines);
+		if (!mach) {
+			dev_err(adata->dev, "warning: No matching ASoC machine driver found\n");
+			return -EINVAL;
+		}
+		adata->mach_dev = platform_device_register_data(adata->dev, mach->drv_name,
+								PLATFORM_DEVID_NONE, mach, size);
 	}
-
-	adata->mach_dev = platform_device_register_data(adata->dev, mach->drv_name,
-							PLATFORM_DEVID_NONE, mach, size);
 	if (IS_ERR(adata->mach_dev))
 		dev_warn(adata->dev, "Unable to register Machine device\n");
-
 	return 0;
 }
 EXPORT_SYMBOL_NS_GPL(acp_machine_select, SND_SOC_ACP_COMMON);
-- 
2.25.1