linux-kernel - [PATCH] ASoC: imx-card: Add WM8524 support

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Message-ID: <20250619062413.3946142-1-chancel.liu@nxp.com>
Date: Thu, 19 Jun 2025 15:24:13 +0900
From: Chancel Liu <chancel.liu@....com>
To: shengjiu.wang@...il.com,
	Xiubo.Lee@...il.com,
	festevam@...il.com,
	nicoleotsuka@...il.com,
	lgirdwood@...il.com,
	broonie@...nel.org,
	perex@...ex.cz,
	tiwai@...e.com,
	shawnguo@...nel.org,
	linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-sound@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] ASoC: imx-card: Add WM8524 support

WM8524 is a stereo DAC. Add support for this codec in imx-card ASoC
machine driver.

Signed-off-by: Chancel Liu <chancel.liu@....com>
---
 sound/soc/fsl/imx-card.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index ea5dbb54b584..c2c22a058c46 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c
@@ -26,6 +26,7 @@ enum codec_type {
 	CODEC_AK4497,
 	CODEC_AK5552,
 	CODEC_CS42888,
+	CODEC_WM8524,
 };
 
 /*
@@ -196,6 +197,13 @@ static struct imx_akcodec_tdm_fs_mul cs42888_tdm_fs_mul[] = {
 	{ .min = 256,	.max = 256,	.mul = 256 },
 };
 
+static struct imx_akcodec_fs_mul wm8524_fs_mul[] = {
+	{ .rmin = 8000,   .rmax = 32000,  .wmin = 256,  .wmax = 1152, },
+	{ .rmin = 44100,  .rmax = 48000,  .wmin = 256,  .wmax = 768, },
+	{ .rmin = 88200,  .rmax = 96000,  .wmin = 128,  .wmax = 384, },
+	{ .rmin = 176400, .rmax = 192000, .wmin = 128,  .wmax = 192, },
+};
+
 static const u32 akcodec_rates[] = {
 	8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
 	96000, 176400, 192000, 352800, 384000, 705600, 768000,
@@ -229,6 +237,10 @@ static const u32 cs42888_tdm_channels[] = {
 	1, 2, 3, 4, 5, 6, 7, 8,
 };
 
+static const u32 wm8524_channels[] = {
+	2,
+};
+
 static bool format_is_dsd(struct snd_pcm_hw_params *params)
 {
 	snd_pcm_format_t format = params_format(params);
@@ -261,6 +273,7 @@ static bool codec_is_akcodec(unsigned int type)
 	case CODEC_AK5558:
 	case CODEC_AK5552:
 	case CODEC_CS42888:
+	case CODEC_WM8524:
 		return true;
 	default:
 		break;
@@ -632,6 +645,8 @@ static int imx_card_parse_of(struct imx_card_data *data)
 				plat_data->type = CODEC_AK5552;
 			else if (!strcmp(link->codecs->dai_name, "cs42888"))
 				plat_data->type = CODEC_CS42888;
+			else if (!strcmp(link->codecs->dai_name, "wm8524-hifi"))
+				plat_data->type = CODEC_WM8524;
 
 		} else {
 			link->codecs	 = &snd_soc_dummy_dlc;
@@ -805,6 +820,10 @@ static int imx_card_probe(struct platform_device *pdev)
 		data->dapm_routes[1].sink = "CPU-Capture";
 		data->dapm_routes[1].source = "Capture";
 		break;
+	case CODEC_WM8524:
+		data->dapm_routes[0].sink = "Playback";
+		data->dapm_routes[0].source = "CPU-Playback";
+		break;
 	default:
 		break;
 	}
@@ -854,6 +873,11 @@ static int imx_card_probe(struct platform_device *pdev)
 			plat_data->support_tdm_channels = cs42888_tdm_channels;
 			plat_data->num_tdm_channels = ARRAY_SIZE(cs42888_tdm_channels);
 			break;
+		case CODEC_WM8524:
+			plat_data->fs_mul = wm8524_fs_mul;
+			plat_data->num_fs_mul = ARRAY_SIZE(wm8524_fs_mul);
+			plat_data->support_channels = wm8524_channels;
+			plat_data->num_channels = ARRAY_SIZE(wm8524_channels);
 		default:
 			break;
 		}
-- 
2.47.1