[PATCH 6.9 09/25] ASoC: Intel: sof_sdw: use generic rtd_init function for Realtek SDW DMICs

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

6.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bard Liao <yung-chuan.liao@linux.intel.com>

commit bee2fe44679f1e6a5332d7f78587ccca4109919f upstream.

The only thing that the rt_xxx_rtd_init() functions do is to set
card->components. And we can set card->components with name_prefix
as rt712_sdca_dmic_rtd_init() does.
And sof_sdw_rtd_init() will always select the first dai with the
given dai->name from codec_info_list[]. Unfortunately, we have
different codecs with the same dai name. For example, dai name of
rt715 and rt715-sdca are both "rt715-aif2". Using a generic rtd_init
allow sof_sdw_rtd_init() run the rtd_init() callback from a similar
codec dai.

Fixes: 8266c73126b7 ("ASoC: Intel: sof_sdw: add common sdw dai link init")
Reviewed-by: Chao Song <chao.song@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240326160429.13560-25-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/intel/boards/Makefile          |    1 
 sound/soc/intel/boards/sof_sdw.c         |   12 +++----
 sound/soc/intel/boards/sof_sdw_common.h  |    1 
 sound/soc/intel/boards/sof_sdw_rt_dmic.c |   52 +++++++++++++++++++++++++++++++
 4 files changed, 60 insertions(+), 6 deletions(-)
 create mode 100644 sound/soc/intel/boards/sof_sdw_rt_dmic.c

--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -42,6 +42,7 @@ snd-soc-sof-sdw-objs += sof_sdw.o				\
 			sof_sdw_rt711.o sof_sdw_rt_sdca_jack_common.o	\
 			sof_sdw_rt712_sdca.o sof_sdw_rt715.o	\
 			sof_sdw_rt715_sdca.o sof_sdw_rt722_sdca.o	\
+			sof_sdw_rt_dmic.o			\
 			sof_sdw_cs42l42.o sof_sdw_cs42l43.o	\
 			sof_sdw_cs_amp.o			\
 			sof_sdw_dmic.o				\
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -730,7 +730,7 @@ static struct sof_sdw_codec_info codec_i
 				.dai_name = "rt712-sdca-dmic-aif1",
 				.dai_type = SOF_SDW_DAI_TYPE_MIC,
 				.dailink = {SDW_UNUSED_DAI_ID, SDW_DMIC_DAI_ID},
-				.rtd_init = rt712_sdca_dmic_rtd_init,
+				.rtd_init = rt_dmic_rtd_init,
 			},
 		},
 		.dai_num = 1,
@@ -760,7 +760,7 @@ static struct sof_sdw_codec_info codec_i
 				.dai_name = "rt712-sdca-dmic-aif1",
 				.dai_type = SOF_SDW_DAI_TYPE_MIC,
 				.dailink = {SDW_UNUSED_DAI_ID, SDW_DMIC_DAI_ID},
-				.rtd_init = rt712_sdca_dmic_rtd_init,
+				.rtd_init = rt_dmic_rtd_init,
 			},
 		},
 		.dai_num = 1,
@@ -822,7 +822,7 @@ static struct sof_sdw_codec_info codec_i
 				.dai_name = "rt715-aif2",
 				.dai_type = SOF_SDW_DAI_TYPE_MIC,
 				.dailink = {SDW_UNUSED_DAI_ID, SDW_DMIC_DAI_ID},
-				.rtd_init = rt715_sdca_rtd_init,
+				.rtd_init = rt_dmic_rtd_init,
 			},
 		},
 		.dai_num = 1,
@@ -837,7 +837,7 @@ static struct sof_sdw_codec_info codec_i
 				.dai_name = "rt715-aif2",
 				.dai_type = SOF_SDW_DAI_TYPE_MIC,
 				.dailink = {SDW_UNUSED_DAI_ID, SDW_DMIC_DAI_ID},
-				.rtd_init = rt715_sdca_rtd_init,
+				.rtd_init = rt_dmic_rtd_init,
 			},
 		},
 		.dai_num = 1,
@@ -852,7 +852,7 @@ static struct sof_sdw_codec_info codec_i
 				.dai_name = "rt715-aif2",
 				.dai_type = SOF_SDW_DAI_TYPE_MIC,
 				.dailink = {SDW_UNUSED_DAI_ID, SDW_DMIC_DAI_ID},
-				.rtd_init = rt715_rtd_init,
+				.rtd_init = rt_dmic_rtd_init,
 			},
 		},
 		.dai_num = 1,
@@ -867,7 +867,7 @@ static struct sof_sdw_codec_info codec_i
 				.dai_name = "rt715-aif2",
 				.dai_type = SOF_SDW_DAI_TYPE_MIC,
 				.dailink = {SDW_UNUSED_DAI_ID, SDW_DMIC_DAI_ID},
-				.rtd_init = rt715_rtd_init,
+				.rtd_init = rt_dmic_rtd_init,
 			},
 		},
 		.dai_num = 1,
--- a/sound/soc/intel/boards/sof_sdw_common.h
+++ b/sound/soc/intel/boards/sof_sdw_common.h
@@ -190,6 +190,7 @@ int rt712_sdca_dmic_rtd_init(struct snd_
 int rt712_spk_rtd_init(struct snd_soc_pcm_runtime *rtd);
 int rt715_rtd_init(struct snd_soc_pcm_runtime *rtd);
 int rt715_sdca_rtd_init(struct snd_soc_pcm_runtime *rtd);
+int rt_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd);
 int rt_amp_spk_rtd_init(struct snd_soc_pcm_runtime *rtd);
 int rt_sdca_jack_rtd_init(struct snd_soc_pcm_runtime *rtd);
 
--- /dev/null
+++ b/sound/soc/intel/boards/sof_sdw_rt_dmic.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2024 Intel Corporation
+
+/*
+ * sof_sdw_rt_dmic - Helpers to handle Realtek SDW DMIC from generic machine driver
+ */
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "sof_board_helpers.h"
+#include "sof_sdw_common.h"
+
+static const char * const dmics[] = {
+	"rt715",
+	"rt712-sdca-dmic",
+};
+
+int rt_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct snd_soc_component *component;
+	struct snd_soc_dai *codec_dai;
+	char *mic_name;
+
+	codec_dai = get_codec_dai_by_name(rtd, dmics, ARRAY_SIZE(dmics));
+	if (!codec_dai)
+		return -EINVAL;
+
+	component = codec_dai->component;
+
+	/*
+	 * rt715-sdca (aka rt714) is a special case that uses different name in card->components
+	 * and component->name_prefix.
+	 */
+	if (!strcmp(component->name_prefix, "rt714"))
+		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "rt715-sdca");
+	else
+		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s", component->name_prefix);
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+					  "%s mic:%s", card->components,
+					  mic_name);
+	if (!card->components)
+		return -ENOMEM;
+
+	dev_dbg(card->dev, "card->components: %s\n", card->components);
+
+	return 0;
+}
+MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);