linux-kernel - [PATCH v4 23/27] ALSA: hda/cs8409: Set fixed sample rate of 48kHz for CS42L42

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Date:   Wed, 11 Aug 2021 19:56:50 +0100
From:   Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
To:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC:     <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>,
        <linux-kernel@...r.kernel.org>,
        Stefan Binding <sbinding@...nsource.cirrus.com>
Subject: [PATCH v4 23/27] ALSA: hda/cs8409: Set fixed sample rate of 48kHz for CS42L42

From: Stefan Binding <sbinding@...nsource.cirrus.com>

CS42L42 is configured to use a fixed sample rate of 48kHz.

Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
---

Changes in v2:
- No changes

Changes in v3:
- No changes

Changes in v4:
- No changes

 sound/pci/hda/patch_cs8409-tables.c | 8 ++++++++
 sound/pci/hda/patch_cs8409.c        | 6 ++++++
 sound/pci/hda/patch_cs8409.h        | 2 ++
 3 files changed, 16 insertions(+)

diff --git a/sound/pci/hda/patch_cs8409-tables.c b/sound/pci/hda/patch_cs8409-tables.c
index a39b2c20f61c..a9a0b8e3b2a9 100644
--- a/sound/pci/hda/patch_cs8409-tables.c
+++ b/sound/pci/hda/patch_cs8409-tables.c
@@ -45,6 +45,14 @@ const struct snd_kcontrol_new cs42l42_adc_volume_mixer = {
 			 HDA_INPUT, CS42L42_VOL_ADC) | HDA_AMP_VAL_MIN_MUTE
 };
 
+const struct hda_pcm_stream cs42l42_48k_pcm_analog_playback = {
+	.rates = SNDRV_PCM_RATE_48000, /* fixed rate */
+};
+
+const struct hda_pcm_stream cs42l42_48k_pcm_analog_capture = {
+	.rates = SNDRV_PCM_RATE_48000, /* fixed rate */
+};
+
 /******************************************************************************
  *                   BULLSEYE / WARLOCK / CYBORG Specific Arrays
  *                               CS8409/CS42L42
diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c
index daf9c07d10c4..897c48140d8b 100644
--- a/sound/pci/hda/patch_cs8409.c
+++ b/sound/pci/hda/patch_cs8409.c
@@ -912,6 +912,9 @@ void cs8409_cs42l42_fixups(struct hda_codec *codec, const struct hda_fixup *fix,
 
 		break;
 	case HDA_FIXUP_ACT_PROBE:
+		/* Fix Sample Rate to 48kHz */
+		spec->gen.stream_analog_playback = &cs42l42_48k_pcm_analog_playback;
+		spec->gen.stream_analog_capture = &cs42l42_48k_pcm_analog_capture;
 		/* Set initial DMIC volume to -26 dB */
 		snd_hda_codec_amp_init_stereo(codec, CS8409_CS42L42_DMIC_ADC_PIN_NID,
 					      HDA_INPUT, 0, 0xff, 0x19);
@@ -1105,6 +1108,9 @@ void dolphin_fixups(struct hda_codec *codec, const struct hda_fixup *fix, int ac
 
 		break;
 	case HDA_FIXUP_ACT_PROBE:
+		/* Fix Sample Rate to 48kHz */
+		spec->gen.stream_analog_playback = &cs42l42_48k_pcm_analog_playback;
+		spec->gen.stream_analog_capture = &cs42l42_48k_pcm_analog_capture;
 		snd_hda_gen_add_kctl(&spec->gen, "Headphone Playback Volume",
 				     &cs42l42_dac_volume_mixer);
 		snd_hda_gen_add_kctl(&spec->gen, "Mic Capture Volume", &cs42l42_adc_volume_mixer);
diff --git a/sound/pci/hda/patch_cs8409.h b/sound/pci/hda/patch_cs8409.h
index 1b5a8d04ba0f..2208be2ffad1 100644
--- a/sound/pci/hda/patch_cs8409.h
+++ b/sound/pci/hda/patch_cs8409.h
@@ -335,6 +335,8 @@ int cs42l42_volume_info(struct snd_kcontrol *kctrl, struct snd_ctl_elem_info *ui
 int cs42l42_volume_get(struct snd_kcontrol *kctrl, struct snd_ctl_elem_value *uctrl);
 int cs42l42_volume_put(struct snd_kcontrol *kctrl, struct snd_ctl_elem_value *uctrl);
 
+extern const struct hda_pcm_stream cs42l42_48k_pcm_analog_playback;
+extern const struct hda_pcm_stream cs42l42_48k_pcm_analog_capture;
 extern const struct snd_pci_quirk cs8409_fixup_tbl[];
 extern const struct hda_model_fixup cs8409_models[];
 extern const struct hda_fixup cs8409_fixups[];
-- 
2.25.1