ALSA: Fix sample rate of Lenovo Ideapad to 44.1kHz

Noises can be heard on analog outputs of (some model of) Lenovo
Ideapad due to the hardware problem, and the only workaround right now
is to fix the sample rate to 44.1kHz.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6325ea43cf087f0fb288e7aeec82519b5ef651ed..b794cba494c377f5c4be6396bfbd2234f3d7bd6b 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -12845,6 +12845,27 @@ static int alc269_auto_create_analog_input_ctls(struct alc_spec *spec,
 #define alc269_pcm_digital_playback    alc880_pcm_digital_playback
 #define alc269_pcm_digital_capture     alc880_pcm_digital_capture
 
+static struct hda_pcm_stream alc269_44k_pcm_analog_playback = {
+       .substreams = 1,
+       .channels_min = 2,
+       .channels_max = 8,
+       .rates = SNDRV_PCM_RATE_44100, /* fixed rate */
+       /* NID is set in alc_build_pcms */
+       .ops = {
+               .open = alc880_playback_pcm_open,
+               .prepare = alc880_playback_pcm_prepare,
+               .cleanup = alc880_playback_pcm_cleanup
+       },
+};
+
+static struct hda_pcm_stream alc269_44k_pcm_analog_capture = {
+       .substreams = 1,
+       .channels_min = 2,
+       .channels_max = 2,
+       .rates = SNDRV_PCM_RATE_44100, /* fixed rate */
+       /* NID is set in alc_build_pcms */
+};
+
 /*
  * BIOS auto configuration
  */
@@ -13060,9 +13081,16 @@ static int patch_alc269(struct hda_codec *codec)
                setup_preset(spec, &alc269_presets[board_config]);
 
        spec->stream_name_analog = "ALC269 Analog";
-       spec->stream_analog_playback = &alc269_pcm_analog_playback;
-       spec->stream_analog_capture = &alc269_pcm_analog_capture;
-
+       if (codec->subsystem_id == 0x17aa3bf8) {
+               /* Due to a hardware problem on Lenovo Ideadpad, we need to
+                * fix the sample rate of analog I/O to 44.1kHz
+                */
+               spec->stream_analog_playback = &alc269_44k_pcm_analog_playback;
+               spec->stream_analog_capture = &alc269_44k_pcm_analog_capture;
+       } else {
+               spec->stream_analog_playback = &alc269_pcm_analog_playback;
+               spec->stream_analog_capture = &alc269_pcm_analog_capture;
+       }
        spec->stream_name_digital = "ALC269 Digital";
        spec->stream_digital_playback = &alc269_pcm_digital_playback;
        spec->stream_digital_capture = &alc269_pcm_digital_capture;