On 5/8/18 10:36 AM, Hans de Goede wrote:
Many X86 devices using a BYT SoC + RT5640 codec are cheap devices with
generic DMI strings, causing snd_soc_set_dmi_name() to fail to set a
long_name, making it impossible for userspace to have a correct UCM
profile which only uses inputs / outputs which are actually hooked up
on the device.
Our quirks already specify which input the internal mic is connected to
and if a single (mono) speaker is used or if the device has stereo
speakers.
This commit sets a long_name based on the quirks so that userspace can
have UCM profiles doing the right thing based on the long_name.
Isn't this going to be complicated to manage for UCM? Just with this
patch alone, you'd need 8 UCM files to cover all the combinations. 16 if
you add the 'sof-' prefix.
seems like UCM should become more 'dynamic' and get quirk information
somehow (sysfs?) to enable/disable endpoints rather than rely on name
encoding to select the right profile?
Note that if we ever encounter the need for a special UCM profile for
some device we can add a quirk to set a specific long_name for the
device,
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
sound/soc/intel/boards/bytcr_rt5640.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index cfc520200214..9a1204dcdbc6 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -929,6 +929,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = {
static char byt_rt5640_codec_name[SND_ACPI_I2C_ID_LEN];
static char byt_rt5640_codec_aif_name[12]; /* = "rt5640-aif[1|2]" */
static char byt_rt5640_cpu_dai_name[10]; /* = "ssp[0|2]-port" */
+static char byt_rt5640_long_name[40]; /* = "bytcr-rt5640-*-spk-*-mic" */
static int byt_rt5640_suspend(struct snd_soc_card *card)
{
@@ -1000,6 +1001,7 @@ struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */
static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
{
+ const char * const map_name[] = { "dmic1", "dmic2", "in1", "in3" };
const struct dmi_system_id *dmi_id;
struct byt_rt5640_private *priv;
struct snd_soc_acpi_mach *mach;
@@ -1163,6 +1165,13 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
}
}
+ snprintf(byt_rt5640_long_name, sizeof(byt_rt5640_long_name),
+ "bytcr-rt5640-%s-spk-%s-mic",
+ (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) ?
+ "mono" : "stereo",
+ map_name[BYT_RT5640_MAP(byt_rt5640_quirk)]);
+ byt_rt5640_card.long_name = byt_rt5640_long_name;
+
ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
if (ret_val) {
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