The Lenovo Yoga Tab 3 Pro YT3-X90 x86 tablet, which ships with Android with a custom kernel as factory OS, does not list the used WM5102 codec inside its DSDT.
So acpi_dev_get_first_match_dev() is going to fail on this board. Fallback to using "spi-$(mach->id)" as codec device name in this case to allow bytcr_wm5102 to work on these tablets.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- sound/soc/intel/boards/bytcr_wm5102.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c index 5c9e06ed1a53..cf77a12b6a10 100644 --- a/sound/soc/intel/boards/bytcr_wm5102.c +++ b/sound/soc/intel/boards/bytcr_wm5102.c @@ -413,14 +413,15 @@ static int snd_byt_wm5102_mc_probe(struct platform_device *pdev) */ mach = dev->platform_data; adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1); - if (!adev) { - dev_err(dev, "Error cannot find acpi-dev for codec\n"); - return -ENOENT; + if (adev) { + snprintf(codec_name, sizeof(codec_name), "spi-%s", acpi_dev_name(adev)); + acpi_dev_put(adev); + } else { + /* Special case for when the codec is missing from the DSTD */ + strscpy(codec_name, "spi1.0", sizeof(codec_name)); } - snprintf(codec_name, sizeof(codec_name), "spi-%s", acpi_dev_name(adev));
codec_dev = bus_find_device_by_name(&spi_bus_type, NULL, codec_name); - acpi_dev_put(adev); if (!codec_dev) return -EPROBE_DEFER;