[alsa-devel] [PATCH 1/2] ASoC: Intel: bytcr_rt5640: Add quirk for the Prowise PT301 tablet

Hans de Goede hdegoede at redhat.com
Mon Dec 10 15:54:13 CET 2018


Hi,

On 10-12-18 15:35, Pierre-Louis Bossart wrote:
> 
> On 12/8/18 7:01 AM, Hans de Goede wrote:
>> Add a quirk for the Prowise PT301 tablet, this BYTCR tablet has no CHAN
>> package in its ACPI tables and uses SSP0-AIF1 rather then SSP0-AIF2 which
>> is the default for BYTCR devices.
>>
>> Also it uses IN1 for its MIC and JD2 for jack-detect, rather then the
>> default IN3 and JD1.
> 
> Looks like someone was trying hard to avoid using defaults...Oh well.

FWIW:

Well in practice more BYTCR devices seem to use SSP0-AIF1 rather then
SSP0-AIF2, but I don't want to change the driver defaults at this point
and most BYTCR devices do have a CHAN package in their ACPI tables.

As for using IN1+JD2 rather then IN3+JD1 (which seem to be the most
if not only used combos) in my experience there is pretty much a 50/50
split in which devices uses which combo.

I've a table with the correct settings for most of the device which I have
here: https://github.com/jwrdegoede/sunxi-fedora-scripts/blob/master/x86-codec-info

> Both patch 1 and 2
> 
> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>

Thanks.

Regards,

Hans


>> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
>> ---
>>   sound/soc/intel/boards/bytcr_rt5640.c | 14 ++++++++++++++
>>   1 file changed, 14 insertions(+)
>>
>> diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
>> index 8587bd3d1cc1..6df902e3a380 100644
>> --- a/sound/soc/intel/boards/bytcr_rt5640.c
>> +++ b/sound/soc/intel/boards/bytcr_rt5640.c
>> @@ -674,6 +674,20 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = {
>>                       BYT_RT5640_SSP0_AIF2 |
>>                       BYT_RT5640_MCLK_EN),
>>       },
>> +    {
>> +        /* Prowise PT301 */
>> +        .matches = {
>> +            DMI_MATCH(DMI_SYS_VENDOR, "Prowise"),
>> +            DMI_MATCH(DMI_PRODUCT_NAME, "PT301"),
>> +        },
>> +        .driver_data = (void *)(BYT_RT5640_IN1_MAP |
>> +                    BYT_RT5640_JD_SRC_JD2_IN4N |
>> +                    BYT_RT5640_OVCD_TH_2000UA |
>> +                    BYT_RT5640_OVCD_SF_0P75 |
>> +                    BYT_RT5640_DIFF_MIC |
>> +                    BYT_RT5640_SSP0_AIF1 |
>> +                    BYT_RT5640_MCLK_EN),
>> +    },
>>       {
>>           .matches = {
>>               DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),


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