TAS2552: TAS2552 Linux Driver issue

Hi Fu-Ju,

Today is a holiday for TI, so apologies for the delay. Expect a response this coming Monday.

Brian

Are you using the TAS2552 drivers from www.ti.com/.../TAS2552SW-LINUX

We already checked it. That’s the driver which’s already included in Linux kernel tree. But it’s for the use of RISC CPUs which has device tree to support it.

I am going to check with our China software team to see if there is anything else we can provide.

Hi Fu-ju

Have you register the sound card? 

• share your dts file
• run following coomands

• cat /proc/asound/pcm

  cat /proc/asound/cards

  cat /sys/kernel/debug/asoc/components (for kernel 4.19 or above)

  cat /sys/kernel/debug/asoc/codecs (for kernel 4.14 or below)

  ls /dev/snd

One more thing, tell me your kernel version.

Hi, Shenghao:

We use intel Apollo Lkae Platform, x86 system, no dts file.

For other questions, please find in attached picture.  Thank you.

In my experience, such as TI BBB or FSL paltform, the method for sound card register is through dts, See the attached pic,

I an curious how the sound card register into this Intel platform without dts.

Kindly check whether tas2552_componet_probe is called, during insmod.

May as well consult Platform vendor on how register sound card on Intel platform.

Do you have any example to put the TAS2552 or similar IC to BIOS?  BIOS code example?   Do you know if any projects using this IC in a x86 platform before?

Thank you,

FuJu Lee

Do you mean ACPI setting?

Yes, the ACPI Table.

My suggestion is use ACPI tools for your current platform.

We use ACPI tools, dump from BIOS, and update DSDT.DSL.

In windows console as administrator, run below commands:

bcdedit /set TESTSIGNING ON

acpidump > tab.bin

acpixtract -a tab.bin

iasl dsdt.dat

Below is what we have added into DSDT.DSL in windows platform for TAS2563:

_SB.I2CD should be changed as current connection.

INT8866 should be changed as new hardware ID.

0x004C, 0x004D is I2C slave address of TAS2563 devices.

GpioInt may be not needed if no interrupt was connected with devices.

    Scope (_SB.I2CD)

    {

        Device (TAS)

        {

            Name (_HID, "INT8866")  // _HID: Hardware ID

            Name (_UID, Zero)  // _UID: Unique ID

            Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings

            {

                Name (RBUF, ResourceTemplate ()

                {

                    I2cSerialBusV2 (0x004C, ControllerInitiated, 0x00061A80,

                        AddressingMode7Bit, "\\_SB.I2CD",

                        0x00, ResourceConsumer, , Exclusive,

                        )

                    I2cSerialBusV2 (0x004D, ControllerInitiated, 0x00061A80,

                        AddressingMode7Bit, "\\_SB.I2CD",

                        0x00, ResourceConsumer, , Exclusive,

                        )

                    GpioInt (Edge, ActiveLow, SharedAndWake, PullNone, 0x0000,

                        "\\_SB.GPIO", 0x00, ResourceConsumer, ,

                        )

                        {   // Pin list

                            0x0020

                        }

                })

                Return (RBUF) /* \_SB_.I2CD.TAS_._CRS.RBUF */

            }

            Method (_STA, 0, NotSerialized)  // _STA: Status

            {

                Return (0x0F)

            }

        }

    }

after DSDT.DSL was updated, compile and apply by below command:

iasl dsdt.dsl

asl /loadtable -v dsdt.aml

It will take effective after system restart.