RE: [PATCH] i2c: designware: Add ACPI HID for DWAPB I2C controller on Fujitsu MONAKA

From: Yoshihiro Furudera (Fujitsu)
Date: Mon Oct 21 2024 - 03:23:39 EST


Hi, Andy Shevchenko
Thanks for you review/comments.

> On Fri, Oct 18, 2024 at 01:58:26AM +0000, Yoshihiro Furudera wrote:
> > This patch enables DWAPB I2C controller support on Fujitsu MONAKA.
>
> s/This patch enables/Enable/

Understood.

>
> Also please give more details:
> 1) is this ID already present in the wild
> (in the products that one may just go and buy)?
> if so, mention the example of the product.

Not available at this time.
It is planned to be implemented in the MONAKA server
scheduled for shipment in 2027.

>
> 2) provide an excerpt from DSDT for the Device object that uses this _HID.

The DSDT information obtained when verified using
an in-house simulator is presented below.

DefinitionBlock ("", "SSDT", 2, "FUJ ", "NGDC ", 0x00000001)
{
Scope (\_SB)
{
Device (SMB0)
{
Name (_HID, "FUJI200B") // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
Method (_STA, 0, NotSerialized) // _STA: Status
{
Return (0x0F)
}

Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
{
Memory32Fixed (ReadWrite,
0x2A4B0000, // Address Base
0x00010000, // Address Length
)
Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, ,, )
{
0x00000159,
}
})
Device (SSIF)
{
Name (_HID, EisaId ("IPI0001")) // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
Name (_STR, Unicode ("IPMI_SSIF")) // _STR: Description String
Method (_IFT, 0, NotSerialized) // _IFT: IPMI Interface Type
{
Return (0x04)
}

Method (_ADR, 0, NotSerialized) // _ADR: Address
{
Return (0x20)
}

Method (_SRV, 0, NotSerialized) // _SRV: IPMI Spec Revision
{
Return (0x0200)
}
}
}
}
}

>
> Otherwise the vendor ID is legit [1] and code wise patch is okay.
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
>
> [1]: https://uefi.org/ACPI_ID_List?acpi_search=fuji
>
> --
> With Best Regards,
> Andy Shevchenko
>

Best Regards,
Yoshihiro Furudera