Re: [PATCH v20 1/4] usb: Add support for Intel LJCA device

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On 09.10.23 08:33, Wentong Wu wrote:
Implements the USB part of Intel USB-I2C/GPIO/SPI adapter device
named "La Jolla Cove Adapter" (LJCA).

The communication between the various LJCA module drivers and the
hardware will be muxed/demuxed by this driver. Three modules (
I2C, GPIO, and SPI) are supported currently.

Each sub-module of LJCA device is identified by type field within
the LJCA message header.

The sub-modules of LJCA can use ljca_transfer() to issue a transfer
between host and hardware. And ljca_register_event_cb is exported
to LJCA sub-module drivers for hardware event subscription.

The minimum code in ASL that covers this board is
Scope (\_SB.PCI0.DWC3.RHUB.HS01)
     {
         Device (GPIO)
         {
             Name (_ADR, Zero)
             Name (_STA, 0x0F)
         }

         Device (I2C)
         {
             Name (_ADR, One)
             Name (_STA, 0x0F)
         }

         Device (SPI)
         {
             Name (_ADR, 0x02)
             Name (_STA, 0x0F)
         }
     }

Signed-off-by: Wentong Wu <wentong.wu@xxxxxxxxx>
Reviewed-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
Tested-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Reviewed-by: Oliver Neukum <oneukum@xxxxxxxx>



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