[RFC] ACPI table HID/CID allocation

[Udit Kumar <udit.kumar@nxp.com>]

Hi,

I am enabling ACPI on NXP platform , In order to do minimal changes in Linux driver for device-driver binding.

I want to use PRP0001 device as CID and HID as actual (NXP allocated HID).

So that Linux can bind with PRP0001 and  compatible field, where as other OS (Window etc) can rely on HID.

Below is sample, ACPI table for SPI controller and its slave device.



Hope this approach is ok ?



Thanks

Udit





Scope(_SB)

{

        Device(SPI0) {

                Name(_HID, "NXP0001")

                Name(_CID, "PRP0001")

                Name(_CRS, ResourceTemplate() {

                        }) // end of _CRS for i2c0 device

                Name (_DSD, Package () {

                        ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),

                                Package () {

                                Package() {"compatible", " fsl,ls2085a-dspi"},

                        }

                }) // end of DSD SPI device

                Device (EEP0) {

                        Name(_HID, " NXP0002")  //HID can be discussed with flash vendor

                        Name(_CID, "PRP0001") // m25p80 flash

                        Name(_CRS, ResourceTemplate()

                        {

                               SPISerialBus(....)

                        }) // ResourceTemplate()

                        Name (_DSD, Package () {

                                ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),

                                        Package () {

                                        Package() {"compatible", "st,m25p80"},

                        }

                } // End of e2prom device

        } // end of SPI device

}