[coreboot-gerrit] Change in coreboot[master]: driver/intel/mipi_camera: Add support for _DSC field

[Varshit B Pandya (Code Review)]

Attention is currently required from: Varshit B Pandya, Maulik V Vaghela, Subrata Banik, Patrick Rudolph.
Hello build bot (Jenkins), Maulik V Vaghela, Tim Wawrzynczak, Subrata Banik, Patrick Rudolph,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/58767

to look at the new patch set (#7).

Change subject: driver/intel/mipi_camera: Add support for _DSC field
......................................................................

driver/intel/mipi_camera: Add support for _DSC field

The _DSC (Device State for Configuration) object evaluates to an integer
may be used to tell Linux the highest allowed D state for a device
during probe. The support for _DSC requires support from the kernel
bus type if the bus driver normally sets the device in D0 state for
probe.

The D states and thus also the allowed values for _DSC are listed below.
Number	State	Description
0	D0	Device fully powered on
1	D1
2	D2
3	D3hot
4	D3cold	Off

More details can be found here https://lkml.org/lkml/2021/10/25/397

BUG=none
BRANCH=none
TEST=Add corresponding field in brya, boot and dump SSDT to check if
_DSC field is as per expectation.

Name (_ADR, Zero)  // _ADR: Address
            Name (_HID, "OVTI8856")  // _HID: Hardware ID
            Name (_UID, Zero)  // _UID: Unique ID
            Name (_DDN, "Ov 8856 Camera")  // _DDN: DOS Device Name
            Method (_STA, 0, NotSerialized)  // _STA: Status
            {
                Return (0x0F)
            }

Method (_DSC, 0, NotSerialized)
            {
                Return (0x04)
            }

Signed-off-by: Varshit B Pandya 
Change-Id: I5471f144918413a2982f86beaf3dbf7e4e66cc9b
---
M src/drivers/intel/mipi_camera/camera.c
M src/drivers/intel/mipi_camera/chip.h
2 files changed, 9 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/58767/7