Change in coreboot[master]: drivers/intel/mipi_camera: Add guard to protect camera resources

[Sugnan Prabhu S (Code Review)]

Hello Varshit B Pandya, build bot (Jenkins), Matt Delco, Furquan Shaikh, Tim Wawrzynczak, Rizwan Qureshi, Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/43003

to look at the new patch set (#10).

Change subject: drivers/intel/mipi_camera: Add guard to protect camera resources
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drivers/intel/mipi_camera: Add guard to protect camera resources

This change updates the mipi_camera driver to handle shared power
resource between multiple cameras. This is achieved by adding a guard
variable and methods to manipulate the guard variable before calling
the actual method which enables or disables the resource. This protects
the shared resources from being enabled or disabled multiple times
while the resources are being used by multiple cameras.

Change-Id: I1468459d5bbb2fb07bef4e0590c96dd4dbab0d9c
Signed-off-by: Sugnan Prabhu S 
---
M src/drivers/intel/mipi_camera/camera.c
M src/drivers/intel/mipi_camera/chip.h
2 files changed, 353 insertions(+), 40 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/43003/10