[XS] Change in coreboot[main]: mb/google/rex/var/karis: Add FAN field in fw_config

[Subrata Banik (Code Review)]

Subrata Banik has submitted this change. ( https://review.coreboot.org/c/coreboot/+/78216?usp=email )

Change subject: mb/google/rex/var/karis: Add FAN field in fw_config
......................................................................

mb/google/rex/var/karis: Add FAN field in fw_config

Update default fan settings(FAN_SETTING_1) in FAN field.

Bit 6-7, FAN, 0 --> FAN_SETTING_1

BUG=b:290689824, b:294155897
TEST=Dump ssdt table and check fan settings is existed

Change-Id: Id69ec67202b5d769cd3a9a68344a6d8913ebd78b
Signed-off-by: Tyler Wang 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78216
Tested-by: build bot (Jenkins) 
Reviewed-by: Subrata Banik 
Reviewed-by: Sumeet R Pawnikar 
Reviewed-by: Eric Lai 
---
M src/mainboard/google/rex/variants/karis/overridetree.cb
1 file changed, 6 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Sumeet R Pawnikar: Looks good to me, approved
  Eric Lai: Looks good to me, approved
  Subrata Banik: Looks good to me, approved

diff --git a/src/mainboard/google/rex/variants/karis/overridetree.cb b/src/mainboard/google/rex/variants/karis/overridetree.cb
index 24dec6f..545a7b3 100644
--- a/src/mainboard/google/rex/variants/karis/overridetree.cb
+++ b/src/mainboard/google/rex/variants/karis/overridetree.cb
@@ -6,6 +6,9 @@
    field AUDIO 3 5
    	option ALC5650_NO_AMP_I2S	0
    end
+	field FAN 6 7
+		option FAN_SETTING_1		0
+	end
    field MIPI_CAM 8 9
    	option UF_CAM_HI556		0
    end
@@ -237,7 +240,9 @@
    			register "options.fan.fine_grained_control" = "1"
    			register "options.fan.step_size" = "2"

-				device generic 0 alias dptf_policy on end
+				device generic 0 alias dptf_policy on
+					probe FAN FAN_SETTING_1
+				end
    		end
    	end
    	device ref pcie_rp10 on