mb/google/guybrush/dewatt: update dewatt config

copy config from guybrush reference board.

BUG=b:204151079
BRANCH=guybrush
TEST=emerge-guybrush coreboot chromeos-bootimage

Signed-off-by: Chris.Wang <chris.wang@amd.corp-partner.google.com>
Change-Id: Ide9e002390e59725dc0e45f83280db2a78270993
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59092
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>

src/mainboard/google/guybrush/variants/dewatt/overridetree.cb

@@ -4,4 +4,54 @@ chip soc/amd/cezanne
 	device domain 0 on
 
 	end # domain
+
+	register "slow_ppt_limit_mW"         = "25000"
+	register "fast_ppt_limit_mW"         = "30000"
+	register "slow_ppt_time_constant_s"  = "5"
+	register "stapm_time_constant_s"     = "275"
+	register "sustained_power_limit_mW"  = "15000"
+	register "thermctl_limit_degreeC"    = "100"
+
+	#Update values based on final stardust SDLE test report.
+	register "telemetry_vddcrvddfull_scale_current_mA" = "94648" #mA
+	register "telemetry_vddcrvddoffset" =  "785"
+	register "telemetry_vddcrsocfull_scale_current_mA" = "30314" #mA
+	register "telemetry_vddcrsocoffset" =  "560"
+
+	# I2C Config
+	#+-------------------+---------------------------+
+	#| Field             |  Value                    |
+	#+-------------------+---------------------------+
+	#| I2C0              | Trackpad                  |
+	#| I2C1              | Touchscreen               |
+	#| I2C2              | Speaker, Codec, P-SAR     |
+	#| I2C3              | H1/D2 TPM                 |
+	#+-------------------+---------------------------+
+	register "i2c[0]" = "{
+		.speed = I2C_SPEED_FAST,
+	}"
+
+	register "i2c[1]" = "{
+		.speed = I2C_SPEED_FAST,
+	}"
+
+	register "i2c[2]" = "{
+		.speed = I2C_SPEED_FAST,
+	}"
+
+	register "i2c[3]" = "{
+		.speed = I2C_SPEED_FAST,
+		.early_init = true,
+	}"
+
+	device ref i2c_0 on
+		chip drivers/i2c/generic
+			register "hid" = ""ELAN0000""
+			register "desc" = ""ELAN Touchpad""
+			register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_9)"
+			register "wake" = "GEVENT_22"
+			register "probed" = "1"
+			device i2c 15 on end
+		end
+	end # I2C0
 end	# chip soc/amd/cezanne