[coreboot-gerrit] Change in coreboot[master]: mb/google/dedede: Configure Acoustic noise mitigation UPDs

[Maulik V Vaghela (Code Review)]

Maulik V Vaghela has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/48231 )

Change subject: mb/google/dedede: Configure Acoustic noise mitigation UPDs
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mb/google/dedede: Configure Acoustic noise mitigation UPDs

Enable Acoustic noise mitigation for drawcia and set slew rate to 1/4
which is calibrated value for board. Other values like PreWake, Rampup
and RampDown are 0 bydefault.

BUG=b:162192346
BRANCH=dedede
TEST=Correct value is passed to UPD and Acoustic noise test passes.

Change-Id: Iadcf332d59dac2ba191b82742a18a1ab326940d1
Signed-off-by: Maulik V Vaghela 
---
M src/mainboard/google/dedede/variants/drawcia/overridetree.cb
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/48231/1

diff --git a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
index dcb46cc..3e88170 100644
--- a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb
@@ -66,6 +66,10 @@
    register "ImonOffset" = "1400"  # Imon Offset = 1.4
    register "ImonSlope" = "100"    # Imon Slope = 1.0

+	# Enable Acoustic noise mitigation and set slew rate to 1/4
+	register "AcousticNoiseMitigation" = "1"
+	register "SlowSlewRate" = "1"
+
    device domain 0 on
    	device pci 05.0 on # IPU - MIPI Camera
    		chip drivers/intel/mipi_camera