From b40b6ff53e6e1b6bf285f15cb59ab2fcec8dbe0b Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Mon, 25 Mar 2024 10:14:15 -0500 Subject: mb/samsung/stumpy: Set initial fan PWM to 30% Recent changes to the ITE 8772F SIO code caused the initial fan PWM to change from 0 to 50%; set it to 30% to reduce fan noise while still providing some temp control before the OS/ACPI takes over. TEST=build/boot stumpy to payload, verify fan noise is negligible. Change-Id: I287e46202ee1c112d1da63c0d8b7889958e3807e Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/c/coreboot/+/81514 Reviewed-by: Varshit Pandya Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber --- src/mainboard/samsung/stumpy/devicetree.cb | 1 + 1 file changed, 1 insertion(+) (limited to 'src') diff --git a/src/mainboard/samsung/stumpy/devicetree.cb b/src/mainboard/samsung/stumpy/devicetree.cb index 853e519263..bc24464733 100644 --- a/src/mainboard/samsung/stumpy/devicetree.cb +++ b/src/mainboard/samsung/stumpy/devicetree.cb @@ -91,6 +91,7 @@ chip northbridge/intel/sandybridge register "TMPIN3.mode" = "THERMAL_PECI" # Enable FAN3 register "FAN3.mode" = "FAN_SMART_SOFTWARE" + register "FAN3.smart.pwm_start" = "30" device pnp 2e.0 off end # FDC device pnp 2e.1 on # Serial Port 1 -- cgit v1.2.3