[PATCH linux dev-4.10 v3 4/4] ARM: dts: aspeed: Witherspoon WDT1 external signal is push-pull

Andrew Jeffery andrew at aj.id.au
Thu Jul 27 20:16:47 AEST 2017


Fix the drive and polarity of WDTRST1 with respect to the latch design
which assert the FAULT pin on the MAX31785 across a BMC reset. This
ensures the fan outputs are ramped to 100% PWM duty.

Signed-off-by: Andrew Jeffery <andrew at aj.id.au>
Cc: Matt Spinler <mspinler at linux.vnet.ibm.com>
---
 arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
index c28222c17d03..6a7ab9648984 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
@@ -488,6 +488,8 @@
 &wdt1 {
 	aspeed,reset-type = "none";
 	aspeed,external-signal;
+	aspeed,ext-push-pull;
+	aspeed,ext-active-high;
 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_wdtrst1_default>;
-- 
2.11.0



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