From 18b34bcad26c01e8c446c215d3fb64aa732e9a26 Mon Sep 17 00:00:00 2001 From: Adriana Kobylak Date: Tue, 5 Oct 2021 19:22:26 +0000 Subject: [PATCH] ARM: dts: aspeed: rainier: Add power-config-full-load gpio Add the power-config-full-load described in: https://github.com/openbmc/docs/blob/master/designs/device-tree-gpio-naming.md#power-config-full-load The power-config-full-load gpio is designed to be used to specify how many power supplies the system should have, in rainier it is 2 or 4. If enough power supplies fail so that the system no longer has redundancy (no longer n+1), the hardware will signal to the Onboard Chip Controller that the system may be oversubscribed, and performance may need to be reduced so the system can maintain it's powered on state. Signed-off-by: Adriana Kobylak Reviewed-by: Eddie James Link: https://lore.kernel.org/r/20211005192226.213539-1-anoo@linux.ibm.com Signed-off-by: Joel Stanley --- arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts index 341f944f4bfa1..d70a91c5762d4 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts @@ -2214,6 +2214,19 @@ reg = <0x51>; }; + pca_pres3: pca9552@60 { + compatible = "nxp,pca9552"; + reg = <0x60>; + #address-cells = <1>; + #size-cells = <0>; + gpio-controller; + #gpio-cells = <2>; + + gpio-line-names = + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "power-config-full-load", ""; + }; + pca_pres2: pca9552@61 { compatible = "nxp,pca9552"; reg = <0x61>; -- 2.30.2