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ARM: dts: aspeed: rainier: Add power-config-full-load gpio

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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 <anoo@us.ibm.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20211005192226.213539-1-anoo@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Adriana Kobylak 2021-10-05 19:22:26 +00:00 committed by Joel Stanley
parent f2a4985058
commit 18b34bcad2
1 changed files with 13 additions and 0 deletions
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13
arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
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@ -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>;