diff options
| author | Adriana Kobylak <anoo@us.ibm.com> | 2021-10-05 19:22:26 +0000 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2021-10-12 08:31:09 +1030 |
| commit | 18b34bcad26c01e8c446c215d3fb64aa732e9a26 (patch) | |
| tree | 89ebd6b72463c894513123dadd8cf7030b81d961 /arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | |
| parent | f2a49850581bbc41ebfea64fba463b4b5604ceb6 (diff) | |
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 <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>
Diffstat (limited to 'arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts')
| -rw-r--r-- | arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts index 341f944f4bfa..d70a91c5762d 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>; |