From: Andrew Jeffery Date: Tue, 8 Jun 2021 10:47:54 +0000 (+0930) Subject: dt-bindings: ipmi: Add optional SerIRQ property to ASPEED KCS devices X-Git-Tag: v5.14-rc1~134^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a7fd43d95054fe03cac3878538dcf12caa854889;p=thirdparty%2Fkernel%2Flinux.git dt-bindings: ipmi: Add optional SerIRQ property to ASPEED KCS devices Allocating IO and IRQ resources to LPC devices is in-theory an operation for the host, however ASPEED don't appear to expose this capability outside the BMC (e.g. SuperIO). Instead, we are left with BMC-internal registers for managing these resources, so introduce a devicetree property for KCS devices to describe SerIRQ properties. Signed-off-by: Andrew Jeffery Reviewed-by: Rob Herring Message-Id: <20210608104757.582199-14-andrew@aj.id.au> Signed-off-by: Corey Minyard --- diff --git a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml index 697ca575454f7..4ff6fabfcb309 100644 --- a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml +++ b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml @@ -49,6 +49,18 @@ properties: channels the status address is derived from the data address, but the status address may be optionally provided. + aspeed,lpc-interrupts: + $ref: "/schemas/types.yaml#/definitions/uint32-array" + minItems: 2 + maxItems: 2 + description: | + A 2-cell property expressing the LPC SerIRQ number and the interrupt + level/sense encoding (specified in the standard fashion). + + Note that the generated interrupt is issued from the BMC to the host, and + thus the target interrupt controller is not captured by the BMC's + devicetree. + kcs_chan: deprecated: true $ref: '/schemas/types.yaml#/definitions/uint32' @@ -84,9 +96,11 @@ allOf: examples: - | + #include kcs3: kcs@24 { compatible = "aspeed,ast2600-kcs-bmc"; reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>; aspeed,lpc-io-reg = <0xca2>; + aspeed,lpc-interrupts = <11 IRQ_TYPE_LEVEL_LOW>; interrupts = <8>; };