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Mon, 10 May 2021 01:44:23 -0400 (EDT) From: Andrew Jeffery To: openipmi-developer@lists.sourceforge.net, openbmc@lists.ozlabs.org, minyard@acm.org Cc: devicetree@vger.kernel.org, tmaimon77@gmail.com, linux-aspeed@lists.ozlabs.org, avifishman70@gmail.com, venture@google.com, linux-kernel@vger.kernel.org, tali.perry1@gmail.com, robh+dt@kernel.org, chiawei_wang@aspeedtech.com, linux-arm-kernel@lists.infradead.org, benjaminfair@google.com, arnd@arndb.de, zweiss@equinix.com, Rob Herring Subject: [PATCH v3 13/16] dt-bindings: ipmi: Add optional SerIRQ property to ASPEED KCS devices Date: Mon, 10 May 2021 15:12:10 +0930 Message-Id: <20210510054213.1610760-14-andrew@aj.id.au> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210510054213.1610760-1-andrew@aj.id.au> References: <20210510054213.1610760-1-andrew@aj.id.au> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210509_224430_340056_0EC83978 X-CRM114-Status: GOOD ( 11.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- .../bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml index 697ca575454f..4ff6fabfcb30 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>; }; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel