linux-kernel - Re: [PATCH v2 17/21] dt-bindings: ipmi: Convert ASPEED KCS binding to schema

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Date:   Fri, 9 Apr 2021 08:46:38 +0000
From:   Zev Weiss <zweiss@...inix.com>
To:     Andrew Jeffery <andrew@...id.au>, "g@...ktop" <g@...ktop>
CC:     "openipmi-developer@...ts.sourceforge.net" 
        <openipmi-developer@...ts.sourceforge.net>,
        "openbmc@...ts.ozlabs.org" <openbmc@...ts.ozlabs.org>,
        Corey Minyard <minyard@....org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Ryan Chen <ryan_chen@...eedtech.com>,
        Tomer Maimon <tmaimon77@...il.com>,
        "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
        Avi Fishman <avifishman70@...il.com>,
        Patrick Venture <venture@...gle.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Tali Perry <tali.perry1@...il.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        "Chia-Wei, Wang" <chiawei_wang@...eedtech.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Benjamin Fair <benjaminfair@...gle.com>
Subject: Re: [PATCH v2 17/21] dt-bindings: ipmi: Convert ASPEED KCS binding to
 schema

On Fri, Apr 09, 2021 at 12:44:04AM CDT, Zev Weiss wrote:
>On Fri, Apr 09, 2021 at 12:33:10AM CDT, Andrew Jeffery wrote:
>>
>>
>>On Fri, 9 Apr 2021, at 14:45, Zev Weiss wrote:
>>>On Fri, Mar 19, 2021 at 01:27:48AM CDT, Andrew Jeffery wrote:
>>>>Given the deprecated binding, improve the ability to detect issues in
>>>>the platform devicetrees. Further, a subsequent patch will introduce a
>>>>new interrupts property for specifying SerIRQ behaviour, so convert
>>>>before we do any further additions.
>>>>
>>>>Signed-off-by: Andrew Jeffery <andrew@...id.au>
>>>>---
>>>> .../bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml | 92 +++++++++++++++++++
>>>> .../bindings/ipmi/aspeed-kcs-bmc.txt          | 33 -------
>>>> 2 files changed, 92 insertions(+), 33 deletions(-)
>>>> create mode 100644 Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml
>>>> delete mode 100644 Documentation/devicetree/bindings/ipmi/aspeed-kcs-bmc.txt
>>>>
>>>>diff --git a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml
>>>>new file mode 100644
>>>>index 000000000000..697ca575454f
>>>>--- /dev/null
>>>>+++ b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml
>>>>@@ -0,0 +1,92 @@
>>>>+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>>>+%YAML 1.2
>>>>+---
>>>>+$id: http://devicetree.org/schemas/ipmi/aspeed,ast2400-kcs-bmc.yaml
>>>>+$schema: http://devicetree.org/meta-schemas/core.yaml
>>>>+
>>>>+title: ASPEED BMC KCS Devices
>>>>+
>>>>+maintainers:
>>>>+  - Andrew Jeffery <andrew@...id.au>
>>>>+
>>>>+description: |
>>>>+  The Aspeed BMC SoCs typically use the Keyboard-Controller-Style (KCS)
>>>>+  interfaces on the LPC bus for in-band IPMI communication with their host.
>>>>+
>>>>+properties:
>>>>+  compatible:
>>>>+    oneOf:
>>>>+      - description: Channel ID derived from reg
>>>>+        items:
>>>>+          enum:
>>>>+            - aspeed,ast2400-kcs-bmc-v2
>>>>+            - aspeed,ast2500-kcs-bmc-v2
>>>>+            - aspeed,ast2600-kcs-bmc
>>>
>>>Should this have a "-v2" suffix?
>>
>>Well, that was kind of a matter of perspective. The 2600 compatible was
>>added after we'd done the v2 of the binding for the 2400 and 2500 so it
>>never needed correcting. But it is a case of "don't use the deprecated
>>properties with the 2600 compatible".
>>
>>I don't think a change is necessary?
>>
>
>It just looked inconsistent with the corresponding string in the
>ast_kcs_bmc_match[] table; perhaps that should be changed instead then?
>

...except I realize now I only saw the 2600 v2 string in the match table
because I put it there myself in the process of resolving a conflict
when applying your series to the openbmc dev-5.10 branch for testing
purposes.  So nevermind on this.

Reviewed-by: Zev Weiss <zweiss@...inix.com>