linux-kernel - Re: [PATCH v7 1/5] ARM: dts: aspeed: Drop reg-io-width from LPC nodes

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Date:   Thu, 21 Oct 2021 06:54:26 +0000
From:   Joel Stanley <joel@....id.au>
To:     ChiaWei Wang <chiawei_wang@...eedtech.com>
Cc:     Andrew Jeffery <andrew@...id.au>, Rob Herring <robh+dt@...nel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-aspeed <linux-aspeed@...ts.ozlabs.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
        Oskar Senft <osk@...gle.com>
Subject: Re: [PATCH v7 1/5] ARM: dts: aspeed: Drop reg-io-width from LPC nodes

On Thu, 21 Oct 2021 at 06:48, Joel Stanley <joel@....id.au> wrote:
>
> On Thu, 21 Oct 2021 at 06:37, ChiaWei Wang <chiawei_wang@...eedtech.com> wrote:
> > However, like Rob mentioned, when doing 'make dtbs_check', there is a warning:
> >
> > /builds/robherring/linux-dt-review/arch/arm/boot/dts/aspeed-ast2500-evb.dt.yaml:
> > lpc@...89000: 'ibt@...', 'kcs@...', 'kcs@24', 'kcs@28', 'kcs@2c', 'lhc@a0', 'reg-io-width' do not match any of the regexes:
> > '^lpc-ctrl@[0-9a-f]+$', '^lpc-snoop@[0-9a-f]+$', '^reset-controller@[0-9a-f]+$', 'pinctrl-[0-9]+'
> > From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml
> >
> > As part of this series has been applied, maybe we can fix this later?

FWIW, this fixes the warnings for me;

--- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml
+++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml
@@ -56,6 +56,9 @@ properties:

   ranges: true

+  reg-io-width:
+    const: 4
+
 patternProperties:
   "^lpc-ctrl@[0-9a-f]+$":
     type: object
@@ -144,6 +147,9 @@ patternProperties:
         $ref: /schemas/types.yaml#/definitions/uint32-array
         description: The LPC I/O ports to snoop

+      clocks:
+        maxItems: 1
+
     required:
       - compatible
       - interrupts

make ARCH=arm CROSS_COMPILE="arm-linux-gnueabi-" dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml

If you are able to test this and send a patch that would be appreciated.

Cheers,

Joel