linux-kernel - Re: [PATCH v5 1/2] dt-bindings: mmc: Document Aspeed SD controller

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Message-Id: <6c94aada-9c4a-4f55-9a43-349282ad12af@www.fastmail.com>
Date:   Thu, 15 Aug 2019 15:08:24 +0930
From:   "Andrew Jeffery" <andrew@...id.au>
To:     "Joel Stanley" <joel@....id.au>
Cc:     linux-mmc <linux-mmc@...r.kernel.org>,
        "Ulf Hansson" <ulf.hansson@...aro.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        "Mark Rutland" <mark.rutland@....com>,
        "Adrian Hunter" <adrian.hunter@...el.com>,
        devicetree <devicetree@...r.kernel.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>,
        "Ryan Chen" <ryanchen.aspeed@...il.com>
Subject: Re: [PATCH v5 1/2] dt-bindings: mmc: Document Aspeed SD controller



On Thu, 15 Aug 2019, at 15:06, Joel Stanley wrote:
> On Wed, 7 Aug 2019 at 00:38, Andrew Jeffery <andrew@...id.au> wrote:
> >
> > The ASPEED SD/SDIO/MMC controller exposes two slots implementing the
> > SDIO Host Specification v2.00, with 1 or 4 bit data buses, or an 8 bit
> > data bus if only a single slot is enabled.
> >
> > Signed-off-by: Andrew Jeffery <andrew@...id.au>
> 
> Reviewed-by: Joel Stanley <joel@....id.au>
> 
> Two minor comments below.
> 
> > +++ b/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml
> > @@ -0,0 +1,105 @@
> > +# SPDX-License-Identifier: GPL-2.0-or-later
> 
> No "Copyright IBM" ?

I'm going rogue.

That reminds me I should chase up where we got to with the binding
licensing.

> 
> > +%YAML 1.2
> > +---
> 
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/clock/aspeed-clock.h>
> > +    sdc@...40000 {
> > +            compatible = "aspeed,ast2500-sd-controller";
> > +            reg = <0x1e740000 0x100>;
> > +            #address-cells = <1>;
> > +            #size-cells = <1>;
> > +            ranges = <0 0x1e740000 0x10000>;
> 
> According to the datasheet this could be 0x20000. It does not matter
> though, as there's nothing in it past 0x300.

Good catch.

Andrew