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Date: Fri, 16 Oct 2020 13:49:21 -0500
From: Rob Herring <robh@kernel.org>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Subject: Re: [PATCH 06/20] dt-bindings: usb: Convert xHCI bindings to DT schema
Message-ID: <20201016184921.GA1732241@bogus>
References: <20201014101402.18271-1-Sergey.Semin@baikalelectronics.ru>
 <20201014101402.18271-7-Sergey.Semin@baikalelectronics.ru>
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Cc: Neil Armstrong <narmstrong@baylibre.com>, linux-kernel@vger.kernel.org,
 Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>,
 Kevin Hilman <khilman@baylibre.com>, Andy Gross <agross@kernel.org>,
 linux-snps-arc@lists.infradead.org, devicetree@vger.kernel.org,
 Mathias Nyman <mathias.nyman@intel.com>,
 Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>,
 Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
 Rob Herring <robh+dt@kernel.org>, Bjorn Andersson <bjorn.andersson@linaro.org>,
 linux-arm-kernel@lists.infradead.org, Roger Quadros <rogerq@ti.com>,
 Felipe Balbi <balbi@kernel.org>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
 linux-usb@vger.kernel.org, linux-mips@vger.kernel.org,
 Serge Semin <fancer.lancer@gmail.com>, Manu Gautam <mgautam@codeaurora.org>,
 linuxppc-dev@lists.ozlabs.org
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Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

On Wed, 14 Oct 2020 13:13:48 +0300, Serge Semin wrote:
> Currently the DT bindings of Generic xHCI Controllers are described by means
> of the legacy text file. Since such format is deprecated in favor of the
> DT schema, let's convert the Generic xHCI Controllers bindings file to the
> corresponding yaml files. There will be two of them: a DT schema for the
> xHCI controllers on a generic platform and a DT schema validating a generic
> xHCI controllers properties. The later will be used to validate the xHCI
> controllers, which aside from some vendor-specific features support the
> basic xHCI functionality.
> 
> An xHCI-compatible DT node shall support the standard USB HCD properties
> and custom ones like: usb2-lpm-disable, usb3-lpm-capable,
> quirk-broken-port-ped and imod-interval-ns. In addition if a generic xHCI
> controller is being validated against the DT schema it is also supposed to
> be equipped with mandatory compatible string, single registers range,
> single interrupts source, and is supposed to optionally contain up to two
> reference clocks for the controller core and CSRs.
> 
> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
> 
> ---
> 
> Changelog v2:
> - Add explicit "additionalProperties: true" to the usb-xhci.yaml schema,
>   since additionalProperties/unevaluatedProperties are going to be mandary
>   for each binding.
> ---
>  .../devicetree/bindings/usb/generic-xhci.yaml | 63 +++++++++++++++++++
>  .../devicetree/bindings/usb/usb-xhci.txt      | 41 ------------
>  .../devicetree/bindings/usb/usb-xhci.yaml     | 42 +++++++++++++
>  3 files changed, 105 insertions(+), 41 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/usb/generic-xhci.yaml
>  delete mode 100644 Documentation/devicetree/bindings/usb/usb-xhci.txt
>  create mode 100644 Documentation/devicetree/bindings/usb/usb-xhci.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>