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Date:   Sat, 28 Jan 2023 17:22:00 +0800
From:   Li Chen <me@...ux.beauty>
To:     "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org>
Cc:     "li chen" <lchen@...arella.com>,
        "greg kroah-hartman" <gregkh@...uxfoundation.org>,
        "rob herring" <robh+dt@...nel.org>,
        "krzysztof kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        "moderated list:arm/ambarella soc support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:serial drivers" <linux-serial@...r.kernel.org>,
        "open list:open firmware and flattened device tree bindings" 
        <devicetree@...r.kernel.org>,
        "open list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 09/15] dt-bindings: serial: add support for Ambarella

Hi Krzysztof,

Sorry for my late reply.

 ---- On Wed, 25 Jan 2023 17:56:15 +0800  Krzysztof Kozlowski  wrote --- 
 > On 25/01/2023 10:54, Li Chen wrote:
 > > 
 > > Hi Krzysztof Kozlowski,
 > > 
 > > Sorry for my late reply.
 > > 
 > > On Mon, 23 Jan 2023 16:11:52 +0800,
 > > Krzysztof Kozlowski wrote:
 > >>
 > >> On 23/01/2023 08:32, Li Chen wrote:
 > >>> Add compatible for Ambarella.
 > >>>
 > >>> Signed-off-by: Li Chen lchen@...arella.com>
 > >>> Change-Id: I32513d98f52af0311dfb55dd5c4739a58f6b9fc1
 > >>> ---
 > >>>  .../bindings/serial/ambarella_uart.yaml       | 57 +++++++++++++++++++
 > >>>  MAINTAINERS                                   |  1 +
 > >>>  2 files changed, 58 insertions(+)
 > >>>  create mode 100644 Documentation/devicetree/bindings/serial/ambarella_uart.yaml
 > >>>
 > >>> diff --git a/Documentation/devicetree/bindings/serial/ambarella_uart.yaml b/Documentation/devicetree/bindings/serial/ambarella_uart.yaml
 > >>> new file mode 100644
 > >>> index 000000000000..238d68078270
 > >>> --- /dev/null
 > >>> +++ b/Documentation/devicetree/bindings/serial/ambarella_uart.yaml
 > >>> @@ -0,0 +1,57 @@
 > >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 > >>> +%YAML 1.2
 > >>> +---
 > >>> +$id: http://devicetree.org/schemas/serial/ambarella_uart.yaml#
 > >>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
 > >>> +
 > >>> +title: Ambarella S6LM SoC UART Controller
 > >>> +
 > >>> +maintainers:
 > >>> +  - Li Chen lchen@...arella.com>
 > >>> +
 > >>> +properties:
 > >>> +  compatible:
 > >>> +    const: ambarella,uart
 > >>> +
 > >>> +  reg:
 > >>> +    maxItems: 1
 > >>> +
 > >>> +  amb,ignore-fe:
 > >>> +    description: |
 > >>> +      ignore frame error report for CV2/CV22/CV25/S6LM because it's
 > >>> +      checked too strict so that normal stop may be treated as frame error.
 > >>
 > >> Missing type. I don't understand why this is property of DT.
 > > 
 > > Ok, I will add "type: boolean" to it.
 > 
 > I still do not understand why this is a property of DT. You need to
 > justify it.
 > 
 > Otherwise: No. drop it.

Yes, this property is not describing hardware. I will drop it from dts and handle it via soc_device_attribute->data
or of_device_id->data instead.

Regards,
Li

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