linux-kernel - Re: [PATCH v5 1/2] dt-bindings: dma: Add bindings for intel LGM SOC

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Message-ID: <354cc7a4-de2f-1ed4-882d-3a285f565a26@ti.com>
Date:   Fri, 4 Sep 2020 09:31:12 +0300
From:   Peter Ujfalusi <peter.ujfalusi@...com>
To:     "Reddy, MallikarjunaX" <mallikarjunax.reddy@...ux.intel.com>,
        Rob Herring <robh@...nel.org>
CC:     <dmaengine@...r.kernel.org>, <vkoul@...nel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <andriy.shevchenko@...el.com>, <cheol.yong.kim@...el.com>,
        <qi-ming.wu@...el.com>, <chuanhua.lei@...ux.intel.com>,
        <malliamireddy009@...il.com>
Subject: Re: [PATCH v5 1/2] dt-bindings: dma: Add bindings for intel LGM SOC



On 18/08/2020 10.00, Reddy, MallikarjunaX wrote:
> Hi Rob,
> Thanks for your valuable comments. Please see my comments inline..
> 
> On 8/15/2020 4:32 AM, Rob Herring wrote:
>> On Fri, Aug 14, 2020 at 01:26:09PM +0800, Amireddy Mallikarjuna reddy
>> wrote:
>>> Add DT bindings YAML schema for DMA controller driver
>>> of Lightning Mountain(LGM) SoC.
>>>
>>> Signed-off-by: Amireddy Mallikarjuna reddy
>>> <mallikarjunax.reddy@...ux.intel.com>
>>> ---
>>> v1:
>>> - Initial version.
>>>
>>> v2:
>>> - Fix bot errors.
>>>
>>> v3:
>>> - No change.
>>>
>>> v4:
>>> - Address Thomas langer comments
>>>    - use node name pattern as dma-controller as in common binding.
>>>    - Remove "_" (underscore) in instance name.
>>>    - Remove "port-" and "chan-" in attribute name for both
>>> 'dma-ports' & 'dma-channels' child nodes.
>>>
>>> v5:
>>> - Moved some of the attributes in 'dma-ports' & 'dma-channels' child
>>> nodes to dma client/consumer side as cells in 'dmas' properties.
>>> ---
>>>   .../devicetree/bindings/dma/intel,ldma.yaml        | 319
>>> +++++++++++++++++++++
>>>   1 file changed, 319 insertions(+)
>>>   create mode 100644
>>> Documentation/devicetree/bindings/dma/intel,ldma.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/dma/intel,ldma.yaml
>>> b/Documentation/devicetree/bindings/dma/intel,ldma.yaml
>>> new file mode 100644
>>> index 000000000000..9beaf191a6de
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/dma/intel,ldma.yaml
>>> @@ -0,0 +1,319 @@
>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/dma/intel,ldma.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: Lightning Mountain centralized low speed DMA and high speed
>>> DMA controllers.
>>> +
>>> +maintainers:
>>> +  - chuanhua.lei@...el.com
>>> +  - mallikarjunax.reddy@...el.com
>>> +
>>> +allOf:
>>> +  - $ref: "dma-controller.yaml#"
>>> +
>>> +properties:
>>> + $nodename:
>>> +   pattern: "^dma-controller(@.*)?$"
>>> +
>>> + "#dma-cells":
>>> +   const: 1
>> Example says 3.
> OK, i will fix it.

It would help if you would add description of what is the meaning of the
individual cell.

- Péter

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