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Message-ID: <874a4c0d-5447-4e74-fd9f-9493a8b1fa24@ti.com>
Date:   Wed, 19 Apr 2023 14:16:53 +0530
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Subject: Re: [PATCH 1/3] dt-bindings: misc: esm: Add ESM support for TI K3
 devices
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To:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        <u-boot@lists.denx.de>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        Guenter Roeck <linux@roeck-us.net>
CC:     <nm@ti.com>, <vigneshr@ti.com>, <u-kumar1@ti.com>
References: <20230414105225.194195-1-n-francis@ti.com>
 <20230414105225.194195-2-n-francis@ti.com>
 <40498f71-d0cd-e7af-6515-c60a8d1edce8@linaro.org>
 <d4a017e6-6df4-fc50-49c4-12c53719b7c0@ti.com>
 <eb6bfe2e-1e44-bfb5-01b9-bbf53eba6501@linaro.org>
From:   Neha Malcom Francis <n-francis@ti.com>
In-Reply-To: <eb6bfe2e-1e44-bfb5-01b9-bbf53eba6501@linaro.org>
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Hi Krzysztof

On 18/04/23 21:40, Krzysztof Kozlowski wrote:
> On 17/04/2023 10:56, Neha Malcom Francis wrote:
>> Hi Krzysztof
>>
>> On 14/04/23 17:10, Krzysztof Kozlowski wrote:
>>> On 14/04/2023 12:52, Neha Malcom Francis wrote:
>>>> Document the binding for TI K3 ESM (Error Signaling Module) block.
>>>>
>>>> Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
>>>> ---
>>>>    .../devicetree/bindings/misc/esm-k3.yaml      | 54 +++++++++++++++++++
>>>>    1 file changed, 54 insertions(+)
>>>>    create mode 100644 Documentation/devicetree/bindings/misc/esm-k3.yaml
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/misc/esm-k3.yaml b/Documentation/devicetree/bindings/misc/esm-k3.yaml
>>>> new file mode 100644
>>>> index 000000000000..5e637add3b0e
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/misc/esm-k3.yaml
>>>
>>> Filename matching compatible. Missing vendor prefix and device name.
>>>
>>>> @@ -0,0 +1,54 @@
>>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>>> +# Copyright (C) 2022 Texas Instruments Incorporated
>>>> +%YAML 1.2
>>>> +---
>>>> +$id: http://devicetree.org/schemas/misc/esm-k3.yaml#
>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>>> +
>>>> +title: Texas Instruments K3 ESM Binding
>>>
>>> Drop: Binding
>>>
>>>> +
>>>> +maintainers:
>>>> +  - Neha Malcom Francis <n-francis@ti.com>
>>>> +
>>>> +description: |
>>>> +  The ESM (Error Signaling Module) is an IP block on TI K3 devices
>>>> +  that allows handling of safety events somewhat similar to what interrupt
>>>> +  controller would do. The safety signals have their separate paths within
>>>> +  the SoC, and they are handld by the ESM, which routes them to the proper
>>>
>>> typo: handled
>>>
>>>> +  destination, which can be system reset, interrupt controller, etc. In the
>>>> +  simplest configuration the signals are just routed to reset the SoC.
>>>
>>> There is no proper bindings directory for ESM? Misc is discouraged.
>>>
>>
>> There is no other directory I see fit for a block like ESM; it could
>> either remain in misc/ or maybe create a directory error/ for all error
>> signaling and correction mechanisms? I see misc/xlnx,sd-fec.txt that
>> could also go in error/
>>
>> What do you think is fit?
> 
> I don't know. Maybe it is something like hwmon? Or maybe along with
> xlnx,sd-fec, tmr-inject and tmr-manager should be moved to some "fault"
> directory for all fault-management-and-handling hardware?
> 

I think hwmon would be a fit for now. Maybe we can move to a common 
fault directory in a future patch if there is enough bindings.

> Best regards,
> Krzysztof
> 

-- 
Thanking You
Neha Malcom Francis