Re: [PATCH v2 3/3] i2c: mv64xxx: add support for FSM based recovery

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Subject: Re: [PATCH v2 3/3] i2c: mv64xxx: add support for FSM based recovery
From: Wolfram Sang <wsa@xxxxxxxxxx>
Date: Fri, 13 Oct 2023 09:11:33 +0200
Cc: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>, gregory.clement@xxxxxxxxxxx, robh+dt@xxxxxxxxxx, krzysztof.kozlowski+dt@xxxxxxxxxx, conor+dt@xxxxxxxxxx, pierre.gondois@xxxxxxx, linux-i2c@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20231012201541.nzlxyjngm3d5asir@zenone.zhora.eu>
Mail-followup-to: Wolfram Sang <wsa@xxxxxxxxxx>, Andi Shyti <andi.shyti@xxxxxxxxxx>, Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>, gregory.clement@xxxxxxxxxxx, robh+dt@xxxxxxxxxx, krzysztof.kozlowski+dt@xxxxxxxxxx, conor+dt@xxxxxxxxxx, pierre.gondois@xxxxxxx, linux-i2c@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
References: <20231006003321.2100016-1-chris.packham@alliedtelesis.co.nz> <20231006003321.2100016-4-chris.packham@alliedtelesis.co.nz> <20231012201541.nzlxyjngm3d5asir@zenone.zhora.eu>

> mmmhhh... still a bit skeptical about waiting 100 times 10us in
> atomic.

Has it been discussed already why the non-atomic version of
read_poll_timeout is not enough?

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References:
- [PATCH v2 0/3] i2c: mv64xxx: Support for I2C unstuck
  - From: Chris Packham
- [PATCH v2 3/3] i2c: mv64xxx: add support for FSM based recovery
  - From: Chris Packham
- Re: [PATCH v2 3/3] i2c: mv64xxx: add support for FSM based recovery
  - From: Andi Shyti

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