linux-kernel - Re: [PATCH 0/4] Apple/PASemi i2c error recovery fixes

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Message-ID: <Z7y26r88nrK2QKVN@blossom>
Date: Mon, 24 Feb 2025 13:14:02 -0500
From: Alyssa Rosenzweig <alyssa@...enzweig.io>
To: sven@...npeter.dev
Cc: Janne Grunau <j@...nau.net>, Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Naveen N Rao <naveen@...nel.org>,
	Andi Shyti <andi.shyti@...nel.org>, linuxppc-dev@...ts.ozlabs.org,
	asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
	Hector Martin <marcan@...can.st>
Subject: Re: [PATCH 0/4] Apple/PASemi i2c error recovery fixes

Reviewed-by: Alyssa Rosenzweig <alyssa@...enzweig.io>

Le Sat , Feb 22, 2025 at 01:38:32PM +0000, Sven Peter via B4 Relay a écrit :
> Hi,
> 
> This series adds a few fixes/improvements to the error recovery for
> Apple/PASemi i2c controllers.
> The patches have been in our downstream tree and were originally used
> to debug a rare glitch caused by clock strechting but are useful in
> general. We haven't seen the controller misbehave since adding these.
> 
> Best,
> 
> Sven
> 
> Signed-off-by: Sven Peter <sven@...npeter.dev>
> ---
> Hector Martin (3):
>       i2c: pasemi: Improve error recovery
>       i2c: pasemi: Enable the unjam machine
>       i2c: pasemi: Log bus reset causes
> 
> Sven Peter (1):
>       i2c: pasemi: Add registers bits and switch to BIT()
> 
>  drivers/i2c/busses/i2c-pasemi-core.c | 121 ++++++++++++++++++++++++++---------
>  1 file changed, 92 insertions(+), 29 deletions(-)
> ---
> base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b
> change-id: 20250220-pasemi-fixes-916cb77404ba
> 
> Best regards,
> -- 
> Sven Peter <sven@...npeter.dev>
> 
>