linux-kernel - Re: [PATCH v2 3/7] i2c: npcm: use a software flag to indicate a BER condition

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Message-ID: <x3qhp6xpmeafsaufplh76tflru5bfbjjhndnu3ethw6gpbkre6@pyaswbbuog7y>
Date: Thu, 5 Sep 2024 23:33:31 +0200
From: Andi Shyti <andi.shyti@...nel.org>
To: Tyrone Ting <warp5tw@...il.com>
Cc: avifishman70@...il.com, tmaimon77@...il.com, tali.perry1@...il.com, 
	venture@...gle.com, yuenn@...gle.com, benjaminfair@...gle.com, 
	andriy.shevchenko@...ux.intel.com, wsa@...nel.org, rand.sec96@...il.com, 
	wsa+renesas@...g-engineering.com, tali.perry@...oton.com, Avi.Fishman@...oton.com, 
	tomer.maimon@...oton.com, KWLIU@...oton.com, JJLIU0@...oton.com, kfting@...oton.com, 
	openbmc@...ts.ozlabs.org, linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/7] i2c: npcm: use a software flag to indicate a BER
 condition

Hi,

On Fri, Aug 30, 2024 at 11:46:36AM GMT, Tyrone Ting wrote:
> If not clearing the BB (bus busy) condition in the BER (bus error)
> interrupt, the driver causes a timeout and hence the i2c core
> doesn't do the i2c transfer retry but returns the driver's return
> value to the upper layer instead.
> 
> Clear the BB condition in the BER interrupt and a software flag is
> used. The driver does an i2c recovery without causing the timeout
> if the flag is set.
> 
> Fixes: 48acf8292280 ("i2c: Remove redundant comparison in npcm_i2c_reg_slave")
> Signed-off-by: Tyrone Ting <kfting@...oton.com>

Can I have an ack from the supporters of the ARM/NUVOTON NPCM
ARCHITECTURE here?

Thanks,
Andi