linux-kernel - Re: [PATCH v2 0/2] iio: dac: adi-axi-dac: fix for wrong bus read

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Message-ID: <pudzvw4sbgw7ixbke4glovai5vxahmwrjpqlwrwazpeulyowug@534aodgws5db>
Date: Tue, 22 Apr 2025 10:41:52 +0200
From: Angelo Dureghello <adureghello@...libre.com>
To: Nuno Sá <noname.nuno@...il.com>
Cc: Nuno Sa <nuno.sa@...log.com>, Lars-Peter Clausen <lars@...afoo.de>, 
	Michael Hennerich <Michael.Hennerich@...log.com>, Jonathan Cameron <jic23@...nel.org>, 
	David Lechner <dlechner@...libre.com>, Andy Shevchenko <andy@...nel.org>, linux-iio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [PATCH v2 0/2] iio: dac: adi-axi-dac: fix for wrong bus read

Hi all,

please let me know if you want me to use defines for this patchset,
i don't see the need honestly, but eventually it can be done in another
separate patch, for the whole adi-axi-dac file.

On 09.04.2025 14:57, Nuno Sá wrote:
> On Wed, 2025-04-09 at 11:16 +0200, Angelo Dureghello wrote:
> > This patchset is intended to fix a random wrong chip ID read, or a
> > scratchpad test mismatch, tests done in the ad3552r-hs driver probe. The 
> > bus "read" operation must always check for busy flag before reading.
> > 
> > First patch reorganizes a bit the busy-wait polling code, second patch
> > fixes the wrong bus read occurence. 
> > 
> > NOTE: due to ongoing changes in adi-axi-dac.c, this patch is intended to be
> > applied after the linked "ramp generator" patch.
> > 
> > Link:
> > https://lore.kernel.org/linux-iio/20250408-wip-bl-ad3552r-fixes-v4-0-b33c0264bd78@baylibre.com
> > Signed-off-by: Angelo Dureghello <adureghello@...libre.com>
> > ---
> 
> LGTM,
> 
> Reviewed-by: Nuno Sá <nuno.sa@...log.com>
> 
> > Changes in v2:
> > - invert patch order, fix first.
> > - Link to v1:
> > https://lore.kernel.org/r/20250408-ad3552r-fix-bus-read-v1-0-37add66aeb08@baylibre.com
> > 
> > ---
> > Angelo Dureghello (2):
> >       iio: dac: adi-axi-dac: fix bus read
> >       iio: dac: adi-axi-dac: use unique bus free check
> > 
> >  drivers/iio/dac/adi-axi-dac.c | 40 +++++++++++++++++++++++++---------------
> >  1 file changed, 25 insertions(+), 15 deletions(-)
> > ---
> > base-commit: 6fb85f14853ddde06d57030c753168402bf69cd9
> > change-id: 20250408-ad3552r-fix-bus-read-1522622fbd2b
> > 
> > Best regards,

Regards,
angelo