Re: [PATCH v2 0/2] iio: dac: adi-axi-dac: fix for wrong bus read
From: Nuno Sá
Date: Wed Apr 09 2025 - 09:57:45 EST
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@xxxxxxxxxxxx
> Signed-off-by: Angelo Dureghello <adureghello@xxxxxxxxxxxx>
> ---
LGTM,
Reviewed-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
> Changes in v2:
> - invert patch order, fix first.
> - Link to v1:
> https://lore.kernel.org/r/20250408-ad3552r-fix-bus-read-v1-0-37add66aeb08@xxxxxxxxxxxx
>
> ---
> 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,