linux-kernel - Re: [PATCH v2 0/8] drm: zynqmp_dp: Misc. patches and debugfs support

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Message-ID: <c5bc21b1-8725-4bd1-9125-16e59414fe4f@linux.dev>
Date: Tue, 19 Mar 2024 19:02:15 -0400
From: Sean Anderson <sean.anderson@...ux.dev>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 dri-devel@...ts.freedesktop.org
Cc: Michal Simek <michal.simek@....com>, David Airlie <airlied@...il.com>,
 linux-kernel@...r.kernel.org, Daniel Vetter <daniel@...ll.ch>,
 linux-arm-kernel@...ts.infradead.org,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
 Anatoliy Klymenko <anatoliy.klymenko@....com>
Subject: Re: [PATCH v2 0/8] drm: zynqmp_dp: Misc. patches and debugfs support

On 3/19/24 18:51, Sean Anderson wrote:
> This series adds debugfs support for the zynqmp_dp driver. The intent is
> to enable compliance testing or to help debug signal-integrity issues.
> 
> The first four patches are general improvements (and could be applied
> independently), while the last four add debugfs support.
> 
> Changes in v2:
> - Fix kerneldoc
> - Rearrange zynqmp_dp for better padding
> - Document hpd_irq_work
> - Split off the HPD IRQ work into another commit
> - Expand the commit message
> - Document debugfs files
> - Add ignore_aux_errors and ignore_hpd debugfs files to replace earlier
>   implicit functionality
> - Attempt to fix unreproducable, spurious build warning
> - Drop "Optionally ignore DPCD errors" in favor of a debugfs file
>   directly affecting zynqmp_dp_aux_transfer.
> 
> Sean Anderson (8):
>   drm: xlnx: Fix kerneldoc
>   drm: zynqmp_dp: Downgrade log level for aux retries message
>   drm: zynqmp_dp: Adjust training values per-lane
>   drm: zynqmp_dp: Rearrange zynqmp_dp for better padding
>   drm: zynqmp_dp: Don't retrain the link in our IRQ
>   drm: zynqmp_dp: Add locking
>   drm: zynqmp_dp: Split off several helper functions
>   drm: zynqmp_dp: Add debugfs interface for compliance testing
> 
>  Documentation/gpu/drivers.rst       |   1 +
>  Documentation/gpu/zynqmp.rst        | 149 +++++
>  MAINTAINERS                         |   1 +
>  drivers/gpu/drm/xlnx/zynqmp_disp.c  |   6 +-
>  drivers/gpu/drm/xlnx/zynqmp_dp.c    | 836 +++++++++++++++++++++++++---
>  drivers/gpu/drm/xlnx/zynqmp_dpsub.h |   1 +
>  drivers/gpu/drm/xlnx/zynqmp_kms.h   |   4 +-
>  7 files changed, 931 insertions(+), 67 deletions(-)
>  create mode 100644 Documentation/gpu/zynqmp.rst
> 

+CC Dmitry, Tomi, and Anatoliy who I forgot to CC

Let me know if you want to be taken off CC for future revisions

--Sean