[PATCH 0/3] drm/dp: Move DisplayPort helpers into own module

[Thomas Zimmermann]

Hi

Am 13.12.21 um 14:34 schrieb Jani Nikula:
> On Mon, 13 Dec 2021, Thomas Zimmermann <tzimmermann at suse.de> wrote:
>> Split-off DisplayPort functions from KMS helper library and move them
>> into their own module. Reduces the size of drm_kms_helper.ko by ~50%.
>>
>> This patchset is part of an on-going effort to reduce the minimum
>> binary size of the DRM core and helpers. It's helpful for systems with
>> early-boot DRM graphics, which requires DRM to be linked into the
>> kernel image.
> 
> Would it be time to add a subdirectory for each non-driver, non-core drm
> module? We've touched this topic before. I find it increasingly hard to
> remember which files are part of helpers. This would also help with the
> arbitrary drm_dp_helper_mod.c naming.
> 
> Perhaps drivers/gpu/drm/drm_dp/?

It's probably worth it, but I'd prefer a separate patchset and 
discussion over this. It affects several modules.

If adding drm_dp_helper_mod.c is overkill, that module code can also be 
added to drm_dp.c for now.

Best regards
Thomas

> 
> BR,
> Jani.
> 
> 
> 
>>
>> Thomas Zimmermann (3):
>>    drm/dp_mst: Remove trailing whitespace.
>>    drm/dp: Move DP declarations into separate header file
>>    drm/dp: Move DisplayPort helpers into separate helper module
>>
>>   drivers/gpu/drm/Kconfig                       |  8 ++++++
>>   drivers/gpu/drm/Makefile                      | 14 ++++++----
>>   drivers/gpu/drm/bridge/Kconfig                |  4 +++
>>   drivers/gpu/drm/bridge/analogix/Kconfig       |  2 ++
>>   drivers/gpu/drm/bridge/cadence/Kconfig        |  1 +
>>   drivers/gpu/drm/drm_crtc_helper_internal.h    | 27 ------------------
>>   drivers/gpu/drm/{drm_dp_helper.c => drm_dp.c} |  2 +-
>>   drivers/gpu/drm/drm_dp_aux_dev.c              |  2 +-
>>   drivers/gpu/drm/drm_dp_helper_internal.h      | 28 +++++++++++++++++++
>>   drivers/gpu/drm/drm_dp_helper_mod.c           | 22 +++++++++++++++
>>   drivers/gpu/drm/drm_dp_mst_topology.c         |  4 +--
>>   drivers/gpu/drm/drm_kms_helper_common.c       | 14 ----------
>>   drivers/gpu/drm/i915/Kconfig                  |  1 +
>>   drivers/gpu/drm/msm/Kconfig                   |  1 +
>>   drivers/gpu/drm/nouveau/Kconfig               |  1 +
>>   drivers/gpu/drm/rockchip/Kconfig              |  1 +
>>   drivers/gpu/drm/tegra/Kconfig                 |  1 +
>>   drivers/gpu/drm/xlnx/Kconfig                  |  1 +
>>   18 files changed, 83 insertions(+), 51 deletions(-)
>>   rename drivers/gpu/drm/{drm_dp_helper.c => drm_dp.c} (99%)
>>   create mode 100644 drivers/gpu/drm/drm_dp_helper_internal.h
>>   create mode 100644 drivers/gpu/drm/drm_dp_helper_mod.c
>>
>>
>> base-commit: 3f422828221d9ceefcddef0be33561b1646a1cbe
>> prerequisite-patch-id: c2b2f08f0eccc9f5df0c0da49fa1d36267deb11d
>> prerequisite-patch-id: c67e5d886a47b7d0266d81100837557fda34cb24
>> --
>> 2.34.1
>>
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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