linux-kernel - [PATCH RESEND v3 0/7] Cleanup Tegra210 EMC frequency scaling

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Message-ID: <20240507093056.3921-1-diogo.ivo@tecnico.ulisboa.pt>
Date: Tue,  7 May 2024 10:30:43 +0100
From: Diogo Ivo <diogo.ivo@...nico.ulisboa.pt>
To: krzysztof.kozlowski@...aro.org,
	thierry.reding@...il.com,
	jonathanh@...dia.com,
	linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Diogo Ivo <diogo.ivo@...nico.ulisboa.pt>
Subject: [PATCH RESEND v3 0/7] Cleanup Tegra210 EMC frequency scaling

Hello,

This patch series consists of a general cleanup of the Tegra210 EMC
frequency scaling code for revision 7.

Currently the code is relying heavily on a function, update_clock_tree_delay(),
that is responsible for too many things, making it long and confusing.
The general idea with these patches is to simplify this function and its
surrounding code, making it more modular.

The motivation behind these changes (besides improving readability and
maintainability) is to make it simpler to add support in the future for
frequency change revisions other than 7, where we can reuse a large
portion of the modularized code rather than essentially repeating 2k
lines of code with minimal changes.

There are no functional changes with this patch set, as it is only meant
as preparation for following patches where revision 6 support is added.

The second version of the series can be found in [1]. v3 contains
changes only in patch 02/07 where a variable is renamed in order to fix
a build error on some architectures.

[1]: https://lore.kernel.org/linux-tegra/20240419104516.308975-1-diogo.ivo@tecnico.ulisboa.pt/

Diogo Ivo (7):
  memory: tegra: Remove periodic compensation duplicate calls
  memory: tegra: Move DQSOSC measurement to common place
  memory: tegra: Reword and correct comments
  memory: tegra: Change macros to interpret parameter as integer
  memory: tegra: Loop update_clock_tree_delay()
  memory: tegra: Move compare/update current delay values to a function
  memory: tegra: Rework update_clock_tree_delay()

 drivers/memory/tegra/tegra210-emc-cc-r21021.c | 427 ++++--------------
 1 file changed, 84 insertions(+), 343 deletions(-)

-- 
2.44.0