linux-kernel - [PATCH v4 0/3] clk: amlogic: drop clk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250623-amlogic-clk-drop-clk-regmap-tables-v4-0-ff04918211cc@baylibre.com>
Date: Mon, 23 Jun 2025 18:37:36 +0200
From: Jerome Brunet <jbrunet@...libre.com>
To: Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Neil Armstrong <neil.armstrong@...aro.org>, 
 Kevin Hilman <khilman@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-amlogic@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
 Jerome Brunet <jbrunet@...libre.com>
Subject: [PATCH v4 0/3] clk: amlogic: drop clk_regmap tables

This patchset removes the need for clk_regmap tables in each clock
controller driver. These were used to populate regmap with in the regmap
based clocks.

This saves memory and is the 2nd step in a series of rework of Amlogic
clocks, to clean-up, increase code re-use and ease future maintenance.

Note: the clock initilization callback has guess what in order to properly
get the necessary regmap. This is not ideal and temporary as noted in the
code comments. This intent is to eventualy replace this with a dedicated
location where regmap may be consistently retreived by the clock.

Changes in v4:
- Rebased clk-meson-next targeting v6.17
- Link to v3: https://lore.kernel.org/r/20250120-amlogic-clk-drop-clk-regmap-tables-v3-0-126244146947@baylibre.com

Changes in v3:
- Fix some typos
- Link to v2: https://lore.kernel.org/r/20250117-amlogic-clk-drop-clk-regmap-tables-v2-0-d1f77cb0773e@baylibre.com

Changes in v2:
- Add clk_hw_get_of_node and kunit tests for the new helpers
- Split patch adding the .init() and the dropping the table
- Drop devres based solution and something temporary but simple
  while a more generic solution to hook controller init is discussed.
- Link to v1: https://lore.kernel.org/r/20241220-amlogic-clk-drop-clk-regmap-tables-v1-0-96dd657cbfbd@baylibre.com

Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
Jerome Brunet (3):
      clk: amlogic: get regmap with clk_regmap_init
      clk: amlogic: drop clk_regmap tables
      clk: amlogic: s4: remove unused data

 drivers/clk/meson/Kconfig          |   1 +
 drivers/clk/meson/a1-peripherals.c | 163 +-------------
 drivers/clk/meson/a1-pll.c         |  16 +-
 drivers/clk/meson/axg-aoclk.c      |  22 --
 drivers/clk/meson/axg-audio.c      | 433 -------------------------------------
 drivers/clk/meson/axg.c            | 131 -----------
 drivers/clk/meson/c3-peripherals.c | 210 +-----------------
 drivers/clk/meson/c3-pll.c         |  32 +--
 drivers/clk/meson/clk-cpu-dyndiv.c |   1 +
 drivers/clk/meson/clk-dualdiv.c    |   2 +
 drivers/clk/meson/clk-mpll.c       |   6 +
 drivers/clk/meson/clk-phase.c      |  11 +
 drivers/clk/meson/clk-pll.c        |   7 +
 drivers/clk/meson/clk-regmap.c     |  49 +++++
 drivers/clk/meson/clk-regmap.h     |   4 +
 drivers/clk/meson/g12a-aoclk.c     |  34 ---
 drivers/clk/meson/g12a.c           | 261 ----------------------
 drivers/clk/meson/gxbb-aoclk.c     |  19 --
 drivers/clk/meson/gxbb.c           | 393 ---------------------------------
 drivers/clk/meson/meson-aoclk.c    |   5 +-
 drivers/clk/meson/meson-aoclk.h    |   2 -
 drivers/clk/meson/meson-eeclk.c    |   4 -
 drivers/clk/meson/meson-eeclk.h    |   2 -
 drivers/clk/meson/meson8-ddr.c     |   9 -
 drivers/clk/meson/meson8b.c        | 200 -----------------
 drivers/clk/meson/s4-peripherals.c | 341 -----------------------------
 drivers/clk/meson/s4-pll.c         |  31 ---
 drivers/clk/meson/sclk-div.c       |   5 +
 drivers/clk/meson/vclk.c           |   2 +
 drivers/clk/meson/vid-pll-div.c    |   1 +
 30 files changed, 94 insertions(+), 2303 deletions(-)
---
base-commit: b7f68cdf9f2a42b88815941538446dbf4f2dd464
change-id: 20241220-amlogic-clk-drop-clk-regmap-tables-18e5cf572356

Best regards,
-- 
Jerome