[0/6] clk: samsung: exynos850: Clock driver improvements

Message

Sam Protsenko Nov. 21, 2021, 11:27 p.m. UTC

This cumulative series supersedes next patches/series:
  1. CMU_APM domain implementation series [1]
  2. CMU_CMGP domain implementation series [2]
  3. "Register clocks early" patch [3]

with changes as follows:
  - add "Keep some crucial clocks running" patch [6/6]
  - enable CMU_PERI parent clock early
  - move bindings headers changes into bindings doc patches

Tested:
  - CMU_TOP is registered before CMU_PERI
  - CMU_PERI parent clock is enabled early and successfully, and running
    before any access to CMU_PERI registers
  - kernel boots successfully without "clk_ignore_unused" param
  - MCT timer works fine and doesn't panic during bootup

[1] https://lkml.org/lkml/2021/10/22/978
[2] https://lkml.org/lkml/2021/11/9/660
[3] https://lkml.org/lkml/2021/10/25/818

Sam Protsenko (6):
  dt-bindings: clock: Add bindings for Exynos850 CMU_APM
  clk: samsung: exynos850: Implement CMU_APM domain
  dt-bindings: clock: Add bindings for Exynos850 CMU_CMGP
  clk: samsung: exynos850: Implement CMU_CMGP domain
  clk: samsung: exynos850: Register clocks early
  clk: samsung: exynos850: Keep some crucial clocks running

 .../clock/samsung,exynos850-clock.yaml        |  38 ++
 drivers/clk/samsung/clk-exynos850.c           | 327 ++++++++++++++++--
 include/dt-bindings/clock/exynos850.h         |  46 ++-
 3 files changed, 387 insertions(+), 24 deletions(-)