linux-kernel - [PATCH 0/7] clk: samsung: Enable PM in Exynos850 clk driver

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Date:   Wed,  8 Mar 2023 17:38:15 -0600
From:   Sam Protsenko <semen.protsenko@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Chanho Park <chanho61.park@...sung.com>,
        David Virag <virag.david003@...il.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/7] clk: samsung: Enable PM in Exynos850 clk driver

One difference Exynos850 has w.r.t. other Exynos platforms in terms of
PM is that EL3 monitor handles TZ protection of CMU domains on
suspend/resume for us. This series enables PM support in clk-exynos850,
which was originally borrowed/extracted from clk-exynos5433 driver, and
also adds other missing bits, like adding those SMC calls, keeping PMU
clock always enabled and configuring MUX clocks before the suspend.

Dependencies inside of this series:

  - patch #7 must go after #4
  - patches 3-6 should go in the same order as in the series
  - better to keep patche #1 and #2 before the rest of patches,
    so that the driver and dts always use documented properties

Sam Protsenko (7):
  dt-bindings: clock: exynos850: Add power-domains property
  dt-bindings: clock: exynos850: Add tzpc property
  clk: samsung: Implement PM SMC calls for ARM64 Exynos SoCs
  clk: samsung: exynos850: Make PMU_ALIVE_PCLK critical
  clk: samsung: exynos850: Add suspend state for all CMUs
  clk: samsung: exynos850: Enable PM support in clk-exynos850
  arm64: dts: exynos: Remove clock from Exynos850 pmu_system_controller

 .../clock/samsung,exynos850-clock.yaml        |  13 ++
 arch/arm64/boot/dts/exynos/exynos850.dtsi     |   1 -
 drivers/clk/samsung/clk-exynos-arm64.c        |  39 +++++-
 drivers/clk/samsung/clk-exynos850.c           | 112 ++++++++++++++++--
 4 files changed, 153 insertions(+), 12 deletions(-)

-- 
2.39.2