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From:   Ulf Hansson <ulf.hansson@linaro.org>
To:     Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>
Cc:     Ulf Hansson <ulf.hansson@linaro.org>, linux-pm@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 00/18] genpd: Create a genpd directory to host genpd providers
Date:   Fri,  7 Jul 2023 16:04:16 +0200
Message-Id: <20230707140434.723349-1-ulf.hansson@linaro.org>
MIME-Version: 1.0
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Precedence: bulk

There are currently ~60 users of the genpd provider interface, which
implementations are sprinkled across various subsystems. To help out with
maintenance and to gain a bit better control, let's create a new subsystem
(drivers/genpd) and move some of the providers from the soc directories in here.

Clearly some providers aren't really feasible to move - and that's perfectly
fine too. We don't need to keep all genpd providers together to improve the
situation, but keeping most of them would be nice, I think. At this point I
have walked through driver/soc and /arch/ - deferring others to later.

Note that, the intention is also to host a git tree (it's not been created yet,
but should be quick if this seems reasonable to everybody), to collect and to
get the patches tested/integrated through the linux-next tree. Ideally this
should release some of the burden on the soc maintainers (Arnd/Olof/etc).

Note that, going forward - it's probably best to funnel this through the soc
tree (I can send a pull request if agreed) the I can take over in the next
release cycle at v6.6-rc1 and onwards. In that case, I will of course require
acks/reviews from the current platform/soc maintainers, hence the MAINTAINERS
are also being updated as a part of $subject series.

Does this make sense?

Kind regards
Ulf Hansson


Ulf Hansson (18):
  genpd: Create a new subsystem directory to host genpd providers
  soc: actions: Move power-domain driver to the genpd dir
  soc: amlogic: Move power-domain drivers to the genpd dir
  soc: apple: Move power-domain driver to the genpd dir
  soc: bcm: Move power-domain drivers to the genpd dir
  soc: imx: Move power-domain drivers to the genpd dir
  soc: mediatek: Move power-domain drivers to the genpd dir
  soc: qcom: Move power-domain drivers to the genpd dir
  soc: renesas: Move power-domain drivers to the genpd dir
  soc: rockchip: Mover power-domain driver to the genpd dir
  soc: samsung: Move power-domain driver to the genpd dir
  soc: starfive: Move the power-domain driver to the genpd dir
  soc: sunxi: Move power-domain driver to the genpd dir
  soc: tegra: Move powergate-bpmp driver to the genpd dir
  soc: ti: Mover power-domain drivers to the genpd dir
  soc: xilinx: Move power-domain driver to the genpd dir
  ARM: ux500: Convert power-domain code into a regular platform driver
  ARM: ux500: Move power-domain driver to the genpd dir

 MAINTAINERS                                   | 22 ++++++++++----
 arch/arm/mach-ux500/Makefile                  |  1 -
 arch/arm/mach-ux500/cpu-db8500.c              |  5 ----
 arch/arm/mach-ux500/pm_domains.h              | 17 -----------
 drivers/Makefile                              |  1 +
 drivers/genpd/Makefile                        | 16 ++++++++++
 drivers/genpd/actions/Makefile                |  2 ++
 drivers/{soc => genpd}/actions/owl-sps.c      |  0
 drivers/genpd/amlogic/Makefile                |  4 +++
 .../{soc => genpd}/amlogic/meson-ee-pwrc.c    |  0
 .../amlogic/meson-gx-pwrc-vpu.c               |  0
 .../amlogic/meson-secure-pwrc.c               |  0
 drivers/genpd/apple/Makefile                  |  2 ++
 .../apple/pmgr-pwrstate.c}                    |  0
 drivers/genpd/bcm/Makefile                    |  5 ++++
 .../{soc/bcm/bcm63xx => genpd/bcm}/bcm-pmb.c  |  0
 drivers/{soc => genpd}/bcm/bcm2835-power.c    |  0
 .../bcm/bcm63xx => genpd/bcm}/bcm63xx-power.c |  0
 .../{soc => genpd}/bcm/raspberrypi-power.c    |  0
 drivers/genpd/imx/Makefile                    |  7 +++++
 drivers/{soc => genpd}/imx/gpc.c              |  0
 drivers/{soc => genpd}/imx/gpcv2.c            |  0
 drivers/{soc => genpd}/imx/imx8m-blk-ctrl.c   |  0
 drivers/{soc => genpd}/imx/imx8mp-blk-ctrl.c  |  0
 drivers/{soc => genpd}/imx/imx93-blk-ctrl.c   |  0
 drivers/{soc => genpd}/imx/imx93-pd.c         |  0
 drivers/genpd/mediatek/Makefile               |  3 ++
 .../mediatek/mt6795-pm-domains.h              |  0
 .../mediatek/mt8167-pm-domains.h              |  0
 .../mediatek/mt8173-pm-domains.h              |  0
 .../mediatek/mt8183-pm-domains.h              |  0
 .../mediatek/mt8186-pm-domains.h              |  0
 .../mediatek/mt8188-pm-domains.h              |  0
 .../mediatek/mt8192-pm-domains.h              |  0
 .../mediatek/mt8195-pm-domains.h              |  0
 .../{soc => genpd}/mediatek/mtk-pm-domains.c  |  0
 .../{soc => genpd}/mediatek/mtk-pm-domains.h  |  0
 drivers/{soc => genpd}/mediatek/mtk-scpsys.c  |  0
 drivers/genpd/qcom/Makefile                   |  4 +++
 drivers/{soc => genpd}/qcom/cpr.c             |  0
 drivers/{soc => genpd}/qcom/rpmhpd.c          |  0
 drivers/{soc => genpd}/qcom/rpmpd.c           |  0
 drivers/genpd/renesas/Makefile                | 30 +++++++++++++++++++
 drivers/{soc => genpd}/renesas/r8a7742-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7743-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7745-sysc.c |  0
 .../{soc => genpd}/renesas/r8a77470-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a774a1-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a774b1-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a774c0-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a774e1-sysc.c    |  0
 drivers/{soc => genpd}/renesas/r8a7779-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7790-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7791-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7792-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7794-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7795-sysc.c |  0
 drivers/{soc => genpd}/renesas/r8a7796-sysc.c |  0
 .../{soc => genpd}/renesas/r8a77965-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a77970-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a77980-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a77990-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a77995-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a779a0-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a779f0-sysc.c    |  0
 .../{soc => genpd}/renesas/r8a779g0-sysc.c    |  0
 .../{soc => genpd}/renesas/rcar-gen4-sysc.c   |  0
 .../{soc => genpd}/renesas/rcar-gen4-sysc.h   |  0
 drivers/{soc => genpd}/renesas/rcar-sysc.c    |  0
 drivers/{soc => genpd}/renesas/rcar-sysc.h    |  0
 drivers/{soc => genpd}/renesas/rmobile-sysc.c |  0
 drivers/genpd/rockchip/Makefile               |  2 ++
 .../rockchip/pm-domains.c}                    |  0
 drivers/genpd/samsung/Makefile                |  2 ++
 .../samsung/exynos-pm-domains.c}              |  0
 drivers/genpd/st/Makefile                     |  2 ++
 .../genpd/st/ste-ux500-pm-domain.c            | 25 ++++++++++++----
 drivers/genpd/starfive/Makefile               |  2 ++
 .../starfive/jh71xx-pmu.c}                    |  0
 drivers/genpd/sunxi/Makefile                  |  2 ++
 drivers/{soc => genpd}/sunxi/sun20i-ppu.c     |  0
 drivers/genpd/tegra/Makefile                  |  2 ++
 drivers/{soc => genpd}/tegra/powergate-bpmp.c |  0
 drivers/genpd/ti/Makefile                     |  3 ++
 drivers/{soc => genpd}/ti/omap_prm.c          |  0
 drivers/{soc => genpd}/ti/ti_sci_pm_domains.c |  0
 drivers/genpd/xilinx/Makefile                 |  2 ++
 .../xilinx/zynqmp-pm-domains.c}               |  0
 drivers/soc/Makefile                          |  1 -
 drivers/soc/actions/Makefile                  |  1 -
 drivers/soc/amlogic/Makefile                  |  3 --
 drivers/soc/apple/Makefile                    |  2 --
 drivers/soc/bcm/Kconfig                       | 22 +++++++++++++-
 drivers/soc/bcm/Makefile                      |  3 --
 drivers/soc/bcm/bcm63xx/Kconfig               | 21 -------------
 drivers/soc/bcm/bcm63xx/Makefile              |  3 --
 drivers/soc/imx/Makefile                      |  7 +----
 drivers/soc/mediatek/Makefile                 |  2 --
 drivers/soc/qcom/Makefile                     |  3 --
 drivers/soc/renesas/Makefile                  | 27 -----------------
 drivers/soc/rockchip/Makefile                 |  1 -
 drivers/soc/samsung/Makefile                  |  1 -
 drivers/soc/starfive/Makefile                 |  3 --
 drivers/soc/sunxi/Makefile                    |  1 -
 drivers/soc/tegra/Makefile                    |  1 -
 drivers/soc/ti/Makefile                       |  2 --
 drivers/soc/xilinx/Makefile                   |  1 -
 107 files changed, 150 insertions(+), 116 deletions(-)
 delete mode 100644 arch/arm/mach-ux500/pm_domains.h
 create mode 100644 drivers/genpd/Makefile
 create mode 100644 drivers/genpd/actions/Makefile
 rename drivers/{soc => genpd}/actions/owl-sps.c (100%)
 create mode 100644 drivers/genpd/amlogic/Makefile
 rename drivers/{soc => genpd}/amlogic/meson-ee-pwrc.c (100%)
 rename drivers/{soc => genpd}/amlogic/meson-gx-pwrc-vpu.c (100%)
 rename drivers/{soc => genpd}/amlogic/meson-secure-pwrc.c (100%)
 create mode 100644 drivers/genpd/apple/Makefile
 rename drivers/{soc/apple/apple-pmgr-pwrstate.c => genpd/apple/pmgr-pwrstate.c} (100%)
 create mode 100644 drivers/genpd/bcm/Makefile
 rename drivers/{soc/bcm/bcm63xx => genpd/bcm}/bcm-pmb.c (100%)
 rename drivers/{soc => genpd}/bcm/bcm2835-power.c (100%)
 rename drivers/{soc/bcm/bcm63xx => genpd/bcm}/bcm63xx-power.c (100%)
 rename drivers/{soc => genpd}/bcm/raspberrypi-power.c (100%)
 create mode 100644 drivers/genpd/imx/Makefile
 rename drivers/{soc => genpd}/imx/gpc.c (100%)
 rename drivers/{soc => genpd}/imx/gpcv2.c (100%)
 rename drivers/{soc => genpd}/imx/imx8m-blk-ctrl.c (100%)
 rename drivers/{soc => genpd}/imx/imx8mp-blk-ctrl.c (100%)
 rename drivers/{soc => genpd}/imx/imx93-blk-ctrl.c (100%)
 rename drivers/{soc => genpd}/imx/imx93-pd.c (100%)
 create mode 100644 drivers/genpd/mediatek/Makefile
 rename drivers/{soc => genpd}/mediatek/mt6795-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mt8167-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mt8173-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mt8183-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mt8186-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mt8188-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mt8192-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mt8195-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mtk-pm-domains.c (100%)
 rename drivers/{soc => genpd}/mediatek/mtk-pm-domains.h (100%)
 rename drivers/{soc => genpd}/mediatek/mtk-scpsys.c (100%)
 create mode 100644 drivers/genpd/qcom/Makefile
 rename drivers/{soc => genpd}/qcom/cpr.c (100%)
 rename drivers/{soc => genpd}/qcom/rpmhpd.c (100%)
 rename drivers/{soc => genpd}/qcom/rpmpd.c (100%)
 create mode 100644 drivers/genpd/renesas/Makefile
 rename drivers/{soc => genpd}/renesas/r8a7742-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7743-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7745-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a77470-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a774a1-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a774b1-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a774c0-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a774e1-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7779-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7790-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7791-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7792-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7794-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7795-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a7796-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a77965-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a77970-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a77980-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a77990-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a77995-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a779a0-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a779f0-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/r8a779g0-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/rcar-gen4-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/rcar-gen4-sysc.h (100%)
 rename drivers/{soc => genpd}/renesas/rcar-sysc.c (100%)
 rename drivers/{soc => genpd}/renesas/rcar-sysc.h (100%)
 rename drivers/{soc => genpd}/renesas/rmobile-sysc.c (100%)
 create mode 100644 drivers/genpd/rockchip/Makefile
 rename drivers/{soc/rockchip/pm_domains.c => genpd/rockchip/pm-domains.c} (100%)
 create mode 100644 drivers/genpd/samsung/Makefile
 rename drivers/{soc/samsung/pm_domains.c => genpd/samsung/exynos-pm-domains.c} (100%)
 create mode 100644 drivers/genpd/st/Makefile
 rename arch/arm/mach-ux500/pm_domains.c => drivers/genpd/st/ste-ux500-pm-domain.c (75%)
 create mode 100644 drivers/genpd/starfive/Makefile
 rename drivers/{soc/starfive/jh71xx_pmu.c => genpd/starfive/jh71xx-pmu.c} (100%)
 create mode 100644 drivers/genpd/sunxi/Makefile
 rename drivers/{soc => genpd}/sunxi/sun20i-ppu.c (100%)
 create mode 100644 drivers/genpd/tegra/Makefile
 rename drivers/{soc => genpd}/tegra/powergate-bpmp.c (100%)
 create mode 100644 drivers/genpd/ti/Makefile
 rename drivers/{soc => genpd}/ti/omap_prm.c (100%)
 rename drivers/{soc => genpd}/ti/ti_sci_pm_domains.c (100%)
 create mode 100644 drivers/genpd/xilinx/Makefile
 rename drivers/{soc/xilinx/zynqmp_pm_domains.c => genpd/xilinx/zynqmp-pm-domains.c} (100%)
 delete mode 100644 drivers/soc/bcm/bcm63xx/Kconfig
 delete mode 100644 drivers/soc/bcm/bcm63xx/Makefile
 delete mode 100644 drivers/soc/starfive/Makefile

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2.34.1