[PATCH v12 00/10] Per-user clock constraints
Tomeu Vizoso
tomeu.vizoso at collabora.com
Mon Sep 22 07:12:02 PDT 2014
Hello,
my branch was finally processed by the 0day build farm and I have fixed the
three issues that came up:
* export __clk_get and __clk_put, so they can be used by clock implementations
in modules that previously used clk_get and clk_put.
* export the new function of_clk_provider_get.
* don't process drivers/clk/mxs/clk-ssp.c with the Cocci script, as the only
function that is there is to be called by clock consumers (and thus operates on
a per-user clk struct).
As the previous version, this is based on top of 3.17-rc4 and Mike's patch at
[0].
Follows the original cover letter blurb:
I'm retaking Rabin's patches [1] for splitting the clk API in two: one API for
clk consumers and another for providers. The consumer API uses a clk structure
that just keeps track of the consumer and has a reference to the actual
clk_core struct, which is used internally.
I have kept a patch from Rabin that aims to aid in debugging nested
enable/disable calls, though my personal aim is to allow more than one consumer
to influence the final, effective frequency rate. For now this is limited to
setting floor and ceiling constraints, with the short-term aim of allowing
devfreq and thermal drivers to set floor and ceiling frequencies on the memory
clock, respectively.
For those functions in the consumer clk API that were called from providers, I
have added variants to clk-provider.h that are the same only that accept a
clk_core instead. These functions are prefixed with clk_provider_.
Patch 1/10 just exports two symbols and 2/10 just adds a bunch of defines with
the goal of having all the renames in their own commit while preserving
git-bisectability, with patch 3/10 containing the rename itself as generated by
the Coccinelle script in [2]. The actual implementation of the API split comes
in patch 4/10. I will be happy to organize the refactoring differently if
anybody has a better idea.
Patch 5/10 warns when there's an unbalanced usage of the enable and disable
APIs, and patch 6/10 adds the API for setting floor and ceiling frequencies,
per consumer. Patch 7/10 will warn when prepare/unprepare are used unbalanced,
printing the code location of the last call to unprepare.
Patches 8/10 and 9/10 add some locking when manipulating shared structures and
10/10 adds a bit to the API docs.
[0] http://permalink.gmane.org/gmane.linux.kernel/1782807
[1] http://thread.gmane.org/gmane.linux.kernel/1402006
[2] http://cgit.collabora.com/git/user/tomeu/linux.git/log/?h=clk-refactoring-12
Thanks,
Tomeu
Tomeu Vizoso (10):
clk: Export __clk_put and __clk_get so they can be used by modules
clk: Add temporary mapping to the existing API
clk: Move all drivers to use internal API
clk: use struct clk only for external API
clk: per-user clock accounting for debug
clk: Add floor and ceiling constraints to clock rates
clk: Warn of unbalanced clk_prepare() calls
clk: Take the prepare lock when updating the list of per-user clks
clk: Take the prepare lock when updating the per-user constraints
clk: Add docs about calling clk_put after clk_get_parent
arch/arm/mach-dove/common.c | 10 +-
arch/arm/mach-imx/clk-busy.c | 9 +-
arch/arm/mach-imx/clk-fixup-div.c | 4 +-
arch/arm/mach-imx/clk-fixup-mux.c | 4 +-
arch/arm/mach-imx/clk-gate2.c | 4 +-
arch/arm/mach-imx/clk-imx1.c | 3 +-
arch/arm/mach-imx/clk-imx21.c | 3 +-
arch/arm/mach-imx/clk-imx25.c | 9 +-
arch/arm/mach-imx/clk-imx27.c | 5 +-
arch/arm/mach-imx/clk-imx31.c | 11 +-
arch/arm/mach-imx/clk-imx35.c | 23 +-
arch/arm/mach-imx/clk-imx51-imx53.c | 78 +--
arch/arm/mach-imx/clk-imx6q.c | 54 +-
arch/arm/mach-imx/clk-imx6sl.c | 14 +-
arch/arm/mach-imx/clk-imx6sx.c | 98 ++--
arch/arm/mach-imx/clk-pfd.c | 5 +-
arch/arm/mach-imx/clk-pllv1.c | 5 +-
arch/arm/mach-imx/clk-pllv2.c | 5 +-
arch/arm/mach-imx/clk-pllv3.c | 5 +-
arch/arm/mach-imx/clk-vf610.c | 43 +-
arch/arm/mach-imx/clk.c | 11 +-
arch/arm/mach-imx/clk.h | 42 +-
arch/arm/mach-msm/clock-pcom.c | 2 +-
arch/arm/mach-msm/clock.c | 2 +-
arch/arm/mach-mv78xx0/common.c | 2 +-
arch/arm/mach-omap2/board-cm-t35.c | 2 +-
arch/arm/mach-omap2/cclock3xxx_data.c | 371 +++++++------
arch/arm/mach-omap2/clkt2xxx_dpll.c | 5 +-
arch/arm/mach-omap2/clkt2xxx_dpllcore.c | 5 +-
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 11 +-
arch/arm/mach-omap2/clkt34xx_dpll3m2.c | 3 +-
arch/arm/mach-omap2/clkt_clksel.c | 46 +-
arch/arm/mach-omap2/clkt_dpll.c | 8 +-
arch/arm/mach-omap2/clock.c | 52 +-
arch/arm/mach-omap2/clock.h | 18 +-
arch/arm/mach-omap2/clock3xxx.c | 23 +-
arch/arm/mach-omap2/clock3xxx.h | 4 +-
arch/arm/mach-omap2/clock_common_data.c | 2 +-
arch/arm/mach-omap2/clockdomain.c | 9 +-
arch/arm/mach-omap2/clockdomain.h | 4 +-
arch/arm/mach-omap2/display.c | 6 +-
arch/arm/mach-omap2/dpll3xxx.c | 29 +-
arch/arm/mach-omap2/dpll44xx.c | 5 +-
arch/arm/mach-omap2/mcbsp.c | 5 +-
arch/arm/mach-omap2/omap_device.c | 10 +-
arch/arm/mach-omap2/omap_hwmod.c | 42 +-
arch/arm/mach-omap2/omap_hwmod.h | 12 +-
arch/arm/mach-omap2/pm24xx.c | 12 +-
arch/arm/mach-orion5x/common.c | 2 +-
arch/arm/mach-shmobile/clock.c | 10 +-
arch/arm/mach-vexpress/spc.c | 4 +-
arch/arm/plat-orion/common.c | 22 +-
arch/arm/plat-orion/include/plat/common.h | 12 +-
arch/mips/alchemy/common/clock.c | 42 +-
arch/powerpc/platforms/512x/clock-commonclk.c | 48 +-
drivers/acpi/acpi_lpss.c | 7 +-
drivers/clk/at91/clk-main.c | 24 +-
drivers/clk/at91/clk-master.c | 6 +-
drivers/clk/at91/clk-peripheral.c | 12 +-
drivers/clk/at91/clk-pll.c | 6 +-
drivers/clk/at91/clk-plldiv.c | 6 +-
drivers/clk/at91/clk-programmable.c | 10 +-
drivers/clk/at91/clk-slow.c | 24 +-
drivers/clk/at91/clk-smd.c | 6 +-
drivers/clk/at91/clk-system.c | 6 +-
drivers/clk/at91/clk-usb.c | 18 +-
drivers/clk/at91/clk-utmi.c | 6 +-
drivers/clk/bcm/clk-kona-setup.c | 6 +-
drivers/clk/bcm/clk-kona.c | 12 +-
drivers/clk/bcm/clk-kona.h | 2 +-
drivers/clk/berlin/berlin2-avpll.c | 4 +-
drivers/clk/berlin/berlin2-avpll.h | 4 +-
drivers/clk/berlin/berlin2-div.c | 2 +-
drivers/clk/berlin/berlin2-div.h | 2 +-
drivers/clk/berlin/berlin2-pll.c | 2 +-
drivers/clk/berlin/berlin2-pll.h | 2 +-
drivers/clk/berlin/bg2.c | 14 +-
drivers/clk/berlin/bg2q.c | 10 +-
drivers/clk/clk-axi-clkgen.c | 3 +-
drivers/clk/clk-axm5516.c | 4 +-
drivers/clk/clk-bcm2835.c | 2 +-
drivers/clk/clk-clps711x.c | 3 +-
drivers/clk/clk-composite.c | 11 +-
drivers/clk/clk-conf.c | 18 +-
drivers/clk/clk-devres.c | 31 ++
drivers/clk/clk-divider.c | 8 +-
drivers/clk/clk-efm32gg.c | 3 +-
drivers/clk/clk-fixed-factor.c | 6 +-
drivers/clk/clk-fixed-rate.c | 8 +-
drivers/clk/clk-fractional-divider.c | 4 +-
drivers/clk/clk-gate.c | 4 +-
drivers/clk/clk-highbank.c | 8 +-
drivers/clk/clk-ls1x.c | 16 +-
drivers/clk/clk-max77686.c | 10 +-
drivers/clk/clk-moxart.c | 8 +-
drivers/clk/clk-mux.c | 7 +-
drivers/clk/clk-nomadik.c | 15 +-
drivers/clk/clk-nspire.c | 4 +-
drivers/clk/clk-palmas.c | 7 +-
drivers/clk/clk-ppc-corenet.c | 8 +-
drivers/clk/clk-s2mps11.c | 6 +-
drivers/clk/clk-si5351.c | 17 +-
drivers/clk/clk-si570.c | 4 +-
drivers/clk/clk-twl6040.c | 3 +-
drivers/clk/clk-u300.c | 13 +-
drivers/clk/clk-vt8500.c | 4 +-
drivers/clk/clk-wm831x.c | 7 +-
drivers/clk/clk-xgene.c | 12 +-
drivers/clk/clk.c | 743 +++++++++++++++++---------
drivers/clk/clk.h | 12 +-
drivers/clk/clkdev.c | 131 ++++-
drivers/clk/hisilicon/clk-hi3620.c | 9 +-
drivers/clk/hisilicon/clk-hip04.c | 1 -
drivers/clk/hisilicon/clk.c | 17 +-
drivers/clk/hisilicon/clk.h | 2 +-
drivers/clk/hisilicon/clkgate-separated.c | 5 +-
drivers/clk/keystone/gate.c | 7 +-
drivers/clk/keystone/pll.c | 11 +-
drivers/clk/mmp/clk-apbc.c | 5 +-
drivers/clk/mmp/clk-apmu.c | 5 +-
drivers/clk/mmp/clk-frac.c | 4 +-
drivers/clk/mmp/clk-mmp2.c | 14 +-
drivers/clk/mmp/clk-pxa168.c | 12 +-
drivers/clk/mmp/clk-pxa910.c | 12 +-
drivers/clk/mmp/clk.h | 8 +-
drivers/clk/mvebu/clk-corediv.c | 4 +-
drivers/clk/mvebu/clk-cpu.c | 8 +-
drivers/clk/mvebu/common.c | 15 +-
drivers/clk/mxs/clk-div.c | 5 +-
drivers/clk/mxs/clk-frac.c | 5 +-
drivers/clk/mxs/clk-imx23.c | 5 +-
drivers/clk/mxs/clk-imx28.c | 5 +-
drivers/clk/mxs/clk-pll.c | 5 +-
drivers/clk/mxs/clk-ref.c | 5 +-
drivers/clk/mxs/clk.h | 17 +-
drivers/clk/qcom/clk-rcg.c | 8 +-
drivers/clk/qcom/clk-rcg2.c | 14 +-
drivers/clk/qcom/clk-regmap.c | 2 +-
drivers/clk/qcom/clk-regmap.h | 2 +-
drivers/clk/qcom/common.c | 6 +-
drivers/clk/qcom/gcc-apq8084.c | 2 +-
drivers/clk/qcom/gcc-ipq806x.c | 2 +-
drivers/clk/qcom/gcc-msm8660.c | 2 +-
drivers/clk/qcom/gcc-msm8960.c | 2 +-
drivers/clk/qcom/gcc-msm8974.c | 2 +-
drivers/clk/qcom/mmcc-msm8960.c | 6 +-
drivers/clk/rockchip/clk-pll.c | 9 +-
drivers/clk/rockchip/clk-rk3188.c | 2 +-
drivers/clk/rockchip/clk-rk3288.c | 2 +-
drivers/clk/rockchip/clk-rockchip.c | 2 +-
drivers/clk/rockchip/clk.c | 15 +-
drivers/clk/rockchip/clk.h | 5 +-
drivers/clk/samsung/clk-exynos-audss.c | 16 +-
drivers/clk/samsung/clk-exynos-clkout.c | 9 +-
drivers/clk/samsung/clk-exynos3250.c | 1 -
drivers/clk/samsung/clk-exynos4.c | 7 +-
drivers/clk/samsung/clk-exynos5250.c | 1 -
drivers/clk/samsung/clk-exynos5260.c | 1 -
drivers/clk/samsung/clk-exynos5410.c | 1 -
drivers/clk/samsung/clk-exynos5420.c | 1 -
drivers/clk/samsung/clk-exynos5440.c | 1 -
drivers/clk/samsung/clk-pll.c | 6 +-
drivers/clk/samsung/clk-pll.h | 2 +-
drivers/clk/samsung/clk-s3c2410-dclk.c | 30 +-
drivers/clk/samsung/clk-s3c2410.c | 1 -
drivers/clk/samsung/clk-s3c2412.c | 1 -
drivers/clk/samsung/clk-s3c2443.c | 1 -
drivers/clk/samsung/clk-s3c64xx.c | 1 -
drivers/clk/samsung/clk-s5pv210-audss.c | 16 +-
drivers/clk/samsung/clk-s5pv210.c | 1 -
drivers/clk/samsung/clk.c | 22 +-
drivers/clk/samsung/clk.h | 3 +-
drivers/clk/shmobile/clk-div6.c | 2 +-
drivers/clk/shmobile/clk-emev2.c | 4 +-
drivers/clk/shmobile/clk-mstp.c | 6 +-
drivers/clk/shmobile/clk-r8a7740.c | 6 +-
drivers/clk/shmobile/clk-r8a7779.c | 6 +-
drivers/clk/shmobile/clk-rcar-gen2.c | 10 +-
drivers/clk/shmobile/clk-rz.c | 6 +-
drivers/clk/sirf/clk-atlas6.c | 3 +-
drivers/clk/sirf/clk-common.c | 30 +-
drivers/clk/sirf/clk-prima2.c | 3 +-
drivers/clk/socfpga/clk-gate.c | 3 +-
drivers/clk/socfpga/clk-periph.c | 3 +-
drivers/clk/socfpga/clk-pll.c | 5 +-
drivers/clk/spear/clk-aux-synth.c | 8 +-
drivers/clk/spear/clk-frac-synth.c | 4 +-
drivers/clk/spear/clk-gpt-synth.c | 4 +-
drivers/clk/spear/clk-vco-pll.c | 8 +-
drivers/clk/spear/clk.h | 14 +-
drivers/clk/spear/spear1310_clock.c | 3 +-
drivers/clk/spear/spear1340_clock.c | 3 +-
drivers/clk/spear/spear3xx_clock.c | 17 +-
drivers/clk/spear/spear6xx_clock.c | 3 +-
drivers/clk/st/clk-flexgen.c | 12 +-
drivers/clk/st/clkgen-fsyn.c | 22 +-
drivers/clk/st/clkgen-mux.c | 32 +-
drivers/clk/st/clkgen-pll.c | 34 +-
drivers/clk/sunxi/clk-a10-hosc.c | 2 +-
drivers/clk/sunxi/clk-a20-gmac.c | 2 +-
drivers/clk/sunxi/clk-factors.c | 4 +-
drivers/clk/sunxi/clk-sun6i-apb0-gates.c | 2 +-
drivers/clk/sunxi/clk-sun6i-apb0.c | 2 +-
drivers/clk/sunxi/clk-sun6i-ar100.c | 6 +-
drivers/clk/sunxi/clk-sun8i-apb0.c | 2 +-
drivers/clk/sunxi/clk-sunxi.c | 18 +-
drivers/clk/tegra/clk-audio-sync.c | 4 +-
drivers/clk/tegra/clk-divider.c | 5 +-
drivers/clk/tegra/clk-periph-gate.c | 5 +-
drivers/clk/tegra/clk-periph.c | 9 +-
drivers/clk/tegra/clk-pll-out.c | 5 +-
drivers/clk/tegra/clk-pll.c | 41 +-
drivers/clk/tegra/clk-super.c | 5 +-
drivers/clk/tegra/clk-tegra-audio.c | 5 +-
drivers/clk/tegra/clk-tegra-fixed.c | 9 +-
drivers/clk/tegra/clk-tegra-periph.c | 13 +-
drivers/clk/tegra/clk-tegra-pmc.c | 5 +-
drivers/clk/tegra/clk-tegra-super-gen4.c | 9 +-
drivers/clk/tegra/clk-tegra114.c | 11 +-
drivers/clk/tegra/clk-tegra124.c | 7 +-
drivers/clk/tegra/clk-tegra20.c | 13 +-
drivers/clk/tegra/clk-tegra30.c | 9 +-
drivers/clk/tegra/clk.c | 25 +-
drivers/clk/tegra/clk.h | 38 +-
drivers/clk/ti/apll.c | 8 +-
drivers/clk/ti/clk-2xxx.c | 8 +-
drivers/clk/ti/clk-33xx.c | 18 +-
drivers/clk/ti/clk-3xxx.c | 8 +-
drivers/clk/ti/clk-43xx.c | 8 +-
drivers/clk/ti/clk-44xx.c | 16 +-
drivers/clk/ti/clk-54xx.c | 25 +-
drivers/clk/ti/clk-7xx.c | 28 +-
drivers/clk/ti/clk-dra7-atl.c | 6 +-
drivers/clk/ti/clk.c | 2 +-
drivers/clk/ti/clockdomain.c | 4 +-
drivers/clk/ti/composite.c | 2 +-
drivers/clk/ti/divider.c | 6 +-
drivers/clk/ti/dpll.c | 8 +-
drivers/clk/ti/fixed-factor.c | 2 +-
drivers/clk/ti/gate.c | 2 +-
drivers/clk/ti/interface.c | 2 +-
drivers/clk/ti/mux.c | 6 +-
drivers/clk/ux500/abx500-clk.c | 3 +-
drivers/clk/ux500/clk-prcc.c | 8 +-
drivers/clk/ux500/clk-prcmu.c | 16 +-
drivers/clk/ux500/clk-sysctrl.c | 10 +-
drivers/clk/ux500/clk.h | 23 +-
drivers/clk/ux500/u8500_clk.c | 3 +-
drivers/clk/ux500/u8500_of_clk.c | 13 +-
drivers/clk/ux500/u8540_clk.c | 3 +-
drivers/clk/ux500/u9540_clk.c | 1 -
drivers/clk/versatile/clk-icst.c | 5 +-
drivers/clk/versatile/clk-icst.h | 2 +-
drivers/clk/versatile/clk-impd1.c | 19 +-
drivers/clk/versatile/clk-realview.c | 3 +-
drivers/clk/versatile/clk-sp810.c | 30 +-
drivers/clk/versatile/clk-versatile.c | 3 +-
drivers/clk/versatile/clk-vexpress-osc.c | 2 +-
drivers/clk/versatile/clk-vexpress.c | 6 +-
drivers/clk/x86/clk-lpt.c | 3 +-
drivers/clk/zynq/clkc.c | 22 +-
drivers/clk/zynq/pll.c | 4 +-
drivers/gpu/drm/msm/hdmi/hdmi_phy_8960.c | 3 +-
drivers/media/platform/exynos4-is/media-dev.c | 18 +-
drivers/media/platform/exynos4-is/media-dev.h | 7 +-
drivers/media/platform/omap3isp/isp.h | 2 +-
drivers/rtc/rtc-hym8563.c | 4 +-
drivers/staging/imx-drm/imx-tve.c | 27 +-
include/linux/clk-private.h | 51 +-
include/linux/clk-provider.h | 137 +++--
include/linux/clk.h | 53 +-
include/linux/clk/ti.h | 10 +-
include/linux/clk/zynq.h | 3 +-
include/linux/clkdev.h | 24 +-
include/linux/platform_data/clk-lpss.h | 2 +-
include/linux/platform_data/si5351.h | 4 +-
sound/soc/mxs/mxs-saif.c | 4 +-
277 files changed, 2313 insertions(+), 1878 deletions(-)
--
1.9.3
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