Commit Graph

2001 Commits

Author SHA1 Message Date
Stephen Boyd f684ff8b67 clk: rockchip: Properly include clk.h
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Only include clk.h if it's actually used.

Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 11:11:10 -07:00
Stephen Boyd 39482a1331 clk: nxp: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Acked-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 11:11:08 -07:00
Stephen Boyd bb0bf35452 clk: mxs: Include clk.h in C files that use it
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. The clk.h include is being included in all
mxs files because it's part of mxs/clk.h even though nothing
actually requires it in that file. Move the clk.h include to the
C files that are actually using it and remove the clk.h include
from the header file. The clkdev.h include isn't used either, so
drop it too.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 11:11:07 -07:00
Stephen Boyd db00c3e595 clk: mvebu: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Only include the header if necessary. The
clkdev.h include isn't used here either, so drop it and add in
slab.h to keep things compiling.

Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 11:10:40 -07:00
Stephen Boyd 528b76976f clk: mmp: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver. The clkdev.h include isn't used either, so drop
it and add in slab.h to keep things compiling.

Cc: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:12 -07:00
Stephen Boyd c0eb1dfffc clk: meson8b: Properly include clk.h
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Only include clk.h if it's actually used.

Cc: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:10 -07:00
Stephen Boyd c726639bbe clk: mediatek: Properly include clk.h
We don't need to include clk.h in header files, just forward
declare struct clk here. This leads us to a few places where the
include of clk.h was missing in C files. Add them.

Cc: James Liao <jamesjj.liao@mediatek.com>
Cc: Henry Chen <henryc.chen@mediatek.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:09 -07:00
Stephen Boyd 059a1aa7eb clk: keystone: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:08 -07:00
Stephen Boyd 593438e44c clk: hisilicon: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver. Also drop the clkdev.h include in files that
aren't using it.

Cc: Bintian Wang <bintian.wang@huawei.com>
Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:06 -07:00
Stephen Boyd 6063b663e8 clk: wm831x: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:05 -07:00
Stephen Boyd e266847013 clk: u300: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver. Also add in slab.h because without clkdev.h
compilation of this file would fail.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:04 -07:00
Stephen Boyd e873473cbc clk: twl6040: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:02 -07:00
Stephen Boyd 608f9b6e15 clk: si5351: Include clk.h
This clock provider uses the consumer API, so include clk.h
explicitly.

Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:01 -07:00
Stephen Boyd d74f864fec clk: rk808: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:00 -07:00
Stephen Boyd 39a3891576 clk: palmas: Remove clkdev.h includes
This driver includes clkdev.h even though it isn't used, so drop
it.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:58 -07:00
Stephen Boyd aa1a7fc4a9 clk: nomadik: Remove clk.h and clkdev.h includes
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver. This driver also includes clkdev.h even though
it isn't used, so drop it too and add slab.h to make sure
everything still compiles.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:57 -07:00
Stephen Boyd e715e2b1a6 clk: mux: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:56 -07:00
Stephen Boyd 893418e407 clk: efm32gg: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:54 -07:00
Stephen Boyd a87b6866a0 clk: clps711x: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:53 -07:00
Stephen Boyd fc1699c802 clk: cdce706: Include clk.h
This clock provider uses the consumer API, so include clk.h
explicitly.

Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:52 -07:00
Stephen Boyd a1ff4588d7 clk: axi-clkgen: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:50 -07:00
Stephen Boyd 663724f990 clk: i.MX: Remove clk.h include
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver.

Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:49 -07:00
Linus Torvalds 75462c8a87 Replace module_platform_driver with builtin_platform driver in non modules.
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Merge tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

Pull module_platform_driver replacement from Paul Gortmaker:
 "Replace module_platform_driver with builtin_platform driver in non
  modules.

  We see an increasing number of non-modular drivers using
  modular_driver() type register functions.  There are several downsides
  to letting this continue unchecked:

   - The code can appear modular to a reader of the code, and they won't
     know if the code really is modular without checking the Makefile
     and Kconfig to see if compilation is governed by a bool or
     tristate.

   - Coders of drivers may be tempted to code up an __exit function that
     is never used, just in order to satisfy the required three args of
     the modular registration function.

   - Non-modular code ends up including the <module.h> which increases
     CPP overhead that they don't need.

   - It hinders us from performing better separation of the module init
     code and the generic init code.

  So here we introduce similar macros for builtin drivers.  Then we
  convert builtin drivers (controlled by a bool Kconfig) by making the
  following type of mapping:

    module_platform_driver()       --->  builtin_platform_driver()
    module_platform_driver_probe() --->  builtin_platform_driver_probe().

  The set of drivers that are converted here are just the ones that
  showed up as relying on an implicit include of <module.h> during a
  pending header cleanup.  So we convert them here vs adding an include
  of <module.h> to non-modular code to avoid compile fails.  Additonal
  conversions can be done asynchronously at any time.

  Once again, an unused module_exit function that is removed here
  appears in the diffstat as an outlier wrt all the other changes"

* tag 'module-builtin_driver-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  drivers/clk: convert sunxi/clk-mod0.c to use builtin_platform_driver
  drivers/power: Convert non-modular syscon-reboot to use builtin_platform_driver
  drivers/soc: Convert non-modular soc-realview to use builtin_platform_driver
  drivers/soc: Convert non-modular tegra/pmc to use builtin_platform_driver
  drivers/cpufreq: Convert non-modular s5pv210-cpufreq.c to use builtin_platform_driver
  drivers/cpuidle: Convert non-modular drivers to use builtin_platform_driver
  drivers/platform: Convert non-modular pdev_bus to use builtin_platform_driver
  platform_device: better support builtin boilerplate avoidance
2015-07-02 10:42:13 -07:00
Linus Torvalds 2d4407079c Replace module_init with equivalent device_initcall in non modules.
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Merge tag 'module_init-device_initcall-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

Pull module_init replacement part one from Paul Gortmaker:
 "Replace module_init with equivalent device_initcall in non modules.

  This series of commits converts non-modular code that is using the
  module_init() call to hook itself into the system to instead use
  device_initcall().

  The conversion is a runtime no-op, since module_init actually becomes
  __initcall in the non-modular case, and that in turn gets mapped onto
  device_initcall.  A couple files show a larger negative diffstat,
  representing ones that had a module_exit function that we remove here
  vs previously relying on the linker to dispose of it.

  We make this conversion now, so that we can relocate module_init from
  init.h into module.h in the future.

  The files changed here are just limited to those that would otherwise
  have to add module.h to obviously non-modular code, in order to avoid
  a compile fail, as testing has shown"

* tag 'module_init-device_initcall-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  MIPS: don't use module_init in non-modular cobalt/mtd.c file
  drivers/leds: don't use module_init in non-modular leds-cobalt-raq.c
  cris: don't use module_init for non-modular core eeprom.c code
  tty/metag_da: Avoid module_init/module_exit in non-modular code
  drivers/clk: don't use module_init in clk-nomadik.c which is non-modular
  xtensa: don't use module_init for non-modular core network.c code
  sh: don't use module_init in non-modular psw.c code
  mn10300: don't use module_init in non-modular flash.c code
  parisc64: don't use module_init for non-modular core perf code
  parisc: don't use module_init for non-modular core pdc_cons code
  cris: don't use module_init for non-modular core intmem.c code
  ia64: don't use module_init in non-modular sim/simscsi.c code
  ia64: don't use module_init for non-modular core kernel/mca.c code
  arm: don't use module_init in non-modular mach-vexpress/spc.c code
  powerpc: don't use module_init in non-modular 83xx suspend code
  powerpc: use device_initcall for registering rtc devices
  x86: don't use module_init in non-modular devicetree.c code
  x86: don't use module_init in non-modular intel_mid_vrtc.c
2015-07-02 10:30:48 -07:00
Linus Torvalds 9d86b4128c Fix up implicit <module.h> users that will break later.
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Merge tag 'module-implicit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

Pull implicit module.h fixes from Paul Gortmaker:
 "Fix up implicit <module.h> users that will break later.

  The files changed here are simply modular source files that are
  implicitly relying on <module.h> being present.  We fix them up now,
  so that we can decouple some of the module related init code from the
  core init code in the future.

  The addition of the module.h include to several files here is also a
  no-op from a code generation point of view, else there would already
  be compile issues with these files today.

  There may be lots more implicit includes of <module.h> in tree, but
  these are the ones that extensive build test coverage has shown that
  must be fixed in order to avoid build breakage fallout for the pending
  module.h <---> init.h code relocation we desire to complete"

* tag 'module-implicit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  frv: add module.h to mb93090-mb00/flash.c to avoid compile fail
  drivers/cpufreq: include <module.h> for modular exynos-cpufreq.c code
  drivers/staging: include <module.h> for modular android tegra_ion code
  crypto/asymmetric_keys: pkcs7_key_type needs module.h
  sh: mach-highlander/psw.c is tristate and should use module.h
  drivers/regulator: include <module.h> for modular max77802 code
  drivers/pcmcia: include <module.h> for modular xxs1500_ss code
  drivers/hsi: include <module.h> for modular omap_ssi code
  drivers/gpu: include <module.h> for modular rockchip code
  drivers/gpio: include <module.h> for modular crystalcove code
  drivers/clk: include <module.h> for clk-max77xxx modular code
2015-07-02 10:25:22 -07:00
Linus Torvalds 5f1201d515 The changes to the common clock framework for 4.2 are dominated by new
drivers and updates to existing ones, as usual. There are some fixes to
 the framework itself and several cleanups for sparse warnings, etc.
 Please consider pulling.
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Merge tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clock framework updates from Michael Turquette:
 "The changes to the common clock framework for 4.2 are dominated by new
  drivers and updates to existing ones, as usual.

  There are some fixes to the framework itself and several cleanups for
  sparse warnings, etc"

* tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (135 commits)
  clk: stm32: Add clock driver for STM32F4[23]xxx devices
  dt-bindings: Document the STM32F4 clock bindings
  cpufreq: exynos: remove Exynos4210 specific cpufreq driver support
  ARM: Exynos: switch to using generic cpufreq driver for Exynos4210
  clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu clock
  clk: samsung: add infrastructure to register cpu clocks
  clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock support
  doc: dt: add documentation for lpc1850-ccu clk driver
  clk: add lpc18xx ccu clk driver
  doc: dt: add documentation for lpc1850-cgu clk driver
  clk: add lpc18xx cgu clk driver
  clk: keystone: add support for post divider register for main pll
  clk: mvebu: flag the crypto clk as CLK_IGNORE_UNUSED
  clk: cygnus: remove Cygnus dummy clock binding
  clk: cygnus: add clock support for Broadcom Cygnus
  clk: Change bcm clocks build dependency
  clk: iproc: add initial common clock support
  clk: iproc: define Broadcom iProc clock binding
  MAINTAINERS: update email for Michael Turquette
  clk: meson: add some error handling in meson_clk_register_cpu()
  ...
2015-07-01 19:22:00 -07:00
Linus Torvalds 78c10e556e Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:

 - Improvements to the tlb_dump code
 - KVM fixes
 - Add support for appended DTB
 - Minor improvements to the R12000 support
 - Minor improvements to the R12000 support
 - Various platform improvments for BCM47xx
 - The usual pile of minor cleanups
 - A number of BPF fixes and improvments
 - Some improvments to the support for R3000 and DECstations
 - Some improvments to the ATH79 platform support
 - A major patchset for the JZ4740 SOC adding support for the CI20 platform
 - Add support for the Pistachio SOC
 - Minor BMIPS/BCM63xx platform support improvments.
 - Avoid "SYNC 0" as memory barrier when unlocking spinlocks
 - Add support for the XWR-1750 board.
 - Paul's __cpuinit/__cpuinitdata cleanups.
 - New Malta CPU board support large memory so enable ZONE_DMA32.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
  MIPS: spinlock: Adjust arch_spin_lock back-off time
  MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
  MIPS: BCM47xx: Simplify handling SPROM revisions
  MIPS: Cobalt Don't use module_init in non-modular MTD registration.
  MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
  MIPS: use for_each_sg()
  MIPS: BCM47xx: Don't select BCMA_HOST_PCI
  MIPS: BCM47xx: Add helper variable for storing NVRAM length
  MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
  MIPS: Replace smp_mb with release barrier function in unlocks.
  MIPS: i8259: DT support
  MIPS: Malta: Basic DT plumbing
  MIPS: include errno.h for ENODEV in mips-cm.h
  MIPS: Define GCR_GIC_STATUS register fields
  MIPS: BPF: Introduce BPF ASM helpers
  MIPS: BPF: Use BPF register names to describe the ABI
  MIPS: BPF: Move register definition to the BPF header
  MIPS: net: BPF: Replace RSIZE with SZREG
  MIPS: BPF: Free up some callee-saved registers
  MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
  ...
2015-06-27 12:44:34 -07:00
Linus Torvalds f5dcb68086 ARM: SoC: driver updates for v4.2
Some of these are for drivers/soc, where we're now putting
 SoC-specific drivers these days. Some are for other driver subsystems
 where we have received acks from the appropriate maintainers.
 
 Some highlights:
 
 - simple-mfd: document DT bindings and misc updates
 - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
 - memory: support for Tegra132 SoC
 - memory: introduce tegra EMC driver for scaling memory frequency
 - misc. updates for ARM CCI and CCN busses
 
  Conflicts:
 	arch/arm64/boot/dts/arm/juno-motherboard.dtsi
 
  Trivial add/add conflict with our dt branch.
  Resolution: take both sides.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Kevin Hilman:
 "Some of these are for drivers/soc, where we're now putting
  SoC-specific drivers these days.  Some are for other driver subsystems
  where we have received acks from the appropriate maintainers.

  Some highlights:

   - simple-mfd: document DT bindings and misc updates
   - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
   - memory: support for Tegra132 SoC
   - memory: introduce tegra EMC driver for scaling memory frequency
   - misc. updates for ARM CCI and CCN busses"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  drivers: soc: sunxi: Introduce SoC driver to map SRAMs
  arm-cci: Add aliases for PMU events
  arm-cci: Add CCI-500 PMU support
  arm-cci: Sanitise CCI400 PMU driver specific code
  arm-cci: Abstract handling for CCI events
  arm-cci: Abstract out the PMU counter details
  arm-cci: Cleanup PMU driver code
  arm-cci: Do not enable CCI-400 PMU by default
  firmware: qcom: scm: Add HDCP Support
  ARM: berlin: add an ADC node for the BG2Q
  ARM: berlin: remove useless chip and system ctrl compatibles
  clk: berlin: drop direct of_iomap of nodes reg property
  ARM: berlin: move BG2Q clock node
  ARM: berlin: move BG2CD clock node
  ARM: berlin: move BG2 clock node
  clk: berlin: prepare simple-mfd conversion
  pinctrl: berlin: drop SoC stub provided regmap
  ARM: berlin: move pinctrl to simple-mfd nodes
  pinctrl: berlin: prepare to use regmap provided by syscon
  reset: berlin: drop arch_initcall initialization
  ...
2015-06-26 11:54:29 -07:00
Linus Torvalds 4aa705b18b ARM: SoC: platform support for v4.2
Our SoC branch usually contains expanded support for new SoCs and
 other core platform code. Some highlights from this round:
 
 - sunxi: SMP support for A23 SoC
 - socpga: big-endian support
 - pxa: conversion to common clock framework
 - bcm: SMP support for BCM63138
 - imx: support new I.MX7D SoC
 - zte: basic support for ZX296702 SoC
 
  Conflicts:
 	arch/arm/mach-socfpga/core.h
 
 Trivial remove/remove conflict with our cleanup branch.
 Resolution: remove both sides
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform support updates from Kevin Hilman:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  Some highlights from this round:

   - sunxi: SMP support for A23 SoC
   - socpga: big-endian support
   - pxa: conversion to common clock framework
   - bcm: SMP support for BCM63138
   - imx: support new I.MX7D SoC
   - zte: basic support for ZX296702 SoC"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
  ARM: zx: Add basic defconfig support for ZX296702
  ARM: dts: zx: add an initial zx296702 dts and doc
  clk: zx: add clock support to zx296702
  dt-bindings: Add #defines for ZTE ZX296702 clocks
  ARM: socfpga: fix build error due to secondary_startup
  MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
  ARM: ep93xx: simone: support for SPI-based MMC/SD cards
  MAINTAINERS: update Shawn's email to use kernel.org one
  ARM: socfpga: support suspend to ram
  ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
  ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
  ARM: EXYNOS: register power domain driver from core_initcall
  ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
  ARM: SAMSUNG: Constify platform_device_id
  ARM: EXYNOS: Constify irq_domain_ops
  ARM: EXYNOS: add coupled cpuidle support for Exynos3250
  ARM: EXYNOS: add exynos_get_boot_addr() helper
  ARM: EXYNOS: add exynos_set_boot_addr() helper
  ARM: EXYNOS: make exynos_core_restart() less verbose
  ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
  ...
2015-06-26 11:34:35 -07:00
Linus Torvalds 55a7d4b85c h8300 pull request for 4.2
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Merge tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux

Pull Renesas H8/300 architecture re-introduction from Yoshinori Sato.

We dropped arch/h8300 two years ago as stale and old, this is a new and
more modern rewritten arch support for the same architecture.

* tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux: (27 commits)
  h8300: fix typo.
  h8300: Always build dtb
  h8300: Remove ARCH_WANT_IPC_PARSE_VERSION
  sh-sci: Get register size from platform device
  clk: h8300: fix error handling in h8s2678_pll_clk_setup()
  h8300: Symbol name fix
  h8300: devicetree source
  h8300: configs
  h8300: IRQ chip driver
  h8300: clocksource
  h8300: clock driver
  h8300: Build scripts
  h8300: library functions
  h8300: Memory management
  h8300: miscellaneous functions
  h8300: process helpers
  h8300: compressed image support
  h8300: Low level entry
  h8300: kernel startup
  h8300: Interrupt and exceptions
  ...
2015-06-25 13:07:24 -07:00
Linus Torvalds e0456717e4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Add TX fast path in mac80211, from Johannes Berg.

 2) Add TSO/GRO support to ibmveth, from Thomas Falcon

 3) Move away from cached routes in ipv6, just like ipv4, from Martin
    KaFai Lau.

 4) Lots of new rhashtable tests, from Thomas Graf.

 5) Run ingress qdisc lockless, from Alexei Starovoitov.

 6) Allow servers to fetch TCP packet headers for SYN packets of new
    connections, for fingerprinting.  From Eric Dumazet.

 7) Add mode parameter to pktgen, for testing receive.  From Alexei
    Starovoitov.

 8) Cache access optimizations via simplifications of build_skb(), from
    Alexander Duyck.

 9) Move page frag allocator under mm/, also from Alexander.

10) Add xmit_more support to hv_netvsc, from KY Srinivasan.

11) Add a counter guard in case we try to perform endless reclassify
    loops in the packet scheduler.

12) Extern flow dissector to be programmable and use it in new "Flower"
    classifier.  From Jiri Pirko.

13) AF_PACKET fanout rollover fixes, performance improvements, and new
    statistics.  From Willem de Bruijn.

14) Add netdev driver for GENEVE tunnels, from John W Linville.

15) Add ingress netfilter hooks and filtering, from Pablo Neira Ayuso.

16) Fix handling of epoll edge triggers in TCP, from Eric Dumazet.

17) Add an ECN retry fallback for the initial TCP handshake, from Daniel
    Borkmann.

18) Add tail call support to BPF, from Alexei Starovoitov.

19) Add several pktgen helper scripts, from Jesper Dangaard Brouer.

20) Add zerocopy support to AF_UNIX, from Hannes Frederic Sowa.

21) Favor even port numbers for allocation to connect() requests, and
    odd port numbers for bind(0), in an effort to help avoid
    ip_local_port_range exhaustion.  From Eric Dumazet.

22) Add Cavium ThunderX driver, from Sunil Goutham.

23) Allow bpf programs to access skb_iif and dev->ifindex SKB metadata,
    from Alexei Starovoitov.

24) Add support for T6 chips in cxgb4vf driver, from Hariprasad Shenai.

25) Double TCP Small Queues default to 256K to accomodate situations
    like the XEN driver and wireless aggregation.  From Wei Liu.

26) Add more entropy inputs to flow dissector, from Tom Herbert.

27) Add CDG congestion control algorithm to TCP, from Kenneth Klette
    Jonassen.

28) Convert ipset over to RCU locking, from Jozsef Kadlecsik.

29) Track and act upon link status of ipv4 route nexthops, from Andy
    Gospodarek.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1670 commits)
  bridge: vlan: flush the dynamically learned entries on port vlan delete
  bridge: multicast: add a comment to br_port_state_selection about blocking state
  net: inet_diag: export IPV6_V6ONLY sockopt
  stmmac: troubleshoot unexpected bits in des0 & des1
  net: ipv4 sysctl option to ignore routes when nexthop link is down
  net: track link-status of ipv4 nexthops
  net: switchdev: ignore unsupported bridge flags
  net: Cavium: Fix MAC address setting in shutdown state
  drivers: net: xgene: fix for ACPI support without ACPI
  ip: report the original address of ICMP messages
  net/mlx5e: Prefetch skb data on RX
  net/mlx5e: Pop cq outside mlx5e_get_cqe
  net/mlx5e: Remove mlx5e_cq.sqrq back-pointer
  net/mlx5e: Remove extra spaces
  net/mlx5e: Avoid TX CQE generation if more xmit packets expected
  net/mlx5e: Avoid redundant dev_kfree_skb() upon NOP completion
  net/mlx5e: Remove re-assignment of wq type in mlx5e_enable_rq()
  net/mlx5e: Use skb_shinfo(skb)->gso_segs rather than counting them
  net/mlx5e: Static mapping of netdev priv resources to/from netdev TX queues
  net/mlx4_en: Use HW counters for rx/tx bytes/packets in PF device
  ...
2015-06-24 16:49:49 -07:00
Linus Torvalds 1a13e36a79 fbdev changes for 4.2
* ssd1307fb: various fixes and improvements, SSD1305 support
 * Use architecture agnostic functions instead of MTRR functions in various
   fbdev drivers
 * TI DRA7xx SoC display support (arch/arm/ side)
 * OMAPDSS componentization to fix probing order issues
 * OMAPDSS scaling fixes
 * msm_fb: remove obsoleted driver
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Merge tag 'fbdev-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev updates from Tomi Valkeinen:

 - ssd1307fb: various fixes and improvements, SSD1305 support

 - use architecture agnostic functions instead of MTRR functions in
   various fbdev drivers

 - TI DRA7xx SoC display support (arch/arm/ side)

 - OMAPDSS componentization to fix probing order issues

 - OMAPDSS scaling fixes

 - msm_fb: remove obsoleted driver

* tag 'fbdev-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (77 commits)
  msm: msm_fb: Remove dead code
  OMAPDSS: HDMI: wait for framedone when stopping video
  OMAPDSS: HDMI4: fix error handling
  OMAPDSS: DISPC: scaler debug print
  OMAPDSS: DISPC: do only y decimation on OMAP3
  OMAPDSS: DISPC: check if scaling setup failed
  OMAPDSS: DISPC: fix 64 bit issue in 5-tap
  OMAPDSS: DISPC: fix row_inc for OMAP3
  OMAPDSS: DISPC: add check for scaling limits
  OMAPDSS: DISPC: fix check_horiz_timing_omap3 args
  OMAPDSS: DISPC: fix predecimation for YUV modes
  OMAPDSS: DISPC: work-around for errata i631
  OMAPDSS: simplify submodule reg/unreg code
  OMAPDSS: componentize omapdss
  OMAPDSS: reorder uninit calls
  OMAPDSS: remove uses of __init/__exit
  OMAPDSS: fix dss_init_ports error handling
  OMAPDSS: refactor dss probe function
  OMAPDSS: move 'dss_initialized' to dss driver
  fbdev: propagate result of fb_videomode_from_videomode()
  ...
2015-06-23 16:23:30 -07:00
Linus Torvalds 2ad7b44f5d Merge branch 'for-linus-clk' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull clkdev updates from Russell King:
 "This series addresses some breakage in clkdev caused by a previous
  patch set from the clk tree which introduced per-user clk structures.
  This basically renamed the existing 'struct clk' to 'struct clk_hw',
  and introduced a new 'struct clk'.

  This change will break anyone using clk_add_alias() with the common
  clk code enabled.  Thankfully, the intersection of users of
  clk_add_alias() and those using the common clk code is practically
  zero, but this is something which should be fixed to keep the code
  sane.

  The problem is that clk_add_alias() does this:

        r = clk_get(...);
        l = clkdev_alloc(r, ...);
        clk_put(...);

  which causes the alias to store a pointer to 'r', which has been
  freed.

  The original patch set tried to work around this problem incorrectly -
  at clk_get() time, it tried to convert the struct clk to a struct
  clk_hw, and then creating a new struct clk from that.  Clearly, if the
  original struct clk has been freed, then we have a use-after-free bug.

  We have other places in the tree which do something similar, so this
  series also addresses those locations too.

  This series addresses this problem by converting clkdev to store and
  use the clk_hw pointer.  This allows clk_get() to only have to create
  it's per-user struct clk from the clk_hw.  We can also get to the
  desired clk_hw at clk_add_alias() or clk lookup creation time, when
  the struct clk is "alive".

  We also perform some cleanups of the code:

   - replacing looped calls to clkdev_add() with clkdev_add_table()

   - replacing open-coded lookup allocation (which should have been
     using clkdev_alloc()) and subsequent clkdev_add() with
     clkdev_create()

   - replacing open-coded clk_add_alias() with clk_add_alias()"

* 'for-linus-clk' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  clk: s2mps11: use clkdev_create()
  ASoC: migor: use clkdev_create()
  ARM: omap2: use clkdev_add_alias()
  ARM: omap2: use clkdev_create()
  ARM: orion: use clkdev_create()
  ARM: lpc32xx: convert to use clkdev_add_table()
  SH: use clkdev_add_table()
  clkdev: add clkdev_create() helper
  clkdev: const-ify connection id to clk_add_alias()
  clkdev: get rid of redundant clk_add_alias() prototype in linux/clk.h
  clkdev: drop __init from clkdev_add_table()
  clk: update clk API documentation to clarify clk_round_rate()
  clkdev: use clk_hw internally
2015-06-23 15:50:46 -07:00
Dan Carpenter ded515a4d5 clk: h8300: fix error handling in h8s2678_pll_clk_setup()
The error handling was a bit messy and buggy.  It freed "pll_clock" then
dereferenced it, and then freed it again.  I've re-written it in normal
kernel style.

Fixes: 42ff8e8008c8 ('h8300: clock driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
2015-06-23 13:35:58 +09:00
Yoshinori Sato 7b5bb891a6 h8300: clock driver
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
2015-06-23 13:35:55 +09:00
Daniel Thompson 358bdf892f clk: stm32: Add clock driver for STM32F4[23]xxx devices
The driver supports decoding and statically modelling PLL state (i.e.
we inherit state from bootloader) and provides support for all
peripherals that support simple one-bit gated clocks. The covers all
peripherals whose clocks come from the AHB, APB1 or APB2 buses.

It has been tested on an STM32F429I-Discovery board. The clock counts
for TIM2, USART1 and SYSTICK are all set correctly and the wall clock
looks OK when checked with a stopwatch. I have also tested a prototype
driver for the RNG hardware. The RNG clock is correctly enabled by the
framework (also did inverse test and proved that by changing DT to
configure the wrong clock bit then we observe the RNG driver to fail).

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
[sboyd@codeaurora.org: Silence sparse warnings]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-22 16:17:01 -07:00
Huacai Chen 30ad29bb48 MIPS: Loongson: Naming style cleanup and rework
Currently, code of Loongson-2/3 is under loongson directory and code of
Loongson-1 is under loongson1 directory. Besides, there are Kconfig
options such as MACH_LOONGSON and MACH_LOONGSON1. This naming style is
very ugly and confusing. Since Loongson-2/3 are both 64-bit general-
purpose CPU while Loongson-1 is 32-bit SoC, we rename both file names
and Kconfig symbols from loongson/loongson1 to loongson64/loongson32.

[ralf@linux-mips.org: Resolve a number of simple conflicts.]

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: Kelvin Cheung <keguang.zhang@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/9790/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:59 +02:00
Paul Burton 29136ad581 clk: ingenic: add JZ4780 CGU support
Add support for the clocks provided by the CGU in the Ingenic JZ4780
SoC, making use of the SoC-agnostic CGU code to do the heavy lifting.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Co-authored-by: Paul Cercueil <paul@crapouillou.net>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10157/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:20 +02:00
Paul Burton 50d893ff72 MIPS, clk: move jz4740 clock suspend, resume functions to jz4740-cgu
The jz4740-cgu driver already has access to the CGU, so it makes sense
to move the few remaining accesses to the CGU from arch/mips/jz4740
there too. Move the jz4740_clock_{suspend,resume} functions there for
such consistency. The arch/mips/jz4740/clock.c file now contains nothing
more of use & so is removed.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10158/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:19 +02:00
Paul Burton ed286ca5d6 MIPS, clk: move jz4740 UDC auto suspend functions to jz4740-cgu
The jz4740-cgu driver already has access to the CGU, so it makes sense
to move the few remaining accesses to the CGU from arch/mips/jz4740
there too. Move the jz4740_clock_udc_{dis,en}able_auto_suspend functions
there for such consistency.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10154/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:18 +02:00
Paul Burton 41dd641e9a MIPS,clk: move jz4740_clock_set_wait_mode to jz4740-cgu
The jz4740-cgu driver already has access to the CGU, so it makes sense
to move the few remaining accesses to the CGU from arch/mips/jz4740
there too. Move jz4740_clock_set_wait_mode for such consistency.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10153/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:17 +02:00
Paul Burton ff1930c6bd MIPS,clk: migrate JZ4740 to common clock framework
Migrate the JZ4740 & the qi_lb60 board to use common clock framework
via the new Ingenic SoC CGU driver. Note that the JZ4740-specific
debugfs code is removed since common clock framework provides its own
debug capabilities.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Co-authored-by: Paul Cercueil <paul@crapouillou.net>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: devicetree@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-kernel@vger.kernel.org
Cc: Brian Norris <computersforpeace@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/10151/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:15 +02:00
Paul Burton b066303fb3 clk: ingenic: add driver for Ingenic SoC CGU clocks
This driver supports the CGU clocks for Ingenic SoCs. It is generic
enough to be usable across at least the JZ4740 to the JZ4780, and will
be made use of on such devices in subsequent commits. This patch by
itself only adds the SoC-agnostic infrastructure that forms the bulk of
the CGU driver for the aforementioned further commits to make use of.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Co-authored-by: Paul Cercueil <paul@crapouillou.net>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10150/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:15 +02:00
Michael Turquette 2cd7b04328 clk: tegra: Changes for v4.2-rc1
This contains the EMC clock driver that's been exhaustively reviewed and
 tested. It also includes a change to the clock core that allows a clock
 provider to perform low-level reparenting of clocks. This is required by
 the EMC clock driver because the reparenting needs to be done at a very
 specific point in time during the EMC frequency switch.
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Merge tag 'tegra-for-4.2-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next

clk: tegra: Changes for v4.2-rc1

This contains the EMC clock driver that's been exhaustively reviewed and
tested. It also includes a change to the clock core that allows a clock
provider to perform low-level reparenting of clocks. This is required by
the EMC clock driver because the reparenting needs to be done at a very
specific point in time during the EMC frequency switch.
2015-06-20 13:29:48 -07:00
Michael Turquette 85e88fab13 Merge branch 'clk-exynos-cpu-clk' into clk-next
Folded into this merge commit is a build error fix: s/clk/core in
clk_change_rate due to the new struct clk_core
2015-06-20 13:26:40 -07:00
Thomas Abraham 6ae5a0b46f clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu clock
With the addition of the new Samsung specific cpu-clock type, the
arm clock can be represented as a cpu-clock type. Add the CPU clock
configuration data and instantiate the CPU clock type for Exynos4210.

Changes by Bartlomiej:
- fixed issue with wrong dividers being setup by Common Clock Framework
  (by an addition of CLK_RECALC_NEW_RATES clock flag to mout_apll clock,
  without this change cpufreq-dt driver showed ~10 mA larger energy
  consumption when compared to cpufreq-exynos one when "performance"
  cpufreq governor was used on Exynos4210 SoC based Origen board), this
  was probably meant to be workarounded by use of CLK_GET_RATE_NOCACHE
  and CLK_DIVIDER_READ_ONLY clock flags in the original patchset (in
  "[PATCH v12 6/6] clk: samsung: remove unused clock aliases and update
  clock flags") but using these flags is not sufficient to fix the issue
  observed
- removed Exynos5250 and Exynos5420 support for now

Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2015-06-20 12:17:42 -07:00
Thomas Abraham ddeac8d968 clk: samsung: add infrastructure to register cpu clocks
The CPU clock provider supplies the clock to the CPU clock domain. The
composition and organization of the CPU clock provider could vary among
Exynos SoCs. A CPU clock provider can be composed of clock mux, dividers
and gates. This patch defines a new clock type for CPU clock provider and
adds infrastructure to register the CPU clock providers for Samsung
platforms.

Changes by Bartlomiej:
- fixed issue with setting lower dividers before the parent clock speed
  was lowered (the issue resulted in lockup on Exynos4210 SoC based
  Origen board when "ondemand" cpufreq governor was stress tested)
- fixed missing spin_unlock on error in exynos_cpuclk_post_rate_change()
  problem by moving cfg_data search outside of the spin locked area
- removed leftover kfree() in exynos_register_cpu_clock() that could
  result in dereferencing the NULL pointer on error
- moved spin_lock earlier in exynos_cpuclk_pre_rate_change() to cover
  reading of E4210_SRC_CPU and E4210_DIV_CPU1 registers
- added missing "last chance" checks to wait_until_divider_stable() and
  wait_until_mux_stable() (needed in case that IRQ handling took long
  time to proceed and resulted in function printing incorrect error
  message about timeout)
- moved E4210_CPU_DIV[0,1]() macros just before their only users,
  this resulted in moving them from patch #2 to patch #3/6 ("clk:
  samsung: exynos4: add cpu clock configuration data and instantiate
  cpu clock")
- removed E5250_CPU_DIV[0,1](), E5420_EGL_DIV0() and E5420_KFC_DIV()
  macros for now
- added my Copyrights to drivers/clk/samsung/clk-cpu.c

Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2015-06-20 12:17:42 -07:00
Bartlomiej Zolnierkiewicz d8d919879e clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock support
This flag is needed to fix the issue with wrong dividers being setup
by Common Clock Framework when using the new Exynos cpu clock support.

The issue happens because clk_core_set_rate_nolock()  calls
clk_calc_new_rates(clk, rate) before both pre/post clock notifiers have
a chance to run.  In case of Exynos cpu clock support pre/post clock
notifiers are registered for mout_apll clock which is a parent of armclk
cpu clock and dividers are modified in both pre and post clock notifier.
This results in wrong dividers values being later programmed by
clk_change_rate(top).  To workaround the problem CLK_RECALC_NEW_RATES
flag is added and it is set for mout_apll clock later so the correct
divider values are re-calculated after both pre and post clock notifiers
had run.

For example when using "performance" governor on Exynos4210 Origen board
the cpufreq-dt driver requests to change the frequency from 1000MHz to
1200MHz and after the change state of the relevant clocks is following:

Without use of CLK_GET_RATE_NOCACHE flag:

 fout_apll rate: 1200000000
         fout_apll_div_2 rate: 600000000
                 mout_clkout_cpu rate: 600000000
                         div_clkout_cpu rate: 600000000
                                 clkout_cpu rate: 600000000
         mout_apll rate: 1200000000
                 armclk rate: 1200000000
                 mout_hpm rate: 1200000000
                         div_copy rate: 300000000
                                 div_hpm rate: 300000000
                 mout_core rate: 1200000000
                         div_core rate: 1200000000
                                 div_core2 rate: 1200000000
                                         arm_clk_div_2 rate: 600000000
                                         div_corem0 rate: 300000000
                                         div_corem1 rate: 150000000
                                         div_periph rate: 300000000
                         div_atb rate: 300000000
                                 div_pclk_dbg rate: 150000000
                 sclk_apll rate: 1200000000
                         sclk_apll_div_2 rate: 600000000

With use of CLK_GET_RATE_NOCACHE flag:

 fout_apll rate: 1200000000
         fout_apll_div_2 rate: 600000000
                 mout_clkout_cpu rate: 600000000
                         div_clkout_cpu rate: 600000000
                                 clkout_cpu rate: 600000000
         mout_apll rate: 1200000000
                 armclk rate: 1200000000
                 mout_hpm rate: 1200000000
                         div_copy rate: 200000000
                                 div_hpm rate: 200000000
                 mout_core rate: 1200000000
                         div_core rate: 1200000000
                                 div_core2 rate: 1200000000
                                         arm_clk_div_2 rate: 600000000
                                         div_corem0 rate: 300000000
                                         div_corem1 rate: 150000000
                                         div_periph rate: 300000000
                         div_atb rate: 240000000
                                 div_pclk_dbg rate: 120000000
                 sclk_apll rate: 150000000
                         sclk_apll_div_2 rate: 75000000

Without this change cpufreq-dt driver showed ~10 mA larger energy
consumption when compared to cpufreq-exynos one when "performance"
cpufreq governor was used on Exynos4210 SoC based Origen board.

This issue was probably meant to be workarounded by use of
CLK_GET_RATE_NOCACHE and CLK_DIVIDER_READ_ONLY clock flags in
the original Exynos cpu clock patchset (in "[PATCH v12 6/6] clk:
samsung: remove unused clock aliases and update clock flags" patch)
but usage of these flags is not sufficient to fix the issue observed.

Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2015-06-20 12:17:41 -07:00
Michael Turquette 909aa10e6d Merge branch 'ccf/atmel-fixes-for-4.1' of https://github.com/bbrezillon/linux-at91 into clk-fixes 2015-06-19 07:37:14 -07:00
Nicolas Ferre 28df9c2fb6 clk: at91: fix h32mx prototype inclusion in pmc header
Trivial fix that prevents to compile this pmc clock driver if h32mx clock is
present but smd clock isn't.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Fixes: bcc5fd49a0 ("clk: at91: add a driver for the h32mx clock")
Cc: <stable@vger.kernel.org> # 3.18+
2015-06-19 15:48:34 +02:00