Commit Graph

131 Commits

Author SHA1 Message Date
Olof Johansson 11b35a3525 Third Round of Renesas ARM Based SoC DT Updates for v3.14
* r8a7791 (R-Car M2) and r8a7790 (R-Car H2) SoCSs
   - Add SSI, QSPI and MSIOF  clocks in device tree
 
 r8a7791 (R-Car M2) based Koelsch and r8a7790 (R-Car H2) based Lager boards
   - Remove reference DTS
   - Specify external clock frequency in DT
   - Sync non-reference DTS with referene DTS
   - Add clocks to DTS
 
 * r8a7740 (R-Mobile A1) based Armadillo board
   - Add gpio-keys device
   - Add PWM backlight enable GPIO
   - Add PWM backlight power supply
 
 * r8a73a0 (SH-Mobile AG5), r8a7740 (R-Mobile A1) and
   r8a73a4 (SH-Mobile APE6) SoCs
   - Specify PFC interrupts in DT
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJSuZPxAAoJENfPZGlqN0++G1cP/j2A/bL1NA1MeYSYmTeaW50X
 vbEseiL4vbme3TJ6c+yJMd8ayV2V3W+fzua+s4R6+9Q1oyfCwigbS+lfrjx6e2+Q
 KanklWZOJyj6NerSoHtF4e9ayE+YN4IuMR0fLKr7W4cqn3+EHuBMAxOhd70JxYfD
 tEI9t9fJEjMTDFQlzlkDGyYJX5ryg3jXs3WC96pqHafdHlznSsS2l+aANKWBDrjO
 hPeqWygK2Wz56ifO5A2/N8skGtHTaqDVGdhXSqa6vcH1wWdM9yK8cnpE7ktwrFyo
 dOD2uu1mmNv4NiaW5fyKNKjdde3YRY/wJ7S0CSuYdShnbEaIQbyqPDMUmZErEF2j
 9S/GXPnyVjmDeaQ8cnhr8+NIsn/hM72mOaQB/jyrF979dlCkYov3pr+5TiupKXCG
 hqOaHG8OtlusG0p19oO8DWgzHZsgrYwwBdaDSRF/NCilk5wOgQg2gf8sWr6W/Kiz
 8TFZvS99tlzhAXUthhINf4cHg1otAuMt4xKiDlpy2dzd1LGaHRxtCFFecF3b6PIF
 zTa2rjdUV8mNXB4jhG7EdoLqMamuHifIY9TngQg+f1CjQH0BkR4BgOYY6FnlHI36
 NGjRqUJBY0tDBRL3yER0s9QIPhtZgkYGO3PrniGlT9575VNK1CuwW4JwNBkwZyPC
 xVbIpoJqG5cXMN4ENLFe
 =NpbK
 -----END PGP SIGNATURE-----

Merge tag 'renesas-dt3-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt

From Simon Horman:
Third Round of Renesas ARM Based SoC DT Updates for v3.14

* r8a7791 (R-Car M2) and r8a7790 (R-Car H2) SoCSs
  - Add SSI, QSPI and MSIOF  clocks in device tree

r8a7791 (R-Car M2) based Koelsch and r8a7790 (R-Car H2) based Lager boards
  - Remove reference DTS
  - Specify external clock frequency in DT
  - Sync non-reference DTS with referene DTS
  - Add clocks to DTS

* r8a7740 (R-Mobile A1) based Armadillo board
  - Add gpio-keys device
  - Add PWM backlight enable GPIO
  - Add PWM backlight power supply

* r8a73a0 (SH-Mobile AG5), r8a7740 (R-Mobile A1) and
  r8a73a4 (SH-Mobile APE6) SoCs
  - Specify PFC interrupts in DT

* tag 'renesas-dt3-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (72 commits)
  ARM: shmobile: r8a7791: Add SSI clocks in device tree
  ARM: shmobile: r8a7790: Add SSI clocks in device tree
  ARM: shmobile: r8a7791: Add QSPI module clock in device tree
  ARM: shmobile: r8a7790: Add QSPI module clock in device tree
  ARM: shmobile: r8a7791: Add MSIOF clocks in device tree
  ARM: shmobile: r8a7790: Add MSIOF clocks in device tree
  ARM: shmobile: Remove Koelsch reference DTS
  ARM: shmobile: Remove Lager reference DTS
  ARM: shmobile: koelsch: Specify external clock frequency in DT
  ARM: shmobile: lager: Specify external clock frequency in DT
  ARM: shmobile: Sync Koelsch DTS with Koelsch reference DTS
  ARM: shmobile: Sync Lager DTS with Lager reference DTS
  ARM: shmobile: r8a7791: Add clocks
  ARM: shmobile: r8a7790: Reference clocks
  ARM: shmobile: r8a7790: Add clocks
  ARM: shmobile: armadillo: dts: Add gpio-keys device
  ARM: shmobile: sh73a0: Specify PFC interrupts in DT
  ARM: shmobile: r8a7740: Specify PFC interrupts in DT
  ARM: shmobile: r8a73a4: Specify PFC interrupts in DT
  ARM: shmobile: armadillo: dts: Add PWM backlight enable GPIO
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-03 21:09:51 -08:00
Olof Johansson 770039fef4 Merge branch 'tegra/dma-reset-rework' into next/dt
Bringing in the tegra dma/reset framework cleanup as a base for the DT changes.

* tegra/dma-reset-rework: (320 commits)
  spi: tegra: checking for ERR_PTR instead of NULL
  ASoC: tegra: update module reset list for Tegra124
  clk: tegra: remove bogus PCIE_XCLK
  clk: tegra: remove legacy reset APIs
  ARM: tegra: remove legacy DMA entries from DT
  ARM: tegra: remove legacy clock entries from DT
  USB: EHCI: tegra: use reset framework
  Input: tegra-kbc - use reset framework
  serial: tegra: convert to standard DMA DT bindings
  serial: tegra: use reset framework
  spi: tegra: convert to standard DMA DT bindings
  spi: tegra: use reset framework
  staging: nvec: use reset framework
  i2c: tegra: use reset framework
  ASoC: tegra: convert to standard DMA DT bindings
  ASoC: tegra: allocate AHUB FIFO during probe() not startup()
  ASoC: tegra: call pm_runtime APIs around register accesses
  ASoC: tegra: use reset framework
  dma: tegra: register as an OF DMA controller
  dma: tegra: use reset framework
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-26 11:03:29 -08:00
Laurent Pinchart 10cdfe9f32 clk: shmobile: Add R-Car Gen2 clocks support
The R-Car Gen2 SoCs (R8A7790 and R8A7791) have several clocks that are
too custom to be supported in a generic driver. Those clocks can be
divided in two categories:

- Fixed rate clocks with multiplier and divisor set according to boot
  mode configuration

- Custom divider clocks with SoC-specific divider values

This driver supports both.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-12-12 19:23:58 -08:00
Stephen Warren 2ae77527bb clk: tegra: remove legacy reset APIs
Now that no code uses the custom Tegra module reset API, we can remove
its implementation.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
2013-12-11 16:45:07 -07:00
Boris BREZILLON 1a748d2bc5 clk: at91: add PMC pll clocks
This patch adds new at91 pll clock implementation using common clk framework.

The pll clock layout describe the PLLX register layout.
There are four pll clock layouts:
- at91rm9200
- at91sam9g20
- at91sam9g45
- sama5d3

PLL clocks are given characteristics:
- min/max clock source rate
- ranges of valid clock output rates
- values to set in out and icpll fields for each supported output range

These characteristics are checked during rate change to avoid
over/underclocking.

These characteristics are described in atmel's SoC datasheet in
"Electrical Characteristics" paragraph.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-12-02 15:31:22 +01:00
Boris BREZILLON 2edb90ae42 ARM: at91: move at91_pmc.h to include/linux/clk/at91_pmc.h
This patch moves at91_pmc.h header from machine specific directory
(arch/arm/mach-at91/include/mach/at91_pmc.h) to clk include directory
(include/linux/clk/at91_pmc.h).
We need this to avoid reference to machine specific headers in clk
drivers.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-12-02 15:22:15 +01:00
Sebastian Hesselbarth dd03ee9ae5 ARM: mxs: remove custom .init_time hook
This patch converts clk-imx2[38] clocksource_of_init compatible init
associated with fsl,imx2[38]-clkctrl. With arch/arm calling
of_clk_init(NULL) from time_init(), we can now also remove custom
.init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
2013-09-29 21:09:34 +02:00
Sebastian Hesselbarth be0804513a clk: sunxi: declare OF clock provider
Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts sunxi clock
providers to make use of it and get rid of the mach specific clk init
call. As sunxi has a bunch of independent clk provider nodes, we hook
current clock init to board compatible to make it called once.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-09-29 21:07:16 +02:00
Linus Torvalds 92295f632c The common clock framework changes for 3.11 include new clock drivers
across several different platforms and architectures, fixes to existing
 drivers, a MAINTAINERS file fix and improvements to the basic clock
 types that allow them to be of use to more platforms than before. Only a
 few fixes to the core framework are included with most all of the
 changes landing in the various clock drivers themselves.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJR0hFpAAoJEDqPOy9afJhJcr4P/iA83uEGXIncUzFsbCIsKNGl
 g8yoasz1mpcAng31kK54lasNpFvUYIEBLKWkJBN56h2J5gJ3OKpi7basnQGRykjh
 +rCg2dV4gKDBQzypdeg5kPxf0YLJ8KrwyngcRm5KA3oxKYtmLHt/M2jmDd3DXP0h
 dKo2bkR52eQ7E+ij6/MWgUObxWiFnH0C5Lf+L0tGHsRlRvZTV6NMymX2v0sIOCw9
 hpsrL+7Hqf/+PBfWBljH0IAiI72I5dGEaJoesdTRWz8qut+duwF+OGlzMZnkclMf
 XU444HnvCq3bWGP5NYf9ASO4RRA2IGEoN/eDeiVX5hvkAjeUNHVNhkcUk28Xn9vI
 ZxCxwBXki4wGayiQm4TTgORozmp4i+NwbOuG+s3For1qQU43aA7ppwysFHGXngQa
 bxXT2pNECLX8WR91vkmEdqeQVm6s++R3zltHFUry1VRjTIs5y18Dt9kR6T16NKKQ
 ztoegeQQ8SI7HOLd+tR2v19VXH4zoV3NYAdkCKJX+VXFg+4mgJERmXoU350V3d8D
 wxde7WU4KLO4+1Fngror8wocP8jRRHfhx5jbBVVJ5n6BnF/Mos24g7KI1VPis3Wr
 XZQibxLW0kZ7/hTHykZCff8D4aNqR4fT/UCKyy2Xw1aR0zkD9ZAQq5oWhL99lsnt
 cCe9GBP0Lum9Zq9jjMwL
 =SwMB
 -----END PGP SIGNATURE-----

Merge tag 'clk-for-linus-3.11' of git://git.linaro.org/people/mturquette/linux

Pull clock framework updates from Mike Turquette:
 "The common clock framework changes for 3.11 include new clock drivers
  across several different platforms and architectures, fixes to
  existing drivers, a MAINTAINERS file fix and improvements to the basic
  clock types that allow them to be of use to more platforms than before.

  Only a few fixes to the core framework are included with most all of
  the changes landing in the various clock drivers themselves."

* tag 'clk-for-linus-3.11' of git://git.linaro.org/people/mturquette/linux: (55 commits)
  clk: tegra: fix ifdef for tegra_periph_reset_assert inline
  clk: tegra: provide tegra_periph_reset_assert alternative
  clk: exynos4: Fix clock aliases for cpufreq related clocks
  clk: samsung: Add MUX_FA macro to pass flag and alias
  clk: add support for Rockchip gate clocks
  clk: vexpress: Make the clock drivers directly available for arm64
  clk: vexpress: Use full node name to identify individual clocks
  clk: tegra: T114: add DFLL DVCO reset control
  clk: tegra: T114: add DFLL source clocks
  clk: tegra: T114: add FCPU clock shaper programming, needed by the DFLL
  clk: gate: add CLK_GATE_HIWORD_MASK
  clk: divider: add CLK_DIVIDER_HIWORD_MASK flag
  clk: mux: add CLK_MUX_HIWORD_MASK
  clk: Always notify whole subtree when reparenting
  MAINTAINERS: make drivers/clk entry match subdirs
  clk: honor CLK_GET_RATE_NOCACHE in clk_set_rate
  clk: use clk_get_rate() for debugfs
  clk: tegra: Use override bits when needed
  clk: tegra: override bits for Tegra30 PLLM
  clk: tegra: override bits for Tegra114 PLLM
  ...
2013-07-03 11:54:50 -07:00
Stephen Warren 45e3ec3784 clk: tegra: fix ifdef for tegra_periph_reset_assert inline
Commit 7064f6b "clk: tegra: provide tegra_periph_reset_assert
alternative" added ifdef'd static inline versions of some functions,
but tested ARCH_TEGRA rather than CONFIG_ARCH_TEGRA, thus disabling
these function in all cases. In some cases, this caused HW modules to
misbehave; for example, the Tegra I2C driver BUG()d during boot on
Seaboard.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Paul Walmsley <pwalmsley@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-06-24 14:17:59 -07:00
Arnd Bergmann 7064f6bd86 clk: tegra: provide tegra_periph_reset_assert alternative
We have some tegra device drivers that are written to be platform
independent but still use the tegra specific tegra_periph_reset_assert
function. In order to build and link them without errors,
this provides a static inline version of these functions that
does nothing when Tegra support is disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: fixed up trivial merge issue]
2013-06-22 11:03:09 -07:00
Olof Johansson e56c60c374 Merge tag 'zynq-clk-for-3.11' of git://git.xilinx.com/linux-xlnx into next/soc
From Michal Simek:
arm: Xilinx Zynq clock changes for v3.11

Change Xilinx Zynq DT clock description which reflects logical abstraction
of Zynq's clock tree.

- Refactor PLL driver
- Use new clock controller driver
- Change timer and uart drivers

* tag 'zynq-clk-for-3.11' of git://git.xilinx.com/linux-xlnx:
  clk: zynq: Remove deprecated clock code
  arm: zynq: Migrate platform to clock controller
  clk: zynq: Add clock controller driver
  clk: zynq: Factor out PLL driver

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-07 18:21:51 -07:00
Prashant Gaikwad 061cec925f clk: tegra: Use common of_clk_init function
Use common of_clk_init() function for clocks initialization.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-05-31 12:57:25 -07:00
Sebastian Hesselbarth ea7e0bd7e7 clk: mvebu: disintegrate obsolete file
Switch from function-centric to soc-centric clock drivers now makes
a bunch of files obsolete. This deletes all files and Kconfig options
that are not required anymore.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-05-29 19:28:29 +00:00
Soren Brinkmann 30e1e28598 arm: zynq: Migrate platform to clock controller
Migrate the Zynq platform and its drivers to use the new clock
controller driver.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-05-27 09:21:22 +02:00
Linus Torvalds 6fa52ed33b ARM: arm-soc driver changes for 3.10
This is a rather large set of patches for device drivers that for one
 reason or another the subsystem maintainer preferred to get merged
 through the arm-soc tree. There are both new drivers as well as
 existing drivers that are getting converted from platform-specific
 code into standalone drivers using the appropriate subsystem
 specific interfaces.
 
 In particular, we can now have pinctrl, clk, clksource and irqchip
 drivers in one file per driver, without the need to call into
 platform specific interface, or to get called from platform specific
 code, as long as all information about the hardware is provided
 through a device tree.
 
 Most of the drivers we touch this time are for clocksource. Since
 now most of them are part of drivers/clocksource, I expect that we
 won't have to touch these again from arm-soc and can let the
 clocksource maintainers take care of these in the future.
 
 Another larger part of this series is specific to the exynos platform,
 which is seeing some significant effort in upstreaming and
 modernization of its device drivers this time around, which
 unfortunately is also the cause for the churn and a lot of the
 merge conflicts.
 
 There is one new subsystem that gets merged as part of this series:
 the reset controller interface, which is a very simple interface
 for taking devices on the SoC out of reset or back into reset.
 Patches to use this interface on i.MX follow later in this merge
 window, and we are going to have other platforms (at least tegra
 and sirf) get converted in 3.11. This will let us get rid of
 platform specific callbacks in a number of platform independent
 device drivers.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJRhKUsAAoJEIwa5zzehBx3Ug4P/RqEen15hxS/NY8SIVRAU5c0
 G9ZiSPcLmvXGR/t1RZFeLWKaKOYRb2oW1EbXrlkddprkmg85RuQE/KMpCgzPPhVC
 Yrs8UaagMGblaLOjwavVjin/CUXZokRdMfsQoIyMGOezmVGFnv4d4Kt64IOf35DF
 24vDv/QO0BAI9k6m6WLqlWvSshb0IkW8r2LneRLnMEAVop7b1xkOxz0sR6l0LWfV
 6JAMXyTjJMg0t8uCVW/QyNdxcxINHhV4SYcNkzF3EZ7ol50OiJsT9fg0XW759+Wb
 vlX6Xuehg+CBOg+g3ZOZuR8JOEkOhAGRSzuJkk/TmLCCxc+ghnuYz8HArxh6GMHK
 KaxvogLIi0ZsD94A/BZIKkDtOLWlzdz2HBrYo9PTz8zrOz/gXhwQ3zq0jPccC5E0
 S+YYiobCBXepknF9301ti7wGD9VDzI8nmqOKG6tEBrD3xuO+RoBv+z4pBugN4/1C
 DlB19gOz60G5kniziL+wlmWER2qXmYrQZqS+s6+B2XoyoETC0Yij3Rck5vyC6qIK
 A2sni+Y9rzNOB9nzmnISP/UiGUffCy8AV4DZJjMSl0XkF4cpOXqRVGZ2nGB4tR5q
 GTOETcDCo5dvMDKX7Wfrz40CQzO39tnPCddg3OIS93ZwMpCeykIlb1FVL7RcsyF7
 3uikzYHlDo3C5pvtJ5TS
 =ZWk9
 -----END PGP SIGNATURE-----

Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver changes from Olof Johansson:
 "This is a rather large set of patches for device drivers that for one
  reason or another the subsystem maintainer preferred to get merged
  through the arm-soc tree.  There are both new drivers as well as
  existing drivers that are getting converted from platform-specific
  code into standalone drivers using the appropriate subsystem specific
  interfaces.

  In particular, we can now have pinctrl, clk, clksource and irqchip
  drivers in one file per driver, without the need to call into platform
  specific interface, or to get called from platform specific code, as
  long as all information about the hardware is provided through a
  device tree.

  Most of the drivers we touch this time are for clocksource.  Since now
  most of them are part of drivers/clocksource, I expect that we won't
  have to touch these again from arm-soc and can let the clocksource
  maintainers take care of these in the future.

  Another larger part of this series is specific to the exynos platform,
  which is seeing some significant effort in upstreaming and
  modernization of its device drivers this time around, which
  unfortunately is also the cause for the churn and a lot of the merge
  conflicts.

  There is one new subsystem that gets merged as part of this series:
  the reset controller interface, which is a very simple interface for
  taking devices on the SoC out of reset or back into reset.  Patches to
  use this interface on i.MX follow later in this merge window, and we
  are going to have other platforms (at least tegra and sirf) get
  converted in 3.11.  This will let us get rid of platform specific
  callbacks in a number of platform independent device drivers."

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (256 commits)
  irqchip: s3c24xx: add missing __init annotations
  ARM: dts: Disable the RTC by default on exynos5
  clk: exynos5250: Fix parent clock for sclk_mmc{0,1,2,3}
  ARM: exynos: restore mach/regs-clock.h for exynos5
  clocksource: exynos_mct: fix build error on non-DT
  pinctrl: vt8500: wmt: Fix checking return value of pinctrl_register()
  irqchip: vt8500: Convert arch-vt8500 to new irqchip infrastructure
  reset: NULL deref on allocation failure
  reset: Add reset controller API
  dt: describe base reset signal binding
  ARM: EXYNOS: Add arm-pmu DT binding for exynos421x
  ARM: EXYNOS: Add arm-pmu DT binding for exynos5250
  ARM: EXYNOS: Enable PMUs for exynos4
  irqchip: exynos-combiner: Correct combined IRQs for exynos4
  irqchip: exynos-combiner: Add set_irq_affinity function for combiner_irq
  ARM: EXYNOS: fix compilation error introduced due to common clock migration
  clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3}
  clk: exynos4: export clocks required for fimc-is
  clk: samsung: Fix compilation error
  clk: tegra: fix enum tegra114_clk to match binding
  ...
2013-05-04 12:31:18 -07:00
Olof Johansson 83c15f4c05 Merge branch 'depends/clk-for-3.10' into next/cleanup
Bringin in clk subsystem dependencies needed by sunxi.

* depends/clk-for-3.10: (26 commits)
  clk: sunxi: drop an unnecesary kmalloc
  clk: sunxi: drop CLK_IGNORE_UNUSED
  clk: sunxi: Add support for AXI, AHB, APB0 and APB1 gates
  clk: divider: Introduce CLK_DIVIDER_ALLOW_ZERO flag
  clk: mvebu: Use common of_clk_init() function
  clk: fix clk_mux::flags kerneldoc
  clk: allow reentrant calls into the clk framework
  clk: abstract locking out into helper functions
  clk: zynq: Add missing zynq clk header
  clk: sunxi: rename compatible strings
  arm: sunxi: Add useful information about sunxi clocks
  clk: arm: sunxi: Add a new clock driver for sunxi SOCs
  clk: ux500: Fix prcmu clocks registration
  ARM: imx: adapt clk_busy_mux to new clk_mux struct
  clk: Add composite clock type
  clk: add table lookup to mux
  clk: Fix incorrect return type in clk.c
  clk: prima2: fix return value check in sirfsoc_of_clk_init()
  clk:SPEAr1340: Correct parent clock configuration
  documentation: clk: fix couple of misspelling
  ...
2013-04-11 03:38:03 -07:00
Stephen Warren 441f199a37 clk: tegra: defer application of init table
The Tegra clock driver is initialized during the ARM machine descriptor's
.init_irq() hook. It can't be initialized earlier, since dynamic memory
usage is required. It can't be initialized later, since the .init_timer()
hook needs the clocks initialized. However, at this time, udelay()
doesn't work.

The Tegra clock initialization table may enable some PLLs. Enabling a PLL
may require usage of udelay(). Hence, this can't happen right when the
clock driver is initialized.

To solve this, separate the clock driver initialization from the clock
table processing, so they can execute at separate times.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-04 16:09:05 -06:00
Shawn Guo 3cb7825bdc ARM: mxs: remove common.h
All three remaining functions declared in common.h are implemented by
clock driver.  Create header include/linux/clk/mxs.h to contain them
and remove common.h.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 20:42:20 +08:00
Emilio López e874a66977 clk: arm: sunxi: Add a new clock driver for sunxi SOCs
This commit implements the base CPU clocks for sunxi devices. It has
been tested using a slightly modified cpufreq driver from the
linux-sunxi 3.0 tree.

Additionally, document the new bindings introduced by this patch.

Idling:
    / # cat /sys/kernel/debug/clk/clk_summary
       clock                        enable_cnt  prepare_cnt  rate
    ---------------------------------------------------------------------
     osc32k                         0           0            32768
     osc24M_fixed                   0           0            24000000
        osc24M                      0           0            24000000
           apb1_mux                 0           0            24000000
              apb1                  0           0            24000000
           pll1                     0           0            60000000
              cpu                   0           0            60000000
                 axi                0           0            60000000
                    ahb             0           0            60000000
                       apb0         0           0            30000000
     dummy                          0           0            0

After "yes >/dev/null &":
    / # cat /sys/kernel/debug/clk/clk_summary
       clock                        enable_cnt  prepare_cnt  rate
    ---------------------------------------------------------------------
     osc32k                         0           0            32768
     osc24M_fixed                   0           0            24000000
        osc24M                      0           0            24000000
           apb1_mux                 0           0            24000000
              apb1                  0           0            24000000
           pll1                     0           0            1008000000
              cpu                   0           0            1008000000
                 axi                0           0            336000000
                    ahb             0           0            168000000
                       apb0         0           0            84000000
     dummy                          0           0            0

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-03-27 08:35:34 -07:00
Linus Torvalds bab588fcfb arm-soc: soc-specific updates
This is a larger set of new functionality for the existing SoC families,
 including:
 
 * vt8500 gains support for new CPU cores, notably the Cortex-A9 based wm8850
 * prima2 gains support for the "marco" SoC family, its SMP based cousin
 * tegra gains support for the new Tegra4 (Tegra114) family
 * socfpga now supports a newer version of the hardware including SMP
 * i.mx31 and bcm2835 are now using DT probing for their clocks
 * lots of updates for sh-mobile
 * OMAP updates for clocks, power management and USB
 * i.mx6q and tegra now support cpuidle
 * kirkwood now supports PCIe hot plugging
 * tegra clock support is updated
 * tegra USB PHY probing gets implemented diffently
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUSUyPGCrR//JCVInAQI4YA/+Nb0FaA7qMmTPuJhm7aZNfnwBcGxZ7IZp
 s2xByEl3r5zbLKlKGNGE0x7Q7ETHV4y9tohzi9ZduH2b60dMRYgII06CEmDPu6/h
 4vBap2oLzfWfs9hwpCIh7N9wNzxSj/R42vlXHhNmspHlw7cFk1yw5EeJ+ocxmZPq
 H9lyjAxsGErkZyM/xstNQ1Uvhc8XHAFSUzWrg8hvf6AVVR8hwpIqVzfIizv6Vpk6
 ryBoUBHfdTztAOrafK54CdRc7l6kVMomRodKGzMyasnBK3ZfFca3IR7elnxLyEFJ
 uPDu5DKOdYrjXC8X2dPM6kYiE41YFuqOV2ahBt9HqRe6liNBLHQ6NAH7f7+jBWSI
 eeWe84c2vFaqhAGlci/xm4GaP0ud5ZLudtiVPlDY5tYIADqLygNcx1HIt/5sT7QI
 h34LMjc4+/TGVWTVf5yRmIzTrCXZv5YoAak3UWFoM4nVBo/eYVyNLEt5g9YsfjrC
 P/GWrXJJvOCB3gAi31pgGYJzZg8K7kTTAh/dgxjqzU4f6nGRm5PBydiJe18/lWkH
 qtfNE0RbhxCi3JEBnxW48AIEndVSRbd7jf8upC/s9rPURtFSVXp4APTHVyNUKCip
 gojBxcRYtesyG/53nrwdTyiyHx6GocmWnMNZJoDo0UQEkog2dOef+StdC3zhc2Vm
 9EttcFqWJ+E=
 =PRrg
 -----END PGP SIGNATURE-----

Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC-specific updates from Arnd Bergmann:
 "This is a larger set of new functionality for the existing SoC
  families, including:

   - vt8500 gains support for new CPU cores, notably the Cortex-A9 based
     wm8850

   - prima2 gains support for the "marco" SoC family, its SMP based
     cousin

   - tegra gains support for the new Tegra4 (Tegra114) family

   - socfpga now supports a newer version of the hardware including SMP

   - i.mx31 and bcm2835 are now using DT probing for their clocks

   - lots of updates for sh-mobile

   - OMAP updates for clocks, power management and USB

   - i.mx6q and tegra now support cpuidle

   - kirkwood now supports PCIe hot plugging

   - tegra clock support is updated

   - tegra USB PHY probing gets implemented diffently"

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits)
  ARM: prima2: remove duplicate v7_invalidate_l1
  ARM: shmobile: r8a7779: Correct TMU clock support again
  ARM: prima2: fix __init section for cpu hotplug
  ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3)
  ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3)
  arm: socfpga: Add SMP support for actual socfpga harware
  arm: Add v7_invalidate_l1 to cache-v7.S
  arm: socfpga: Add entries to enable make dtbs socfpga
  arm: socfpga: Add new device tree source for actual socfpga HW
  ARM: tegra: sort Kconfig selects for Tegra114
  ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114
  ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC
  ARM: tegra: Fix build error for gic update
  ARM: tegra: remove empty tegra_smp_init_cpus()
  ARM: shmobile: Register ARM architected timer
  ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
  ARM: shmobile: r8a7779: Correct TMU clock support
  ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT
  ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles
  ARM: mxs: use apbx bus clock to drive the timers on timrotv2
  ...
2013-02-21 15:27:22 -08:00
Prashant Gaikwad 52dec4c9ea ARM: tegra: remove legacy clock code
Remove all legacy clock code from mach-tegra.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-01-28 11:19:33 -07:00
Prashant Gaikwad 61fd290d21 ARM: tegra: migrate to new clock code
Migrate Tegra clock support to drivers/clk/tegra, this involves
moving:
1. definition of tegra_cpu_car_ops to clk.c
2. definition of reset functions to clk-peripheral.c
3. change parent of cpu clock.
4. Remove legacy clock initialization.
5. Initialize clocks using DT.
6. Remove all instance of mach/clk.h

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
[swarren: use to_clk_periph_gate().]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-01-28 11:19:07 -07:00
Prashant Gaikwad 89572c77cd ARM: tegra: move tegra_cpu_car.h to linux/clk/tegra.h
tegra_cpu_car_ops struct is going to be accessed from drivers/clk/tegra.
Move the tegra_cpu_car_ops to include/linux/clk/tegra.h.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-01-28 11:19:06 -07:00
Prashant Gaikwad 85a181986c clk: sunxi: Use common of_clk_init() function
Use common of_clk_init() function to initialize clocks.

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Acked-by: Maxime Ripard <maxime.ripard@anandra.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-01-24 11:12:23 -08:00
Linus Torvalds c2714334b9 ARM: arm-soc: Updates for Marvell mvebu/kirkwood
This is a branch with updates for Marvell's mvebu/kirkwood platforms. They
 came in late-ish, and were heavily interdependent such that it didn't
 make sense to split them up across the cross-platform topic branches. So
 here they are (for the second release in a row) in a branch on their own.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJQy5i9AAoJEIwa5zzehBx3ZskP/2wxjbwEaNdnR+7j8595bTaa
 GYq8qJ4lUCOKmSqp3bQkg/Plm2D88p78BO5qTm2io527gl10HemzCiGaejclujIw
 sDFZPAE8K0Z8p0gQcBNlRZNuI3J1N6IKRqYH5SIJ2vWmBMfO7nKRR9nmTiDpm5bx
 IcuKX2u/mhyXWN+F0EcHqcupH1K+mdzyGdIQk80Tyqni+UTN+pd0efLM6WL4SFJM
 5fj64dDFpVDA8t+O2Avz8p+lx07vkSy2wIXWt7Ik9BVtsyZQecn+9lpl8FvcrSK/
 MgL3QO4kqDpJDs88M7DJURU1/EdsWZc32M63avctaWnGWItQAbOJYBDmZTlng08x
 ZGrKOgf/I6le7wEpnzdag9ymI/rAL8I0755FkfXxf1R7/X40b+t8/61J/ddOKTDs
 1sTVt+eKyyIMWle4V4zENa03goVBApCIEXcmnuFisFNbBY6azV31inJEp/3PvpgE
 GeMBfxBDkvn+03LkRFcZlhTeDsNTdctD+sfgrNPaQf5bZGIvEz87vgfNTIiaU3GA
 Vd5aiainVDQgmpoFfRG6391gdFlF2l9d67LoG4ClCjn4WL+UxcTRuzBW/liORpUO
 E7CwMHtPq6eoGKywiKMFRzY2QRIKZRkxrC2PCJ/1V9mbIGwgaD/3BQ2/czwrnc8q
 1gnxWx8E5SKEGcDJXD+6
 =7luC
 -----END PGP SIGNATURE-----

Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC updates for Marvell mvebu/kirkwood from Olof Johansson:
 "This is a branch with updates for Marvell's mvebu/kirkwood platforms.
  They came in late-ish, and were heavily interdependent such that it
  didn't make sense to split them up across the cross-platform topic
  branches.  So here they are (for the second release in a row) in a
  branch on their own."

* tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (88 commits)
  arm: l2x0: add aurora related properties to OF binding
  arm: mvebu: add Aurora L2 Cache Controller to the DT
  arm: mvebu: add L2 cache support
  dma: mv_xor: fix error handling path
  dma: mv_xor: fix error checking of irq_of_parse_and_map()
  dma: mv_xor: use request_irq() instead of devm_request_irq()
  dma: mv_xor: clear the window override control registers
  arm: mvebu: fix address decoding armada_cfg_base() function
  ARM: mvebu: update defconfig with I2C and RTC support
  ARM: mvebu: Add SATA support for OpenBlocks AX3-4
  ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4
  ARM: mvebu: Add support for I2C on OpenBlocks AX3-4
  ARM: mvebu: Add support for I2C controllers in Armada 370/XP
  arm: mvebu: Add hardware I/O Coherency support
  arm: plat-orion: Add coherency attribute when setup mbus target
  arm: dma mapping: Export a dma ops function arm_dma_set_mask
  arm: mvebu: Add SMP support for Armada XP
  arm: mm: Add support for PJ4B cpu and init routines
  arm: mvebu: Add IPI support via doorbells
  arm: mvebu: Add initial support for power managmement service unit
  ...
2012-12-14 14:54:26 -08:00
Linus Torvalds db5b0ae007 ARM: arm-soc: device tree conversions and enablement
Continued device tree conversion and enablement across a number of
 platforms; Kirkwood, tegra, i.MX, Exynos, zynq and a couple of other
 smaller series as well.
 
 ux500 has seen continued conversion for platforms. Several platforms have
 seen pinctrl-via-devicetree conversions for simpler multiplatform. Tegra
 is adding data for new devices/drivers, and Exynos has a bunch of new
 bindings and devices added as well.
 
 So, pretty much the same progression in the right direction as the last
 few releases.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJQySW7AAoJEIwa5zzehBx39xcP/jzEQOTOJdK4zJd1OjgrQoX/
 WnhbGJT941RNjRjvDG6HmZzhpsRoE4q/zkjFEKoKELdikRW0hYoR+zPCGuB7XtN5
 aF1ZQrTx4gHf4KE7doIB8slaWeOq8aG2TLFhylyy+cuaIpRK0NG0pAR0ZqWaoga9
 tZFciqzplLeo50vZ+y+lVVsR40j/w29EjwPXhCV30//gGOYLyp/VDu5PRtrBdgh8
 EgpcT2EWJwMCN/Upcao/q2JbQktPHPpSwnpaUAALYB20uD7k5jo7wtYE/+L9nn6B
 bxcCDTMVmqzNTF+y0P16hDcs5jMLVjpI0xBiyZ1G6gShpggsSZCHY5ynjAtQ19se
 r+2WrNfOR23k6arJuOUAQSEnLdx0T5SlW6CJeFEofKv4uoebxAbKUiNO4ShWskhd
 nNptX1+L3hj3zpjGcEHmL6bd+nGtyMeoG9Yekcv1oZxdVcpKhFxh0s5PEJBEeXcN
 M7aAWlWJkplV22Olqhpc/3INCweq6E+zBrBxZaUBW/JCzGrqBUGC0BULDPAkmC4J
 CKL6IqIB73jGQ4OY14IaMU20GJrIGxZ7wzXOp4aw3OUpRlxsgurfyFQeIjUvVoZL
 PJ8DRoAVwreVHvKfgZZVKpSAY7dwcWbxpWsYlrH3zWIC5vRJ0UFwsD0TpLJWd6Vi
 XA8gQcJRWKGS8E5mRY39
 =Rk9v
 -----END PGP SIGNATURE-----

Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC device tree conversions and enablement from Olof Johansson:
 "Continued device tree conversion and enablement across a number of
  platforms; Kirkwood, tegra, i.MX, Exynos, zynq and a couple of other
  smaller series as well.

  ux500 has seen continued conversion for platforms.  Several platforms
  have seen pinctrl-via-devicetree conversions for simpler
  multiplatform.  Tegra is adding data for new devices/drivers, and
  Exynos has a bunch of new bindings and devices added as well.

  So, pretty much the same progression in the right direction as the
  last few releases."

Fix up conflicts as per Olof.

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (185 commits)
  ARM: ux500: Rename dbx500 cpufreq code to be more generic
  ARM: dts: add missing ux500 device trees
  ARM: ux500: Stop registering the PCM driver from platform code
  ARM: ux500: Move board specific GPIO info out to subordinate DTS files
  ARM: ux500: Disable the MMCI gpio-regulator by default
  ARM: Kirkwood: remove kirkwood_ehci_init() from new boards
  ARM: Kirkwood: Add support LED of OpenBlocks A6
  ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6
  ARM: kirkwood: Add NAND partiton map for OpenBlocks A6
  ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6
  ARM: kirkwood: Add support DT of second I2C bus
  ARM: kirkwood: Convert mplcec4 board to pinctrl
  ARM: Kirkwood: Convert km_kirkwood to pinctrl
  ARM: Kirkwood: support 98DX412x kirkwoods with pinctrl
  ARM: Kirkwood: Convert IX2-200 to pinctrl.
  ARM: Kirkwood: Convert lsxl boards to pinctrl.
  ARM: Kirkwood: Convert ib62x0 to pinctrl.
  ARM: Kirkwood: Convert GoFlex Net to pinctrl.
  ARM: Kirkwood: Convert dreamplug to pinctrl.
  ARM: Kirkwood: Convert dockstar to pinctrl.
  ...
2012-12-13 10:39:26 -08:00
Sebastian Hesselbarth 97fa4cf442 clk: mvebu: add mvebu core clocks.
This driver allows to provide DT clocks for core clocks found on
Marvell Kirkwood, Dove & 370/XP SoCs. The core clock frequencies and
ratios are determined by decoding the Sample-At-Reset registers.

Although technically correct, using a divider of 0 will lead to
div_by_zero panic. Let's use a ratio of 0/1 instead to fail later
with a zero clock.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by Gregory CLEMENT <gregory.clement@free-electrons.com>
2012-11-20 14:34:08 +01:00
Maxime Ripard 404525d5a7 clk: sunxi: Add dummy fixed rate clock for Allwinner A1X SoCs
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Mike Turquette <mturquette@ti.com>
2012-11-16 21:46:39 +01:00
Josh Cartwright 45aa2c27ad clk: Add support for fundamental zynq clks
Provide simplified models for the necessary clocks on the zynq-7000
platform.  Currently, the PLLs, the CPU clock network, and the basic
peripheral clock networks (for SDIO, SMC, SPI, QSPI, UART) are modelled.

OF bindings are also provided and documented.

Signed-off-by: Josh Cartwright <josh.cartwright@ni.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2012-11-14 16:07:55 +01:00
Simon Arlott 75fabc3f64 ARM: bcm2835: add stub clock driver
This patch adds a minimal stub clock driver for the BCM2835. Its sole
purpose is to allow the PL011 AMBA clk_get() API calls to provide
something that looks enough like a clock that the driver probes and
operates correctly.

This patch was extracted from git://github.com/lp0/linux.git branch
rpi-split as of 2012/09/08, and modified as follows:

* Reworked to call clk_register_fixed_rate(), and clk_register_clkdev()
  rather than using static data to represent the clocks.
* Moved implementation to drivers/clk/.
* Modified .dev_id for UART clocks to match UART DT node names.
* s/bcm2708/bcm2835/.
* Modified device tree vendor prefix.

Signed-off-by: Chris Boot <bootc@bootc.net>
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Signed-off-by: Dom Cobley <dc4@broadcom.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
2012-09-19 19:08:53 -06:00