Commit Graph

141 Commits

Author SHA1 Message Date
Tero Kristo
a0d54c3899 clk: ti: omap3+: dpll: use non-locking version of clk_get_rate
As the code in this file is being executed within irq context in some
cases, we must avoid the clk_get_rate which uses mutex internally.
Switch the code to use clk_hw_get_rate instead which is non-locking.

This fixes an issue where PM runtime will hang the system if enabled
with a serial console before a suspend-resume cycle.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Fixes: a53ad8ef3d ("clk: ti: Convert to clk_hw based provider APIs")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-02-22 14:03:02 -08:00
Linus Torvalds
0c582826a1 ARM: SoC non-urgent fixes for v4.5
As usual, we queue up a few fixes that don't seem urgent enough to go in
 through -rc.
 
  - MAINTAINERS updates to add a list for brcmstb and fix a typo
  - A handful of fixes for OMAP 81xx, a recently resurrected platform so these
    can't be considered real regressions and thus got queued.
  - A couple of other small fixes for scoop, sa1100 and davinci
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Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull non-urgent ARM SoC fixes from Olof Johansson:
 "As usual, we queue up a few fixes that don't seem urgent enough to go
  in through -rc.

   - MAINTAINERS updates to add a list for brcmstb and fix a typo
   - A handful of fixes for OMAP 81xx, a recently resurrected platform
     so these can't be considered real regressions and thus got queued.
   - A couple of other small fixes for scoop, sa1100 and davinci"

* tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP2+: Fix randconfig build warning for dm814_pllss_data
  ARM: sa1100/simpad: Be sure to clamp return value
  ARM: scoop: Be sure to clamp return value
  ARM: davinci: fix a problematic usage of WARN()
  ARM: davinci: only select WT cache if cache is enabled
  ARM: OMAP2+: Remove useless check for legacy booting for dm814x
  ARM: OMAP2+: Enable GPIO for dm814x
  ARM: dts: Fix dm814x pinctrl address and mask
  ARM: dts: Fix dm8148 control modules ranges
  ARM: OMAP2+: Fix timer entries for dm814x
  ARM: dts: Fix some mux and divider clocks to get dm814x-evm booting
  ARM: OMAP2+: Add DPPLS clock manager for dm814x
  clk: ti: Add few dm814x clock aliases
  ARM: dts: Fix dm814x entries for pllss and prcm
  MAINTAINERS: gpio-brcmstb: Remove stray '>'
  MAINTAINERS: brcmstb: Include Broadcom internal mailing-list
2016-01-20 17:44:16 -08:00
Tony Lindgren
5fbeef5822 clk: ti: Add few dm814x clock aliases
The timer clock aliases are needed early on dm814x. Let's also
add the aliases for the interconnects and MMC.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-12-03 12:02:31 -08:00
Stephen Boyd
41cabbc24d Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: sunxi: pll2: Fix clock running too fast
  clk: scpi: add missing of_node_put
  clk: qoriq: fix memory leak
  imx/clk-pllv2: fix wrong do_div() usage
  imx/clk-pllv1: fix wrong do_div() usage
  clk: mmp: add linux/clk.h includes
  clk: ti: drop locking code from mux/divider drivers
  clk: ti816x: Add missing dmtimer clkdev entries
  clk: ti: fapll: fix wrong do_div() usage
  clk: ti: clkt_dpll: fix wrong do_div() usage
  clk: gpio: Get parent clk names in of_gpio_clk_setup()
2015-12-02 23:29:23 -08:00
Tero Kristo
07ff73a932 clk: ti: omap5+: dpll: implement errata i810
Errata i810 states that DPLL controller can get stuck while transitioning
to a power saving state, while its M/N ratio is being re-programmed.

As a workaround, before re-programming the M/N ratio, SW has to ensure
the DPLL cannot start an idle state transition. SW can disable DPLL
idling by setting the DPLL AUTO_DPLL_MODE=0 or keeping a clock request
active by setting a dependent clock domain in SW_WKUP.

This errata impacts OMAP5 and DRA7 chips, so enable the errata for these.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-11-30 11:34:17 -08:00
Grygorii Strashko
167af5ef2c clk: ti: drop locking code from mux/divider drivers
TI's mux and divider clock drivers do not require locking and they do
not initialize internal spinlocks. This code was occasionally
copy-posted from generic mux/divider drivers. So remove it.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-11-24 11:30:27 +02:00
Neil Armstrong
3a5b1dc4a3 clk: ti816x: Add missing dmtimer clkdev entries
Add missing clkdev dmtimer related entries for dm816x.
32Khz and ext sources were missing.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Cc: Brian Hutchinson <b.hutchman@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-11-24 11:30:27 +02:00
Nicolas Pitre
c51185b45c clk: ti: fapll: fix wrong do_div() usage
do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-11-24 11:30:27 +02:00
Nicolas Pitre
df976f5d95 clk: ti: clkt_dpll: fix wrong do_div() usage
do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-11-24 11:30:27 +02:00
Julia Lawall
d687767a91 clk: ti: dra7: constify clk_hw_omap_ops structure
The clk_hw_omap_ops structures are never modified, so declare this one as
const, like the others.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-11-20 16:22:21 -08:00
Suman Anna
7aba4f5201 clk: ti: dflt: fix enable_reg validity check
The default clock enabling functions for TI clocks -
omap2_dflt_clk_enable() and omap2_dflt_clk_disable() perform a
NULL check for the enable_reg field of the clk_hw_omap structure.
This enable_reg field however is merely a combination of the index
of the master IP module, and the offset from the master IP module's
base address. A value of 0 is perfectly valid, and the current error
checking will fail in these cases. The issue was found when trying
to enable the iva2_ck clock on OMAP3 platforms.

So, switch the check to use IS_ERR. This correction is similar to the
logic used in commit c807dbedb5 ("clk: ti: fix ti_clk_get_reg_addr
error handling").

Fixes: 9f37e90efa ("clk: ti: dflt: move support for default gate clock..")
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-10-02 09:24:28 +03:00
Ben Dooks
19e79687de clk: ti: fix dual-registration of uart4_ick
On the OMAP AM3517 platform the uart4_ick gets registered
twice, causing any power management to /dev/ttyO3 to fail
when trying to wake the device up.

This solves the following oops:

[] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa09e008
[] PC is at serial_omap_pm+0x48/0x15c
[] LR is at _raw_spin_unlock_irqrestore+0x30/0x5c

Fixes: aafd900cab ("CLK: TI: add omap3 clock init file")
Cc: stable@vger.kernel.org
Cc: mturquette@baylibre.com
Cc: sboyd@codeaurora.org
Cc: linux-clk@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-kernel@lists.codethink.co.uk
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-10-02 09:24:28 +03:00
Peter Ujfalusi
4b3061b391 clk: ti: clk-7xx: Remove hardwired ABE clock configuration
The ABE related clocks should be configured via DT and not have it wired
inside of the kernel.

Fixes: a74c52def9 ("clk: ti: clk-7xx: Correct ABE DPLL configuration")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-10-02 09:24:28 +03:00
Linus Torvalds
b3a5af435a ARM: DT updates for v4.3
This is the usual large batch of DT updates. Lots and lots of smaller
 changes, some of the larger ones to point out are:
 
 - Rockchip veyron (Chromebook) support, as well as several other new boards
 - DRM support on Atmel AT91SAM9N12EK
 - USB additions on some Allwinner platforms
 - Mediatek MT6580 support
 - Freescale i.MX6UL support
 - Cleanups for Renesas shmobile platforms
 - Lots of added devices on LPC18xx
 - Lots of added devices and boards on UniPhier
 
 There's also some dependent code added here, in particular some branches
 that are primarily merged through the clock tree.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Olof Johansson:
 "Ladies and gentlemen, we proudly announce to you the latest branch of
  ARM device tree contents for the mainline kernel.  Come and see, come
  and see!

  No less than twentythree thousand lines of additions! Just imagine the
  joy you will have of using your mainline kernel on newly supported
  hardware such as Rockchip Chromebooks, Freescale i.MX6UL boards or
  UniPhier hardware!

  For those of you feeling less adventurous, added hardware support on
  platforms such as TI DM814x and Gumstix Overo platforms might be more
  of your liking.

  We've got something for everyone here!

  Ahem.  Cough.  So, anyway...

  This is the usual large batch of DT updates.  Lots and lots of smaller
  changes, some of the larger ones to point out are:

   - Rockchip veyron (Chromebook) support, as well as several other new boards
   - DRM support on Atmel AT91SAM9N12EK
   - USB additions on some Allwinner platforms
   - Mediatek MT6580 support
   - Freescale i.MX6UL support
   - cleanups for Renesas shmobile platforms
   - lots of added devices on LPC18xx
   - lots of added devices and boards on UniPhier

  There's also some dependent code added here, in particular some
  branches that are primarily merged through the clock tree"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (389 commits)
  ARM: tegra: Add gpio-ranges property
  ARM: tegra: Fix AHB base address on Tegra20, Tegra30 and Tegra114
  ARM: tegra: Add Tegra124 PMU support
  ARM: tegra: jetson-tk1: Add GK20A GPU DT node
  ARM: tegra: venice2: Add GK20A GPU DT node
  ARM: tegra: Add IOMMU node to GK20A
  ARM: tegra: Add CPU regulator to the Jetson TK1 device tree
  ARM: tegra: Add entries for cpufreq on Tegra124
  ARM: tegra: Enable the DFLL on the Jetson TK1
  ARM: tegra: Add the DFLL to Tegra124 device tree
  ARM: dts: zynq: Add devicetree entry for Xilinx Zynq reset controller.
  ARM: dts: UniPhier: fix PPI interrupt CPU mask of timer nodes
  ARM: dts: rockchip: correct regulator power states for suspend
  ARM: dts: rockchip: correct regulator PM properties
  ARM: dts: vexpress: Use assigned-clock-parents for sp810
  pinctrl: tegra: Only set the gpio range if needed
  arm: boot: dts: am4372: add ARM timers and SCU nodes
  ARM: dts: AM4372: Add the am4372-rtc compatible string
  ARM: shmobile: r8a7794 dtsi: Add CPG/MSTP Clock Domain
  ARM: shmobile: r8a7793 dtsi: Add CPG/MSTP Clock Domain
  ...
2015-09-01 13:09:20 -07:00
Linus Torvalds
50686e8a3a ARM: SoC platform updates for v4.3
New or improved SoC support:
 
 - Addition of support for Atmel's SAMA5D2 SoC
 - Addition of Freescale i.MX6UL
 - Improved support of TI's DM814x platform
 - Misc fixes and improvements for RockChip platforms
 - Marvell MVEBU suspend/resume support
 
 A few driver changes that ideally would belong in the drivers branch are
 also here (acked by appropriate maintainers):
 
 - Power key input driver for Freescale platforms (svns)
 - RTC driver updates for Freescale platforms (svns/mxc)
 - Clk fixes for TI DM814/816X
 
 + a bunch of other changes for various platforms
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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 updates from Olof Johansson:
 "New or improved SoC support:

   - add support for Atmel's SAMA5D2 SoC
   - add support for Freescale i.MX6UL
   - improved support for TI's DM814x platform
   - misc fixes and improvements for RockChip platforms
   - Marvell MVEBU suspend/resume support

  A few driver changes that ideally would belong in the drivers branch
  are also here (acked by appropriate maintainers):

   - power key input driver for Freescale platforms (svns)
   - RTC driver updates for Freescale platforms (svns/mxc)
   - clk fixes for TI DM814/816X

  + a bunch of other changes for various platforms"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: rockchip: pm: Fix PTR_ERR() argument
  ARM: imx: mach-imx6ul: Fix allmodconfig build
  clk: ti: fix for definition movement
  ARM: uniphier: drop v7_invalidate_l1 call at secondary entry
  memory: kill off set_irq_flags usage
  rtc: snvs: select option REGMAP_MMIO
  ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE
  ARM: BCM: Enable ARM erratum 798181 for BRCMSTB
  ARM: OMAP2+: Fix power domain operations regression caused by 81xx
  ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend
  ARM: rockchip: set correct stabilization thresholds in suspend
  ARM: rockchip: rename osc_switch_to_32k variable
  ARM: imx6ul: add fec MAC refrence clock and phy fixup init
  ARM: imx6ul: add fec bits to GPR syscon definition
  rtc: mxc: add support of device tree
  dt-binding: document the binding for mxc rtc
  rtc: mxc: use a second rtc clock
  ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback
  soc: mediatek: Fix SCPSYS compilation
  ARM: at91/soc: add basic support for new sama5d2 SoC
  ...
2015-09-01 12:18:40 -07:00
Stephen Boyd
836ee0f7d9 clk: Convert __clk_get_name(hw->clk) to clk_hw_get_name(hw)
Use the provider based method to get a clock's name so that we
can get rid of the clk member in struct clk_hw one day. Mostly
converted with the following coccinelle script.

@@
struct clk_hw *E;
@@

-__clk_get_name(E->clk)
+clk_hw_get_name(E)

Acked-by: Heiko Stuebner <heiko@sntech.de>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kevin Cernekee <cernekee@chromium.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:49:12 -07:00
Stephen Boyd
a53ad8ef3d clk: ti: Convert to clk_hw based provider APIs
We're removing struct clk from the clk provider API, so switch
this code to using the clk_hw based provider APIs.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:48:58 -07:00
Stephen Boyd
b137b4507c clk: ti: Remove CLK_IS_BASIC check
This code is never called with a basic clock type, so the check
here is not doing anything useful and is blocking the removal of
__clk_get_flags(). Remove the check so we can delete the
__clk_get_flags() API.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:48:44 -07:00
Stephen Boyd
98d8a60ecc clk: Convert __clk_get_flags() to clk_hw_get_flags()
Mostly converted with the following snippet:

@@
struct clk_hw *E;
@@

-__clk_get_flags(E->clk)
+clk_hw_get_flags(E)

Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:48:44 -07:00
Stephen Boyd
497295afb5 clk: Replace __clk_get_num_parents with clk_hw_get_num_parents()
Mostly converted with the following semantic patch:

@@
struct clk_hw *E;
@@

-__clk_get_num_parents(E->clk)
+clk_hw_get_num_parents(E)

Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Chao Xie <chao.xie@marvell.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: "Emilio López" <emilio@elopez.com.ar>
Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:48:43 -07:00
Stephen Rothwell
f9511a4fc4 clk: ti: fix for definition movement
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13 13:03:40 +02:00
Keerthy
93c03a2c36 ARM: dts: AM437X: add dpll_clksel_mac_clk node
The patch adds the missing dpll_clksel_mac_clk clock node.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-07-31 12:13:18 +03:00
Stephen Boyd
9cfad9bc47 Merge branch 'cleanup-clk-h-includes' into clk-next
* cleanup-clk-h-includes: (62 commits)
  clk: Remove clk.h from clk-provider.h
  clk: h8300: Remove clk.h and clkdev.h includes
  clk: at91: Include clk.h and slab.h
  clk: ti: Switch clk-provider.h include to clk.h
  clk: pistachio: Include clk.h
  clk: ingenic: Include clk.h
  clk: si570: Include clk.h
  clk: moxart: Include clk.h
  clk: cdce925: Include clk.h
  clk: Include clk.h in clk.c
  clk: zynq: Include clk.h
  clk: ti: Include clk.h
  clk: sunxi: Include clk.h and remove unused clkdev.h includes
  clk: st: Include clk.h
  clk: qcom: Include clk.h
  clk: highbank: Include clk.h
  clk: bcm: Include clk.h
  clk: versatile: Remove clk.h and clkdev.h includes
  clk: ux500: Remove clk.h and clkdev.h includes
  clk: tegra: Properly include clk.h
  ...
2015-07-28 11:59:09 -07:00
Dinh Nguyen
9da9e76127 clk: ti: make use of of_clk_parent_fill helper function
Use of_clk_parent_fill to fill in the parent clock names' array.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-28 11:59:07 -07:00
Stephen Boyd
14cc4e9578 clk: ti: Force pointer to be __iomem
Add __force here so that sparse doesn't complain about us playing
tricks with __iomem.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-28 11:58:41 -07:00
Stephen Boyd
76642eb4cb clk: ti: clk-3xxx: Remove unused structures
Sparse complains about these structures missing static, but they
also don't look to be used. Remove them.

drivers/clk/ti/clk-3xxx.c:74:30: warning: symbol 'clkhwops_omap3430es2_ssi_wait' was not declared. Should it be static?
drivers/clk/ti/clk-3xxx.c:157:30: warning: symbol 'clkhwops_omap3430es2_hsotgusb_wait' was not declared. Should it be static?

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-28 11:58:39 -07:00
Stephen Boyd
3fe6d69742 clk: ti: Mark ti_clk_features static
This variable isn't exported outside of this file so mark it
static. Silences the following sparse warning:

drivers/clk/ti/clk.c:36:24: warning: symbol 'ti_clk_features' was not declared. Should it be static?

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-28 11:58:37 -07:00
Stephen Boyd
f645f72d87 clk: ti: Check kzalloc() for failures
smatch reports a failure to check kzalloc() here:

drivers/clk/ti/clk.c:232
omap2_clk_provider_init() error: potential null dereference 'io'.
(kzalloc returns null)

Check for an allocation failure and return -ENOMEM.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-28 11:58:35 -07:00
Stephen Boyd
4d34105620 Merge branch 'for-4.2/ti-clk-move' of https://github.com/t-kristo/linux-pm into clk-next
From Tero Kristo:
  "This pull request contains the TI clock driver set to move the
   clock implementations under clock driver. Some small portions of
   the clock driver code still remain under mach-omap2 after this,
   it should be decided whether this code is now obsolete and should
   be deleted or should someone try to fix it."

Slight merge conflicts with determine_rate prototype changes.
2015-07-28 11:58:26 -07:00
Stephen Boyd
27df3ee278 clk: ti: Switch clk-provider.h include to clk.h
This file isn't a clock provider but uses the consumer API, so
include clk.h instead of clk-provider.h.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 11:11:38 -07:00
Stephen Boyd
1b29e60157 clk: ti: Include clk.h
This clock provider uses the consumer API, so include clk.h
explicitly.

Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 11:11:28 -07:00
Tony Lindgren
9cf705de06 ARM: OMAP2+: Add support for initializing dm814x clocks
Let's add a minimal clocks for dm814x to get it booted. This is
mostly a placeholder and relies on the PLLs being on from the
bootloader.

Note that the divider clocks work the same way as on dm816x and
am335x.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 02:09:33 -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
Geert Uytterhoeven
f71355b3d1 clk: ti: Use of_clk_get_parent_count() instead of open coding
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-04 13:51:37 -07:00
Tomi Valkeinen
f892b20352 CLK: TI: always enable DESHDCP clock
DESHDCP clock is needed on DRA7 based SoCs to enable the DSS IP. That
clock is an odd one, as it is not supposed to be any kind of core clock
for DSS, and we don't even support HDCP, but the clock is still needed
even for the HWMOD framework to be able to reset the DSS IP.

As there's no support for multiple core clocks in the HWMOD framework,
we don't have any obvious place to enable this clock when DSS IP is
being enabled.

Furthermore, the HDMI on OMAP5 DSS is the same as on DRA7, and OMAP5
does not have any such clock configuration bit. This suggests that on
OMAP5 the DESHDCP clock is always enabled, and for DRA7 we have the
possibility to gate it.

So, as we don't have any clean way to enable and disable the clock
based on the need, this patch enables the clock at boot time, making it
work similarly to OMAP5.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Michael Turquette <mturquette@linaro.org>
2015-06-04 09:00:52 +03:00
Tomi Valkeinen
2d5a3c803d arm: dra7: add DESHDCP clock
Add a new Linux clock for DRA7 based SoCs to control DESHDCP clock.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
2015-06-03 14:23:25 +03:00
Tero Kristo
989feafb84 clk: ti: move low-level access and init code under clock driver
With most of the clock code under clock driver already, the low-level
register access code, and the init code for the same, is no longer
needed outside the clock driver. Thus, these can be moved under clock
driver also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:46 +03:00
Tero Kristo
e9e63088e4 clk: ti: remove exported ll_ops struct, instead add an API for registration
We should avoid exporting data from drivers, instead use an API for
registering the clock low level operations.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:46 +03:00
Tero Kristo
a3314e9cf6 clk: ti: move some public definitions to private header
Several exported TI clock driver features are no longer needed outside
the clock driver itself, thus move all of these to the driver private
header file. Also, update some of the driver files to actually include
this header.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:45 +03:00
Tero Kristo
c9a58b0a84 clk: ti: am3517: move remaining am3517 clock support code to clock driver
With legacy clock support gone, this is no longer needed under platform,
so move it under the clock driver itself. Make some exports be driver
internal definitions at the same time.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:45 +03:00
Tero Kristo
f2671d5c6c clk: ti: omap34xx: move omap34xx clock type support code to clock driver
With the legacy clock data gone, this is no longer needed under platform,
so move it under the clock driver itself. Remove unnecessary declarations
from the TI clock header also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:37 +03:00
Tero Kristo
bd86cfdcbd clk: ti: clkdm: move clkdm gate clock support code to clock driver
With the legacy clock data gone, this is no longer needed under platform,
so move it under the clock driver itself. Remove the exported clock driver
APIs as well, as these are not needed outside clock driver anymore.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:30 +03:00
Tero Kristo
d5a04dddf5 clk: ti: omap2430: move clock support code under clock driver
With the legacy clock support gone, this is no longer needed under
platform code-base. Thus, move this under the TI clock driver, and
remove the exported API from the public header.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:29 +03:00
Tero Kristo
9f37e90efa clk: ti: dflt: move support for default gate clock to clock driver
With the legacy support gone, OMAP2+ default gate clock can be moved
under clock driver. Create a new file for the purpose, and clean-up
the header exports a bit as some clock APIs are no longer needed
outside clock driver itself.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:22 +03:00
Tero Kristo
0565fb168d clk: ti: dpll: move omap3 DPLL functionality to clock driver
With the legacy clock support gone, OMAP3 generic DPLL code can now be
moved over to the clock driver also. A few un-unused clkoutx2 functions
are also removed at the same time.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:14 +03:00
Tero Kristo
a5aa8a603e clk: ti: move omap2_clk_enable_init_clocks under clock driver
This is no longer used outside clock driver, so move it under the driver
and remove the export for it from the global header file.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:13 +03:00
Tero Kristo
bf22bae794 clk: ti: autoidle: move generic autoidle handling code to clock driver
This is no longer needed in platform directory, as the legacy clock data
is gone, so move it under TI clock driver. Some static functions are
renamed also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:31:13 +03:00
Tero Kristo
ef14db0977 clk: ti: move interface clock implementation under drivers/clk
With the legacy clock support gone, the OMAP interface clock implementation
can be moved under the clock driver. Some temporary header file tweaks are
also needed to make this change work properly.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:30:59 +03:00
Tero Kristo
59245ce01a clk: ti: move OMAP4+ DPLL implementation under drivers/clk
With the legacy clock support gone, the OMAP4 specific DPLL implementations
can be moved under the clock driver. Change some of the function prototypes
to be static at the same time, and remove some exports from the global TI
clock driver header.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:30:58 +03:00
Tero Kristo
b138b0283d clk: ti: move generic OMAP DPLL implementation under drivers/clk
With the legacy clock data now gone, we can start moving OMAP clock
type implementations under clock driver. Start this with moving the
generic OMAP DPLL clock type under TI clock driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02 12:30:58 +03:00