Commit Graph

235 Commits

Author SHA1 Message Date
Thomas Gleixner bd0b9ac405 genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-16 15:47:51 +02:00
Linus Torvalds 807249d3ad Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for 4.3 for MIPS.  Here's the summary:

  Three fixes that didn't make 4.2-stable:

   - a -Os build might compile the kernel using the MIPS16 instruction
     set but the R2 optimized inline functions in <uapi/asm/swab.h> are
     implemented using 32-bit wide instructions which is invalid.

   - a build error in pgtable-bits.h for a particular kernel
     configuration.

   - accessing registers of the CM GCR might have been compiled to use
     64 bit accesses but these registers are onl 32 bit wide.

  And also a few new bits:

   - move the ATH79 GPIO driver to drivers/gpio

   - the definition of IRQCHIP_DECLARE has moved to linux/irqchip.h,
     change ATH79 accordingly.

   - fix definition of pgprot_writecombine

   - add an implementation of dma_map_ops.mmap

   - fix alignment of quiet build output for vmlinuz link

   - BCM47xx: Use kmemdup rather than duplicating its implementation

   - Netlogic: Fix 0x0x prefixes of constants.

   - merge Bjorn Helgaas' series to remove most of the weak keywords
     from function declarations.

   - CP0 and CP1 registers are best considered treated as unsigned
     values to avoid large values from becoming negative values.

   - improve support for the MIPS GIC timer.

   - enable common clock framework for Malta and SEAD3.

   - a number of improvments and fixes to dump_tlb().

   - document the MIPS TLB dump functionality in Magic SysRq.

   - Cavium Octeon CN68XX improvments.

   - NetLogic improvments.

   - irq: Use access helper irq_data_get_affinity_mask.

   - handle MSA unaligned accesses.

   - a number of R6-related math-emu fixes.

   - support for I6400.

   - improvments to MSA support.

   - add uprobes support.

   - move from deprecated __initcall to arch_initcall.

   - remove finish_arch_switch().

   - IRQ cleanups by Thomas Gleixner.

   - migrate to new 'set-state' interface.

   - random small cleanups"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (148 commits)
  MIPS: UAPI: Fix unrecognized opcode WSBH/DSBH/DSHD when using MIPS16.
  MIPS: Fix alignment of quiet build output for vmlinuz link
  MIPS: math-emu: Remove unused handle_dsemul function declaration
  MIPS: math-emu: Add support for the MIPS R6 MAX{, A} FPU instruction
  MIPS: math-emu: Add support for the MIPS R6 MIN{, A} FPU instruction
  MIPS: math-emu: Add support for the MIPS R6 CLASS FPU instruction
  MIPS: math-emu: Add support for the MIPS R6 RINT FPU instruction
  MIPS: math-emu: Add support for the MIPS R6 MSUBF FPU instruction
  MIPS: math-emu: Add support for the MIPS R6 MADDF FPU instruction
  MIPS: math-emu: Add support for the MIPS R6 SELNEZ FPU instruction
  MIPS: math-emu: Add support for the MIPS R6 SELEQZ FPU instruction
  MIPS: math-emu: Add support for the CMP.condn.fmt R6 instruction
  MIPS: inst.h: Add new MIPS R6 FPU opcodes
  MIPS: Octeon: Fix management port MII address on Kontron S1901
  MIPS: BCM47xx: Use kmemdup rather than duplicating its implementation
  STAGING: Octeon: Use common helpers for determining interface and port
  MIPS: Octeon: Support interfaces 4 and 5
  MIPS: Octeon: Set up 1:1 mapping between CN68XX PKO queues and ports
  MIPS: Octeon: Initialize CN68XX PKO
  STAGING: Octeon: Support CN68XX style WQE
  ...
2015-09-03 16:55:55 -07:00
Alban Bedel 832f5dacfa MIPS: Remove all the uses of custom gpio.h
Currently CONFIG_ARCH_HAVE_CUSTOM_GPIO_H is defined for all MIPS
machines, and each machine type provides its own gpio.h. However
only a handful really implement the GPIO API, most just forward
everythings to gpiolib.

The Alchemy machine is notable as it provides a system to allow
implementing the GPIO API at the board level. But it is not used by
any board currently supported, so it can also be removed.

For most machine types we can just remove the custom gpio.h, as well
as the custom wrappers if some exists. Some of the code found in
the wrappers must be moved to the respective GPIO driver.

A few more fixes are need in some drivers as they rely on linux/gpio.h
to provides some machine specific definitions, or used asm/gpio.h
instead of linux/gpio.h for the gpio API.

Signed-off-by: Alban Bedel <albeu@free.fr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Daniel Walter <dwalter@google.com>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: James Hartley <james.hartley@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Varka Bhadram <varkabhadram@gmail.com>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Michael Buesch <m@bues.ch>
Cc: abdoulaye berthe <berthe.ab@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: netdev@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10828/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:02 +02:00
Viresh Kumar 3dcd7779ac MIPS: Alchemy: Migrate to new 'set-state' interface
Migrate alchemy driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.

This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.

We weren't doing anything in the ->set_mode() callback. So, this patch
doesn't provide any set-state callbacks.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linaro-kernel@lists.linaro.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Patchwork: https://patchwork.linux-mips.org/patch/10599/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:07:50 +02:00
Thomas Gleixner e0288a0a7b MIPS: alchemy: Remove pointless irqdisable/enable
bcsr_csc_handler() is a cascading interrupt handler. It has a
disable_irq_nosync()/enable_irq() pair around the generic_handle_irq()
call. The value of this disable/enable is zero because its a complete
noop:

disable_irq_nosync() merily increments the disable count without
actually masking the interrupt. enable_irq() soleley decrements the
disable count without touching the interrupt chip. The interrupt
cannot arrive again because the complete call chain runs with
interrupts disabled.

Remove it.

[ralf@linux-mips.org: Fold in followup fix from Thomas Gleixner.]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Patchwork: https://patchwork.linux-mips.org/patch/10702/
Patchwork: https://patchwork.linux-mips.org/patch/10708/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-26 15:23:30 +02:00
Thomas Gleixner 5a06545008 MIPS: alchemy: Use irq_set_chip_handler_name_locked()
Hand in irq_data and avoid the redundant lookup of irq_desc.

Originally-from: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10700/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-26 15:23:28 +02:00
Stephen Boyd 617b8272a6 MIPS: alchemy: 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.

Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24 16:48:46 -07:00
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
Boris Brezillon 57d866e606 clk: fix some determine_rate implementations
Some determine_rate implementations are not returning an error
when they failed to adapt the rate according to the rate request.
Fix them so that they return an error instead of silently
returning 0.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Jonathan Corbet <corbet@lwn.net>
CC: Tony Lindgren <tony@atomide.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: "Emilio López" <emilio@elopez.com.ar>
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Tero Kristo <t-kristo@ti.com>
CC: Peter De Schrijver <pdeschrijver@nvidia.com>
CC: Prashant Gaikwad <pgaikwad@nvidia.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
CC: linux-omap@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: linux-tegra@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-27 18:13:32 -07:00
Boris Brezillon 0817b62cc0 clk: change clk_ops' ->determine_rate() prototype
Clock rates are stored in an unsigned long field, but ->determine_rate()
(which returns a rounded rate from a requested one) returns a long
value (errors are reported using negative error codes), which can lead
to long overflow if the clock rate exceed 2Ghz.

Change ->determine_rate() prototype to return 0 or an error code, and pass
a pointer to a clk_rate_request structure containing the expected target
rate and the rate constraints imposed by clk users.

The clk_rate_request structure might be extended in the future to contain
other kind of constraints like the rounding policy, the maximum clock
inaccuracy or other things that are not yet supported by the CCF
(power consumption constraints ?).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Jonathan Corbet <corbet@lwn.net>
CC: Tony Lindgren <tony@atomide.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: "Emilio López" <emilio@elopez.com.ar>
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
CC: Peter De Schrijver <pdeschrijver@nvidia.com>
CC: Prashant Gaikwad <pgaikwad@nvidia.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
CC: linux-omap@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: linux-tegra@vger.kernel.org
[sboyd@codeaurora.org: Fix parent dereference problem in
__clk_determine_rate()]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[sboyd@codeaurora.org: Folded in fix from Heiko for fixed-rate
clocks without parents or a rate determining op]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-27 18:12:01 -07:00
Stephen Boyd 4280cf54ee MIPS: Alchemy: Include clk.h
This clock provider uses the consumer API, so include clk.h
explicitly.

Cc: Manuel Lauss <manuel.lauss@gmail.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:38 -07:00
Krzysztof Kozlowski 2e93f68408 MIPS: Alchemy: Remove unneeded cast removing const
Parent names in clock init data is now array of const pointers to const
strings so the cast is not needed.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Barry Song <baohua@kernel.org>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-clk@vger.kernel.org
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: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Patchwork: https://patchwork.linux-mips.org/patch/9903
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:46 +02:00
Linus Torvalds a135c717d5 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for MIPS:

   - a number of fixes that didn't make the 3.19 release.

   - a number of cleanups.

   - preliminary support for Cavium's Octeon 3 SOCs which feature up to
     48 MIPS64 R3 cores with FPU and hardware virtualization.

   - support for MIPS R6 processors.

     Revision 6 of the MIPS architecture is a major revision of the MIPS
     architecture which does away with many of original sins of the
     architecture such as branch delay slots.  This and other changes in
     R6 require major changes throughout the entire MIPS core
     architecture code and make up for the lion share of this pull
     request.

   - finally some preparatory work for eXtendend Physical Address
     support, which allows support of up to 40 bit of physical address
     space on 32 bit processors"

     [ Ahh, MIPS can't leave the PAE brain damage alone.  It's like
       every CPU architect has to make that mistake, but pee in the snow
       by changing the TLA.  But whether it's called PAE, LPAE or XPA,
       it's horrid crud   - Linus ]

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (114 commits)
  MIPS: sead3: Corrected get_c0_perfcount_int
  MIPS: mm: Remove dead macro definitions
  MIPS: OCTEON: irq: add CIB and other fixes
  MIPS: OCTEON: Don't do acknowledge operations for level triggered irqs.
  MIPS: OCTEON: More OCTEONIII support
  MIPS: OCTEON: Remove setting of processor specific CVMCTL icache bits.
  MIPS: OCTEON: Core-15169 Workaround and general CVMSEG cleanup.
  MIPS: OCTEON: Update octeon-model.h code for new SoCs.
  MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX
  MIPS: OCTEON: Add little-endian support to asm/octeon/octeon.h
  MIPS: OCTEON: Implement the core-16057 workaround
  MIPS: OCTEON: Delete unused COP2 saving code
  MIPS: OCTEON: Use correct instruction to read 64-bit COP0 register
  MIPS: OCTEON: Save and restore CP2 SHA3 state
  MIPS: OCTEON: Fix FP context save.
  MIPS: OCTEON: Save/Restore wider multiply registers in OCTEON III CPUs
  MIPS: boot: Provide more uImage options
  MIPS: Remove unneeded #ifdef __KERNEL__ from asm/processor.h
  MIPS: ip22-gio: Remove legacy suspend/resume support
  mips: pci: Add ifdef around pci_proc_domain
  ...
2015-02-21 19:41:38 -08:00
Manuel Lauss 69e4e63ec8 MIPS: Alchemy: Fix cpu clock calculation
The current code uses bits 0-6 of the sys_cpupll register to calculate
core clock speed.  However this is only valid on Au1300, on all earlier
models the hardware only uses bits 0-5 to generate core clock.

This fixes clock calculation on the MTX1 (Au1500), where bit 6 of cpupll
is set as well, which ultimately lead the code to calculate a bogus cpu
core clock and also uart base clock down the line.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Reported-by: John Crispin <blogic@openwrt.org>
Tested-by: Bruno Randolf <br1@einfach.org>
Cc: stable@vger.kernel.org	[v3.17+]
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9279/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-20 13:01:42 +01:00
Manuel Lauss 200276e673 MIPS: Alchemy: remove declaration for set_cpuspec
set_cpuspec() has been dropped with commit 074cf65670
("MIPS: Alchemy: remove cpu_table.") in late 2008.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9150/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-20 13:00:45 +01:00
Manuel Lauss 45a848f7fa MIPS: Alchemy: preset loops_per_jiffy based on CPU clock
This was lost during the rewrite of clock framework support.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9149/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-20 13:00:25 +01:00
Manuel Lauss 51f105d307 MIPS: Alchemy: fix Au1000/Au1500 LRCLK calculation
The Au1000 and Au1500 calculate the LRCLK a bit differently than
newer models: a single bit in MEM_STCFG0 selects if pclk is divided
by 4 or 5.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9148/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-20 13:00:08 +01:00
Tomeu Vizoso 69b59cb817 MIPS: Alchemy: Remove bogus args from alchemy_clk_fgcs_detr
They were added to this function by mistake when they were added to the
clk_ops.determine_rate callback.

Fixes: 1c8e600440 ("clk: Add rate constraints to clocks")
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-18 09:39:37 -08:00
Tomeu Vizoso 1c8e600440 clk: Add rate constraints to clocks
Adds a way for clock consumers to set maximum and minimum rates. This
can be used for thermal drivers to set minimum rates, or by misc.
drivers to set maximum rates to assure a minimum performance level.

Changes the signature of the determine_rate callback by adding the
parameters min_rate and max_rate.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[sboyd@codeaurora.org: set req_rate in __clk_init]
Signed-off-by: Michael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: min/max rate for sun6i_ahb1_clk_determine_rate
                        migrated clk-private.h changes to clk.c]
2015-02-02 14:23:42 -08:00
Linus Torvalds bfc7249cc2 Please consider pulling the clk framework changes toward 3.19. It is
much later than usual due to several last minute bugs that had to be
 addressed. As usual the majority of changes are new drivers and
 modifications to existing drivers. The core recieved many fixes along
 with the groundwork for several large changes coming in the future which
 will better parition clock providers from clock consumers.
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Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux

Pull clk framework updates from Mike Turquette:
 "This is much later than usual due to several last minute bugs that had
  to be addressed.  As usual the majority of changes are new drivers and
  modifications to existing drivers.  The core recieved many fixes along
  with the groundwork for several large changes coming in the future
  which will better parition clock providers from clock consumers"

* tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
  clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
  ARM: OMAP3: clock: fix boot breakage in legacy mode
  ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
  clk: Really fix deadlock with mmap_sem
  clk: mmp: fix sparse non static symbol warning
  clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
  clk: change clk_debugfs_add_file to take a struct clk_hw
  clk: Don't expose __clk_get_accuracy
  clk: Don't try to use a struct clk* after it could have been freed
  clk: Remove unused function __clk_get_prepare_count
  clk: samsung: Fix double add of syscore ops after driver rebind
  clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
  clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
  clk: samsung: remove unnecessary inclusion of header files from clk.h
  clk: samsung: remove unnecessary CONFIG_OF from clk.c
  clk: samsung: Spelling s/bwtween/between/
  clk: rockchip: Add support for the mmc clock phases using the framework
  clk: rockchip: add bindings for the mmc clocks
  clk: rockchip: rk3288 export i2s0_clkout for use in DT
  clk: rockchip: use clock ID for DMC (memory controller) on rk3288
  ...
2014-12-20 16:42:36 -08:00
Tomeu Vizoso 646cafc6aa clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
This is in preparation for clock providers to not have to deal with struct clk.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
2014-12-03 16:21:37 -08:00
Ralf Baechle 15d45cce3a MIPS: Replace use of phys_t with phys_addr_t.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24 22:47:31 +01:00
Ralf Baechle 34adb28d50 MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24 22:46:44 +01:00
Tomeu Vizoso 24c71c83ed MIPS: Alchemy: Remove direct access to prepare_count field of struct clk
Replacing it with a call to __clk_is_prepared(), which isn't entirely
equivalent but in practice shouldn't matter.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8120/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-24 07:45:17 +01:00
Manuel Lauss c64bb5f0c2 MIPS: Alchemy: DB1300: Add touch penirq support
wire up the WM9713 pendown irq support.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7563/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-09-22 13:35:47 +02:00
Manuel Lauss c02a505e5a MIPS: Alchemy: DB1xxx: Explicitly set 50MHz clock for I2C/SPI units.
Add an explicit call to set the desired rate to get the correct
clock routing for the PSC clocks.  It wasn't broken before, but
now it's less affected by bootloader changes.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7554/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-09-22 13:35:47 +02:00
Manuel Lauss 092ea46608 MIPS: Alchemy: devboards: sit and spin after poweroff
On boards which don't support poweroff, systemd complains about this fact.
In case poweroff fails, just sit and spin in the wait loop.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7558/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-09-22 13:35:46 +02:00
Manuel Lauss 293076f300 MIPS: Alchemy: Fix db1200 PSC clock enablement
Enable PSC0 (I2C/SPI) clock and leave PSC1 (Audio) alone.  This patch
restores functionality to both Audio and I2C/SPI.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7544/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19 13:30:47 +02:00
Manuel Lauss 72e1e2a30f MIPS: Alchemy: remove old clock support
With the clock framework in place, remove unused functions and bits,
and drop the CLK_IGNORE_UNUSED flag, which is now unneeded.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7473/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 14:12:00 +02:00
Manuel Lauss 6b1889c14b MIPS: Alchemy: au1100fb: use clk framework
Use the clock framework to en/disable the clock to the au1100
framebuffer device.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7474/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 14:10:39 +02:00
Manuel Lauss 415e0fec7a MIPS: Alchemy: db1x00: use clk framework
Make use of the clk framework to set up and enable all PSC clocks.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7469/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 14:10:00 +02:00
Manuel Lauss 3feae78416 MIPS: Alchemy: usb: use clk framework
Add use of the common clock framework to set and enable the 48MHz
clock source for the onchip OHCI and UDC blocks.

Tested on a DB1500.  (Au1200 and Au1300 use an external 48MHz crystal).

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7467/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 14:09:21 +02:00
Manuel Lauss 5a2fb71e73 MIPS: Alchemy: platform: use clk framework for uarts
Use the clock framework to get the rate of the peripheral clock.
Remove the now obsolete get_uart_baud_base function.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7468/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 14:09:02 +02:00
Manuel Lauss 474402291a MIPS: Alchemy: clock framework integration of onchip clocks
This patch introduces common clock framework integration for all
configurable on-chip clocks on Alchemy chips:

- 2 or 3 PLLs which generate integer multiples of the root rate 12MHz,
- 6 dividers which take one of the 3 PLLs as input and divide their
  rate by either multiples of 2 or 1 (Au1300).
- another bank of up to 6 muxes which take either one of the 6
  above dividers or one of the PLLs directly and divide their rate
  further by 1, 2, 3 or 4.
- a few other sources which are used by onchip peripherals and are
  informational.

This implementation will take the clock tree as it was set up
by boot firmware: all in-kernel boards should continue to work
without having to set up the clock tree in board code.

CLK_IGNORE_DISABLED will be removed once all drivers have been
converted.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7466/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 14:08:42 +02:00
Manuel Lauss 2f73bfbe08 MIPS: Alchemy: remove au_read/write/sync
replace au_read/write/sync with __raw_read/write and wmb.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7465/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 13:56:34 +02:00
Manuel Lauss 9cf12167e9 MIPS: Alchemy: add helpers to access static memory ctrl registers.
This patch changes the static memory controller registers to offsets
from base, prefixes them with AU1000_ to avoid silent failures due to
changed addresses and introduces helpers to access them.

No functional changes, comparing assembly of a few select functions shows
no differences.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7463/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 13:53:52 +02:00
Manuel Lauss 1d09de7dc7 MIPS: Alchemy: introduce helpers to access SYS register block.
This patch changes all absolute SYS_XY registers to offsets from the
SYS block base, prefixes them with AU1000 to avoid silent failures due
to changed addresses, and introduces helper functions to read/write
them.

No functional changes, comparing assembly of a few select functions shows
no differences.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7464/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-30 13:53:28 +02:00
Daniel Walter 8ca635bfc0 MIPS: Replace obsolete strict_strto call with kstrto
Signed-off-by: Daniel Walter <dwalter@google.com>
Cc: linux-kernel@vger.kernel.org
Cc: richard@nod.at
Cc: akpm@linux-foundation.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-06-04 22:50:40 +02:00
Manuel Lauss 739cec8f18 MIPS: Alchemy: Default to noncoherent IO on Au1200 AB
CONFIG_DMA_COHERENT is no longer set; default to noncoherent io on
Au1200 revision AB to make USB work.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6745/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-28 11:04:48 +02:00
Ralf Baechle ade63aada7 Merge branch '3.14-fixes' into mips-for-linux-next 2014-03-31 18:17:33 +02:00
Ralf Baechle a809d46066 MIPS: Fix gigaton of warning building with microMIPS.
With binutils 2.24 the attempt to switch with microMIPS mode to MIPS III
mode through .set mips3 results in *lots* of warnings like

{standard input}: Assembler messages:
{standard input}:397: Warning: the 64-bit MIPS architecture does not support the `smartmips' extension

during a kernel build.  Fixed by using .set arch=r4000 instead.

This breaks support for building the kernel with binutils 2.13 which
was supported for 32 bit kernels only anyway and 2.14 which was a bad
vintage for MIPS anyway.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-31 18:17:12 +02:00
Manuel Lauss 54ff4a1d17 MIPS: Alchemy: pata_platform for DB1200
The au1xxx-ide driver isn't any faster than pata_platform since it
spends a lot of time busy waiting for DMA to finish; faster PIO/DMA
modes only work on the db1200 with a certain cpu speed, UDMA is broken,
and finally the old IDE layer is on death row, so time to switch to
the newer ATA layer.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6662/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26 23:09:21 +01:00
Manuel Lauss a16afa5327 MIPS: Alchemy: fold mach-db1xxx/db1x00 headers into board code
Merge the db1200.h and db1300.h headers into their only users.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6660/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26 23:09:21 +01:00
Manuel Lauss 970e268d6e MIPS: Alchemy: Unify Devboard support.
This patch merges support for all DB1xxx and PB1xxx
boards into a single image, along with a new single defconfig
for them.

Run-tested on DB1300 and DB1500.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6577/
Patchwork: https://patchwork.linux-mips.org/patch/6659/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26 23:09:21 +01:00
Manuel Lauss 88e9a93c9d MIPS: Alchemy: Determine cohereny at runtime based on cpu type
All Alchemy chips have coherent DMA, but for example the USB or AC97
peripherals on the Au1000/1500/1100 are not.
This patch uses DMA_MAYBE_COHERENT on Alchemy and sets coherentio based
on CPU type.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6576/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-26 23:09:21 +01:00
Manuel Lauss d334c2b9de MIPS: Alchemy: Fix unchecked kstrtoul return value
enabled __must_check logic triggers a build error for mtx1 and gpr
in the prom init code.  Fix by checking the kstrtoul() return value.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6574/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-06 20:52:28 +01:00
Manuel Lauss 4294ad1c52 MIPS: Alchemy: Fix DB1100 GPIO registration
With CONFIG_GPIOLIB=y gpios need to be requested before they can be
modified.  Request the SD carddetect pins, and drop the SPI direction
setup, as the driver does that for us anyway.  This gets rid of a
lot of WARN_ON()s triggered by GPIO core, and restores functionality
of the touschreen controller.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6497/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-02-04 13:18:02 +01:00
Paul Gortmaker 3b2663ca84 mips: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6320/
2014-01-24 22:39:56 +01:00
Ralf Baechle f7777dcc75 MIPS: Panic messages should not end in \n.
Panic() is going to add a \n itself and it's annoying if a panic message rolls
of the screen on a device with no scrollback.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29 21:24:19 +01:00
Bartlomiej Zolnierkiewicz 08ebb250ef MIPS: Alchemy: MTX-1: fix incorrect placement of __initdata tag
__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5934/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-30 15:14:07 +02:00