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44881 Commits (166db83e0c127969f3e7acb0c9460251b107dc53)

Author SHA1 Message Date
Krzysztof Halasa 88e9da9a2a CNS3xxx: Fix PCI cns3xxx_write_config()
The "where" offset was added twice, fix it.

Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Fixes: 498a92d425 ("ARM: cns3xxx: pci: avoid potential stack overflow")
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-12 17:02:06 -08:00
Lars Persson b2af8e58a0 ARM: dts: artpec: dual-license on artpec6.dtsi
Relaxed the license on the dtsi to permit use in other projects.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-12 16:15:47 -08:00
Linus Walleij 7ad86d612b ARM: dts: ux500: add synaptics RMI4 for Ux500 TVK DT
This adds the Synaptics RMI4 touchscreen to the Ux500 TVK
user interface board. Tested on the U8500 HREFv60plus with
the TVK UIB.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-12 16:15:46 -08:00
Linus Torvalds 2a4fb270da ARM: SoC fixes
Two more fixes for 4.5:
 
  - One is a fix for OMAP that is urgently needed to avoid DRA7xx chips from
    premature aging, by always keeping the Ethernet clock enabled.
 
  - The other solves a I/O memory layout issue on Armada, where SROM and PCI
    memory windows were conflicting in some configurations.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Two more fixes for 4.5:

   - One is a fix for OMAP that is urgently needed to avoid DRA7xx chips
     from premature aging, by always keeping the Ethernet clock enabled.

   - The other solves a I/O memory layout issue on Armada, where SROM
     and PCI memory windows were conflicting in some configurations"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
2016-03-11 12:35:54 -08:00
Thomas Petazzoni d7d5a43c0d ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window
When the Crypto SRAM mappings were added to the Device Tree files
describing the Armada XP boards in commit c466d997bb ("ARM: mvebu:
define crypto SRAM ranges for all armada-xp boards"), the fact that
those mappings were overlaping with the PCIe memory aperture was
overlooked. Due to this, we currently have for all Armada XP platforms
a situation that looks like this:

Memory mapping on Armada XP boards with internal registers at
0xf1000000:

 - 0x00000000 -> 0xf0000000	3.75G 	RAM
 - 0xf0000000 -> 0xf1000000	16M	NOR flashes (AXP GP / AXP DB)
 - 0xf1000000 -> 0xf1100000	1M	internal registers
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory aperture
 - 0xf8100000 -> 0xf8110000	64KB	Crypto SRAM #0	=> OVERLAPS WITH PCIE !
 - 0xf8110000 -> 0xf8120000	64KB	Crypto SRAM #1	=> OVERLAPS WITH PCIE !
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O aperture
 - 0xfff0000  -> 0xffffffff	1M	BootROM

The overlap means that when PCIe devices are added, depending on their
memory window needs, they might or might not be mapped into the
physical address space. Indeed, they will not be mapped if the area
allocated in the PCIe memory aperture by the PCI core overlaps with
one of the Crypto SRAM. Typically, a Intel IGB PCIe NIC that needs 8MB
of PCIe memory will see its PCIe memory window allocated from
0xf80000000 for 8MB, which overlaps with the Crypto SRAM windows. Due
to this, the PCIe window is not created, and any attempt to access the
PCIe window makes the kernel explode:

[    3.302213] igb: Copyright (c) 2007-2014 Intel Corporation.
[    3.307841] pci 0000:00:09.0: enabling device (0140 -> 0143)
[    3.313539] mvebu_mbus: cannot add window '4:f8', conflicts with another window
[    3.320870] mvebu-pcie soc:pcie-controller: Could not create MBus window at [mem 0xf8000000-0xf87fffff]: -22
[    3.330811] Unhandled fault: external abort on non-linefetch (0x1008) at 0xf08c0018

This problem does not occur on Armada 370 boards, because we use the
following memory mapping (for boards that have internal registers at
0xf1000000):

 - 0x00000000 -> 0xf0000000	3.75G 	RAM
 - 0xf0000000 -> 0xf1000000	16M	NOR flashes (AXP GP / AXP DB)
 - 0xf1000000 -> 0xf1100000	1M	internal registers
 - 0xf1100000 -> 0xf1110000	64KB	Crypto SRAM #0 => OK !
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O
 - 0xfff0000  -> 0xffffffff	1M	BootROM

Obviously, the solution is to align the location of the Crypto SRAM
mappings of Armada XP to be similar with the ones on Armada 370, i.e
have them between the "internal registers" area and the beginning of
the PCIe aperture.

However, we have a special case with the OpenBlocks AX3-4 platform,
which has a 128 MB NOR flash. Currently, this NOR flash is mapped from
0xf0000000 to 0xf8000000. This is possible because on OpenBlocks
AX3-4, the internal registers are not at 0xf1000000. And this explains
why the Crypto SRAM mappings were not configured at the same place on
Armada XP.

Hence, the solution is two-fold:

 (1) Move the NOR flash mapping on Armada XP OpenBlocks AX3-4 from
     0xe8000000 to 0xf0000000. This frees the 0xf0000000 ->
     0xf80000000 space.

 (2) Move the Crypto SRAM mappings on Armada XP to be similar to
     Armada 370 (except of course that Armada XP has two Crypto SRAM
     and not one).

After this patch, the memory mapping on Armada XP boards with
registers at 0xf1 is:

 - 0x00000000 -> 0xf0000000	3.75G 	RAM
 - 0xf0000000 -> 0xf1000000	16M	NOR flashes (AXP GP / AXP DB)
 - 0xf1000000 -> 0xf1100000	1M	internal registers
 - 0xf1100000 -> 0xf1110000	64KB	Crypto SRAM #0
 - 0xf1110000 -> 0xf1120000	64KB	Crypto SRAM #1
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O
 - 0xfff0000  -> 0xffffffff	1M	BootROM

And the memory mapping for the special case of the OpenBlocks AX3-4
(internal registers at 0xd0000000, NOR of 128 MB):

 - 0x00000000 -> 0xc0000000	3G 	RAM
 - 0xd0000000 -> 0xd1000000	1M	internal registers
 - 0xe800000  -> 0xf0000000	128M	NOR flash
 - 0xf1100000 -> 0xf1110000	64KB	Crypto SRAM #0
 - 0xf1110000 -> 0xf1120000	64KB	Crypto SRAM #1
 - 0xf8000000 -> 0xffe0000	126M	PCIe memory
 - 0xffe00000 -> 0xfff00000	1M	PCIe I/O
 - 0xfff0000  -> 0xffffffff	1M	BootROM

Fixes: c466d997bb ("ARM: mvebu: define crypto SRAM ranges for all armada-xp boards")
Reported-by: Phil Sutter <phil@nwl.cc>
Cc: Phil Sutter <phil@nwl.cc>
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-11 11:49:55 -08:00
Linus Walleij cc998d8bc7 Linux 4.5-rc5
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Merge tag 'v4.5-rc5' into devel

Linux 4.5-rc5
2016-03-10 09:29:25 +07:00
Olof Johansson 1dea581f86 ARM: OMAP2+: critical DRA7xx fix for v4.5-rc
Force the DRA7xx Ethernet internal clock source to stay enabled
 per TI erratum i877:
 
 http://www.ti.com/lit/er/sprz429h/sprz429h.pdf
 
 Otherwise, if the Ethernet internal clock source is disabled, the
 chip will age prematurely, and the RGMII I/O timing will soon
 fail to meet the delay time and skew specifications for 1000Mbps
 Ethernet.
 
 This fix should go in as soon as possible.
 
 Basic build, boot, and PM test results are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/
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Merge tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

ARM: OMAP2+: critical DRA7xx fix for v4.5-rc

Force the DRA7xx Ethernet internal clock source to stay enabled
per TI erratum i877:

http://www.ti.com/lit/er/sprz429h/sprz429h.pdf

Otherwise, if the Ethernet internal clock source is disabled, the
chip will age prematurely, and the RGMII I/O timing will soon
fail to meet the delay time and skew specifications for 1000Mbps
Ethernet.

This fix should go in as soon as possible.

Basic build, boot, and PM test results are available here:

http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/

* tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-09 14:15:31 -08:00
Luis R. Rodriguez f6e45661f9 dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
Rename dma_*_writecombine() to dma_*_wc(), so that the naming
is coherent across the various write-combining APIs. Keep the
old names for compatibility for a while, these can be removed
at a later time. A guard is left to enable backporting of the
rename, and later remove of the old mapping defines seemlessly.

Build tested successfully with allmodconfig.

The following Coccinelle SmPL patch was used for this simple
transformation:

@ rename_dma_alloc_writecombine @
expression dev, size, dma_addr, gfp;
@@

-dma_alloc_writecombine(dev, size, dma_addr, gfp)
+dma_alloc_wc(dev, size, dma_addr, gfp)

@ rename_dma_free_writecombine @
expression dev, size, cpu_addr, dma_addr;
@@

-dma_free_writecombine(dev, size, cpu_addr, dma_addr)
+dma_free_wc(dev, size, cpu_addr, dma_addr)

@ rename_dma_mmap_writecombine @
expression dev, vma, cpu_addr, dma_addr, size;
@@

-dma_mmap_writecombine(dev, vma, cpu_addr, dma_addr, size)
+dma_mmap_wc(dev, vma, cpu_addr, dma_addr, size)

We also keep the old names as compatibility helpers, and
guard against their definition to make backporting easier.

Generated-by: Coccinelle SmPL
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: airlied@linux.ie
Cc: akpm@linux-foundation.org
Cc: benh@kernel.crashing.org
Cc: bhelgaas@google.com
Cc: bp@suse.de
Cc: dan.j.williams@intel.com
Cc: daniel.vetter@ffwll.ch
Cc: dhowells@redhat.com
Cc: julia.lawall@lip6.fr
Cc: konrad.wilk@oracle.com
Cc: linux-fbdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: luto@amacapital.net
Cc: mst@redhat.com
Cc: tomi.valkeinen@ti.com
Cc: toshi.kani@hp.com
Cc: vinod.koul@intel.com
Cc: xen-devel@lists.xensource.com
Link: http://lkml.kernel.org/r/1453516462-4844-1-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-09 14:57:51 +01:00
Linus Walleij 0bae2f1732 Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel 2016-03-09 17:40:37 +07:00
Bogicevic Sasa 5f8fc43217 PCI: Include pci/pcie/Kconfig directly from pci/Kconfig
Include pci/pcie/Kconfig directly from pci/Kconfig, so arches don't
have to source both pci/Kconfig and pci/pcie/Kconfig.

Note that this effectively adds pci/pcie/Kconfig to the following
arches, because they already sourced drivers/pci/Kconfig but they
previously did not source drivers/pci/pcie/Kconfig:

  alpha
  avr32
  blackfin
  frv
  m32r
  m68k
  microblaze
  mn10300
  parisc
  sparc
  unicore32
  xtensa

[bhelgaas: changelog, source pci/pcie/Kconfig at top of pci/Kconfig, whitespace]
Signed-off-by: Sasa Bogicevic <brutallesale@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-03-08 14:36:48 -06:00
David S. Miller 810813c47a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of overlapping changes, as well as one instance
(vxlan) of a bug fix in 'net' overlapping with code movement
in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 12:34:12 -05:00
Ingo Molnar fe36d8912c Merge branch 'linus' into irq/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-08 12:26:07 +01:00
Christoph Hellwig bc4b024a8b PCI: Move pci_dma_* helpers to common code
For a long time all architectures implement the pci_dma_* functions using
the generic DMA API, and they all use the same header to do so.

Move this header, pci-dma-compat.h, to include/linux and include it from
the generic pci.h instead of having each arch duplicate this include.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-03-07 10:40:02 -06:00
Mugunthan V N 0f514e6907 ARM: dts: dra7: do not gate cpsw clock due to errata i877
Errata id: i877

Description:
------------
The RGMII 1000 Mbps Transmit timing is based on the output clock
(rgmiin_txc) being driven relative to the rising edge of an internal
clock and the output control/data (rgmiin_txctl/txd) being driven relative
to the falling edge of an internal clock source. If the internal clock
source is allowed to be static low (i.e., disabled) for an extended period
of time then when the clock is actually enabled the timing delta between
the rising edge and falling edge can change over the lifetime of the
device. This can result in the device switching characteristics degrading
over time, and eventually failing to meet the Data Manual Delay Time/Skew
specs.
To maintain RGMII 1000 Mbps IO Timings, SW should minimize the
duration that the Ethernet internal clock source is disabled. Note that
the device reset state for the Ethernet clock is "disabled".
Other RGMII modes (10 Mbps, 100Mbps) are not affected

Workaround:
-----------
If the SoC Ethernet interface(s) are used in RGMII mode at 1000 Mbps,
SW should minimize the time the Ethernet internal clock source is disabled
to a maximum of 200 hours in a device life cycle. This is done by enabling
the clock as early as possible in IPL (QNX) or SPL/u-boot (Linux/Android)
by setting the register CM_GMAC_CLKSTCTRL[1:0]CLKTRCTRL = 0x2:SW_WKUP.

So, do not allow to gate the cpsw clocks using ti,no-idle property in
cpsw node assuming 1000 Mbps is being used all the time. If someone does
not need 1000 Mbps and wants to gate clocks to cpsw, this property needs
to be deleted in their respective board files.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-07 01:41:22 -07:00
Lokesh Vutla 2e18f5a1bc ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
Introduce a dt property, ti,no-idle, that prevents an IP to idle at any
point. This is to handle Errata i877, which tells that GMAC clocks
cannot be disabled.

Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-07 01:41:21 -07:00
Linus Torvalds d55e08c844 ARM: SoC fixes
Tiny fixes branch this week, in fact only one patch.
 
 Turns out the USB support for a Renesas board was developed on a pre-release
 board that ended up being changed before shipping. To avoid breakage on those
 boards, and avoid confusion, it's a reasonable idea to patch now instead of
 later. There are no known users of the pre-release variant any more.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fix from Olof Johansson:
 "Tiny fixes branch this week, in fact only one patch.

  Turns out the USB support for a Renesas board was developed on a
  pre-release board that ended up being changed before shipping.  To
  avoid breakage on those boards, and avoid confusion, it's a reasonable
  idea to patch now instead of later.  There are no known users of the
  pre-release variant any more"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: porter: remove enable prop from HS-USB device node
2016-03-06 14:14:54 -08:00
Linus Torvalds dd273a8071 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Just two ARM fixes this time: one to fix the hyp-stub for older ARM
  CPUs, and another to fix the set_memory_xx() permission functions to
  deal with zero sizes correctly"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8544/1: set_memory_xx fixes
  ARM: 8534/1: virt: fix hyp-stub build for pre-ARMv7 CPUs
2016-03-06 13:51:27 -08:00
Sanchayan Maity 0aa8a99680 ARM: dts: vfxxx: Add iio_hwmon node for ADC temperature channel
Add iio-hwmon node to expose the temperature channel on Vybrid as
hardware monitor device using the iio_hwmon driver.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Sanchayan Maity 0b452ccca6 ARM: dts: Change iio_hwmon nodes to use hypen in node names
Change iio_hwmon nodes to use hypen in node names instead of
underscore.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Russell King 1b3bf84797 Merge branches 'amba', 'fixes', 'misc' and 'tauros2' into for-next 2016-03-04 23:36:02 +00:00
Rabin Vincent b426867612 ARM: 8546/1: dma-mapping: refactor to fix coherent+cma+gfp=0
Given a device which uses arm_coherent_dma_ops and on which
dev_get_cma_area(dev) returns non-NULL, the following usage of the DMA
API with gfp=0 results in memory corruption and a memory leak.

 p = dma_alloc_coherent(dev, sz, &dma, 0);
 if (p)
 	dma_free_coherent(dev, sz, p, dma);

The memory leak is because the alloc allocates using
__alloc_simple_buffer() but the free attempts
dma_release_from_contiguous() which does not do free anything since the
page is not in the CMA area.

The memory corruption is because the free calls __dma_remap() on a page
which is backed by only first level page tables.  The
apply_to_page_range() + __dma_update_pte() loop ends up interpreting the
section mapping as an addresses to a second level page table and writing
the new PTE to memory which is not used by page tables.

We don't have access to the GFP flags used for allocation in the free
function.  Fix this by adding allocator backends and using this
information in the free function so that we always use the correct
release routine.

Fixes: 21caf3a7 ("ARM: 8398/1: arm DMA: Fix allocation from CMA for coherent DMA")
Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-03-04 23:35:17 +00:00
Rabin Vincent 19e6e5e539 ARM: 8547/1: dma-mapping: store buffer information
Keep a list of allocated DMA buffers so that we can store metadata in
alloc() which we later need in free().

Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-03-04 23:35:17 +00:00
Mika Penttilä f474c8c857 ARM: 8544/1: set_memory_xx fixes
Allow zero size updates. This makes set_memory_xx() consistent with x86, s390 and arm64 and makes apply_to_page_range() not to BUG() when loading modules.

Signed-off-by: Mika Penttilä mika.penttila@nextfour.com
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-03-04 23:32:45 +00:00
Arnd Bergmann c5418a0b98 usb: gadget: pxa25x_udc: move register definitions from arch
ixp4xx and pxa25x both use this driver and provide a slightly
different set of register definitions for it. Aside from that,
the definition in the ixp4xx-regs.h header conflicts with the
on in the pxa27x device driver when compile-testing that:

In file included from ../drivers/usb/gadget/udc/pxa27x_udc.c:37:0:
../drivers/usb/gadget/udc/pxa27x_udc.h:26:0: warning: "UDCCR" redefined
 #define UDCCR  0x0000  /* UDC Control Register */
 ^
In file included from ../arch/arm/mach-ixp4xx/include/mach/hardware.h:27:0,
                 from ../arch/arm/mach-ixp4xx/include/mach/io.h:18,
                 from ../arch/arm/include/asm/io.h:194,
                 from ../include/linux/io.h:25,
                 from ../include/linux/irq.h:24,
                 from ../drivers/usb/gadget/udc/pxa27x_udc.c:23:
../arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h:415:0: note: this is the location of the previous definition
 #define UDCCR  IXP4XX_USB_REG(IXP4XX_USB_BASE_VIRT+0x0000)

This addresses both issues by moving all the definitions into the
pxa25x_udc driver itself. It turns out the only difference between
them was 'UDCCS_IO_ROF', and that could well be a mistake when it
was incorrectly copied from pxa25x to ixp4xx.

Acked-by: Krzysztof Halasa <khalasa@piap.pl>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:28 +02:00
Ingo Molnar bc94b99636 Linux 4.5-rc6
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Merge tag 'v4.5-rc6' into core/resources, to resolve conflict

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-04 12:12:08 +01:00
Linus Torvalds c2687cf950 * ARM/MIPS: Fixes for ioctls when copy_from_user returns nonzero
* x86: Small fix for Skylake TSC scaling
 * x86: Improved fix for last week's missed hardware breakpoint bug
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 - ARM/MIPS: Fixes for ioctls when copy_from_user returns nonzero
 - x86: Small fix for Skylake TSC scaling
 - x86: Improved fix for last week's missed hardware breakpoint bug

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: x86: Update tsc multiplier on change.
  mips/kvm: fix ioctl error handling
  arm/arm64: KVM: Fix ioctl error handling
  KVM: x86: fix root cause for missed hardware breakpoints
2016-03-03 11:54:56 -08:00
Dmitry Torokhov a9e340dce3 Input: rotary_encoder - move away from platform data structure
Drop support for platform data passed via a C-structure and switch to
device properties instead, which should make the driver compatible with all
platforms: OF, ACPI and static boards. Static boards should use property
sets to communicate device parameters to the driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 15:48:05 -08:00
Arnd Bergmann 0d8ec17ca3 Highlights:
-----------
  - Add a new stm32f469 SoC
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Merge tag 'stm32-soc-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32 into next/soc

Merge "STM32 SoC updates for v4.6 #2" from Maxime Coquelin:

Highlights:
-----------
 - Add a new stm32f469 SoC

* tag 'stm32-soc-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32:
  ARM: stm32: Identify a new SoC - STM32F469
2016-03-02 23:36:17 +01:00
Arnd Bergmann 3fcb230d14 SoC related changes for omaps for v4.6 merge window:
- Enable runtime revision detection for dra7 to avoid multiple dts
   files for various variants
 
 - Add dma_slave_map for omap1/2/3 legacy mode booting
 
 - Add RTC interconnect target data for ti81xx and am43x
 
 - Add custom reset handler for PCIeSS
 
 - Add eDMA interconnect target data for dra7
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Merge tag 'omap-for-v4.6/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Merge "omap soc changes for v4.6 merge window" from Tony Lindgren:

SoC related changes for omaps for v4.6 merge window:

- Enable runtime revision detection for dra7 to avoid multiple dts
  files for various variants

- Add dma_slave_map for omap1/2/3 legacy mode booting

- Add RTC interconnect target data for ti81xx and am43x

- Add custom reset handler for PCIeSS

- Add eDMA interconnect target data for dra7

* tag 'omap-for-v4.6/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
  ARM: OMAP2+: Add rtc hwmod configuration for ti81xx
  ARM: DRA7: hwmod: Add custom reset handler for PCIeSS
  ARM: OMAP2+: DMA: Provide dma_slave_map to omap-dma for legacy boot
  ARM: OMAP1: DMA: Provide dma_slave_map to omap-dma
  ARM: OMAP: DRA7: Make use of omap_revision information for soc_is* calls
  ARM: AM43XX: hwmod: Add rtc hwmod
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ARM: OMAP2+: hwmod data: Add SSI data for omap36xx
2016-03-02 23:32:24 +01:00
Arnd Bergmann f3a186fbfd The i.MX SoC update for 4.6:
- Enable big endian mode support for i.MX platform
 - Add support for i.MX6QP SoC which is the latest i.MX6 family addition
 - Add basic suspend/resume support for i.MX25
 - A couple of i.MX7D support updates
 - A few random code cleanups
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Merge tag 'imx-soc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

Merge "i.MX SoC update for 4.6" from Shawn Guo:

- Enable big endian mode support for i.MX platform
- Add support for i.MX6QP SoC which is the latest i.MX6 family addition
- Add basic suspend/resume support for i.MX25
- A couple of i.MX7D support updates
- A few random code cleanups

* tag 'imx-soc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: Make reset_control_ops const
  ARM: imx: Do L2 errata only if the L2 cache isn't enabled
  ARM: imx: select ARM_CPU_SUSPEND only for imx6
  ARM: mx25: Add basic suspend/resume support
  ARM: imx: Add msl code support for imx6qp
  ARM: imx: enable big endian mode
  ARM: imx: use endian-safe readl/readw/writel/writew
  ARM: imx7d: correct chip version information
  ARM: imx: select HAVE_ARM_ARCH_TIMER if selected i.MX7D
  ARM: imx6: fix cleanup path in imx6q_suspend_init()
2016-03-02 23:30:17 +01:00
Arnd Bergmann 452d9a0feb Fixes for omaps for v4.6 merge window that are not urgent
for the v4.5-rc cycle:
 
 - Add back optimized cpuidle parameters for 34xx that were
   incorrecly removed earlier with cpuidle cleanup
 
 - Fix SSI for omap36xx to get modem working on N950/N9
 
 - A series of omap hwmod fixes via Paul Walmsley <paul@pwsan.com>
   to fix SSI for omap36xx for modem on N950/N9, fix for
   OCP2SCP sysconfig idle mode, and reset data for PCIe on
   dra7
 
 - Fix out of range register access for omap3 control module
   if syscon max_register is initialized like v4.6 will be
   doing
 
 - Fix l4_ls interconnect clocks for 81xx, it should always
   be sysclk6_ck
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Merge tag 'omap-for-v4.6/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical

Merge "omap non-urgent fixes for v4.6 merge window" from Tony Lindgren:

Fixes for omaps for v4.6 merge window that are not urgent
for the v4.5-rc cycle:

- Add back optimized cpuidle parameters for 34xx that were
  incorrecly removed earlier with cpuidle cleanup

- Fix SSI for omap36xx to get modem working on N950/N9

- A series of omap hwmod fixes via Paul Walmsley <paul@pwsan.com>
  to fix SSI for omap36xx for modem on N950/N9, fix for
  OCP2SCP sysconfig idle mode, and reset data for PCIe on
  dra7

- Fix out of range register access for omap3 control module
  if syscon max_register is initialized like v4.6 will be
  doing

- Fix l4_ls interconnect clocks for 81xx, it should always
  be sysclk6_ck

* tag 'omap-for-v4.6/fixes-not-urgent-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix hwmod clock for l4_ls
  ARM: OMAP2+: Fix out of range register access with syscon_config.max_register
  ARM: OMAP3: Add cpuidle parameters table for omap3430
  ARM: DRA7: hwmod: Add reset data for PCIe
  ARM: DRA7: hwmod: Fix OCP2SCP sysconfig
  ARM: OMAP2+: hwmod data: Add SSI data for omap36xx
2016-03-02 23:28:38 +01:00
Arnd Bergmann f3c87e99f4 Second Round of Renesas ARM Based SoC DT Fixes for v4.5
* remove enable prop from HS-USB device node on porter board
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Merge tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Second Round of Renesas ARM Based SoC DT Fixes for v4.5" from Simon Horman:

* remove enable prop from HS-USB device node on porter board

* tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: dts: porter: remove enable prop from HS-USB device node
2016-03-02 23:24:33 +01:00
Arnd Bergmann d36694b659 Second Round of Renesas ARM Based SoC DT Fixes for v4.5
* remove enable prop from HS-USB device node on porter board
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Merge tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt

Merge "Second Round of Renesas ARM Based SoC DT Fixes for v4.5" from Simon Horman:

* remove enable prop from HS-USB device node on porter board

* tag 'renesas-dt-fixes2-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: dts: porter: remove enable prop from HS-USB device node
2016-03-02 23:23:22 +01:00
Arnd Bergmann fa54ae137a Highlights:
-----------
  - Enable GPIO led driver in stm32_defconfig
  - Introduce a config fragment to override RAM base address
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Merge tag 'stm32-defconfig-for-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32 into next/defconfig

Merge "STM32 defconfig updates for v4.6 #1" from Maxime Coquelin:

Highlights:
-----------
 - Enable GPIO led driver in stm32_defconfig
 - Introduce a config fragment to override RAM base address

* tag 'stm32-defconfig-for-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32:
  ARM: configs: Add new config fragment to change RAM start point
  ARM: config: Enable GPIO Led driver in stm32_defconfig
2016-03-02 23:20:32 +01:00
Arnd Bergmann 4a6f791c35 Defconfig changes for omap2plus_defconfig and multi_v7_defconfig
for v4.6 merge window:
 
 - Enable IOMMU and omap3isp so we can enable TVP5150/1 video
   decoder
 
 - Enable at24 eeprom for revision detection on beagle-x15
 
 - Enable LP872x regulator for both omap2plus_defconfig and
   multi_v7_defconfig as it's needed at least by LG Optimus
   Black
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Merge tag 'omap-for-v4.6/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/defconfig

Merge "omap defconfig changes for v4.6 merge window" from Tony Lindgren:

Defconfig changes for omap2plus_defconfig and multi_v7_defconfig
for v4.6 merge window:

- Enable IOMMU and omap3isp so we can enable TVP5150/1 video
  decoder

- Enable at24 eeprom for revision detection on beagle-x15

- Enable LP872x regulator for both omap2plus_defconfig and
  multi_v7_defconfig as it's needed at least by LG Optimus
  Black

* tag 'omap-for-v4.6/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: multi_v7_defconfig: Enable LP872x regulator support
  ARM: omap2plus_defconfig: Enable LP872x regulator support
  ARM: omap2plus_defconfig: Enable AT24 eeprom
  ARM: omap2plus_defconfig: Enable TI TVP5150 video decoder support
  ARM: omap2plus_defconfig: Enable ISP support and dependencies
  ARM: omap2plus_defconfig: Enable OMAP IOMMU support
2016-03-02 23:19:17 +01:00
Arnd Bergmann 620a60075b The i.MX defconfig update for 4.6:
- Enable i.MX25 Touchscreen controller and ADC support
 - Enable NVMEM OCOTP driver support
 - Clean up mxs_defconfig and imx_v4_v5_defconfig
 - Enable initramfs support
 - Enable PSCI, SAHARA and more Vybrid driver support
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Merge tag 'imx-defconfig-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/defconfig

Merge "i.MX defconfig update for 4.6" from Shawn Guo:

- Enable i.MX25 Touchscreen controller and ADC support
- Enable NVMEM OCOTP driver support
- Clean up mxs_defconfig and imx_v4_v5_defconfig
- Enable initramfs support
- Enable PSCI, SAHARA and more Vybrid driver support

* tag 'imx-defconfig-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx_v4_v5_defconfig: Enable initramfs support
  ARM: imx_v4_v5_defconfig: Cleanup imx_v4_v5_defconfig
  ARM: mxs_defconfig: Enable initramfs support
  ARM: mxs_defconfig: Cleanup mxs_defconfig
  ARM: imx_v6_v7_defconfig: enable useful configurations for Vybrid
  ARM: imx_v6_v7_defconfig: Select CONFIG_CRYPTO_DEV_SAHARA
  ARM: imx_v4_v5_defconfig: Add I.MX25 Touchscreen controller and ADC support.
  ARM: mxs_defconfig: Select CONFIG_NVMEM_MXS_OCOTP
  ARM: imx_v6_v7_defconfig: Select CONFIG_NVMEM_IMX_OCOTP
  ARM: imx_v6_v7_defconfig: enable psci default
2016-03-02 23:18:02 +01:00
Arnd Bergmann c88f7e6a52 ARM64 defconfig changes for Exynos based boards for v4.6:
1. We want thermal for Exynos7 TMU unit to monitor the temperature.
 2. Enable the drivers for PMIC used on Exynos7-based Espresso board.
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Merge tag 'samsung-defconfig-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/arm64

Merge "ARM64 defconfig changes for Exynos based boards for v4.6" from Krzysztof Kozlowski:

1. We want thermal for Exynos7 TMU unit to monitor the temperature.
2. Enable the drivers for PMIC used on Exynos7-based Espresso board.

* tag 'samsung-defconfig-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: defconfig: Enable Samsung MFD and related configs
  arm64: defconfig: Enable exynos thermal config
  ARM: multi_v7_defconfig: Remove MAX77802 RTC Kconfig symbol
  ARM: exynos_defconfig: Remove MAX77802 RTC Kconfig symbol
  rtc: max77686: Cleanup and reduce dmesg output
  rtc: Remove Maxim 77802 driver
  rtc: max77686: Properly handle regmap_irq_get_virq() error code
  rtc: max77686: Fix unsupported year message
  rtc: max77686: Add max77802 support
  rtc: max77686: Add an indirection level to access RTC registers
  rtc: max77686: Use a driver data struct instead hard-coded values
  rtc: max77686: Use usleep_range() instead of msleep()
  rtc: max77686: Use ARRAY_SIZE() instead of current array length
  rtc: max77686: Fix max77686_rtc_read_alarm() return value
  ARM: exynos_defconfig: Enable s5p-secss driver
  ARM: exynos_defconfig: Enable NEON, accelerated crypto and cpufreq stats

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-03-02 23:15:48 +01:00
Arnd Bergmann 9c8add4c4a Second 4.6 DT series, all patches for sama5d2 and its Xplained board:
- addition of the NAND flash node
 - addition of the dma properties for UART/USART nodes
 - one update of the sama5d2 Xplained phy node
 - addition of USB pinmux, button and leds
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Merge tag 'at91-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt

Merge "at91: dt for 4.6 #2" from Nicolas Ferre:

Second 4.6 DT series, all patches for sama5d2 and its Xplained board:
- addition of the NAND flash node
- addition of the dma properties for UART/USART nodes
- one update of the sama5d2 Xplained phy node
- addition of USB pinmux, button and leds

* tag 'at91-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: dts: at91: sama5d2 Xplained: add leds node
  ARM: dts: at91: sama5d2 Xplained: add user push button
  ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
  ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
  ARM: dts: at91: sama5d2: add dma properties to UART nodes
  ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
2016-03-02 21:45:58 +01:00
Arnd Bergmann e3c739e129 Highlights:
-----------
  - Fix clock references in GPIO nodes
  - Add early support to stm32f469 MCU
  - Add USB HS support in host mdoe to stm32429-eval board
  - Add Ethernet support to stm32429-eval board
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Merge tag 'stm32-dt-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32 into next/dt

Merge "STM32 DT updates for v4.6 #2" from Maxime Coquelin:

Highlights:
-----------
 - Fix clock references in GPIO nodes
 - Add early support to stm32f469 MCU
 - Add USB HS support in host mdoe to stm32429-eval board
 - Add Ethernet support to stm32429-eval board

* tag 'stm32-dt-for-v4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32:
  ARM: dts: stm32f429: Enable Ethernet on Eval board
  ARM: dts: stm32f429: Add Ethernet support
  ARM: dts: stm32f429: Add system config bank node
  ARM: dts: stm32429i-eval: Add USB HS host mode support
  ARM: dts: stm32f429: Fix clocks referenced by GPIO banks
  ARM: stm32: Supply a DTS file for the STM32F469 Discovery board
2016-03-02 21:44:10 +01:00
Arnd Bergmann 4615b4e0e6 Part 2 of device tree changes for omaps for v4.6 merge window:
- A series of GPMC related interrupt changes from
   Rogeq Quadros <rogerq@ti.com> to prepare adding interrupt
   support to the NAND driver
 
 - Add RTC support for ti81xx
 
 - Correct LogicPD Torpedo mode description
 
 - Add basic support for LG Optimus Black phone in several
   patches by Paul Kocialkowski <contact@paulk.fr>
 
 - Change address-cells for dra7 for LPAE
 
 - Add TBCLK for PWMSS on dra7
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Merge tag 'omap-for-v4.6/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Pull "Part 2 of device tree changes for omaps for v4.6 merge window" from Tony Lindgren:

- A series of GPMC related interrupt changes from
  Rogeq Quadros <rogerq@ti.com> to prepare adding interrupt
  support to the NAND driver

- Add RTC support for ti81xx

- Correct LogicPD Torpedo mode description

- Add basic support for LG Optimus Black phone in several
  patches by Paul Kocialkowski <contact@paulk.fr>

- Change address-cells for dra7 for LPAE

- Add TBCLK for PWMSS on dra7

* tag 'omap-for-v4.6/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (21 commits)
  ARM: dts: omap3-sniper: TWL4030 keypad support
  Revert "ARM: dts: DRA7: Add dt nodes for PWMSS"
  ARM: dts: dm814x: dra62x: Disable wait pin monitoring for NAND
  ARM: dts: dm814x: dra62x: Fix NAND device nodes
  ARM: dts: DRA7: Add dt nodes for PWMSS
  ARM: dts: DRA7: Add TBCLK for PWMSS
  ARM: dts: DRA7: change address-cells and size-cells
  ARM: dts: omap3-sniper: USB OTG support
  ARM: dts: LG Optimus Black codename sniper basic support
  ARM: dts: dm3730-torpedo-devkit: Add "Wireless" to model
  ARM: dts: Add RTC entry for dm816x
  ARM: dts: Add RTC entry for dm814x and dra62x
  ARM: dts: omap3: Fix NAND device nodes
  ARM: dts: dm8168-evm: ARM: dts: Disable wait pin monitoring for NAND
  ARM: dts: dm816x: Fix NAND device nodes
  ARM: dts: am335x: Disable wait pin monitoring for NAND
  ARM: dts: am335x: Fix NAND device nodes
  ARM: dts: am437x: Disable wait pin monitoring for NAND
  ARM: dts: am437x: Fix NAND device nodes
  ARM: dts: dra7: Remove redundant nand property
  ...
2016-03-02 21:27:03 +01:00
Arnd Bergmann aae31813d3 The i.MX device tree updates for 4.6:
- New i.MX6 board support: NXP/Freescale imx6qp boards, Advantech/GE,
   Uniwest evi, Engicam IMX6 Q7, Toradex Apalis SoM and Ixora carrier
   boards
 - Relicense vf610 dts files under GPLv2/X11
 - A patch series from Stefan updating Vybrid Colibri board support with
   PMU, regulators and other devices enabled
 - Correct PWM pinmux for Ventana boards and add more pinmux for GW54xx
 - Clean up imx6q-tbs2910 dts file and add SATA PHY configuration
 - A series from Russell cleaning up hummingboard dts files
 - A series from Lothar updating Ka-Ro i.MX28, i.MX53 and i.MX6 boards
   to use better audio codec frequency and display configurations
 - Clean up whitespaces in i.MX6UL pinctrl header and add more devices
   support for the SoC
 - Other random dts updates to enable various devices
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Merge tag 'imx-dt-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt2

Merge "i.MX device tree updates for 4.6" from Shawn Guo:

- New i.MX6 board support: NXP/Freescale imx6qp boards, Advantech/GE,
  Uniwest evi, Engicam IMX6 Q7, Toradex Apalis SoM and Ixora carrier
  boards
- Relicense vf610 dts files under GPLv2/X11
- A patch series from Stefan updating Vybrid Colibri board support with
  PMU, regulators and other devices enabled
- Correct PWM pinmux for Ventana boards and add more pinmux for GW54xx
- Clean up imx6q-tbs2910 dts file and add SATA PHY configuration
- A series from Russell cleaning up hummingboard dts files
- A series from Lothar updating Ka-Ro i.MX28, i.MX53 and i.MX6 boards
  to use better audio codec frequency and display configurations
- Clean up whitespaces in i.MX6UL pinctrl header and add more devices
  support for the SoC
- Other random dts updates to enable various devices

* tag 'imx-dt-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (75 commits)
  ARM: dts: imx53-qsb: Fix gpio button polarity
  ARM: dts: vfxxx: Add DAC node for Vybrid SoC
  ARM: dts: imx6q: add missing links between ipu2 and mipi dsi
  ARM: dts: imx: Add support for Advantech/GE B850v3
  ARM: dts: imx: Add support for Advantech/GE B650v3
  ARM: dts: imx: Add support for Advantech/GE B450v3
  ARM: dts: imx: Add support for Advantech/GE Bx50v3
  ARM: dts: imx: Add Advantech BA-16 Qseven module
  of: Add vendor prefix for General Electric Company
  of: Add vendor prefix for Advantech Corporation
  ARM: dts: imx35.dtsi: change the clock information for usb
  ARM: dts: imx25.dtsi: change the clock information for usb
  ARM: dts: imx6ul: add kpp support
  ARM: dts: imx6ul: add gpmi support
  ARM: dts: imx6ul: add lcdif support
  ARM: dts: imx6ul: add sai support
  ARM: dts: imx6ul: add flexcan support
  ARM: dts: imx6ul: add sdma support
  ARM: dts: imx6ul: add pwm[1-4] nodes
  ARM: dts: imx6ul: disable PWMs by default
  ...
2016-03-02 21:24:07 +01:00
Arnd Bergmann a7d1357664 Samsung DeviceTree updates and improvements for v4.6, second round:
1. Split common reboot/poweroff node to separate DTSI.
 2. Don't overheat Odroid XU3 by cooling CPU with cpufreq.
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Merge tag 'samsung-dt-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt

Merge "ARM: EXYNOS: dts for 4.6, 2nd pull" from Krzysztof Kozlowski:

Samsung DeviceTree updates and improvements for v4.6, second round:
1. Split common reboot/poweroff node to separate DTSI.
2. Don't overheat Odroid XU3 by cooling CPU with cpufreq.

* tag 'samsung-dt-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: exynos: Don't overheat the Odroid XU3-Lite on high load
  ARM: dts: exynos: Add cooling levels for Exynos5422/5800 CPUs
  ARM: dts: exynos: Add cooling levels for Exynos5420 CPUs
  ARM: dts: exynos: Move syscon reboot/poweroff to common dtsi
2016-03-02 21:15:42 +01:00
Arnd Bergmann 953a400ac2 Qualcomm ARM Based Device Tree Updates for v4.6
* Add documentation for Kryo
 * Add RPMCC node for APQ8064
 * Updates for MSM8974
 * Add board clocks
 * Add support for Nexus7 device
 * Fixup pmic reg properties
 * Various updates/cleanups for APQ8064 based boards
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Merge tag 'qcom-dt-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/dt

Merge "Qualcomm ARM Based Device Tree Updates for v4.6" from Andy Gross:

* Add documentation for Kryo
* Add RPMCC node for APQ8064
* Updates for MSM8974
* Add board clocks
* Add support for Nexus7 device
* Fixup pmic reg properties
* Various updates/cleanups for APQ8064 based boards

* tag 'qcom-dt-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: (23 commits)
  ARM: dts: ifc6410: add correct aliases to the i2c and spi bus
  ARM: dts: apq8064: add i2c6 device node.
  ARM: dts: ifc6410: enable cam i2c device
  ARM: dts: apq8064: add gsbi4 with i2c node.
  ARM: dts: apq8064: add missing i2c2 pinctrl info
  ARM: dts: ifc6410: enable spi device on expansion
  ARM: dts: apq8064: add spi5 device node.
  ARM: dts: apq8064: add i2c sleep pinctrl states.
  ARM: dts: apq8064: add pci support in CM QS600
  ARM: dts: apq8064: move pinctrls to dedicated dtsi
  ARM: dts: qcom: fix i2c lables to be inline with others
  dts: msm8974: Add dma channels for blsp2_i2c1 node
  dts: msm8974: Add blsp2_bam dma node
  ARM: dts: qcom: Remove size elements from pmic reg properties
  devicetree: bindings: Document qcom board compatible format
  devicetree: Add DTS file to support the Nexus7 2013 (flo) device.
  devicetree: qcom-apq8064.dtsi: Add i2c3 address-cells and size-cells values
  arm: dts: qcom: Add more board clocks
  ARM: dts: qcom: msm8974: Add WCNSS SMP2P node
  ARM: dts: qcom: msm8974: Add smsm node
  ...
2016-03-02 20:11:21 +01:00
Krzysztof Hałasa 59e430525b CNS3xxx: remove unused *_VIRT definitions
All PCI mmio ranges are dynamically mapped now, so we
can remove the fixed virtual address definitions.

Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-03-02 20:09:15 +01:00
Dmitry Torokhov 77a8f0ad38 Input: rotary_encoder - convert to use gpiod API
Instead of using old GPIO API, let's switch to GPIOD API, which
automatically handles polarity.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-02 09:31:49 -08:00
Arnd Bergmann e91fb3bd75 ARM: at91: avoid defining CONFIG_* symbols in source code
In an invalid randconfig build (fixed by another patch),
I ran across this warning:

arch/arm/include/debug/at91.S:18:0: error: "CONFIG_DEBUG_UART_VIRT" redefined [-Werror]
 #define CONFIG_DEBUG_UART_VIRT AT91_IO_P2V(CONFIG_DEBUG_UART_PHYS)

As Russell pointed out, we should never #define a macro starting
with CONFIG_ in a source file, as that is rather confusing.

This renames the macro to avoid the symbol clash.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-02 17:31:08 +01:00
Wenyou Yang ed0f4b3ffc ARM: dts: at91: sama5d2 Xplained: add leds node
Add the three leds on the sama5d2 Xplained board with their pinctrl node.
The blue led is positioned with the "heartbeat" trigger.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
[nicolas.ferre@atmel.com: add commit message and adapt to newer kernel]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-02 16:55:37 +01:00
Ludovic Desroches c7e48d44b7 ARM: dts: at91: sama5d2 Xplained: add user push button
Add the push button named "PB USER" with code 0x104. Associated pinctrl node is
also added.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-02 16:55:32 +01:00
Cyrille Pitchen ff964962a0 ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
For USB gadget on port A (device mode):
- pin PA31 is configured as an input GPIO which triggers an interrupt when
  vbus is detected on USB port A.
- pin PB9 is configured as an output GPIO and set to low level so the
  board doesn't supply vbus to USB port A.

For USB host:
- pin PB10 is configured as an output GPIO and is active at high level.
  The ohci driver will activate this pin so the board supplies vbus to USB
  port B.
- pin PB9 should be configured as an output GPIO and active at high level
  to use to USB port A in host mode (conflicts with USB gadget).

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-02 16:55:16 +01:00
Paolo Bonzini 2b097e9bc3 KVM/ARM fixes for 4.5-rc7
- Fix ioctl error handling on the timer path
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Merge tag 'kvm-arm-for-4.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

KVM/ARM fixes for 4.5-rc7

- Fix ioctl error handling on the timer path
2016-03-02 10:31:30 +01:00
Alexandre TORGUE 13759544fe ARM: dts: stm32f429: Enable Ethernet on Eval board
MAC is connected to a PHY in MII mode.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@gmail.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-03-02 10:26:55 +01:00
Andrew Lunn bec3c11bad misc: at24: replace memory_accessor with nvmem_device_read
Now that the AT24 uses the NVMEM framework, replace the
memory_accessor in the setup() callback with nvmem API calls.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-01 16:55:48 -08:00
Greg Kroah-Hartman 449a97d07a Update extcon for 4.6
Detailed description for patchset:
 1. Add new EXTCON_CHG_USB_SDP type
 - SDP (Standard Downstream Port) USB Charging Port
   means the charging connector.a
 
 2. Add the VBUS detection by using GPIO on extcon-palmas
 - Beaglex15 board uses the extcon-palmas driver
   But, beaglex15 board need the GPIO support for VBUS
   detection.
 
 3. Fix the minor issue of extcon drivers
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Merge tag 'extcon-next-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-testing

Chanwoo writes:

Update extcon for 4.6

Detailed description for patchset:
1. Add new EXTCON_CHG_USB_SDP type
- SDP (Standard Downstream Port) USB Charging Port
  means the charging connector.a

2. Add the VBUS detection by using GPIO on extcon-palmas
- Beaglex15 board uses the extcon-palmas driver
  But, beaglex15 board need the GPIO support for VBUS
  detection.

3. Fix the minor issue of extcon drivers
2016-03-01 16:49:18 -08:00
Sergei Shtylyov 949024d670 ARM: dts: porter: remove enable prop from HS-USB device node
In  the final versions of the Porter board (called "PORTER_C") Renesas
decided to get rid  of the Maxim Integrated MAX3355 OTG chip and didn't
add any other provision to differ the host/gadget mode, so we'll have to
remove  no longer valid "renesas,enable-gpio" property from the HS-USB
device node.  Hopefully, the earlier revisions of the board were never
seen in the wild...

Fixes: c794f6a09a ("ARM: shmobile: porter: add HS-USB DT support")
Reported-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2016-03-02 09:46:56 +09:00
David S. Miller d67703fced Here's another round of updates for -next:
* big A-MSDU RX performance improvement (avoid linearize of paged RX)
  * rfkill changes: cleanups, documentation, platform properties
  * basic PBSS support in cfg80211
  * MU-MIMO action frame processing support
  * BlockAck reordering & duplicate detection offload support
  * various cleanups & little fixes
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Merge tag 'mac80211-next-for-davem-2016-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Here's another round of updates for -next:
 * big A-MSDU RX performance improvement (avoid linearize of paged RX)
 * rfkill changes: cleanups, documentation, platform properties
 * basic PBSS support in cfg80211
 * MU-MIMO action frame processing support
 * BlockAck reordering & duplicate detection offload support
 * various cleanups & little fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 17:03:27 -05:00
Paul Kocialkowski 5193523ba6 ARM: dts: omap3-sniper: TWL4030 keypad support
This adds support for the volume and gesture keys, using TWL4030 keypad.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-03-01 12:57:06 -08:00
Tony Lindgren 04862d8063 Revert "ARM: dts: DRA7: Add dt nodes for PWMSS"
This reverts commit 5fcc673067.

The binding may need to change pending related hwmod comments,
so reverting as requested by Paul Walmsley <paul@pwsan.com>.
2016-03-01 12:55:17 -08:00
Thomas Gleixner fc6d73d674 arch/hotplug: Call into idle with a proper state
Let the non boot cpus call into idle with the corresponding hotplug state, so
the hotplug core can handle the further bringup. That's a first step to
convert the boot side of the hotplugged cpus to do all the synchronization
with the other side through the state machine. For now it'll only start the
hotplug thread and kick the full bringup of the cpu.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: Rik van Riel <riel@redhat.com>
Cc: Rafael Wysocki <rafael.j.wysocki@intel.com>
Cc: "Srivatsa S. Bhat" <srivatsa@mit.edu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Turner <pjt@google.com>
Link: http://lkml.kernel.org/r/20160226182341.614102639@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-03-01 20:36:57 +01:00
Tony Lindgren e80499190d ARM: OMAP2+: second set of hwmod changes for v4.6
These patches add RTC support for the AM43xx, and add support for
 the DRA7xx eDMA controller's TPCC, TPTC0, and TPTC1 IP blocks.
 Also included is a workaround for PRCM hardreset control of the DRA7xx
 PCIe subsystem.
 
 Note that I do not have a DRA7xx board, and therefore cannot
 test any patches for that SoC family.
 
 Basic build, boot, and PM test logs can be found here:
 
 http://www.pwsan.com/omap/testlogs/omap-hwmod-b-for-v4.6/20160301021258/
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Merge tag 'for-v4.6/omap-hwmod-b' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.6/soc

ARM: OMAP2+: second set of hwmod changes for v4.6

These patches add RTC support for the AM43xx, and add support for
the DRA7xx eDMA controller's TPCC, TPTC0, and TPTC1 IP blocks.
Also included is a workaround for PRCM hardreset control of the DRA7xx
PCIe subsystem.

Note that I do not have a DRA7xx board, and therefore cannot
test any patches for that SoC family.

Basic build, boot, and PM test logs can be found here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-b-for-v4.6/20160301021258/
2016-03-01 09:59:38 -08:00
Roger Quadros 44a3ab68ca ARM: dts: dm814x: dra62x: Disable wait pin monitoring for NAND
The NAND Ready/Busy# line is connected to GPMC_WAIT0 pin and
can't be used for wait state insertion for NAND I/O read/write.
So disable read/write wait monitoring as per Reference Manual's
suggestion [1].

[1] dm814x TRM: SPRUGZ8F: 11.2.4.12.2 NAND Device-Ready Pin

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-03-01 09:58:09 -08:00
Roger Quadros 0c3e192ad2 ARM: dts: dm814x: dra62x: Fix NAND device nodes
Add compatible id, GPMC register resource and interrupt
resource to NAND controller nodes.

The GPMC node will provide an interrupt controller for the
NAND IRQs.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-03-01 09:58:09 -08:00
Alexandre TORGUE 9ee33d660d ARM: dts: stm32f429: Add Ethernet support
Add Ethernet support (Synopsys MAC IP 3.50a) on stm32f429 SOC.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@gmail.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-03-01 14:56:59 +01:00
Sascha Hauer 3631c597ca ARM: dts: imx53-qsb: Fix gpio button polarity
The polarity of the gpio buttons is defined to '0' which is
active high. The buttons are active low though which has been verified by
testing it and by looking into the schematics. While at it use
defines rathers than numbers for the key codes.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-03-01 21:40:50 +08:00
Alexandre TORGUE e78b6555e0 ARM: dts: stm32f429: Add system config bank node
Signed-off-by: Alexandre TORGUE <alexandre.torgue@gmail.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-03-01 14:38:34 +01:00
Jan Luebbe c73a1f13d0 ARM: imx_v4_v5_defconfig: Enable initramfs support
This makes it possible to automatically boot-test this defconfig with
kernelci.org.

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-03-01 21:32:51 +08:00
Jan Luebbe 7763327dd2 ARM: imx_v4_v5_defconfig: Cleanup imx_v4_v5_defconfig
Regenerate imx_v4_v5_defconfig by running:
make imx_v4_v5_defconfig
- Manually disable EXT2_FS and EXT3_FS
make savedefconfig
mv defconfig arch/arm/configs/imx_v4_v5_defconfig

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-03-01 21:32:46 +08:00
Romain Izard 28fe80077e ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
Both nodes are required to access NAND Flash memory. Additional
settings will be necessary at the board level to use it.

Tested-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-01 13:31:04 +01:00
Nicolas Ferre b1708b72a0 ARM: dts: at91: sama5d2: add dma properties to UART nodes
The dmas/dma-names properties are added to the UART nodes. Note that additional
properties are needed to enable them at the board level: check bindings for
details.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-01 13:31:03 +01:00
Romain Izard 34ff2dc769 ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
All pinctrl nodes for the Atmel pinctrl controller need to have their
bias configuration explicitly defined. Otherwise, the pinctrl mapping
is not valid.

It works for now as the pinctrl driver proceeds even with invalid
mappings, but this can become an issue, if the pinctrl driver starts
to require valid mappings. Additionally, the pin is not protected from
being remapped later by an other driver.

There is an external 1kOhms pull-up to 3.3V, so no bias is required on
the Ethernet PHY's interrupt line.

Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-03-01 10:47:23 +01:00
Krzysztof Kozlowski 52e8e59270 ARM: dts: exynos: Don't overheat the Odroid XU3-Lite on high load
After adding cpufreq-dt support to Exynos542x, the Odroid XU3-Lite can
be easily overheated when launching eight CPU-intensive tasks:
	thermal thermal_zone3: critical temperature reached(121 C),shutting down

This seems to be specific to Odroid XU3-Lite board which officially
supports lower frequencies than regular XU3 or XU4. When working at
maximum CPU speed (1800 MHz big and 1300 MHz LITTLE) in warmer place for
longer time, the fan fails to cool down the board and it reaches
critical temperature.

Add CPU cooling to Exynos5422/5800 to fix this issue. When reaching last
interrupt-driven trip-point (70 degrees of Celsius) start passive
cooling in polling mode (slowing CPU by 2 steps). When reaching 85
degrees of Celsius, start slowing even more, down to 600 MHz.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2016-03-01 18:04:00 +09:00
Krzysztof Kozlowski 3b93fc0f2a ARM: dts: exynos: Add cooling levels for Exynos5422/5800 CPUs
On Exynos5422 and Exynos5800 we support 12 cpufreq steps (200-1300 MHz) for LITTLE
and 18 steps for big core (200-1700 MHz). Add respective cooling cells.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2016-03-01 18:03:42 +09:00
Krzysztof Kozlowski 65ebf53fbd ARM: dts: exynos: Add cooling levels for Exynos5420 CPUs
On Exynos5420 we support 8 cpufreq steps (600-1300 MHz) for LITTLE and
12 steps for big core (700-1800 MHz). Add respective cooling cells.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2016-03-01 18:03:12 +09:00
Peter Ujfalusi 34b4182ce5 ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1
Add hwmod data for the eDMA blocks:
 - TPCC: Third-party channel controller
 - TPTC0: Third-party transfer controller 0
 - TPTC1: Third-party transfer controller 1

The TPCC's clock gating status follows the status of its clock and
power domain. This means that the hwmod code can not directly control
the TPCC enable/disable status.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[paul@pwsan.com: rephrased last two sentences of the patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-01 01:55:59 -07:00
Arnd Bergmann 1c277cae14 This is the pxa changes for v4.6 cycle.
This is a minor cycle with :
  - cleanup fixes from Arnd, mainly build oriented and sparse type ones
  - dma fixes for requestors above 32 (impacting mainly camera driver)
  - some minor cleanup on pxa3xx device-tree side
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Merge tag 'pxa-for-4.6' of https://github.com/rjarzmik/linux into next/soc

Merge "pxa changes for v4.6 cycle" from Robert Jarzmik:

This is a minor cycle with :
 - cleanup fixes from Arnd, mainly build oriented and sparse type ones
 - dma fixes for requestors above 32 (impacting mainly camera driver)
 - some minor cleanup on pxa3xx device-tree side

* tag 'pxa-for-4.6' of https://github.com/rjarzmik/linux:
  dmaengine: pxa_dma: fix the maximum requestor line
  ARM: pxa: add the number of DMA requestor lines
  dmaengine: mmp-pdma: add number of requestors
  dma: mmp_pdma: Add the #dma-requests DT property documentation
  ARM: pxa: pxa3xx device-tree support cleanup
  ARM: pxa: don't select RFKILL if CONFIG_NET is disabled
  ARM: pxa: fix building without IWMMXT
  ARM: pxa: move extern declarations to pm.h
  ARM: pxa: always select one of the two CPU types
  ARM: pxa: don't select GPIO_SYSFS for MIOA701
  ARM: pxa: mark unused eseries code as __maybe_unused
  ARM: pxa: mark spitz_card_pwr_ctrl as __maybe_unused
  ARM: pxa: define clock registers as __iomem
2016-03-01 00:24:43 +01:00
Vignesh R 5fcc673067 ARM: dts: DRA7: Add dt nodes for PWMSS
Add PWMSS device tree nodes for DRA7 SoC family and add documentation
for dt bindings.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-29 15:21:28 -08:00
Vignesh R c60f9e2980 ARM: dts: DRA7: Add TBCLK for PWMSS
tbclk is used by ehrpwm to generate PWM waveform on DRA7 SoC. Add Linux
clock to control ehrpwm tbclk.
The TRM says, tbclk is derived from SYSCLKOUT. SYSCLKOUT is nothing but
ehrpwm functional clock derived from the gateable interface and
functional clock of PWMSS(l4_root_clk_div).
Refer AM57x TRM SPRUHZ6[1], October 2014, Table 29-4 and Section 29.2.2.1,
Table 29-19 and the NOTE at the end of the table.

[1] www.ti.com/lit/ug/spruhz6/spruhz6.pdf

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-29 15:20:55 -08:00
Arnd Bergmann 53b28f1c64 This device-tree pxa update brings :
- a single fix for nand dmaengine node
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Merge tag 'pxa-dt-4.6' of https://github.com/rjarzmik/linux into next/dt

Merge pxa dt for v4.6 from Robert Jarzmik:

This device-tree pxa update brings :
 - a single fix for nand dmaengine node

* tag 'pxa-dt-4.6' of https://github.com/rjarzmik/linux:
  ARM: dts: pxa: fix dma engine node to pxa3xx-nand
2016-03-01 00:16:51 +01:00
Arnd Bergmann 8898cb4115 Allwinner DT Additions for 4.6
Quite a few changes, among which:
   - Support for the A83t
   - Support for the eMMC DDR on a few boards
   - Support for the OTG controller on a few boards
   - New boards: Itead Ibox, Cubietruck plus, Homlet v2, Lamobo R1
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Merge tag 'sunxi-dt-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/dt

Merge "Allwinner DT Additions for 4.6" from Maxime Ripard:

Quite a few changes, among which:
  - Support for the A83t
  - Support for the eMMC DDR on a few boards
  - Support for the OTG controller on a few boards
  - New boards: Itead Ibox, Cubietruck plus, Homlet v2, Lamobo R1

* tag 'sunxi-dt-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (34 commits)
  ARM: dts: sun8i: Add leds and switch on Orangepi Plus boards
  ARM: dts: sun8i: Add ir receiver nodes to H3 dtsi
  ARM: dts: sun8i-h3: Add R_PIO controller node to the dtsi
  dts: sun8i-h3: Add APB0 related clocks and resets
  ARM: dts: sun7i: Add dts file for the lamobo-r1 board
  ARM: dts: sun4i: Enable USB DRC on Hyundai-a7hd
  ARM: dts: sun4i: Enable USB DRC on the MK802
  ARM: dts: sun8i: q8-common: Add AXP223 PMIC device and regulator nodes
  ARM: dts: sun8i: sinlinx-sina33: Add AXP223 PMIC device and regulator nodes
  ARM: dts: sun7i: Enable USB DRC on Olimex A20 EVB
  ARM: dts: sun7i: Enable USB DRC on MK808C
  ARM: dts: sunxi: Fix #interrupt-cells for PIO in H3
  ARM: dts: sun8i-a83t: Correct low speed oscillator clocks
  ARM: dts: sun9i: a80-optimus: Remove i2c3 and uart4
  ARM: dts: sun4i: Itead Iteaduino to use common code
  ARM: dts: sun7i: Add Itead Ibox support
  ARM: dts: sunxi: Add sunxi-itead-core-common.dtsi
  ARM: dts: sun9i: cubieboard4: Enable hardware reset and HS-DDR for eMMC
  ARM: dts: sun9i: a80-optimus: Enable hardware reset and HS-DDR for eMMC
  ARM: dts: sun9i: Include SDC2_RST pin in mmc2_8bit_pins
  ...
2016-03-01 00:15:19 +01:00
Arnd Bergmann 68d61aed7d Allwinner defconfig changes for 4.6
A bunch of changes to add new drivers to the sunxi and multi_v7 defconfigs,
 most notably the USB OTG that is finally enabled.
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Merge tag 'sunxi-defconfig-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/defconfig

Merge "Allwinner defconfig changes for 4.6" from Maxime Ripard:

A bunch of changes to add new drivers to the sunxi and multi_v7 defconfigs,
most notably the USB OTG that is finally enabled.

* tag 'sunxi-defconfig-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi_defconfig: Enable MUSB HDRC driver with Allwinner glue
  ARM: multi_v7_defconfig: Enable A10 audio codec driver as module
  ARM: multi_v7_defconfig: Enable MUSB HDRC driver with Allwinner glue
  ARM: sunxi_defconfig: Enable INPUT_EVDEV so axp20x-pek can be used
  ARM: sunxi_defconfig: Enable A10 audio codec driver
  ARM: sunxi_defconfig: Enable sunxi IR driver
2016-03-01 00:13:44 +01:00
Arnd Bergmann 7b8685d99e Allwinner core changes for 4.6
Just introduce the A83T support.
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Merge tag 'sunxi-core-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/soc

Merge "Allwinner core changes for 4.6" from Maxime Ripard:

Just introduce the A83T support.

* tag 'sunxi-core-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi: Introduce Allwinner for A83T support
2016-03-01 00:12:17 +01:00
Lokesh Vutla dae320ec31 ARM: dts: DRA7: change address-cells and size-cells
DRA7 SoC has the capability to support DDR memory upto 4GB. In order to
represent this in memory dt node, the address-cells and size cells
should be 2. So, changing the address-cells and size-cells to 2 and
updating the memory nodes accordingly.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-29 15:02:15 -08:00
Arnd Bergmann 4043d9c379 mvebu defconfig for 4.6 (part 2)
enable SRAM support in mvebu_v7_defconfig
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Merge tag 'mvebu-defconfig-4.6-2' of git://git.infradead.org/linux-mvebu into next/defconfig

Merge "mvebu defconfig for 4.6 (part 2)" from Gregory CLEMENT:

enable SRAM support in mvebu_v7_defconfig

* tag 'mvebu-defconfig-4.6-2' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: enable SRAM support in mvebu_v7_defconfig
2016-02-29 23:59:14 +01:00
Paul Kocialkowski 4e550018df ARM: multi_v7_defconfig: Enable LP872x regulator support
The LP872x regulator is used in the LG Optimus Black codename sniper to supply
the external mmc card.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-29 14:58:01 -08:00
Arnd Bergmann eff01adba1 mvebu dt for 4.6 (part 2)
- Reorder Ethernet node on Armada 38x SoCs
 - Add device tree for buffalo linkstation ls-gl
 - Use the more accurate armada-370-sata string for SATA on Armada 375
 - Add NAND description to Armada 370 DB and Armada XP DB
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Merge tag 'mvebu-dt-4.6-2' of git://git.infradead.org/linux-mvebu into next/dt

Merge "mvebu dt for 4.6 (part 2)" from Gregory CLEMENT:

- Reorder Ethernet node on Armada 38x SoCs
- Add device tree for buffalo linkstation ls-gl
- Use the more accurate armada-370-sata string for SATA on Armada 375
- Add NAND description to Armada 370 DB and Armada XP DB

* tag 'mvebu-dt-4.6-2' of git://git.infradead.org/linux-mvebu:
  ARM: dts: mvebu: add NAND description to Armada 370 DB and Armada XP DB
  ARM: dts: armada-375: use armada-370-sata for SATA
  ARM: dts: orion5x: add device tree for buffalo linkstation ls-gl
  ARM: dts: orion5x: split linkstation lswtgl into common and device parts
  ARM: dts: armada-38x: add reference to ETH connectors for A385-AP
  ARM: dts: armada-38x: change order of ethernet DT nodes on Armada 38x
  ARM: dts: orion5x: fix the missing mtd flash on linkstation lswtgl
  ARM: dts: kirkwood: use unique machine name for ds112
2016-02-29 23:57:21 +01:00
Arnd Bergmann 8056fb32af mvebu soc for 4.6 (part 1)
randconfig warning fixes for mvebu SoCs
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Merge tag 'mvebu-soc-4.6-1' of git://git.infradead.org/linux-mvebu into next/fixes-non-critical

Merge "mvebu soc for 4.6 (part 1)" from Gregory CLEMENT:

randconfig warning fixes for mvebu SoCs

* tag 'mvebu-soc-4.6-1' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: mark mvebu_hwcc_pci_nb as __maybe_unused
  ARM: mv78xx0: avoid unused function warning
  ARM: orion: only select I2C_BOARDINFO when using I2C
2016-02-29 23:54:19 +01:00
Arnd Bergmann 809683ee06 mvebu cleanup for 4.6 (part 2)
Add a missing call to of_node_put() armada_xp_smp_prepare_cpus()
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Merge tag 'mvebu-cleanup-4.6-2' of git://git.infradead.org/linux-mvebu into next/cleanup

Merge "mvebu cleanup for 4.6 (part 2)" from Gregory CLEMENT:

Add a missing call to of_node_put() armada_xp_smp_prepare_cpus()

* tag 'mvebu-cleanup-4.6-2' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: add missing of_node_put()
2016-02-29 23:53:01 +01:00
Paul Kocialkowski fa4fc8188e ARM: omap2plus_defconfig: Enable LP872x regulator support
The LP872x regulator is used in the LG Optimus Black codename sniper to supply
the external mmc card.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-29 13:53:37 -08:00
Paul Kocialkowski 4d91e28548 ARM: dts: omap3-sniper: USB OTG support
This adds support for USB OTG on the Optimus Black.
The HSUSB0 interface is connected to the TWL4030 USB PHY.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-29 13:52:31 -08:00
Paul Kocialkowski 999400d491 ARM: dts: LG Optimus Black codename sniper basic support
The LG Optimus Black codename sniper is a smartphone that was designed and
manufactured by LG Electronics (LGE) and released back in 2011.
It is using an OMAP3630 SoC, GP version.

This adds devicetree support for the device, with only a few basic features
supported, such as debug uart, i2c, internal emmc and external mmc.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-29 13:52:10 -08:00
Marc Zyngier 9b4a300443 KVM: arm/arm64: timer: Add active state caching
Programming the active state in the (re)distributor can be an
expensive operation so it makes some sense to try and reduce
the number of accesses as much as possible. So far, we
program the active state on each VM entry, but there is some
opportunity to do less.

An obvious solution is to cache the active state in memory,
and only program it in the HW when conditions change. But
because the HW can also change things under our feet (the active
state can transition from 1 to 0 when the guest does an EOI),
some precautions have to be taken, which amount to only caching
an "inactive" state, and always programing it otherwise.

With this in place, we observe a reduction of around 700 cycles
on a 2GHz GICv2 platform for a NULL hypercall.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:22 +00:00
Marc Zyngier d06a5440a0 ARM: KVM: Switch the CP reg search to be a binary search
Doing a linear search is a bit silly when we can do a binary search.
Not that we trap that so many things that it has become a burden yet,
but it makes sense to align it with the arm64 code.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:22 +00:00
Marc Zyngier f1d67d4ac7 ARM: KVM: Rename struct coproc_reg::is_64 to is_64bit
As we're going to play some tricks on the struct coproc_reg,
make sure its 64bit indicator field matches that of coproc_params.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:22 +00:00
Marc Zyngier b613f59dd2 ARM: KVM: Enforce sorting of all CP tables
Since we're obviously terrible at sorting the CP tables, make sure
we're going to do it properly (or fail to boot). arm64 has had the
same mechanism for a while, and nobody ever broke it...

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:22 +00:00
Marc Zyngier 504bfce18a ARM: KVM: Properly sort the invariant table
Not having the invariant table properly sorted is an oddity, and
may get in the way of future optimisations. Let's fix it.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:22 +00:00
Shannon Zhao bb0c70bcca arm64: KVM: Add a new vcpu device control group for PMUv3
To configure the virtual PMUv3 overflow interrupt number, we use the
vcpu kvm_device ioctl, encapsulating the KVM_ARM_VCPU_PMU_V3_IRQ
attribute within the KVM_ARM_VCPU_PMU_V3_CTRL group.

After configuring the PMUv3, call the vcpu ioctl with attribute
KVM_ARM_VCPU_PMU_V3_INIT to initialize the PMUv3.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:21 +00:00
Shannon Zhao f577f6c2a6 arm64: KVM: Introduce per-vcpu kvm device controls
In some cases it needs to get/set attributes specific to a vcpu and so
needs something else than ONE_REG.

Let's copy the KVM_DEVICE approach, and define the respective ioctls
for the vcpu file descriptor.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:21 +00:00
Shannon Zhao 5f0a714a2b arm64: KVM: Free perf event of PMU when destroying vcpu
When KVM frees VCPU, it needs to free the perf_event of PMU.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:21 +00:00
Shannon Zhao b02386eb7d arm64: KVM: Add PMU overflow interrupt routing
When calling perf_event_create_kernel_counter to create perf_event,
assign a overflow handler. Then when the perf event overflows, set the
corresponding bit of guest PMOVSSET register. If this counter is enabled
and its interrupt is enabled as well, kick the vcpu to sync the
interrupt.

On VM entry, if there is counter overflowed and interrupt level is
changed, inject the interrupt with corresponding level. On VM exit, sync
the interrupt level as well if it has been changed.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:21 +00:00
Marc Zyngier 68130cb5db ARM: KVM: Use common version of timer-sr.c
Using the common HYP timer code is a bit more tricky, since we
use system register names. Nothing a set of macros cannot
work around...

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:19 +00:00
Marc Zyngier b5fa5d3e62 ARM: KVM: Use common version of vgic-v2-sr.c
No need to keep our own private version, the common one is
strictly identical.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:19 +00:00
Marc Zyngier f1c9cad7c5 ARM: KVM: Move kvm/hyp/hyp.h to include/asm/kvm_hyp.h
In order to be able to use the code located in virt/kvm/arm/hyp,
we need to make the global hyp.h file accessible from include/asm,
similar to what we did for arm64.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:18 +00:00
Marc Zyngier 1e947bad0b arm64: KVM: Skip HYP setup when already running in HYP
With the kernel running at EL2, there is no point trying to
configure page tables for HYP, as the kernel is already mapped.

Take this opportunity to refactor the whole init a bit, allowing
the various parts of the hypervisor bringup to be split across
multiple functions.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:16 +00:00
Marc Zyngier 82deae0fc8 arm/arm64: Add new is_kernel_in_hyp_mode predicate
With ARMv8.1 VHE extension, it will be possible to run the kernel
at EL2 (aka HYP mode). In order for the kernel to easily find out
where it is running, add a new predicate that returns whether or
not the kernel is in HYP mode.

For completeness, the 32bit code also get such a predicate (always
returning false) so that code common to both architecture (timers,
KVM) can use it transparently.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:16 +00:00
Marc Zyngier 57c841f131 arm/arm64: KVM: Handle out-of-RAM cache maintenance as a NOP
So far, our handling of cache maintenance by VA has been pretty
simple: Either the access is in the guest RAM and generates a S2
fault, which results in the page being mapped RW, or we go down
the io_mem_abort() path, and nuke the guest.

The first one is fine, but the second one is extremely weird.
Treating the CM as an I/O is wrong, and nothing in the ARM ARM
indicates that we should generate a fault for something that
cannot end-up in the cache anyway (even if the guest maps it,
it will keep on faulting at stage-2 for emulation).

So let's just skip this instruction, and let the guest get away
with it.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:15 +00:00
Marc Zyngier 402f352876 ARM: KVM: Remove __kvm_hyp_exit/__kvm_hyp_exit_end
I have no idea what these were for - probably a leftover from an
early implementation. Good bye!

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:15 +00:00
Marc Zyngier f9e515eeb1 ARM: KVM: Remove handling of ARM_EXCEPTION_DATA/PREF_ABORT
These are now handled as a panic, so there is little point in
keeping them around.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:15 +00:00
Marc Zyngier 311b5b363c ARM: KVM: Remove unused hyp_pc field
This field was never populated, and the panic code already
does something similar. Delete the related code.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:15 +00:00
Marc Zyngier ff3a01d1e0 ARM: KVM: Cleanup asm-offsets.c
Since we don't have much assembler left, most of the KVM stuff
in asm-offsets.c is now superfluous. Let's get rid of it.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:15 +00:00
Marc Zyngier 4448932fb0 ARM: KVM: Turn CP15 defines to an enum
Just like on arm64, having the CP15 registers expressed as a set
of #defines has been very conflict-prone. Let's turn it into an
enum, which should make it more manageable.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:15 +00:00
Marc Zyngier fa85e25dad ARM: KVM: Remove __weak attributes
Now that the old code is long gone, we can remove all the weak
attributes, as there is only one version of the code.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:15 +00:00
Marc Zyngier d4c7688c51 ARM: KVM: Switch to C-based stage2 init
As we now have hooks to setup VTCR from C code, let's drop the
original VTCR setup and reimplement it as part of the HYP code.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier b98e2e728e ARM: KVM: Remove the old world switch
As we now have a full reimplementation of the world switch, it is
time to kiss the old stuff goodbye. I'm not sure we'll miss it.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier b57cd6f640 ARM: KVM: Change kvm_call_hyp return type to unsigned long
Having u64 as the kvm_call_hyp return type is problematic, as
it forces all kind of tricks for the return values from HYP
to be promoted to 64bit (LE has the LSB in r0, and BE has them
in r1).

Since the only user of the return value is perfectly happy with
a 32bit value, let's make kvm_call_hyp return an unsigned long,
which is 32bit on ARM.

This solves yet another headache.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier c36b6db5f3 ARM: KVM: Add panic handling code
Instead of spinning forever, let's "properly" handle any unexpected
exception ("properly" meaning "print a spat on the console and die").

This has proved useful quite a few times...

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier bafc6c2a22 ARM: KVM: Add HYP mode entry code
This part is almost entierely borrowed from the existing code, just
slightly simplifying the HYP function call (as we now save SPSR_hyp
in the world switch).

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier 97e9643713 ARM: KVM: Add populating of fault data structure
On guest exit, we must take care of populating our fault data
structure so that the host code can handle it. This includes
resolving the IPA for permission faults, which can result in
restarting the guest.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier 9dddc2dfa5 ARM: KVM: Add the new world switch implementation
The new world switch implementation is modeled after the arm64 one,
calling the various save/restore functions in turn, and having as
little state as possible.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier 96e5e670cc ARM: KVM: Add VFP lazy save/restore handler
Similar to the arm64 version, add the code that deals with VFP traps,
re-enabling VFP, save/restoring the registers and resuming the guest.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:14 +00:00
Marc Zyngier 89ef2b21ed ARM: KVM: Add guest entry code
Add the very minimal piece of code that is now required to jump
into the guest (and return from it). This code is only concerned
with save/restoring the USR registers (r0-r12+lr for the guest,
r4-r12+lr for the host), as everything else is dealt with in C
(VFP is another matter though).

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier 33280b4cd1 ARM: KVM: Add banked registers save/restore
Banked registers are one of the many perks of the 32bit architecture,
and the world switch needs to cope with it.

This requires some "special" accessors, as these are not accessed
using a standard coprocessor instruction.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier 59cbcdb5d8 ARM: KVM: Add VFP save/restore
This is almost a copy/paste of the existing version, with a couple
of subtle differences:
- Only write to FPEXC once on the save path
- Add an isb when enabling VFP access

The patch also defines a few sysreg accessors and a __vfp_enabled
predicate that test the VFP trapping state.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier c0c2cdbffe ARM: KVM: Add vgic v2 save/restore
This patch shouldn't exist, as we should be able to reuse the
arm64 version for free. I'll get there eventually, but in the
meantime I need an interrupt controller.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier e59bff9bf3 ARM: KVM: Add timer save/restore
This patch shouldn't exist, as we should be able to reuse the
arm64 version for free. I'll get there eventually, but in the
meantime I need a timer ticking.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier c7ce6c63a0 ARM: KVM: Add CP15 save/restore code
Concert the CP15 save/restore code to C.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier 1d58d2cbf7 ARM: KVM: Add TLB invalidation code
Convert the TLB invalidation code to C, hooking it into the
build system whilst we're at it.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier 3c29568768 ARM: KVM: Add system register accessor macros
In order to move system register (CP15, mostly) access to C code,
add a few macros to facilitate this, and minimize the difference
between 32 and 64bit CP15 registers.

This will get heavily used in the following patches.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:13 +00:00
Marc Zyngier 08dcbfda07 ARM: KVM: Add a HYP-specific header file
In order to expose the various HYP services that are private to
the hypervisor, add a new hyp.h file.

So far, it only contains mundane things such as section annotation
and VA manipulation.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:12 +00:00
Marc Zyngier c2a8dab507 ARM: KVM: Move GP registers into the CPU context structure
Continuing our rework of the CPU context, we now move the GP
registers into the CPU context structure.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:12 +00:00
Marc Zyngier fb32a52a1d ARM: KVM: Move CP15 array into the CPU context structure
Continuing our rework of the CPU context, we now move the CP15
array into the CPU context structure. As this causes quite a bit
of churn, we introduce the vcpu_cp15() macro that abstract the
location of the actual array. This will probably help next time
we have to revisit that code.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:12 +00:00
Marc Zyngier 0ca5565df8 ARM: KVM: Move VFP registers to a CPU context structure
In order to turn the WS code into something that looks a bit
more like the arm64 version, move the VFP registers into a
CPU context container for both the host and the guest.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:12 +00:00
Marc Zyngier 42428525a9 ARM: KVM: Remove __kvm_hyp_code_start/__kvm_hyp_code_end
Now that we've unified the way we refer to the HYP text between
arm and arm64, drop __kvm_hyp_code_start/end, and just use the
__hyp_text_start/end symbols.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:12 +00:00
Marc Zyngier 1a61ae7af4 ARM: KVM: Move the HYP code to its own section
In order to be able to spread the HYP code into multiple compilation
units, adopt a layout similar to that of arm64:
- the HYP text is emited in its own section (.hyp.text)
- two linker generated symbols are use to identify the boundaries
  of that section

No functionnal change.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:12 +00:00
Marc Zyngier 35a2491a62 arm/arm64: KVM: Add hook for C-based stage2 init
As we're about to move the stage2 init to C code, introduce some
C hooks that will later be populated with arch-specific implementations.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:12 +00:00
Arnd Bergmann ca2942cc62 Second Round of Renesas ARM Based SoC DT Updates for v4.6
* Add L2 cache-controller nodes to r8a779[0134] and r8a73a4
 * Add etheravb support to r8a7794
 * Correct JP3 jumper description on Porter
 * Enable thermal zone on  r8a779[013]
 * Replace gpio-key, wakeup with wakeup-source property on r8a7794
 * Use demuxer for IIC0/I2C0 on lager
 * Use fallback etheravb, pci and pcie compatibility strings as appropriate
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Merge tag 'renesas-dt2-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt

Merge "Second Round of Renesas ARM Based SoC DT Updates for v4.6" from
Simon Horman:

* Add L2 cache-controller nodes to r8a779[0134] and r8a73a4
* Add etheravb support to r8a7794
* Correct JP3 jumper description on Porter
* Enable thermal zone on  r8a779[013]
* Replace gpio-key, wakeup with wakeup-source property on r8a7794
* Use demuxer for IIC0/I2C0 on lager
* Use fallback etheravb, pci and pcie compatibility strings as appropriate

* tag 'renesas-dt2-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: dts: r8a7790: use fallback etheravb compatibility string
  ARM: dts: r8a7790: lager: use demuxer for IIC0/I2C0
  ARM: dts: r8a7794: add EtherAVB support
  ARM: dts: r8a7794: add EtherAVB clock
  ARM: dts: r8a7794: replace gpio-key, wakeup with wakeup-source property
  ARM: dts: r8a7794: Add L2 cache-controller node
  ARM: dts: r8a7793: Add L2 cache-controller node
  ARM: dts: r8a7791: Add L2 cache-controller node
  ARM: dts: r8a7790: Add L2 cache-controller nodes
  ARM: dts: r8a73a4: Add L2 cache-controller nodes
  ARM: dts: r8a7793: enable to use thermal-zone
  ARM: dts: r8a7791: enable to use thermal-zone
  ARM: dts: r8a7790: enable to use thermal-zone
  ARM: dts: porter: fix JP3 jumper description
  ARM: dts: r8a7794: use fallback pci compatibility string
  ARM: dts: r8a7791: use fallback pci compatibility string
  ARM: dts: r8a7790: use fallback pci compatibility string
  ARM: dts: r8a7791: use fallback pcie compatibility string
  ARM: dts: r8a7790: use fallback pcie compatibility string
2016-02-29 16:22:09 +01:00
Michael S. Tsirkin 4cad67fca3 arm/arm64: KVM: Fix ioctl error handling
Calling return copy_to_user(...) in an ioctl will not
do the right thing if there's a pagefault:
copy_to_user returns the number of bytes not copied
in this case.

Fix up kvm to do
	return copy_to_user(...)) ?  -EFAULT : 0;

everywhere.

Cc: stable@vger.kernel.org
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 09:56:40 +00:00
Ingo Molnar 6aa447bcbb Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-29 09:42:07 +01:00
Sanchayan Maity 18e75ad2ff ARM: dts: vfxxx: Add DAC node for Vybrid SoC
Add a device tree node entry for DAC peripheral on Vybrid SoC.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:47 +08:00
Philipp Zabel 28f2c11816 ARM: dts: imx6q: add missing links between ipu2 and mipi dsi
The backlinks are already there since commit 4520e69238 ("ARM: dts:
imx6qdl: Add IPU DI ports and endpoints, move imx-drm node to dtsi")
and were moved by commit 70c2652c6c ("ARM: dts: imx6qdl: Move existing
MIPI DSI ports into a new 'ports' node"), but the links from IPU2 DI0/1
to the MIPI DSI mux are missing. Fix this.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:47 +08:00
Akshay Bhat 2252792b46 ARM: dts: imx: Add support for Advantech/GE B850v3
Add support for Advantech/GE B850v3 board.

Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:47 +08:00
Akshay Bhat 987e71877a ARM: dts: imx: Add support for Advantech/GE B650v3
Add support for Advantech/GE B650v3 board.

Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:46 +08:00
Akshay Bhat 547da6bbcf ARM: dts: imx: Add support for Advantech/GE B450v3
Add support for Advantech/GE B450v3 board.

Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:46 +08:00
Justin Waters 226d16c80c ARM: dts: imx: Add support for Advantech/GE Bx50v3
Advantech has 3 carrier boards (B450v3, B650v3, B850v3) which use
the Advantech BA-16 module (based on iMX6D). This file has the
devicetree entries that are common to all 3 boards.

Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:45 +08:00
Justin Waters 56c27310c1 ARM: dts: imx: Add Advantech BA-16 Qseven module
Add support for Advantech BA-16 module based on iMX6D processor

Basic information about the module:
 - Module manufacturer: Advantech
 - CPU: Freescale ARM Cortex-A9 i.MX6
 - SPECS:
     Up to 2GB Onboard DDR3 Memory;
     Up to 16GB Onboard eMMC NAND Flash
     Supports OpenGL ES 2.0 and OpenVG 1.1
     HDMI, 24-bit LVDS
     1x UART, 2x I2C, 8x GPIO,
     4x Host USB 2.0 port, 1x USB OTG port,
     1x micro SD (SDHC),1x SDIO, 1x SATA II,
     1x 10/100/1000 Mbps Ethernet, 1x PCIe X1 Gen2
 - Website: http://goo.gl/JED98U

Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:45 +08:00
Peter Chen 13ccd32b15 ARM: dts: imx35.dtsi: change the clock information for usb
For imx35, it needs three clocks to let the controller work,
the old code is wrong, and the usbmisc does not include
clock handling code any more.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:44 +08:00
Peter Chen 1b8d1ea9ee ARM: dts: imx25.dtsi: change the clock information for usb
For imx25, it needs three clocks to let the controller work,
the old code is wrong, and usbmisc has not included clock
handling code any more.

Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:43 +08:00
Lothar Waßmann ea1c17525d ARM: dts: imx6ul: add kpp support
This patch adds the device node for the i.MX6UL keypad controller.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:43 +08:00
Lothar Waßmann 7d1cd29786 ARM: dts: imx6ul: add gpmi support
Add the device node for the i.MX6UL GPMI interface and the related
APBH DMA which is necessary for the GPMI to work properly.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:43 +08:00
Lothar Waßmann 6fe01eb782 ARM: dts: imx6ul: add lcdif support
Add the device node for the i.MX6UL eLCDIF interface.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:42 +08:00
Lothar Waßmann 36e2edf6ac ARM: dts: imx6ul: add sai support
Add device nodes for the i.MX6UL synchronous audio interfaces (SAI).

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:42 +08:00
Lothar Waßmann c4aac1b176 ARM: dts: imx6ul: add flexcan support
Add device nodes for the i.MX6UL flexcan interfaces.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-29 16:17:41 +08:00