firefly-linux-kernel-4.4.55.git
9 years agoMerge tag 'mvebu-soc-3.20-2' of git://git.infradead.org/linux-mvebu into next/soc
Olof Johansson [Fri, 23 Jan 2015 22:13:15 +0000 (14:13 -0800)]
Merge tag 'mvebu-soc-3.20-2' of git://git.infradead.org/linux-mvebu into next/soc

Merge "mvebu/soc #2" from Andrew Lunn:

Soc patches for mvebu for v3.20, part #2.

* tag 'mvebu-soc-3.20-2' of git://git.infradead.org/linux-mvebu:
  bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window
  bus: mvebu-mbus: fix support of MBus window 13 on Armada XP/375/38x
  ARM: mvebu: use arm_coherent_dma_ops and re-enable hardware I/O coherency
  bus: mvebu-mbus: use automatic I/O synchronization barriers
  bus: mvebu-mbus: fix support of MBus window 13
  ARM: mvebu: completely disable hardware I/O coherency

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'v3.20-rockchip-soc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Fri, 23 Jan 2015 22:01:47 +0000 (14:01 -0800)]
Merge tag 'v3.20-rockchip-soc1' of git://git./linux/kernel/git/mmind/linux-rockchip into next/soc

Merge "ARM: rockchip: soc updates for v3.20" from Heiko Stübner:

SoC parts of basic suspend support and removal of
Cortex-A9 reference from the machine name.

* tag 'v3.20-rockchip-soc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: rockchip: remove cpu-core name from machine name
  ARM: rockchip: Add pmu-sram binding
  ARM: rockchip: add suspend and resume for RK3288

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'renesas-soc3-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Thu, 22 Jan 2015 01:19:05 +0000 (17:19 -0800)]
Merge tag 'renesas-soc3-for-v3.20' of git://git./linux/kernel/git/horms/renesas into next/soc

Merge "Third Round of Renesas ARM Based SoC Updates for v3.20" from Simon
Horman:

* Special-case PM domains with memory-controllers

* tag 'renesas-soc3-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: R-Mobile: Special-case PM domains with memory-controllers
  ARM: shmobile: R-Mobile: Generalize adding/looking up special PM domains
  ARM: shmobile: R-Mobile: Consolidate rmobile_pd_suspend_*()

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'renesas-soc2-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Thu, 22 Jan 2015 01:02:21 +0000 (17:02 -0800)]
Merge tag 'renesas-soc2-for-v3.20' of git://git./linux/kernel/git/horms/renesas into next/soc

Merge "Second Round of Renesas ARM Based SoC Updates for v3.20" from Simon
Horman:

* Add DT support for PM domains

* tag 'renesas-soc2-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: R-Mobile: Add DT support for PM domains
  ARM: shmobile: R-Mobile: Store SYSC base address in rmobile_pm_domain
  ARM: shmobile: R-Mobile: Use generic_pm_domain.attach_dev() for pm_clk setup

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'sti-soc-for-v3.20-1' of git://git.stlinux.com/devel/kernel/linux-sti into...
Olof Johansson [Wed, 21 Jan 2015 23:23:24 +0000 (15:23 -0800)]
Merge tag 'sti-soc-for-v3.20-1' of git://git.stlinux.com/devel/kernel/linux-sti into next/soc

Merge "ARM: STi: SoC changes for v3.20, round 1" from Maxime Coquelin:

Highlights:
-----------
 - Add support for STiH418 SoC

* tag 'sti-soc-for-v3.20-1' of git://git.stlinux.com/devel/kernel/linux-sti:
  ARM: STi: Add STiH418 SoC support

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'at91-cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre...
Olof Johansson [Wed, 21 Jan 2015 23:17:56 +0000 (15:17 -0800)]
Merge tag 'at91-cleanup2' of git://git./linux/kernel/git/nferre/linux-at91 into next/soc

Merge "at91: cleanup for 3.20 #2" from Nicolas Ferre:

Second batch of cleanup for 3.20:
- By reworking the PM code, we can remove the AT91 more specific initialization
- We are using DT for SRAM initialization now, so we can remove its explicit
  mapping
- The PMC clock driver now hosts IDLE function for at91rm9200 with other
  SoCs ones.

* tag 'at91-cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: (37 commits)
  ARM: at91: move at91rm9200_idle() to clk/at91/pmc.c
  ARM: at91: remove unused at91_init_sram
  ARM: at91: sama5d4: remove useless call to at91_init_sram
  ARM: at91: remove useless map_io
  ARM: at91: pm: prepare for multiplatform
  ARM: at91: pm: add UDP and UHP checks to newer SoCs
  ARM: at91: pm: use the mmio-sram pool to access SRAM
  ARM: at91: pm: rework cpu detection
  ARM: at91: dts: sama5d3: add ov2640 camera sensor support
  ARM: at91: dts: sama5d3: change name of pinctrl of ISI_MCK
  ARM: at91: dts: sama5d3: change name of pinctrl_isi_{power,reset}
  ARM: at91: dts: sama5d3: move the isi mck pin to mb
  ARM: at91: dts: sama5d3: add missing pins of isi
  ARM: at91: dts: sama5d3: split isi pinctrl
  ARM: at91: dts: sama5d3: add isi clock
  ARM: at91/dt: ethernut5: use at91sam9xe.dtsi
  ARM: at91/dt: Add a dtsi for at91sam9xe
  ARM: at91/dt: add SRAM nodes
  ARM: at91/dt: at91rm9200ek: enable RTC
  ARM: at91/dt: rm9200: add RTC node
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: hisi: enable smp for HiP01
Wang Long [Wed, 24 Dec 2014 03:10:02 +0000 (03:10 +0000)]
ARM: hisi: enable smp for HiP01

Enable smp for HiP01 board.

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
[olof: split off the dts change to a separate commit]
Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: hisi: rename secondary_startup function
Wang Long [Wed, 24 Dec 2014 03:10:01 +0000 (03:10 +0000)]
ARM: hisi: rename secondary_startup function

As hix5hd2 and hip01 has the same secondary_startup
so rename hix5hd2_secondary_startup to
to hisi_secondary_startup.

the hip01 will use hisi_secondary_startup for the
secondary core boot.

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: hisi: rename smp_prepares_cpus function
Wang Long [Wed, 24 Dec 2014 03:10:00 +0000 (03:10 +0000)]
ARM: hisi: rename smp_prepares_cpus function

As hix5hd2 and hip01 has the same .smp_prepare_cpus
in struct smp_operations, so rename hix5hd2_smp_prepare_cpus
to hisi_common_smp_prepare_cpus.

the hip01 will use hisi_common_smp_prepare_cpus in its
struct smp_operations.

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: hisi: enable HiP01 SoC
Wang Long [Wed, 24 Dec 2014 03:09:57 +0000 (03:09 +0000)]
ARM: hisi: enable HiP01 SoC

Enable Hisilicon HiP01 SoC. This HiP01 SoC series support both
one core or dual cores and quad cores. The core is Cortex A9.

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: debug: add HiP01 debug uart
Wang Long [Wed, 24 Dec 2014 03:09:56 +0000 (03:09 +0000)]
ARM: debug: add HiP01 debug uart

Add the support of Hisilicon HiP01 debug uart.
The uart of hip01 is 8250 compatible.

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'new-atlas7mach-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Wed, 21 Jan 2015 22:29:06 +0000 (14:29 -0800)]
Merge tag 'new-atlas7mach-for-3.20' of git://git./linux/kernel/git/baohua/linux into next/soc

Merge "CSR new atlas7 machine, and delete old marco machine for 3.20" from
Barry Song:

drop CSR Marco machine and add Atlas7 new machine

This is the init support for CSR Atlas7 new SoC. Old Marco has never
shipped to customers and been dropped.

* tag 'new-atlas7mach-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux:
  ARM: sirf: add Atlas7 machine support
  ARM: sirf: move to debug_ll_io_init and drop map_io
  ARM: sirf: move platsmp to support Atlas7 SoC
  ARM: sirf: drop Marco machine
  ARM: sirf: drop Marco support in reset controller module

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoMerge tag 'atlas7-lldebug-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Wed, 21 Jan 2015 22:26:53 +0000 (14:26 -0800)]
Merge tag 'atlas7-lldebug-for-3.20' of git://git./linux/kernel/git/baohua/linux into next/soc

Merge "CSR atlas7 debug ports for 3.20" from Barry Song:

add debug ports for CSRatlas7 SoC

Because Marco chip has never shipped to customers and has been replaced
by Atlas7, so we do the below
- drop Marco's debug port
- add debug ports for Atlas7

* tag 'atlas7-lldebug-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux:
  ARM: sirf: add two debug ports for CSRatlas7 SoC
  ARM: sirf: drop Marco low-level debug port

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: rockchip: remove cpu-core name from machine name
Heiko Stuebner [Wed, 21 Jan 2015 09:41:56 +0000 (10:41 +0100)]
ARM: rockchip: remove cpu-core name from machine name

The Rockchip support is not limited to Cortex-A9 socs anymore and its
presence may confuse people reading /proc/cpuinfo. So remove the core
specific part.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
9 years agoARM: sirf: add Atlas7 machine support
Zhiwu Song [Sun, 4 Jan 2015 09:53:37 +0000 (17:53 +0800)]
ARM: sirf: add Atlas7 machine support

CSRatlas7 is next-gen auto SoC from CSR.
It could bring to customers most integrated SoC solution:
- World leading Bluetooth 4.0 and GNSS baseband
- Audio processing, analog CODEC and ADC by DSP
- Analog video input
- SDR accelerators
- CAN bus support by Cortex-M3

Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
9 years agoARM: sirf: move to debug_ll_io_init and drop map_io
Barry Song [Sun, 4 Jan 2015 09:40:54 +0000 (17:40 +0800)]
ARM: sirf: move to debug_ll_io_init and drop map_io

This patch moves to debug_ll_io_init(), then finally drops CSR map_io()
machine callbacks.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
9 years agoARM: sirf: move platsmp to support Atlas7 SoC
Zhiwu Song [Thu, 25 Dec 2014 08:34:20 +0000 (16:34 +0800)]
ARM: sirf: move platsmp to support Atlas7 SoC

This patch breaks Marco SMP support, but Marco project has been dropped.
So it corrects cpu1 jump/flag address for Atlas7 and removes scu related
logic as scu doesn't expose in cortex-a7.

Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
9 years agoARM: sirf: drop Marco machine
Barry Song [Sun, 4 Jan 2015 06:31:39 +0000 (14:31 +0800)]
ARM: sirf: drop Marco machine

Marco will not be supported any more. it has been replaced by CSR
Atlas7.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
9 years agoARM: sirf: drop Marco support in reset controller module
Barry Song [Sun, 4 Jan 2015 06:48:20 +0000 (14:48 +0800)]
ARM: sirf: drop Marco support in reset controller module

Marco will not be supported any more. It has been replaced by CSR
Atlas7.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
9 years agoARM: sirf: add two debug ports for CSRatlas7 SoC
Guo Zeng [Sun, 4 Jan 2015 09:40:54 +0000 (17:40 +0800)]
ARM: sirf: add two debug ports for CSRatlas7 SoC

this patch adds UART0 and UART1 as LLUART port, as the new Atlas7
registers layout are different, it also refines some names of old
hard-coded MARCOs and uses CONFIG_DEBUG_UART_PHYS/DEBUG_UART_VIRT
to define different base addresses for multiple ports.

Signed-off-by: Guo Zeng <Guo.Zeng@csr.com>
Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
9 years agobus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window
Thomas Petazzoni [Fri, 9 Jan 2015 16:59:04 +0000 (10:59 -0600)]
bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window

The mvebu-mbus driver reads the SDRAM window registers, and make the
information about the DRAM CS configuration available to device
drivers using the mv_mbus_dram_info() API. This information is used by
the DMA-capable device drivers to program their address decoding
windows.

Until now, we were basically providing the SDRAM window register
details as is. However, it turns out that the DMA capability of the
CESA cryptographic engine consists in doing DMA being the DRAM and the
crypto SRAM mapped as a MBus window. For this case, it is very
important that the SDRAM CS information does not overlap with the MBus
bridge window.

Therefore, this commit improves the mvebu-mbus driver to make sure we
adjust the SDRAM CS information so that it doesn't overlap with the
MBus bridge window. This problem was reported by Boris Brezillon,
while working on the mv_cesa driver for Armada 37x/38x/XP. We use the
memblock memory information to know where the usable RAM is located,
as this information is guaranteed to be correct on all SoC variants.

We could have used the MBus bridge window registers on Armada 370/XP,
but they are not really used on Armada 375/38x (Cortex-A9 based),
since the PL310 L2 filtering is used instead to discriminate between
RAM accesses and I/O accesses. Therefore, using the memblock
information is more generic and works accross the different platforms.

Reported-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Andrew Lunn <andrew@lunn.ch>: Fixed merge conflict]
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
9 years agobus: mvebu-mbus: fix support of MBus window 13 on Armada XP/375/38x
Michal Mazur [Tue, 30 Dec 2014 12:43:43 +0000 (13:43 +0100)]
bus: mvebu-mbus: fix support of MBus window 13 on Armada XP/375/38x

On Armada XP, 375 and 38x the MBus window 13 has the remap capability,
like windows 0 to 7. However, the mvebu-mbus driver isn't currently
taking into account this special case, which means that when window 13
is actually used, the remap registers are left to 0, making the device
using this MBus window unavailable.

To make things even more fun, the hardware designers have chosen to
put the window 13 remap registers in a completely custom location,
using a logic that differs from the one used for all other remappable
windows.

To solve this problem, this commit:

 * Adds a SoC specific function to calculate offset of remap registers
   to the mvebu_mbus_soc_data structure. This function,
   ->win_remap_offset(), returns the offset of the remap registers, or
   MVEBU_MBUS_NO_REMAP if the window does not have the remap
   capability. This new function replaces the previous integer field
   num_remappable_wins, which was insufficient to encode the special
   case of window 13.

 * Adds an implementation of the ->win_remap_offset() function for the
   various SoC families. Some have 2 first windows that are remapable,
   some the 4 first, some the 8 first, and then the Armada XP/375/38x
   case where the 8 first are remapable plus the special window
   13. This is implemented in functions
   generic_mbus_win_remap_2_offset(),
   generic_mbus_win_remap_4_offset(),
   generic_mbus_win_remap_8_offset() and
   armada_xp_mbus_win_remap_offset() respectively.

 * Change the code to use the ->win_remap_offset() function when
   accessing the remap registers, and also to use a newly introduced
   mvebu_mbus_window_is_remappable() helper function that tells
   whether a given window is remapable or not.

 * Separate Armada 370 from XP/375/38X because the window 13 of Armada
   370 does not support the remap capability.

[Thomas: adapted for the mainline kernel, minor clarifications in the
code, reword the commit log.]

Signed-off-by: Michal Mazur <arg@semihalf.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Andrew Lunn <andrew@lunn.ch>: Undo the simple fix for stable]
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
9 years agoARM: mvebu: use arm_coherent_dma_ops and re-enable hardware I/O coherency
Thomas Petazzoni [Fri, 16 Jan 2015 16:11:29 +0000 (17:11 +0100)]
ARM: mvebu: use arm_coherent_dma_ops and re-enable hardware I/O coherency

Now that we have enabled automatic I/O synchronization barriers, we no
longer need any explicit barriers. We can therefore simplify
arch/arm/mach-mvebu/coherency.c by using the existing
arm_coherent_dma_ops instead of our custom mvebu_hwcc_dma_ops, and
re-enable hardware I/O coherency support.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Andrew Lunn <andrew@lunn.ch>: Remove forgotten comment]
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
9 years agobus: mvebu-mbus: use automatic I/O synchronization barriers
Thomas Petazzoni [Fri, 16 Jan 2015 16:11:28 +0000 (17:11 +0100)]
bus: mvebu-mbus: use automatic I/O synchronization barriers

Instead of using explicit I/O synchronization barriers shoehorned
inside the streaming DMA mappings API (in
arch/arm/mach-mvebu/coherency.c), we are switching to use automatic
I/O synchronization barrier.

The primary motivation for this change is that explicit I/O
synchronization barriers are not only needed for streaming DMA
mappings (which can easily be done by overriding the dma_map_ops), but
also for coherent DMA mappings (which is a lot less easy to do, since
the kernel assumes such mappings are coherent and don't require any
sort of cache maintenance operation to ensure the consistency of the
buffers).

Switching to automatic I/O synchronization barriers will also allow us
to use the existing arm_coherent_dma_ops instead of our custom
arm_dma_ops.

In order to use automatic I/O synchronization barriers, this commit
changes mvebu-mbus in two ways:

 - It enables automatic I/O synchronization barriers in the 0x84
   register of the MBus bridge, by enabling such barriers for all MBus
   units. This enables automatic barriers for the on-SoC peripherals
   that are doing DMA.

 - It enables the SyncEnable bit in the MBus windows, so that PCIe
   devices also use automatic I/O synchronization barrier.

This automatic synchronization barrier relies on the assumption that
at least one register of a given hardware unit is read before the
driver accesses the DMA mappings modified by this unit. This
assumption is guaranteed for PCI devices by vertue of the PCI
standard, and we can reasonably verify that this assumption is also
true for the limited number of platform drivers doing DMA used on
Marvell EBU platforms.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
9 years agoMerge branch 'mvebu/fixes-3' into mvebu/soc
Andrew Lunn [Mon, 19 Jan 2015 22:00:15 +0000 (16:00 -0600)]
Merge branch 'mvebu/fixes-3' into mvebu/soc

9 years agobus: mvebu-mbus: fix support of MBus window 13
Andrew Lunn [Sun, 18 Jan 2015 15:46:10 +0000 (09:46 -0600)]
bus: mvebu-mbus: fix support of MBus window 13

On Armada XP, 375 and 38x the MBus window 13 has the remap capability,
like windows 0 to 7. However, the mvebu-mbus driver isn't currently
taking into account this special case, which means that when window 13
is actually used, the remap registers are left to 0, making the device
using this MBus window unavailable.

As a minimal fix for stable, don't use window 13. A full fix will
follow later.

Fixes: fddddb52a6c ("bus: introduce an Marvell EBU MBus driver")
Cc: <stable@vger.kernel.org> # v3.10+
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
9 years agoARM: mvebu: completely disable hardware I/O coherency
Thomas Petazzoni [Fri, 16 Jan 2015 16:11:27 +0000 (17:11 +0100)]
ARM: mvebu: completely disable hardware I/O coherency

The current hardware I/O coherency is known to cause problems with DMA
coherent buffers, as it still requires explicit I/O synchronization
barriers, which is not compatible with the semantics expected by the
Linux DMA coherent buffers API.

So, in order to have enough time to validate a new solution based on
automatic I/O synchronization barriers, this commit disables hardware
I/O coherency entirely. Future patches will re-enable it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.8+
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
9 years agoARM: at91: move at91rm9200_idle() to clk/at91/pmc.c
Alexandre Belloni [Thu, 15 Jan 2015 14:59:31 +0000 (15:59 +0100)]
ARM: at91: move at91rm9200_idle() to clk/at91/pmc.c

Move at91rm9200_idle() along with at91sam9_idle() in clk/at91/pmc.c.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Michael Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove unused at91_init_sram
Alexandre Belloni [Thu, 15 Jan 2015 14:59:30 +0000 (15:59 +0100)]
ARM: at91: remove unused at91_init_sram

SRAM initialization is now done through the mmio-sram driver and
at91_init_sram() is not called anymore, remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: sama5d4: remove useless call to at91_init_sram
Alexandre Belloni [Thu, 15 Jan 2015 14:59:29 +0000 (15:59 +0100)]
ARM: at91: sama5d4: remove useless call to at91_init_sram

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove useless map_io
Alexandre Belloni [Thu, 15 Jan 2015 14:59:28 +0000 (15:59 +0100)]
ARM: at91: remove useless map_io

Now that the SRAM is initialized by the mmio-sram driver, .map_io is useless.
remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: pm: prepare for multiplatform
Alexandre Belloni [Thu, 15 Jan 2015 14:59:27 +0000 (15:59 +0100)]
ARM: at91: pm: prepare for multiplatform

Split at91_pm_init() in three variants that are called by the respective SoCs
.init_machine. This allows to remove the of_machine_is_compatible() calls and
move at91_pm_init() out of arch_initcall() which is required for multiplatform.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: pm: add UDP and UHP checks to newer SoCs
Alexandre Belloni [Thu, 15 Jan 2015 14:59:26 +0000 (15:59 +0100)]
ARM: at91: pm: add UDP and UHP checks to newer SoCs

Check UDP and UHP on sam9x5, sam9n12 and the sama5 series.
Check UHP on the sam9g45.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: pm: use the mmio-sram pool to access SRAM
Alexandre Belloni [Thu, 15 Jan 2015 14:59:25 +0000 (15:59 +0100)]
ARM: at91: pm: use the mmio-sram pool to access SRAM

Now that the SRAM is part of a genpool, use it to allocate memory to use for the
slowclock implementation.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: pm: rework cpu detection
Alexandre Belloni [Thu, 15 Jan 2015 14:59:24 +0000 (15:59 +0100)]
ARM: at91: pm: rework cpu detection

Store SoC differences in a struct to remove cpu_is_* usage.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoMerge tag 'at91-dt' into at91-3.20-cleanup
Nicolas Ferre [Fri, 16 Jan 2015 16:18:34 +0000 (17:18 +0100)]
Merge tag 'at91-dt' into at91-3.20-cleanup

9 years agoARM: STi: Add STiH418 SoC support
Maxime COQUELIN [Fri, 9 Jan 2015 15:11:00 +0000 (16:11 +0100)]
ARM: STi: Add STiH418 SoC support

This patch adds support to STiH418 SoC.

Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
9 years agoARM: shmobile: R-Mobile: Special-case PM domains with memory-controllers
Geert Uytterhoeven [Wed, 14 Jan 2015 12:11:22 +0000 (13:11 +0100)]
ARM: shmobile: R-Mobile: Special-case PM domains with memory-controllers

Add a special case for PM domains containing a memory-controller.
Such a PM domain must not be turned off if memory is in use.

On sh73a0 PM domains A4BC0 and A4BC1 each contain an SDRAM Bus State
Controller (SBSC). On r8a73a4 PM domain A3BC contains two DDR Bus
Controllers (DBSC).  In both cases, there are no other devices in these
PM domains, so they were eligible for power down, crashing the system.

On r8a7740 the DDR3 Bus State Controller (DBSC3) is located in A4S,
whose child domain A3SM contains the CPU core. Hence A4S is never turned
off, and no crash happened.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: shmobile: R-Mobile: Generalize adding/looking up special PM domains
Geert Uytterhoeven [Wed, 14 Jan 2015 12:11:21 +0000 (13:11 +0100)]
ARM: shmobile: R-Mobile: Generalize adding/looking up special PM domains

Make adding special PM domains to an array, and looking them up
later, more generic, so it can be used for all special hardware blocks.
The type of PM domain is also stored, so rmobile_setup_pm_domain() can
use a switch() statement instead of a chain of if/else statements.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: shmobile: R-Mobile: Consolidate rmobile_pd_suspend_*()
Geert Uytterhoeven [Wed, 14 Jan 2015 12:11:20 +0000 (13:11 +0100)]
ARM: shmobile: R-Mobile: Consolidate rmobile_pd_suspend_*()

Consolidate the identical rmobile_pd_suspend_*() routines that just
return -EBUSY to prevent a PM domain from being powered down into a
single rmobile_pd_suspend_busy().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: at91: dts: sama5d3: add ov2640 camera sensor support
Josh Wu [Wed, 14 Jan 2015 02:41:54 +0000 (10:41 +0800)]
ARM: at91: dts: sama5d3: add ov2640 camera sensor support

According to v4l2 dt document, we add:
  a camera host: ISI port.
  a i2c camera sensor: ov2640 port.
to sama5d3xmb.dtsi.

The ov2640 node defines the pinctrls, clocks and refer to isi port.
The ISI node also has a reference to the ov2640 port.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dts: sama5d3: change name of pinctrl of ISI_MCK
Josh Wu [Sun, 4 Jan 2015 09:02:31 +0000 (17:02 +0800)]
ARM: at91: dts: sama5d3: change name of pinctrl of ISI_MCK

For sama5d3xmb board, the pins: pinctrl_isi_pck_as_mck is pck1, and
used to provide MCK for camera sensor.

We change its name to: pinctrl_pck1_as_isi_mck.

As we want camera sensor instead of ISI to configure the pck1 (ISI_MCK) pin.
So we remove this pinctrl from ISI DT node. It will be added in sensor's
DT node.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dts: sama5d3: change name of pinctrl_isi_{power,reset}
Josh Wu [Sun, 4 Jan 2015 09:02:30 +0000 (17:02 +0800)]
ARM: at91: dts: sama5d3: change name of pinctrl_isi_{power,reset}

For sama5d3xmb board, the pins: pinctrl_isi_{power,reset} is used to
power-down or reset camera sensor.
So we should let camera sensor instead of ISI to configure the pins.

This patch will change pinctrl name from pinctrl_isi_{power,reset} to
pinctrl_sensor_{power,reset}. And remove these two pinctrl from ISI's
DT node. We will add these two pinctrl to sensor's DT node.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dts: sama5d3: move the isi mck pin to mb
Bo Shen [Sun, 4 Jan 2015 09:02:29 +0000 (17:02 +0800)]
ARM: at91: dts: sama5d3: move the isi mck pin to mb

The mck is decided by the board design, move it to mb related
dtsi file.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dts: sama5d3: add missing pins of isi
Bo Shen [Sun, 4 Jan 2015 09:02:28 +0000 (17:02 +0800)]
ARM: at91: dts: sama5d3: add missing pins of isi

The ISI has 12 data lines, add the missing two data lines.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dts: sama5d3: split isi pinctrl
Bo Shen [Sun, 4 Jan 2015 09:02:27 +0000 (17:02 +0800)]
ARM: at91: dts: sama5d3: split isi pinctrl

As the ISI has 12 data lines, however we only use 8 data lines with
sensor module. So, split the data line into two groups which make
it can be choosed depends on the hardware design.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dts: sama5d3: add isi clock
Josh Wu [Sun, 4 Jan 2015 09:02:26 +0000 (17:02 +0800)]
ARM: at91: dts: sama5d3: add isi clock

Add ISI peripheral clock in sama5d3.dtsi.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: ethernut5: use at91sam9xe.dtsi
Alexandre Belloni [Tue, 13 Jan 2015 18:12:26 +0000 (19:12 +0100)]
ARM: at91/dt: ethernut5: use at91sam9xe.dtsi

The ethernut5 is actually based on an at91sam9xe, use the correct dts include.

Cc: Martin Reimann <martin.reimann@egnite.de>
Cc: Tim Schendekehl <tim.schendekehl@egnite.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: Add a dtsi for at91sam9xe
Alexandre Belloni [Tue, 13 Jan 2015 18:12:25 +0000 (19:12 +0100)]
ARM: at91/dt: Add a dtsi for at91sam9xe

at91sam9xe is slightly different from at91sam9260, in particular it has a
different SRAM size and location.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: add SRAM nodes
Alexandre Belloni [Tue, 13 Jan 2015 18:12:24 +0000 (19:12 +0100)]
ARM: at91/dt: add SRAM nodes

Add nodes for the SRAM available on atmel SoCs
For the at91sam9260 and the at91sam9g20, address mirroring is used to create a
single contiguous SRAM range instead of declaring two separate banks.

Also remove leftover TODOs in the sam9g45 file

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[nicolas.ferre@atmel.com: correct at91sam9rl sram size => 0x10000]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: at91rm9200ek: enable RTC
Alexandre Belloni [Tue, 13 Jan 2015 18:12:23 +0000 (19:12 +0100)]
ARM: at91/dt: at91rm9200ek: enable RTC

Enable the RTC on the at91rm9200ek.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: rm9200: add RTC node
Alexandre Belloni [Tue, 13 Jan 2015 18:12:22 +0000 (19:12 +0100)]
ARM: at91/dt: rm9200: add RTC node

Add a node for the RTC available on at91rm9200.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: at91sam9n12: Add RTC node
Alexandre Belloni [Tue, 13 Jan 2015 18:12:21 +0000 (19:12 +0100)]
ARM: at91/dt: at91sam9n12: Add RTC node

Add node for the RTC available on the at91sam9n12.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove useless at91rm9200_set_type()
Alexandre Belloni [Mon, 12 Jan 2015 18:42:16 +0000 (19:42 +0100)]
ARM: at91: remove useless at91rm9200_set_type()

Since all rm9200 board files have been removed, there is no user of
at91rm9200_set_type() left. Remove it

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove useless at91rm9200_dt_initialize()
Alexandre Belloni [Mon, 12 Jan 2015 18:42:15 +0000 (19:42 +0100)]
ARM: at91: remove useless at91rm9200_dt_initialize()

at91rm9200_dt_initialize() is doing the same as at91_dt_initialize(), use that
one instead.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: move debug-macro.S into the common space
Alexandre Belloni [Mon, 12 Jan 2015 18:42:14 +0000 (19:42 +0100)]
ARM: at91: move debug-macro.S into the common space

Move debug-macro.S from include/mach/ to include/debug where all other common
debug macros are.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove useless at91_sysirq_mask_rtx
Alexandre Belloni [Mon, 12 Jan 2015 18:42:13 +0000 (19:42 +0100)]
ARM: at91: remove useless at91_sysirq_mask_rtx

The irq fixup from at91_sysirq_mask_rtc and at91_sysirq_mask_rtt is now handled
by aic_common_rtc_irq_fixup and aic_common_rtt_irq_fixup. Remove those useless
functions.
Also remove the now unused mach/at91_rtt.h header.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove useless config MACH_AT91SAM9_DT
Alexandre Belloni [Mon, 12 Jan 2015 18:42:12 +0000 (19:42 +0100)]
ARM: at91: remove useless config MACH_AT91SAM9_DT

Now that at91sam9 SoCs are only supported through DT, remove
CONFIG_MACH_AT91SAM9_DT and use CONFIG_SOC_AT91SAM9 instead.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove useless config MACH_AT91RM9200_DT
Alexandre Belloni [Mon, 12 Jan 2015 18:42:11 +0000 (19:42 +0100)]
ARM: at91: remove useless config MACH_AT91RM9200_DT

Now that rm9200 is only supported through DT, remove CONFIG_MACH_AT91RM9200_DT
and use CONFIG_SOC_AT91RM9200 instead.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove unused mach/memory.h
Alexandre Belloni [Mon, 12 Jan 2015 18:42:10 +0000 (19:42 +0100)]
ARM: at91: remove unused mach/memory.h

CONFIG_NEED_MACH_MEMORY_H is not set by any at91 platform, remove mach/memory.h

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove useless header file includes
Boris Brezillon [Thu, 4 Dec 2014 14:26:09 +0000 (15:26 +0100)]
ARM: at91: remove useless header file includes

Since removal of !DT boards, asm/irq.h inclusion is not needed in these product
files.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: remove unneeded header file
Nicolas Ferre [Thu, 4 Dec 2014 14:09:47 +0000 (15:09 +0100)]
ARM: at91: remove unneeded header file

These GPIO pin descriptions are now moved with the pinctrl driver. We can
safely remove this useless header file.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agortc: at91/Kconfig: remove useless options
Nicolas Ferre [Thu, 4 Dec 2014 13:59:24 +0000 (14:59 +0100)]
rtc: at91/Kconfig: remove useless options

As we removed all the !DT boards during 3.19 cycle, we can now remove these
options.

Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/Documentation: add a README for Atmel SoCs
Nicolas Ferre [Tue, 6 Jan 2015 10:25:12 +0000 (11:25 +0100)]
ARM: at91/Documentation: add a README for Atmel SoCs

Add a README file to describe Atmel SoCs (aka AT91) support in Mainline Linux:
- SoC list + datasheet web links
- Basic but useful information
- Device Tree conventions and Work In Progress statement.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Olof Johansson <olof@lixom.net>
9 years agoARM: at91: sama5d4: Add SFR
Alexandre Belloni [Thu, 18 Dec 2014 09:45:52 +0000 (10:45 +0100)]
ARM: at91: sama5d4: Add SFR

The sama4d4 has Special Function Registers that allow to manage DDR, OHCI, EBI
and AIC interrupt redirection.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[nicolas.ferre@atmel.com: reg size: 0x60]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: sama5d3: Add SFR
Alexandre Belloni [Thu, 18 Dec 2014 09:45:51 +0000 (10:45 +0100)]
ARM: at91: sama5d3: Add SFR

The sama5d3 has Special Function Registers that allow to manage OHCI, EBI and
the UTMI clock.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[nicolas.ferre@atmel.com: reg size: 0x60]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: Add Special Function Registers binding documentation
Alexandre Belloni [Thu, 18 Dec 2014 09:45:50 +0000 (10:45 +0100)]
ARM: at91: Add Special Function Registers binding documentation

The special function registers gather some registers that allow to tweak
features provided by IPs controlled through another register range.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[nicolas.ferre@atmel.com: reg size: 0x60]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sam9263: Fix typo: ac91_clk -> ac97_clk
Alexander Stein [Fri, 5 Dec 2014 14:16:55 +0000 (15:16 +0100)]
ARM: at91/dt: sam9263: Fix typo: ac91_clk -> ac97_clk

That clock should be called ac97_clk.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sama5d3: enable D2 as the heartbeat LED
Josh Wu [Tue, 9 Dec 2014 10:54:46 +0000 (18:54 +0800)]
ARM: at91/dt: sama5d3: enable D2 as the heartbeat LED

This D2 led is available for all sama5d3x-ek board. So make it a
heartbeat LED.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoMerge tag 'mvebu-soc-3.20' of git://git.infradead.org/linux-mvebu into next/soc
Olof Johansson [Thu, 15 Jan 2015 00:42:15 +0000 (16:42 -0800)]
Merge tag 'mvebu-soc-3.20' of git://git.infradead.org/linux-mvebu into next/soc

Merge "mvebu: SoC for 3.20" from Andrew Lunn:

mvebu SoC changes for v3.20 (part #1)

- Update the SoC ID and revision definitions
- Add UART1 as DEBUG_LL possible target
- Rename DEBUG_LL to indicate UART index

* tag 'mvebu-soc-3.20' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: Update the SoC ID and revision definitions
  ARM: mvebu: Add UART1 as DEBUG_LL possible target
  ARM: mvebu: Rename DEBUG_LL to indicate UART index

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: shmobile: R-Mobile: Add DT support for PM domains
Geert Uytterhoeven [Wed, 3 Dec 2014 13:41:45 +0000 (14:41 +0100)]
ARM: shmobile: R-Mobile: Add DT support for PM domains

Populate the PM domains from DT, and provide support to hook up devices
to their respective PM domain.

The always-on power area (e.g. C5 on r8a7740) is created as a PM domain
without software control, to allow Run-Time management of module clocks
for hardware blocks inside this area.

Special cases like PM domains containing CPUs, the console device, or
Coresight-ETM, are handled by scanning the DT topology.

As long as the ARM debug/perf code doesn't use resource management with
runtime PM support, the power area containing Coresight-ETM (e.g. D4 on
r8a7740) must be kept powered to avoid a crash during resume from s2ram
(dbg_cpu_pm_notify() calls reset_ctrl_regs() unconditionally, causing an
undefined instruction oops).

Initialization is done from core_initcall(), as the
"renesas,intc-irqpin" driver uses postcore_initcall().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: sirf: drop Marco low-level debug port
Barry Song [Sun, 4 Jan 2015 06:31:39 +0000 (14:31 +0800)]
ARM: sirf: drop Marco low-level debug port

Marco will not be supported any more. it has been replaced by CSR
Atlas7.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
9 years agoMerge tag 'arm-soc/for-3.20/brcmstb-smp' of http://github.com/broadcom/stblinux into...
Olof Johansson [Tue, 13 Jan 2015 23:23:49 +0000 (15:23 -0800)]
Merge tag 'arm-soc/for-3.20/brcmstb-smp' of github.com/broadcom/stblinux into next/soc

Merge "ARM: brcmstb: SMP updates for v3.20" from Florian Fainelli:

This pull request contains updates to the brcmstb SMP code to use the manual
sequence instead of hardware state machine since it is not reliable.

* tag 'arm-soc/for-3.20/brcmstb-smp' of http://github.com/broadcom/stblinux:
  ARM: brcmstb: update CPU power management sequence

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agoARM: shmobile: R-Mobile: Store SYSC base address in rmobile_pm_domain
Geert Uytterhoeven [Wed, 3 Dec 2014 13:41:44 +0000 (14:41 +0100)]
ARM: shmobile: R-Mobile: Store SYSC base address in rmobile_pm_domain

Replace the hardcoded addresses for accessing the SYSC PM domain
registers by register offsets, relative to the SYSC base address stored
in struct rmobile_pm_domain.

In the future, the SYSC base address will come from DT.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: shmobile: R-Mobile: Use generic_pm_domain.attach_dev() for pm_clk setup
Geert Uytterhoeven [Wed, 3 Dec 2014 13:41:42 +0000 (14:41 +0100)]
ARM: shmobile: R-Mobile: Use generic_pm_domain.attach_dev() for pm_clk setup

Use the just introduced genpd attach/detach callbacks to register the
devices' module clocks, instead of doing it directly, to make it
DT-proof.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: brcmstb: update CPU power management sequence
Brian Norris [Wed, 17 Dec 2014 03:13:50 +0000 (19:13 -0800)]
ARM: brcmstb: update CPU power management sequence

The automatic CPU power state machine for B15 CPUs does not work
reliably as-is. This patch implements a manual sequence in software to
replace it.

This was tested successfully with over 10,000 hotplug cycles of
something like this:

  echo 0 > /sys/devices/system/cpu/cpu1/online
  echo 1 > /sys/devices/system/cpu/cpu1/online

whereas the existing sequence often locks up after a few hundred cycles.

Fixes: 62639c2f5332 ("ARM: brcmstb: reintroduce SMP support")
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoMerge tag 'renesas-soc-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Mon, 12 Jan 2015 22:35:09 +0000 (14:35 -0800)]
Merge tag 'renesas-soc-for-v3.20' of git://git./linux/kernel/git/horms/renesas into next/soc

Merge "Renesas ARM Based SoC Updates for v3.20" from Simon Horman:

* Multiplatform support for r8a73a4
* No TWD setup in C for Multiplatform on r8a7779
* Fix is_e2 warning in generic R-Car Gen2 SoC setup code
* Add missing Add missing legacy INTCA0 clock for irqpin module on sh73a0

* tag 'renesas-soc-for-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a73a4: Multiplatform support
  ARM: shmobile: r8a7779: No TWD setup in C for Multiplatform
  ARM: shmobile: Fix is_e2 warning
  ARM: shmobile: sh73a0 legacy/reference: Add missing INTCA0 clock for irqpin module

Signed-off-by: Olof Johansson <olof@lixom.net>
9 years agolinux 3.19-rc4
Linus Torvalds [Sun, 11 Jan 2015 20:44:53 +0000 (12:44 -0800)]
linux 3.19-rc4

9 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Sun, 11 Jan 2015 20:44:10 +0000 (12:44 -0800)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Three small fixes from over the Christmas period, and wiring up the
  new execveat syscall for ARM"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error
  ARM: 8253/1: mm: use phys_addr_t type in map_lowmem() for kernel mem region
  ARM: 8249/1: mm: dump: don't skip regions
  ARM: wire up execveat syscall

9 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:53:46 +0000 (11:53 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Misc fixes: two vdso fixes, two kbuild fixes and a boot failure fix
  with certain odd memory mappings"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, vdso: Use asm volatile in __getcpu
  x86/build: Clean auto-generated processor feature files
  x86: Fix mkcapflags.sh bash-ism
  x86: Fix step size adjustment during initial memory mapping
  x86_64, vdso: Fix the vdso address randomization algorithm

9 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:51:49 +0000 (11:51 -0800)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Misc fixes: group scheduling corner case fix, two deadline scheduler
  fixes, effective_load() overflow fix, nested sleep fix, 6144 CPUs
  system fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix RCU stall upon -ENOMEM in sched_create_group()
  sched/deadline: Avoid double-accounting in case of missed deadlines
  sched/deadline: Fix migration of SCHED_DEADLINE tasks
  sched: Fix odd values in effective_load() calculations
  sched, fanotify: Deal with nested sleeps
  sched: Fix KMALLOC_MAX_SIZE overflow during cpumask allocation

9 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:47:45 +0000 (11:47 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Mostly tooling fixes, but also some kernel side fixes: uncore PMU
  driver fix, user regs sampling fix and an instruction decoder fix that
  unbreaks PEBS precise sampling"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/uncore/hsw-ep: Handle systems with only two SBOXes
  perf/x86_64: Improve user regs sampling
  perf: Move task_pt_regs sampling into arch code
  x86: Fix off-by-one in instruction decoder
  perf hists browser: Fix segfault when showing callchain
  perf callchain: Free callchains when hist entries are deleted
  perf hists: Fix children sort key behavior
  perf diff: Fix to sort by baseline field by default
  perf list: Fix --raw-dump option
  perf probe: Fix crash in dwarf_getcfi_elf
  perf probe: Fix to fall back to find probe point in symbols
  perf callchain: Append callchains only when requested
  perf ui/tui: Print backtrace symbols when segfault occurs
  perf report: Show progress bar for output resorting

9 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:46:31 +0000 (11:46 -0800)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "A liblockdep fix and a mutex_unlock() mutex-debugging fix"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  mutex: Always clear owner field upon mutex_unlock()
  tools/liblockdep: Fix debug_check thinko in mutex destroy

9 years agomm: fix corner case in anon_vma endless growing prevention
Konstantin Khlebnikov [Sun, 11 Jan 2015 13:54:06 +0000 (16:54 +0300)]
mm: fix corner case in anon_vma endless growing prevention

Fix for BUG_ON(anon_vma->degree) splashes in unlink_anon_vmas() ("kernel
BUG at mm/rmap.c:399!") caused by commit 7a3ef208e662 ("mm: prevent
endless growth of anon_vma hierarchy")

Anon_vma_clone() is usually called for a copy of source vma in
destination argument.  If source vma has anon_vma it should be already
in dst->anon_vma.  NULL in dst->anon_vma is used as a sign that it's
called from anon_vma_fork().  In this case anon_vma_clone() finds
anon_vma for reusing.

Vma_adjust() calls it differently and this breaks anon_vma reusing
logic: anon_vma_clone() links vma to old anon_vma and updates degree
counters but vma_adjust() overrides vma->anon_vma right after that.  As
a result final unlink_anon_vmas() decrements degree for wrong anon_vma.

This patch assigns ->anon_vma before calling anon_vma_clone().

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reported-and-tested-by: Chris Clayton <chris2553@googlemail.com>
Reported-and-tested-by: Oded Gabbay <oded.gabbay@amd.com>
Reported-and-tested-by: Chih-Wei Huang <cwhuang@android-x86.org>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Daniel Forrest <dan.forrest@ssec.wisc.edu>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # to match back-porting of 7a3ef208e662
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm: Don't count the stack guard page towards RLIMIT_STACK
Linus Torvalds [Sun, 11 Jan 2015 19:33:57 +0000 (11:33 -0800)]
mm: Don't count the stack guard page towards RLIMIT_STACK

Commit fee7e49d4514 ("mm: propagate error from stack expansion even for
guard page") made sure that we return the error properly for stack
growth conditions.  It also theorized that counting the guard page
towards the stack limit might break something, but also said "Let's see
if anybody notices".

Somebody did notice.  Apparently android-x86 sets the stack limit very
close to the limit indeed, and including the guard page in the rlimit
check causes the android 'zygote' process problems.

So this adds the (fairly trivial) code to make the stack rlimit check be
against the actual real stack size, rather than the size of the vma that
includes the guard page.

Reported-and-tested-by: Chih-Wei Huang <cwhuang@android-x86.org>
Cc: Jay Foad <jay.foad@gmail.com>
Cc: stable@kernel.org # to match back-porting of fee7e49d4514
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoMerge branch 'core/urgent' into locking/urgent, to collect all pending locking fixes
Ingo Molnar [Sun, 11 Jan 2015 08:18:05 +0000 (09:18 +0100)]
Merge branch 'core/urgent' into locking/urgent, to collect all pending locking fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agoMerge tag 'vfio-v3.19-rc4' of git://github.com/awilliam/linux-vfio
Linus Torvalds [Sat, 10 Jan 2015 20:23:03 +0000 (12:23 -0800)]
Merge tag 'vfio-v3.19-rc4' of git://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:
 "Fix PCI header check in vfio_pci_probe() (Wei Yang)"

* tag 'vfio-v3.19-rc4' of git://github.com/awilliam/linux-vfio:
  vfio-pci: Fix the check on pci device type in vfio_pci_probe()

9 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 10 Jan 2015 19:59:25 +0000 (11:59 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "Just one fix: a qlogic busy wait regression"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  qla2xxx: fix busy wait regression

9 years agoMerge tag 'sound-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Sat, 10 Jan 2015 05:23:27 +0000 (21:23 -0800)]
Merge tag 'sound-3.19-rc4' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All a few small regression or stable fixes: a Nvidia HDMI ID addition,
  a regression fix for CAIAQ stream count, a typo fix for GPIO setup
  with STAC/IDT HD-audio codecs, and a Fireworks big-endian fix"

* tag 'sound-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: fireworks: fix an endianness bug for transaction length
  ALSA: hda - Add new GPU codec ID 0x10de0072 to snd-hda
  ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs
  ALSA: snd-usb-caiaq: fix stream count check

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Sat, 10 Jan 2015 05:18:48 +0000 (21:18 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID updates from Jiri Kosina:

 - bounds checking fixes in logitech and roccat drivers, from Peter Wu
   and Dan Carpenter

 - double-kfree fix in i2c-hid driver on bus shutdown, from Mika
   Westerberg

 - a couple of various small driver fixes

 - a few device id additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
  HID: Add a new id 0x501a for Genius MousePen i608X
  HID: logitech-hidpp: prefix the name with "Logitech"
  HID: logitech-hidpp: avoid unintended fall-through
  HID: Allow HID_BATTERY_STRENGTH to be enabled
  HID: i2c-hid: Do not free buffers in i2c_hid_stop()
  HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard
  HID: logitech-hidpp: check WTP report length
  HID: logitech-dj: check report length

9 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Sat, 10 Jan 2015 05:13:34 +0000 (21:13 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "I'm briefly working between holidays and LCA, so this is close to a
  couple of weeks of fixes,

  Two sets of amdkfd fixes, this is a new feature this kernel, and this
  pull fixes a few issues since it got merged, ordering when built-in to
  kernel and also the iommu vs gpu ordering patch, it also reworks the
  ioctl before the initial release.

  Otherwise:
   - radeon: some misc fixes all over, hdmi, 4k, dpm
   - nouveau: mcp77 init fixes, oops fix, bug on fix, msi fix
   - i915: power fixes, revert VGACNTR patch

  Probably be quiteer next week since I'll be at LCA anyways"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (33 commits)
  drm/amdkfd: rewrite kfd_ioctl() according to drm_ioctl()
  drm/amdkfd: reformat IOCTL definitions to drm-style
  drm/amdkfd: Do copy_to/from_user in general kfd_ioctl()
  drm/radeon: integer underflow in radeon_cp_dispatch_texture()
  drm/radeon: adjust default bapm settings for KV
  drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
  drm/radeon: fix sad_count check for dce3
  drm/radeon: KV has three PPLLs (v2)
  drm/amdkfd: unmap VMID<-->PASID when relesing VMID (non-HWS)
  drm/radeon: Init amdkfd only if it was compiled
  amdkfd: actually allocate longs for the pasid bitmask
  drm/nouveau/nouveau: Do not BUG_ON(!spin_is_locked()) on UP
  drm/nv4c/mc: disable msi
  drm/nouveau/fb/ram/mcp77: enable NISO poller
  drm/nouveau/fb/ram/mcp77: use carveout reg to determine size
  drm/nouveau/fb/ram/mcp77: subclass nouveau_ram
  drm/nouveau: wake up the card if necessary during gem callbacks
  drm/nouveau/device: Add support for GK208B, resolves bug 86935
  drm/nouveau: fix missing return statement in nouveau_ttm_tt_unpopulate
  drm/nouveau/bios: fix oops on pre-nv50 chipsets
  ...

9 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Sat, 10 Jan 2015 04:57:58 +0000 (20:57 -0800)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Here is a handful of minor arm64 fixes discovered and fixed over the
  Christmas break.  The main part is adding some missing #includes that
  we seem to be getting transitively but have started causing problems
  in -next.

   - Fix early mapping fixmap corruption by EFI runtime services
   - Fix __NR_compat_syscalls off-by-one
   - Add missing sanity checks for some 32-bit registers
   - Add some missing #includes which we get transitively
   - Remove unused prepare_to_copy() macro"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/efi: add missing call to early_ioremap_reset()
  arm64: fix missing asm/io.h include in kernel/smp_spin_table.c
  arm64: fix missing asm/alternative.h include in kernel/module.c
  arm64: fix missing linux/bug.h include in asm/arch_timer.h
  arm64: fix missing asm/pgtable-hwdef.h include in asm/processor.h
  arm64: sanity checks: add missing AArch32 registers
  arm64: Remove unused prepare_to_copy()
  arm64: Correct __NR_compat_syscalls for bpf

9 years agoMerge tag 'for_linus-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jwess...
Linus Torvalds [Sat, 10 Jan 2015 04:51:10 +0000 (20:51 -0800)]
Merge tag 'for_linus-3.19-rc4' of git://git./linux/kernel/git/jwessel/kgdb

Pull kgdb/kdb fixes from Jason Wessel:
 "These have been around since 3.17 and in kgdb-next for the last 9
  weeks and some will go back to -stable.

  Summary of changes:

  Cleanups
   - kdb: Remove unused command flags, repeat flags and KDB_REPEAT_NONE

  Fixes
   - kgdb/kdb: Allow access on a single core, if a CPU round up is
     deemed impossible, which will allow inspection of the now "trashed"
     kernel
   - kdb: Add enable mask for the command groups
   - kdb: access controls to restrict sensitive commands"

* tag 'for_linus-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
  kernel/debug/debug_core.c: Logging clean-up
  kgdb: timeout if secondary CPUs ignore the roundup
  kdb: Allow access to sensitive commands to be restricted by default
  kdb: Add enable mask for groups of commands
  kdb: Categorize kdb commands (similar to SysRq categorization)
  kdb: Remove KDB_REPEAT_NONE flag
  kdb: Use KDB_REPEAT_* values as flags
  kdb: Rename kdb_register_repeat() to kdb_register_flags()
  kdb: Rename kdb_repeat_t to kdb_cmdflags_t, cmd_repeat to cmd_flags
  kdb: Remove currently unused kdbtab_t->cmd_flags

9 years agoMerge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Sat, 10 Jan 2015 02:10:48 +0000 (18:10 -0800)]
Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux

Pull two nfsd bugfixes from Bruce Fields.

* 'for-3.19' of git://linux-nfs.org/~bfields/linux:
  rpc: fix xdr_truncate_encode to handle buffer ending on page boundary
  nfsd: fix fi_delegees leak when fi_had_conflict returns true

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Sat, 10 Jan 2015 01:55:00 +0000 (17:55 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull two Ceph fixes from Sage Weil:
 "These are both pretty trivial: a sparse warning fix and size_t printk
  thing"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: fix sparse endianness warnings
  ceph: use %zu for len in ceph_fill_inline_data()

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sat, 10 Jan 2015 01:46:07 +0000 (17:46 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "None of these are huge, but my commit does fix a regression from 3.18
  that could cause lost files during log replay.

  This also adds Dave Sterba to the list of Btrfs maintainers.  It
  doesn't mean we're doing things differently, but Dave has really been
  helping with the maintainer workload for years"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: don't delay inode ref updates during log replay
  Btrfs: correctly get tree level in tree_backref_for_extent
  Btrfs: call inode_dec_link_count() on mkdir error path
  Btrfs: abort transaction if we don't find the block group
  Btrfs, scrub: uninitialized variable in scrub_extent_for_parity()
  Btrfs: add more maintainers

9 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Fri, 9 Jan 2015 23:10:59 +0000 (15:10 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "12 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed
  memcg: fix destination cgroup leak on task charges migration
  mm: memcontrol: switch soft limit default back to infinity
  mm/debug_pagealloc: remove obsolete Kconfig options
  vfs: renumber FMODE_NONOTIFY and add to uniqueness check
  arch/blackfin/mach-bf533/boards/stamp.c: add linux/delay.h
  ocfs2: fix the wrong directory passed to ocfs2_lookup_ino_from_name() when link file
  MAINTAINERS: update rydberg's addresses
  mm: protect set_page_dirty() from ongoing truncation
  mm: prevent endless growth of anon_vma hierarchy
  exit: fix race between wait_consider_task() and wait_task_zombie()
  ocfs2: remove bogus check in dlm_process_recovery_data

9 years agoARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error
Victor Kamensky [Fri, 9 Jan 2015 17:55:45 +0000 (18:55 +0100)]
ARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error

In v3.19-rc3 tree when CONFIG_ARM_LPAE and CONFIG_DEBUG_RODATA are enabled
image failed to compile with the following error:

arch/arm/mm/init.c:661:14: error: ‘PMD_SECT_RDONLY’ undeclared here (not in a function)

It seems that '80d6b0c ARM: mm: allow text and rodata sections to be read-only'
and 'ded9477 ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE'
commits crossed. 80d6b0c uses PMD_SECT_RDONLY macro but ded9477 renames it
and uses software bits L_PMD_SECT_RDONLY instead.

Fix is to use L_PMD_SECT_RDONLY instead PMD_SECT_RDONLY as ded9477 does in
another places.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
9 years agoARM: mvebu: Update the SoC ID and revision definitions
Gregory CLEMENT [Thu, 8 Jan 2015 15:08:08 +0000 (16:08 +0100)]
ARM: mvebu: Update the SoC ID and revision definitions

Add the missing SoC and revision ID for the Armada 370 and 38x SoCs.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
9 years agoARM: mvebu: Add UART1 as DEBUG_LL possible target
Maxime Ripard [Thu, 8 Jan 2015 17:38:04 +0000 (18:38 +0100)]
ARM: mvebu: Add UART1 as DEBUG_LL possible target

Some mvebu boards have the UART1 more easily accessible than the other UARTs
found on the system.

Add a debug_ll option for this case.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>