deliverable/linux.git
10 years agoMIPS: Support hard limit of cpu count (nr_cpu_ids)
Huacai Chen [Thu, 26 Jun 2014 03:41:25 +0000 (11:41 +0800)] 
MIPS: Support hard limit of cpu count (nr_cpu_ids)

On MIPS currently, only the soft limit of cpu count (maxcpus) has its
effect, this patch enable the hard limit (nr_cpus) as well. Processor
cores which greater than maxcpus and less than nr_cpus can be taken up
via cpu hotplug. The code is borrowed from X86.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7183/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Remove incorrect NULL check in local_flush_tlb_page()
Emil Goode [Sat, 5 Jul 2014 23:23:58 +0000 (01:23 +0200)] 
MIPS: Remove incorrect NULL check in local_flush_tlb_page()

We check that the struct vm_area_struct pointer vma is NULL and then
dereference it a few lines below. The intent was to make sure vma is
not NULL but this is not necessary since the bug pre-dates GIT history
and seem to never have caused a problem. The tlb-4k and tlb-8k versions
of local_flush_tlb_page() don't bother checking if vma is NULL, also
vma is dereferenced before being passed to local_flush_tlb_page(),
thus it is safe to remove this NULL check.

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Reviewed-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7264/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: smp-cps: Fix entry code cache flush for systems with coherent I/O
Paul Burton [Wed, 9 Jul 2014 11:51:05 +0000 (12:51 +0100)] 
MIPS: smp-cps: Fix entry code cache flush for systems with coherent I/O

The dma_cache_wback_inv function performs exactly as is required here,
unless the system has coherent I/O in which case it's a no-op. Call the
underlying cache writeback functions directly, which is arguably clearer
anyway given that the code doesn't actually have anything to do with
DMA in a strict sense.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7282/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: {pm,smp}-cps: use cpu_vpe_id macro
Paul Burton [Wed, 9 Jul 2014 11:48:21 +0000 (12:48 +0100)] 
MIPS: {pm,smp}-cps: use cpu_vpe_id macro

When determining the VPE ID of a CPU, make use of the cpu_vpe_id macro
which will return 0 in a non-MT kernel build. Most code is already doing
so but a couple of places weren't. Fixing this prevents a build failure
for non-MT kernels where struct cpuinfo_mips does not contain the vpe_id
field:

  arch/mips/kernel/pm-cps.c: In function 'cps_pm_enter_state':
  arch/mips/kernel/pm-cps.c:153:51: error: 'struct cpuinfo_mips' has no
      member named 'vpe_id'
    vpe_cfg = &core_cfg->vpe_config[current_cpu_data.vpe_id];

  arch/mips/kernel/smp-cps.c: In function 'wait_for_sibling_halt':
  arch/mips/kernel/smp-cps.c:363:33: error: 'struct cpuinfo_mips' has no
      member named 'vpe_id'
    unsigned vpe_id = cpu_data[cpu].vpe_id;

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Fix potential build failures using cpu_vpe_id on non-MT
Paul Burton [Wed, 9 Jul 2014 11:48:20 +0000 (12:48 +0100)] 
MIPS: Fix potential build failures using cpu_vpe_id on non-MT

When used in a non-MT kernel, the cpu_vpe_id macro never made use of
its cpuinfo argument. It doesn't actually need to since it is returning
a constant 0. However not using the argument can lead to build failures
if the compiler then notices that a variable used as part of the
argument is unused. Prevent that problem by "using" the argument as far
as the compiler is concerned, whilst still returning 0 as before.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7280/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: pm-cps: Select CONFIG_MIPS_CPC
Paul Burton [Wed, 9 Jul 2014 11:48:19 +0000 (12:48 +0100)] 
MIPS: pm-cps: Select CONFIG_MIPS_CPC

The pm-cps code can run without a CPC, although will be limited to using
only the 2 wait idle states. However the code does check for CPC
presence, and in order to work optimally the CPC support is needed. So
select it.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7279/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: pm-cps: Prevent use of mips_cps_* without CPS SMP
Paul Burton [Wed, 9 Jul 2014 11:48:18 +0000 (12:48 +0100)] 
MIPS: pm-cps: Prevent use of mips_cps_* without CPS SMP

These symbols will not be defined when CONFIG_MIPS_CPS=n, but although
the CPS_PM_POWER_GATED state will never be used in that case the
compiler doesn't have enough information to figure that out. Add checks
which evaluate to a constant false for CONFIG_MIPS_CPS=n cases in order
to help the compiler out & eliminate the symbol references.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7278/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM47XX: add Microsoft MN-700 and Asus WL500G
Hauke Mehrtens [Mon, 28 Jul 2014 22:12:09 +0000 (00:12 +0200)] 
MIPS: BCM47XX: add Microsoft MN-700 and Asus WL500G

This patch adds detection for the Microsoft MN-700 and the Asus WL500G
router. This is based on some old code from OpenWrt.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: zajec5@gmail.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7490/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM47XX: fixup broken MAC addresses in nvram
Hauke Mehrtens [Mon, 28 Jul 2014 22:08:01 +0000 (00:08 +0200)] 
MIPS: BCM47XX: fixup broken MAC addresses in nvram

The address prefix 00:90:4C is used by Broadcom in their initial
configuration. When a mac address with the prefix 00:90:4C is used all
devices from the same series are sharing the same mac address. To
prevent mac address collisions we replace them with a mac address based
on the base address. To generate such addresses we take the main mac
address from et0macaddr and increase it by two for the first wifi
device and by 3 for the second one. This matches the printed mac
address on the device. The main mac address increased by one is used as
wan address by the vendor code.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: zajec5@gmail.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7489/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM47XX: make reboot more relaiable
Hauke Mehrtens [Mon, 28 Jul 2014 21:53:57 +0000 (23:53 +0200)] 
MIPS: BCM47XX: make reboot more relaiable

The reboot on the BCM47XX SoCs is done, by setting the watchdog counter
to 1 and let it trigger a reboot, when it reaches 0. Some devices with
a BCM4705/BCM4785 SoC do not reboot when the counter is set to 1 and
decreased to 0 by the hardware. It looks like it works more reliable
when we set it to 3. As far as I understand the hardware, this should
not make any difference, but I do not have access to any documentation
for this SoC.
It is still not 100% reliable.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: zajec5@gmail.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7488/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: TXx9: Delete an unused variable in tx4927_pcibios_setup
Atsushi Nemoto [Sat, 28 Jun 2014 14:57:13 +0000 (23:57 +0900)] 
MIPS: TXx9: Delete an unused variable in tx4927_pcibios_setup

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7216/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: TXx9: Add __init_refok annotation to quirk_slc90e66_bridge
Atsushi Nemoto [Sat, 28 Jun 2014 14:56:57 +0000 (23:56 +0900)] 
MIPS: TXx9: Add __init_refok annotation to quirk_slc90e66_bridge

This pci fixup routine calls __init functions.
In general pci fixup routine must not call __init functions,
but this pci/isa bridge device is not hotpluggable anyway.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7215/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: TXx9: Fix quirk_slc90e66_ide
Atsushi Nemoto [Sat, 28 Jun 2014 14:56:00 +0000 (23:56 +0900)] 
MIPS: TXx9: Fix quirk_slc90e66_ide

Fix wrong code spotted by -Werror=array-bounds:
arch/mips/txx9/generic/pci.c:334:23: error: array subscript is above array bounds [-Werror=array-bounds]
  pci_write_config_byte(dev, regs[i], dat);

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7214/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: SB1: Check optional compilation flags one by one
Maciej W. Rozycki [Sat, 28 Jun 2014 23:59:35 +0000 (00:59 +0100)] 
MIPS: SB1: Check optional compilation flags one by one

This fixes a regression caused by commit
bb6c0bd3fdb67c8a1fceea1d4700b9ee593309f9 [MIPS: SB1: Fix excessive kernel
warnings.], that makes `-march=r5000' selected for compilation flags
rather than supposed `-march=sb1' with compilers that do not support the
ASE selection flags introduced with that change.

For example GCC 4.1.2 supports `-mips3d'/`-mno-mips3d' (and obviously
`-march=sb1'), however it does not support `-mdmx'/`-mno-mdmx'.  As a
result the whole selection of flags fails and compilation resorts to using
`-march=r5000', meant for really old compilers indeed only.

It is always best to pick the flags individually unless we are absolutely
sure a set of flags was introduced to the toolchain together (`-march=sb1'
and `-mtune=sb1' would be a good example), and this change makes it happen
for CONFIG_CPU_SB1.  Consequently the flags ultimately selected with GCC
4.1.2 are `-march=sb1 -Wa,--trap -mno-mips3d'

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Richard Sandiford <rdsandiford@googlemail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7223/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: asm/bitops.h: Guard CLZ with `.set mips32'
Maciej W. Rozycki [Sat, 28 Jun 2014 23:26:20 +0000 (00:26 +0100)] 
MIPS: asm/bitops.h: Guard CLZ with `.set mips32'

This fixes:

{standard input}: Assembler messages:
{standard input}:145: Error: opcode not supported on this processor: vr5000 (mips4) `clz $2,$2'
{standard input}:920: Error: opcode not supported on this processor: vr5000 (mips4) `clz $7,$9'
{standard input}:1797: Error: opcode not supported on this processor: vr5000 (mips4) `clz $7,$7'
{standard input}:1851: Error: opcode not supported on this processor: vr5000 (mips4) `clz $7,$7'
{standard input}:2831: Error: opcode not supported on this processor: vr5000 (mips4) `clz $7,$7'
{standard input}:4209: Error: opcode not supported on this processor: vr5000 (mips4) `clz $7,$7'
{standard input}:4329: Error: opcode not supported on this processor: vr5000 (mips4) `clz $2,$2'
make[2]: *** [arch/mips/mm/tlbex.o] Error 1

which triggered due to a regression causing the file to be built with
`-march=r5000' rather than `-march=sb1', fixed separately.  Nevertheless
the error should not happen, the other uses of CLZ are appropriately
guarded.  This change copies the arrangement from one of those other
places.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7222/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: c-r4k: Avoid duplicate CPU_74K/CPU_1074K checks
Maciej W. Rozycki [Sat, 28 Jun 2014 22:28:08 +0000 (23:28 +0100)] 
MIPS: c-r4k: Avoid duplicate CPU_74K/CPU_1074K checks

Code in a switch statement in probe_pcache checks the CPU type twice
unnecessarily for processor implementations that have the alias removal
feature reported by the CP0 Config7.AR and Config7.IAR bits.  This change
rewrites the affected fragment avoiding the extraneous check and improving
readability.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7221/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Allow setting affinity for IPIC
Jonas Gorski [Sat, 12 Jul 2014 10:49:42 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Allow setting affinity for IPIC

Wire up the set_affinity call for the internal PIC if booting on
a cpu supporting it.
Affinity is kept to boot cpu as default.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7323/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Use irq_desc as argument for (un)mask
Jonas Gorski [Sat, 12 Jul 2014 10:49:41 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Use irq_desc as argument for (un)mask

In preparation for applying affinity, use the irq descriptor as the
argument for (un)mask.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7317/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Wire up the second cpu's irq line
Jonas Gorski [Sat, 12 Jul 2014 10:49:40 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Wire up the second cpu's irq line

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7322/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Protect irq register accesses
Jonas Gorski [Sat, 12 Jul 2014 10:49:39 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Protect irq register accesses

Since we will have the chance of accessing the registers concurrently,
protect any accesses through a spinlock.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7321/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Add cpu argument to dispatch internal
Jonas Gorski [Sat, 12 Jul 2014 10:49:38 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Add cpu argument to dispatch internal

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7320/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Populate irq_{stat,mask}_addr for second cpu
Jonas Gorski [Sat, 12 Jul 2014 10:49:37 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Populate irq_{stat,mask}_addr for second cpu

Set it to zero if there is no second set.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7319/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Append irq line to irq_{stat,mask}*
Jonas Gorski [Sat, 12 Jul 2014 10:49:36 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Append irq line to irq_{stat,mask}*

The SMP capable irq controllers have two interrupt output pins which are
controlled through separate registers, so make the variables arrays.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7318/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Replace irq dispatch code with a generic version
Jonas Gorski [Sat, 12 Jul 2014 10:49:35 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Replace irq dispatch code with a generic version

The generic version uses a variable length of u32 registers instead of u32/u64.
This allows easier support for "wider" registers without having to rewrite
everything.

This "generic" version is as fast as the old version in the best case
(i == next set bit), and twice as fast in the worst case in 64 bits.

Using a macro was chosen over a (forced) inline version because gcc generated
more compact code with the macro.

The change from (signed) int to unsigned int for i and to_call was intentional
as the value can be only between 0 and (width - 1) anyway, and allowed gcc to
optimise the code a bit further.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7316/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Move bcm63xx_init_irq down
Jonas Gorski [Sat, 12 Jul 2014 10:49:34 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Move bcm63xx_init_irq down

Allows up to drop the prototypes from the top.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7315/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Add width to __dispatch_internal
Jonas Gorski [Sat, 12 Jul 2014 10:49:33 +0000 (12:49 +0200)] 
MIPS: BCM63xx: Add width to __dispatch_internal

Make it follow the same naming convention as the other functions.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7314/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT code for bcmcpu_get_id
Jonas Gorski [Tue, 8 Jul 2014 14:53:24 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT code for bcmcpu_get_id

Use the same pattern as with get_*_cpu_type() to allow the compiler
to remove code for non enabled SoC types.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7273/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT in cpu-feature-overrides
Jonas Gorski [Tue, 8 Jul 2014 14:53:23 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT in cpu-feature-overrides

All three SoCs have in common they have a BMIPS32/BMIPS3300 CPU, so
we can replace this as no SoC with BMIPS4350 support enabled.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7272/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT usage from enet code
Jonas Gorski [Tue, 8 Jul 2014 14:53:22 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT usage from enet code

Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7270/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT from spi code
Jonas Gorski [Tue, 8 Jul 2014 14:53:21 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT from spi code

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7271/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT code from gpio code
Jonas Gorski [Tue, 8 Jul 2014 14:53:20 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT code from gpio code

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7269/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT from reset code
Jonas Gorski [Tue, 8 Jul 2014 14:53:19 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT from reset code

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7268/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT from irq setup code
Jonas Gorski [Tue, 8 Jul 2014 14:53:18 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT from irq setup code

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7267/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Remove !RUNTIME_DETECT code from register sets
Jonas Gorski [Tue, 8 Jul 2014 14:53:17 +0000 (16:53 +0200)] 
MIPS: BCM63xx: Remove !RUNTIME_DETECT code from register sets

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7266/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: BCM63xx: Sync MIPS counters during CPU bringup
Jonas Gorski [Tue, 8 Jul 2014 14:26:13 +0000 (16:26 +0200)] 
MIPS: BCM63xx: Sync MIPS counters during CPU bringup

We are using the mips counters as the clock source, so we need to ensure
they are synced, else e.g. gettimeofday will return different values
depending on which core it was run.

Observed difference was about 8 seconds, causing ~8 seconds ping or time
running backwards for some programs.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7265/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: ralink: Use strlcpy to ensure string is always NUL-terminated.
Rickard Strandqvist [Sat, 26 Jul 2014 13:59:57 +0000 (15:59 +0200)] 
MIPS: ralink: Use strlcpy to ensure string is always NUL-terminated.

Replacing strncpy with strlcpy to avoid strings that lacks null terminate.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Cc: Rob Herring <robh@kernel.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7485/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: remove old clock support
Manuel Lauss [Wed, 23 Jul 2014 14:36:57 +0000 (16:36 +0200)] 
MIPS: Alchemy: remove old clock support

With the clock framework in place, remove unused functions and bits,
and drop the CLK_IGNORE_UNUSED flag, which is now unneeded.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7473/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: au1xmmc: use clk framework
Manuel Lauss [Wed, 23 Jul 2014 14:36:56 +0000 (16:36 +0200)] 
MIPS: Alchemy: au1xmmc: use clk framework

Use the clock framework to get the peripheral clock rate to
correctly set the MMC/SD bus clock divider.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7475/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: au1200fb: use clk framework
Manuel Lauss [Wed, 23 Jul 2014 14:36:55 +0000 (16:36 +0200)] 
MIPS: Alchemy: au1200fb: use clk framework

minimal patch to replace direct clock register hackery with clock
framework calls.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7472/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: au1100fb: use clk framework
Manuel Lauss [Wed, 23 Jul 2014 14:36:54 +0000 (16:36 +0200)] 
MIPS: Alchemy: au1100fb: use clk framework

Use the clock framework to en/disable the clock to the au1100
framebuffer device.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7474/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: irda: use clk framework
Manuel Lauss [Wed, 23 Jul 2014 14:36:53 +0000 (16:36 +0200)] 
MIPS: Alchemy: irda: use clk framework

Test the existence of the irda_clk clock object, use it to en/dis-
able it when date is being transferred.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7470/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: db1x00: use clk framework
Manuel Lauss [Wed, 23 Jul 2014 14:36:52 +0000 (16:36 +0200)] 
MIPS: Alchemy: db1x00: use clk framework

Make use of the clk framework to set up and enable all PSC clocks.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7469/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: pci: use clk framework to enable PCI clock
Manuel Lauss [Wed, 23 Jul 2014 14:36:51 +0000 (16:36 +0200)] 
MIPS: Alchemy: pci: use clk framework to enable PCI clock

Use the clock framework to get at the PCI clock source and enable
it on driver initialization.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7471/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: usb: use clk framework
Manuel Lauss [Wed, 23 Jul 2014 14:36:50 +0000 (16:36 +0200)] 
MIPS: Alchemy: usb: use clk framework

Add use of the common clock framework to set and enable the 48MHz
clock source for the onchip OHCI and UDC blocks.

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

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7467/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: platform: use clk framework for uarts
Manuel Lauss [Wed, 23 Jul 2014 14:36:49 +0000 (16:36 +0200)] 
MIPS: Alchemy: platform: use clk framework for uarts

Use the clock framework to get the rate of the peripheral clock.
Remove the now obsolete get_uart_baud_base function.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7468/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: clock framework integration of onchip clocks
Manuel Lauss [Wed, 23 Jul 2014 14:36:48 +0000 (16:36 +0200)] 
MIPS: Alchemy: clock framework integration of onchip clocks

This patch introduces common clock framework integration for all
configurable on-chip clocks on Alchemy chips:

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

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

CLK_IGNORE_DISABLED will be removed once all drivers have been
converted.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7466/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: remove au_read/write/sync
Manuel Lauss [Wed, 23 Jul 2014 14:36:26 +0000 (16:36 +0200)] 
MIPS: Alchemy: remove au_read/write/sync

replace au_read/write/sync with __raw_read/write and wmb.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7465/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: add helpers to access static memory ctrl registers.
Manuel Lauss [Wed, 23 Jul 2014 14:36:25 +0000 (16:36 +0200)] 
MIPS: Alchemy: add helpers to access static memory ctrl registers.

This patch changes the static memory controller registers to offsets
from base, prefixes them with AU1000_ to avoid silent failures due to
changed addresses and introduces helpers to access them.

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

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7463/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: introduce helpers to access SYS register block.
Manuel Lauss [Wed, 23 Jul 2014 14:36:24 +0000 (16:36 +0200)] 
MIPS: Alchemy: introduce helpers to access SYS register block.

This patch changes all absolute SYS_XY registers to offsets from the
SYS block base, prefixes them with AU1000 to avoid silent failures due
to changed addresses, and introduces helper functions to read/write
them.

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

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7464/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: au1000.h move C-code after register definitions.
Manuel Lauss [Wed, 23 Jul 2014 14:36:23 +0000 (16:36 +0200)] 
MIPS: Alchemy: au1000.h move C-code after register definitions.

Move the C-code after all macros:  A follow-on patch which
introduces helpers to access the SYS_* registers needs this to build.

Just code shuffling, no functional changes.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7461/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: move ethernet registers to ethernet driver
Manuel Lauss [Wed, 23 Jul 2014 14:36:22 +0000 (16:36 +0200)] 
MIPS: Alchemy: move ethernet registers to ethernet driver

Move the register offsets and bit descriptions from the au1000.h header
to their only user, the au1000_eth.c driver.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: netdev@vger.kernel.org
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7460/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: Alchemy: au1000.h: remove unused register definitions
Manuel Lauss [Wed, 23 Jul 2014 14:36:21 +0000 (16:36 +0200)] 
MIPS: Alchemy: au1000.h: remove unused register definitions

Remove the unused SSI I2S and AC97C register definitions.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7462/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoMIPS: RB532: Replace parse_mac_addr() with mac_pton().
Daniel Walter [Tue, 24 Jun 2014 11:14:26 +0000 (12:14 +0100)] 
MIPS: RB532: Replace parse_mac_addr() with mac_pton().

Signed-off-by: Daniel Walter <dwalter@google.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7150/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
10 years agoLinux 3.16-rc5
Linus Torvalds [Sun, 13 Jul 2014 21:04:33 +0000 (14:04 -0700)] 
Linux 3.16-rc5

10 years agoMerge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 13 Jul 2014 20:14:55 +0000 (13:14 -0700)] 
Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 bugfixes from Ted Ts'o:
 "More bug fixes for ext4 -- most importantly, a fix for a bug
  introduced in 3.15 that can end up triggering a file system corruption
  error after a journal replay.

  It shouldn't lead to any actual data corruption, but it is scary and
  can force file systems to be remounted read-only, etc"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix potential null pointer dereference in ext4_free_inode
  ext4: fix a potential deadlock in __ext4_es_shrink()
  ext4: revert commit which was causing fs corruption after journal replays
  ext4: disable synchronous transaction batching if max_batch_time==0
  ext4: clarify ext4_error message in ext4_mb_generate_buddy_error()
  ext4: clarify error count warning messages
  ext4: fix unjournalled bg descriptor while initializing inode bitmap

10 years agoMerge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux
Linus Torvalds [Sun, 13 Jul 2014 19:21:04 +0000 (12:21 -0700)] 
Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clock driver fixes from Mike Turquette:
 "This batch of fixes is for a handful of clock drivers from Allwinner,
  Samsung, ST & TI.  Most of them are of the "this hardware won't work
  without this fix" variety, including patches that fix platforms that
  did not boot under certain configurations.  Other fixes are the result
  of changes to the clock core introduced in 3.15 that had subtle
  impacts on the clock drivers.

  There are no fixes to the clock framework core in this pull request"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
  clk: spear3xx: Set proper clock parent of uart1/2
  clk: spear3xx: Use proper control register offset
  clk: qcom: HDMI source sel is 3 not 2
  clk: sunxi: fix devm_ioremap_resource error detection code
  clk: s2mps11: Fix double free corruption during driver unbind
  clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
  clk: exynos5420: Remove aclk66_peric from the clock tree description
  clk/exynos5250: fix bit number for tv sysmmu clock
  clk: s3c64xx: Hookup SPI clocks correctly
  clk: samsung: exynos4: Remove SRC_MASK_ISP gates
  clk: samsung: add more aliases for s3c24xx
  clk: samsung: fix several typos to fix boot on s3c2410
  clk: ti: set CLK_SET_RATE_NO_REPARENT for ti,mux-clock
  clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
  clk: ti: dra7: return error code in failure case
  clk: ti: apll: not allocating enough data

10 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sun, 13 Jul 2014 19:10:18 +0000 (12:10 -0700)] 
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "This week's arm-soc fixes:

   - Another set of OMAP fixes
     * Clock fixes
     * Restart handling
     * PHY regulators
     * SATA hwmod data for DRA7
     + Some trivial fixes and removal of a bit of dead code
   - Exynos fixes
     * A bunch of clock fixes
     * Some SMP fixes
     * Exynos multi-core timer: register as clocksource and fix ftrace.
     + a few other minor fixes

  There's also a couple more patches, and at91 fix for USB caused by
  common clock conversion, and more MAINTAINERS entries for shmobile.

  We're definitely switching to only regression fixes from here on out,
  we've been a little less strict than usual up until now"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
  ARM: at91: at91sam9x5: add clocks for usb device
  ARM: EXYNOS: Register cpuidle device only on exynos4210 and 5250
  ARM: dts: Add clock property for mfc_pd in exynos5420
  clk: exynos5420: Add IDs for clocks used in PD mfc
  ARM: EXYNOS: Add support for clock handling in power domain
  ARM: OMAP2+: Remove non working OMAP HDMI audio initialization
  ARM: imx: fix shared gate clock
  ARM: dts: Update the parent for Audss clocks in Exynos5420
  ARM: EXYNOS: Update secondary boot addr for secure mode
  ARM: dts: Fix TI CPSW Phy mode selection on IGEP COM AQUILA.
  ARM: dts: am335x-evmsk: Enable the McASP FIFO for audio
  ARM: dts: am335x-evm: Enable the McASP FIFO for audio
  ARM: OMAP2+: Make GPMC skip disabled devices
  ARM: OMAP2+: create dsp device only on OMAP3 SoCs
  ARM: dts: dra7-evm: Make VDDA_1V8_PHY supply always on
  ARM: DRA7/AM43XX: fix header definition for omap44xx_restart
  ARM: OMAP2+: clock/dpll: fix _dpll_test_fint arithmetics overflow
  ARM: DRA7: hwmod: Add SYSCONFIG for usb_otg_ss
  ARM: DRA7: hwmod: Fixup SATA hwmod
  ARM: OMAP3: PRM/CM: Add back macros used by TI DSP/Bridge driver
  ...

10 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Sun, 13 Jul 2014 19:09:18 +0000 (12:09 -0700)] 
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Another round of fixes for ARM:
   - a set of kprobes fixes from Jon Medhurst
   - fix the revision checking for the L2 cache which wasn't noticed to
     have been broken"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: l2c: fix revision checking
  ARM: kprobes: Fix test code compilation errors for ARMv4 targets
  ARM: kprobes: Disallow instructions with PC and register specified shift
  ARM: kprobes: Prevent known test failures stopping other tests running

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux...
Linus Torvalds [Sun, 13 Jul 2014 19:04:06 +0000 (12:04 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k

Pull m68k fixes from Geert Uytterhoeven:
 "Summary:
  - Fix for a boot regression introduced in v3.16-rc1,
  - Fix for a build issue in -next"

Christoph Hellwig questioned why mach_random_get_entropy should be
exported to modules, and Geert explains that random_get_entropy() is
called by at least the crypto layer and ends up using it on m68k.  On
most other architectures it just uses get_cycles() (which is typically
inlined and doesn't need exporting),

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Export mach_random_get_entropy to modules
  m68k: Fix boot regression on machines with RAM at non-zero

10 years agoMerge branch 'parisc-3.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sun, 13 Jul 2014 19:02:05 +0000 (12:02 -0700)] 
Merge branch 'parisc-3.16-5' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc fixes from Helge Deller:
 "The major patch in here is one which fixes the fanotify_mark() syscall
  in the compat layer of the 64bit parisc kernel.  It went unnoticed so
  long, because the calling syntax when using a 64bit parameter in a
  32bit syscall is quite complex and even worse, it may be even
  different if you call syscall() or the glibc wrapper.  This patch
  makes the kernel accept the calling convention when called by the
  glibc wrapper.

  The other two patches are trivial and remove unused headers, #includes
  and adds the serial ports of the fastest C8000 workstation to the
  parisc-kernel internal hardware database"

* 'parisc-3.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: drop unused defines and header includes
  parisc: fix fanotify_mark() syscall on 32bit compat kernel
  parisc: add serial ports of C8000/1GHz machine to hardware database

10 years agoclk: spear3xx: Set proper clock parent of uart1/2
Thomas Gleixner [Thu, 19 Jun 2014 21:52:24 +0000 (21:52 +0000)] 
clk: spear3xx: Set proper clock parent of uart1/2

The uarts only work when the parent is ras_ahb_clk. The stale 3.5
based ST tree does this in the board file.

Add it to the clk init function. Not pretty, but the mess there is
amazing anyway.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
10 years agoclk: spear3xx: Use proper control register offset
Thomas Gleixner [Thu, 19 Jun 2014 21:52:23 +0000 (21:52 +0000)] 
clk: spear3xx: Use proper control register offset

The control register is at offset 0x10, not 0x0. This is wreckaged
since commit 5df33a62c (SPEAr: Switch to common clock framework).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
10 years agoparisc: drop unused defines and header includes
Helge Deller [Thu, 10 Jul 2014 16:08:11 +0000 (18:08 +0200)] 
parisc: drop unused defines and header includes

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 3.13+
10 years agoparisc: fix fanotify_mark() syscall on 32bit compat kernel
Helge Deller [Thu, 10 Jul 2014 16:07:17 +0000 (18:07 +0200)] 
parisc: fix fanotify_mark() syscall on 32bit compat kernel

On parisc we can not use the existing compat implementation for fanotify_mark()
because for the 64bit mask parameter the higher and lower 32bits are ordered
differently than what the compat function expects from big endian
architectures.

Specifically:
It finally turned out, that on hppa we end up with different assignments
of parameters to kernel arguments depending on if we call the glibc
wrapper function
 int fanotify_mark (int __fanotify_fd, unsigned int __flags,
                    uint64_t __mask, int __dfd, const char *__pathname);
or directly calling the syscall manually
 syscall(__NR_fanotify_mark, ...)

Reason is, that the syscall() function is implemented as C-function and
because we now have the sysno as first parameter in front of the other
parameters the compiler will unexpectedly add an empty paramenter in
front of the u64 value to ensure the correct calling alignment for 64bit
values.
This means, on hppa you can't simply use syscall() to call the kernel
fanotify_mark() function directly, but you have to use the glibc
function instead.

This patch fixes the kernel in the hppa-arch specifc coding to adjust
the parameters in a way as if userspace calls the glibc wrapper function
fanotify_mark().

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 3.13+
10 years agoparisc: add serial ports of C8000/1GHz machine to hardware database
Helge Deller [Sat, 28 Jun 2014 15:44:51 +0000 (17:44 +0200)] 
parisc: add serial ports of C8000/1GHz machine to hardware database

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 3.13+
10 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 13 Jul 2014 05:24:50 +0000 (22:24 -0700)] 
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine fixes from Vinod Koul:
 "We have two small fixes.  First one from Daniel to handle 0-length
  packets for usb cppi dma.  Second by Russell for imx-sdam cyclic
  residue reporting"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  Update imx-sdma cyclic handling to report residue
  dma: cppi41: handle 0-length packets

10 years agoMerge tag 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene...
Olof Johansson [Sun, 13 Jul 2014 04:19:21 +0000 (21:19 -0700)] 
Merge tag 'samsung-fixes-3' of git://git./linux/kernel/git/kgene/linux-samsung into fixes

Merge "Samsung fixes-3 for 3.16" from Kukjin Kim:

Samsung fixes-3 for v3.16
- update the parent for Auudss clock because kernel will be hang
  during late boot if the parent clock is disabled in bootloader.
- enable clk handing in power domain because while power domain
  on/off, its regarding clock source will be reset and it causes
  a problem so need to handle it.
- add mux clocks to be used by power domain for exynos5420-mfc
  during power domain on/off and property in device tree also.
- register cpuidle only for exynos4210 and exynos5250 because a
  system failure will be happened on other exynos SoCs.

* tag 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Register cpuidle device only on exynos4210 and 5250
  ARM: dts: Add clock property for mfc_pd in exynos5420
  clk: exynos5420: Add IDs for clocks used in PD mfc
  ARM: EXYNOS: Add support for clock handling in power domain
  ARM: dts: Update the parent for Audss clocks in Exynos5420

Signed-off-by: Olof Johansson <olof@lixom.net>
10 years agoMerge tag 'usb-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 12 Jul 2014 21:13:10 +0000 (14:13 -0700)] 
Merge tag 'usb-3.16-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes, PHY driver fixes (they ended up in this
  tree for lack of somewhere else to put them), and some new USB device
  ids"

* tag 'usb-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  phy: omap-usb2: Balance pm_runtime_enable() on probe failure and remove
  phy: core: Fix error path in phy_create()
  drivers: phy: phy-samsung-usb2.c: Add missing MODULE_DEVICE_TABLE
  phy: omap-usb2: fix devm_ioremap_resource error detection code
  phy: sun4i: depend on RESET_CONTROLLER
  USB: serial: ftdi_sio: Add Infineon Triboard
  USB: ftdi_sio: Add extra PID.
  usb: option: Add ID for Telewell TW-LTE 4G v2
  USB: cp210x: add support for Corsair usb dongle

10 years agoMerge tag 'tty-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sat, 12 Jul 2014 21:12:35 +0000 (14:12 -0700)] 
Merge tag 'tty-3.16-rc5' of git://git./linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some small serial fixes that resolve some reported problems
  that started in 3.15 with some serial drivers.

  And there's a new dt binding for a serial driver, which was all that
  was needed for the renesas serial driver"

* tag 'tty-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: sh-sci: Add device tree support for r8a7{778,740,3a4} and sh73a0
  serial: imx: Fix build breakage
  serial: arc_uart: Use uart_circ_empty() for open-coded comparison
  serial: Test for no tx data on tx restart

10 years agoMerge tag 'char-misc-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sat, 12 Jul 2014 21:12:04 +0000 (14:12 -0700)] 
Merge tag 'char-misc-3.16-rc5' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are two hyperv driver fixes, and one i8k driver fix for 3.16"

* tag 'char-misc-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  i8k: Fix non-SMP operation
  Drivers: hv: util: Fix a bug in the KVP code
  Drivers: hv: vmbus: Fix a bug in the channel callback dispatch code

10 years agoMerge tag 'staging-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 12 Jul 2014 21:11:09 +0000 (14:11 -0700)] 
Merge tag 'staging-3.16-rc5' of git://git./linux/kernel/git/gregkh/staging

Pull IIO fixes from Greg KH:
 "Here are some IIO driver fixes for 3.16-rc5.  Nothing major, just
  resolves some minor issues that have been reported"

* tag 'staging-3.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio: ti_am335x_adc: Fix: Use same step id at FIFOs both ends
  iio:tcs3472: Check for buffer enabled and locking
  iio: hid-sensor-prox: Fix return values
  iio: hid-sensor-gyro-3d: Fix return values
  iio: hid-sensor-als: Fix return values
  iio: hid-sensor-magn-3d: Fix return values
  iio: hid-sensor-accel-3d: Fix return values
  iio: hid-sensor-press: Fix return values

10 years agoext4: fix potential null pointer dereference in ext4_free_inode
Namjae Jeon [Sat, 12 Jul 2014 20:11:42 +0000 (16:11 -0400)] 
ext4: fix potential null pointer dereference in ext4_free_inode

Fix potential null pointer dereferencing problem caused by e43bb4e612
("ext4: decrement free clusters/inodes counters when block group declared bad")

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
10 years agoext4: fix a potential deadlock in __ext4_es_shrink()
Theodore Ts'o [Sat, 12 Jul 2014 19:32:24 +0000 (15:32 -0400)] 
ext4: fix a potential deadlock in __ext4_es_shrink()

This fixes the following lockdep complaint:

[ INFO: possible circular locking dependency detected ]
3.16.0-rc2-mm1+ #7 Tainted: G           O
-------------------------------------------------------
kworker/u24:0/4356 is trying to acquire lock:
 (&(&sbi->s_es_lru_lock)->rlock){+.+.-.}, at: [<ffffffff81285fff>] __ext4_es_shrink+0x4f/0x2e0

but task is already holding lock:
 (&ei->i_es_lock){++++-.}, at: [<ffffffff81286961>] ext4_es_insert_extent+0x71/0x180

which lock already depends on the new lock.

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ei->i_es_lock);
                               lock(&(&sbi->s_es_lru_lock)->rlock);
                               lock(&ei->i_es_lock);
  lock(&(&sbi->s_es_lru_lock)->rlock);

 *** DEADLOCK ***

6 locks held by kworker/u24:0/4356:
 #0:  ("writeback"){.+.+.+}, at: [<ffffffff81071d00>] process_one_work+0x180/0x560
 #1:  ((&(&wb->dwork)->work)){+.+.+.}, at: [<ffffffff81071d00>] process_one_work+0x180/0x560
 #2:  (&type->s_umount_key#22){++++++}, at: [<ffffffff811a9c74>] grab_super_passive+0x44/0x90
 #3:  (jbd2_handle){+.+...}, at: [<ffffffff812979f9>] start_this_handle+0x189/0x5f0
 #4:  (&ei->i_data_sem){++++..}, at: [<ffffffff81247062>] ext4_map_blocks+0x132/0x550
 #5:  (&ei->i_es_lock){++++-.}, at: [<ffffffff81286961>] ext4_es_insert_extent+0x71/0x180

stack backtrace:
CPU: 0 PID: 4356 Comm: kworker/u24:0 Tainted: G           O   3.16.0-rc2-mm1+ #7
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Workqueue: writeback bdi_writeback_workfn (flush-253:0)
 ffffffff8213dce0 ffff880014b07538 ffffffff815df0bb 0000000000000007
 ffffffff8213e040 ffff880014b07588 ffffffff815db3dd ffff880014b07568
 ffff880014b07610 ffff88003b868930 ffff88003b868908 ffff88003b868930
Call Trace:
 [<ffffffff815df0bb>] dump_stack+0x4e/0x68
 [<ffffffff815db3dd>] print_circular_bug+0x1fb/0x20c
 [<ffffffff810a7a3e>] __lock_acquire+0x163e/0x1d00
 [<ffffffff815e89dc>] ? retint_restore_args+0xe/0xe
 [<ffffffff815ddc7b>] ? __slab_alloc+0x4a8/0x4ce
 [<ffffffff81285fff>] ? __ext4_es_shrink+0x4f/0x2e0
 [<ffffffff810a8707>] lock_acquire+0x87/0x120
 [<ffffffff81285fff>] ? __ext4_es_shrink+0x4f/0x2e0
 [<ffffffff8128592d>] ? ext4_es_free_extent+0x5d/0x70
 [<ffffffff815e6f09>] _raw_spin_lock+0x39/0x50
 [<ffffffff81285fff>] ? __ext4_es_shrink+0x4f/0x2e0
 [<ffffffff8119760b>] ? kmem_cache_alloc+0x18b/0x1a0
 [<ffffffff81285fff>] __ext4_es_shrink+0x4f/0x2e0
 [<ffffffff812869b8>] ext4_es_insert_extent+0xc8/0x180
 [<ffffffff812470f4>] ext4_map_blocks+0x1c4/0x550
 [<ffffffff8124c4c4>] ext4_writepages+0x6d4/0xd00
...

Reported-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reported-by: Minchan Kim <minchan@kernel.org>
Cc: stable@vger.kernel.org
Cc: Zheng Liu <gnehzuil.liu@gmail.com>
10 years agoDocumenation/laptops: rename and update hpfall.c
Pali Rohár [Sat, 12 Jul 2014 16:56:22 +0000 (09:56 -0700)] 
Documenation/laptops: rename and update hpfall.c

Dell kernel driver dell-smo8800 provides same freefall interface as hp_accel so
program hpfall.c works also on Dell laptops. So rename it to freefall.c.

Dell driver does not provide hp::hddprotect led so make sure that freefall.c
works also if hp::hddprotect does not exist in sysfs.

Additionally write info to syslog.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Cc: Sonal Santan <sonal.santan@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoDocBook: fix various typos
Masanari Iida [Sat, 12 Jul 2014 16:55:28 +0000 (09:55 -0700)] 
DocBook: fix various typos

This patch fixed spelling typo in various template files
within Documentation/Docbook.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoDocBook: fix mtdnand typos
Masanari Iida [Sat, 12 Jul 2014 16:55:15 +0000 (09:55 -0700)] 
DocBook: fix mtdnand typos

This patch fixed spelling typo found in DocBook/mtdnand.tmpl.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoscripts/kernel-doc: handle object-like macros
Horia Geanta [Sat, 12 Jul 2014 16:55:03 +0000 (09:55 -0700)] 
scripts/kernel-doc: handle object-like macros

Object-like macros are different than function-like macros:
https://gcc.gnu.org/onlinedocs/cpp/Object-like-Macros.html
https://gcc.gnu.org/onlinedocs/cpp/Function-like-Macros.html

They are not parsed correctly, generating invalid intermediate
files (xmls) for cases like:
    #define BIT_MASK    (0xFF << BIT_SHIFT)
where "OxFF <<" is considered to be parameter type.

When parsing, we can differentiate beween these two types of macros by
checking whether there is at least one whitespace b/w "#define" and
first opening parenthesis.

Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoDocumentation/Changes: clean up mcelog paragraph
Paul Bolle [Sat, 12 Jul 2014 16:54:52 +0000 (09:54 -0700)] 
Documentation/Changes: clean up mcelog paragraph

The paragraph on mcelog currently describes kernel v2.6.31. In that
kernel the mce code (for i386, that is) was in transition. Ever since
v2.6.32 the situation is much simpler (eg, mcelog is now needed to
process events on almost all x86 machines, i386 and x86-64). Since this
"document is designed to provide a list of the minimum levels of
software necessary to run the 3.0 kernels" let's just describe that
situation.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
10 years agoARM: at91: at91sam9x5: add clocks for usb device
Bo Shen [Fri, 11 Jul 2014 16:34:56 +0000 (18:34 +0200)] 
ARM: at91: at91sam9x5: add clocks for usb device

Add clocks for usb device, or else switch to CCF, the gadget
won't work.

Reported-by: Jiri Prchal <jiri.prchal@aksignal.cz>
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Jiri Prchal <jiri.prchal@aksignal.cz>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
10 years agoMerge branch 'kprobes-test-fixes' of git://git.linaro.org/people/tixy/kernel into...
Russell King [Sat, 12 Jul 2014 12:59:24 +0000 (13:59 +0100)] 
Merge branch 'kprobes-test-fixes' of git://git.linaro.org/people/tixy/kernel into fixes

10 years agophy: omap-usb2: Balance pm_runtime_enable() on probe failure and remove
Roger Quadros [Thu, 10 Jul 2014 06:25:03 +0000 (11:55 +0530)] 
phy: omap-usb2: Balance pm_runtime_enable() on probe failure and remove

If probe fails then we need to call pm_runtime_disable() to balance
out the previous pm_runtime_enable() call. Else it will cause
unbalanced pm_runtime_enable() call in the succeding probe call.

This anomaly was observed when the call to devm_phy_create() failed
with -EPROBE_DEFER.

Balance out the pm_runtime_enable() call in .remove() as well.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agophy: core: Fix error path in phy_create()
Roger Quadros [Thu, 10 Jul 2014 06:25:02 +0000 (11:55 +0530)] 
phy: core: Fix error path in phy_create()

Prevent resources from being freed twice in case device_add() call
fails within phy_create(). Also use ida_simple_remove() instead of
ida_remove() as we had used ida_simple_get() to allocate the ida.

Cc: 3.13+ <stable@vger.kernel.org> # 3.13+
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agodrivers: phy: phy-samsung-usb2.c: Add missing MODULE_DEVICE_TABLE
Sjoerd Simons [Thu, 10 Jul 2014 06:25:01 +0000 (11:55 +0530)] 
drivers: phy: phy-samsung-usb2.c: Add missing MODULE_DEVICE_TABLE

Allow phy-exynos-usb2 to be autoloaded based on devicetree information.
Tested on Odroid X2 with its USB subsystem build as modules.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agophy: omap-usb2: fix devm_ioremap_resource error detection code
Himangi Saraogi [Thu, 10 Jul 2014 06:25:00 +0000 (11:55 +0530)] 
phy: omap-usb2: fix devm_ioremap_resource error detection code

devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure.

A simplified version of the semantic match that finds this problem is as
follows:

// <smpl>
@@
expression e,e1;
statement S;
@@

*e = devm_ioremap_resource(...);
if (!e1) S

// </smpl>

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agophy: sun4i: depend on RESET_CONTROLLER
Maxime Ripard [Thu, 10 Jul 2014 06:24:59 +0000 (11:54 +0530)] 
phy: sun4i: depend on RESET_CONTROLLER

The driver depend on the reset framework in a mandatory way. Make sure
reset_control_get is defined by adding this dependency in Kconfig

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agoUSB: serial: ftdi_sio: Add Infineon Triboard
Michal Sojka [Thu, 10 Jul 2014 12:00:34 +0000 (14:00 +0200)] 
USB: serial: ftdi_sio: Add Infineon Triboard

This adds support for Infineon TriBoard TC1798 [1]. Only interface 1
is used as serial line (see [2], Figure 8-6).

[1] http://www.infineon.com/cms/de/product/microcontroller/development-tools-software-and-kits/tricore-tm-development-tools-software-and-kits/starterkits-and-evaluation-boards/starter-kit-tc1798/channel.html?channel=db3a304333b8a7ca0133cfa3d73e4268
[2] http://www.infineon.com/dgdl/TriBoardManual-TC1798-V10.pdf?folderId=db3a304412b407950112b409ae7c0343&fileId=db3a304333b8a7ca0133cfae99fe426a

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Cc: Johan Hovold <johan@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agoserial: sh-sci: Add device tree support for r8a7{778,740,3a4} and sh73a0
Simon Horman [Fri, 11 Jul 2014 09:11:08 +0000 (11:11 +0200)] 
serial: sh-sci: Add device tree support for r8a7{778,740,3a4} and sh73a0

Simply document new compat strings.
There appears to be no need for a driver updates.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agoserial: imx: Fix build breakage
Peter Hurley [Fri, 11 Jul 2014 02:36:46 +0000 (22:36 -0400)] 
serial: imx: Fix build breakage

Fix breakage introduced by
commit c557d392fbf5badd693ea1946a4317c87a26a716,
'serial: Test for no tx data on tx restart'.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 12 Jul 2014 00:10:05 +0000 (17:10 -0700)] 
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Peter Anvin:
 "A couple of further build fixes for the VDSO code.

  This is turning into a bit of a headache, and Andy has already come up
  with a more ultimate cleanup, but most likely that is 3.17 material"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86-32, vdso: Fix vDSO build error due to missing align_vdso_addr()
  x86-64, vdso: Fix vDSO build breakage due to empty .rela.dyn

10 years agoMerge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Fri, 11 Jul 2014 22:10:04 +0000 (15:10 -0700)] 
Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux

Pull nfsd bugfix from Bruce Fields:
 "Another xdr encoding regression that may cause incorrect encoding on
  failures of certain readdirs"

* 'for-3.16' of git://linux-nfs.org/~bfields/linux:
  nfsd: Fix bad reserving space for encoding rdattr_error

10 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 11 Jul 2014 22:09:15 +0000 (15:09 -0700)] 
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
 "ARM64 implementation of TASK_SIZE_OF and exporting two functions to
  modules"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: implement TASK_SIZE_OF
  arm64: export __cpu_{clear,copy}_user_page functions

10 years agoext4: revert commit which was causing fs corruption after journal replays
Theodore Ts'o [Fri, 11 Jul 2014 17:55:40 +0000 (13:55 -0400)] 
ext4: revert commit which was causing fs corruption after journal replays

Commit 007649375f6af2 ("ext4: initialize multi-block allocator before
checking block descriptors") causes the block group descriptor's count
of the number of free blocks to become inconsistent with the number of
free blocks in the allocation bitmap.  This is a harmless form of fs
corruption, but it causes the kernel to potentially remount the file
system read-only, or to panic, depending on the file systems's error
behavior.

Thanks to Eric Whitney for his tireless work to reproduce and to find
the guilty commit.

Fixes: 007649375f6af2 ("ext4: initialize multi-block allocator before checking block descriptors"
Cc: stable@vger.kernel.org # 3.15
Reported-by: David Jander <david@protonic.nl>
Reported-by: Matteo Croce <technoboy85@gmail.com>
Tested-by: Eric Whitney <enwlinux@gmail.com>
Suggested-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
10 years agoMerge tag 'dm-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Fri, 11 Jul 2014 16:33:36 +0000 (09:33 -0700)] 
Merge tag 'dm-3.16-fixes' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Fix DM multipath IO hang regression from 3.15 due to logic bug in
   multipath_busy.  This impacted cable-pull testing and also the
   ability to boot with IPR SCSI on a POWER8 box.

 - Fix possible deadlock with deferred device removal by using a new
   dedicated workqueue rather than using the system workqueue.

 - Fix NULL pointer crash due to race condition in dm-io's wake up code
   for sync_io by using a completion.

 - Update dm-crypt and dm-zero author name following legal name change;
   this is important to Jana so I didn't see any reason to hold it back.

* tag 'dm-3.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm mpath: fix IO hang due to logic bug in multipath_busy
  dm io: fix a race condition in the wake up code for sync_io
  dm crypt, dm zero: update author name following legal name change
  dm: allocate a special workqueue for deferred device removal

10 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Fri, 11 Jul 2014 16:32:39 +0000 (09:32 -0700)] 
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

Pull powerpc fixes from Ben Herrenschmidt:
 "Here are a few more powerpc fixes for 3.16

  There's a small series of 3 patches that fix saving/restoring MMUCR2
  when using KVM without which perf goes completely bonkers in the host
  system.  Another perf fix from Anton that's been rotting away in
  patchwork due to my poor eyesight, a couple of compile fixes, a little
  addition to the WSP removal by Michael (removing a bit more dead
  stuff) and a fix for an embarassing regression with our soft irq
  masking"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/perf: Never program book3s PMCs with values >= 0x80000000
  powerpc: Disable RELOCATABLE for COMPILE_TEST with PPC64
  powerpc/perf: Clear MMCR2 when enabling PMU
  powerpc/perf: Add PPMU_ARCH_207S define
  powerpc/kvm: Remove redundant save of SIER AND MMCR2
  powerpc/powernv: Check for IRQHAPPENED before sleeping
  powerpc: Clean up MMU_FTRS_A2 and MMU_FTR_TYPE_3E
  powerpc/cell: Fix compilation with CONFIG_COREDUMP=n

10 years agom68k: Export mach_random_get_entropy to modules
Geert Uytterhoeven [Thu, 10 Jul 2014 16:03:17 +0000 (18:03 +0200)] 
m68k: Export mach_random_get_entropy to modules

When a module calls random_get_entropy():

    ERROR: "mach_random_get_entropy" [crypto/drbg.ko] undefined!
    make[1]: *** [__modpost] Error 1

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
10 years agopowerpc/perf: Never program book3s PMCs with values >= 0x80000000
Anton Blanchard [Wed, 28 May 2014 22:15:38 +0000 (08:15 +1000)] 
powerpc/perf: Never program book3s PMCs with values >= 0x80000000

We are seeing a lot of PMU warnings on POWER8:

    Can't find PMC that caused IRQ

Looking closer, the active PMC is 0 at this point and we took a PMU
exception on the transition from negative to 0. Some versions of POWER8
have an issue where they edge detect and not level detect PMC overflows.

A number of places program the PMC with (0x80000000 - period_left),
where period_left can be negative. We can either fix all of these or
just ensure that period_left is always >= 1.

This patch takes the second option.

Cc: <stable@vger.kernel.org>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
10 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 11 Jul 2014 03:37:33 +0000 (20:37 -0700)] 
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Nothing too scary, we have one outstanding i915 regression but Daniel
  has promised the fix as soon as he's finished testing it a bit.

  Fixes for the main x86 drivers:
   - radeon: dpm fixes, displayport regression fix
   - i915: quirks for backlight regression, edp reboot fix, valleyview
     black screen fixes
   - nouveau: display port regression fixes, fix for memory reclocking"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon/dpm: Reenabling SS on Cayman
  drm/radeon: fix typo in ci_stop_dpm()
  drm/radeon: fix typo in golden register setup on evergreen
  drm/radeon: only print meaningful VM faults
  drm/radeon/dp: return -EIO for flags not zero case
  drm/i915/vlv: T12 eDP panel timing enforcement during reboot
  drm/i915: Only unbind vgacon, not other console drivers
  drm/i915: Don't clobber the GTT when it's within stolen memory
  drm/i915/vlv: Update the DSI ULPS entry/exit sequence
  drm/i915/vlv: DPI FIFO empty check is not needed
  drm/i915: Toshiba CB35 has a controllable backlight
  drm/i915: Acer C720 and C720P have controllable backlights
  drm/i915: quirk asserts controllable backlight presence, overriding VBT
  drm/nouveau/ram: fix test for gpio presence
  drm/nouveau/dp: workaround broken display
  drm/nouveau/dp: fix required link bandwidth calculations
  drm/nouveau/kms: restore fbcon after display has been resumed
  drm/nv50-/kms: pass a non-zero value for head to sor dpms methods
  drm/nouveau/fb: Prevent inlining of ramfuc_reg
  drm/gk104/ram: bash mpll bit 31 on

10 years agopowerpc: Disable RELOCATABLE for COMPILE_TEST with PPC64
Guenter Roeck [Mon, 30 Jun 2014 18:45:30 +0000 (11:45 -0700)] 
powerpc: Disable RELOCATABLE for COMPILE_TEST with PPC64

powerpc:allmodconfig has been failing for some time with the following
error.

arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1312: Error: attempt to move .org backwards
make[1]: *** [arch/powerpc/kernel/head_64.o] Error 1

A number of attempts to fix the problem by moving around code have been
unsuccessful and resulted in failed builds for some configurations and
the discovery of toolchain bugs.

Fix the problem by disabling RELOCATABLE for COMPILE_TEST builds instead.
While this is less than perfect, it avoids substantial code changes
which would otherwise be necessary just to make COMPILE_TEST builds
happy and might have undesired side effects.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
10 years agopowerpc/perf: Clear MMCR2 when enabling PMU
Joel Stanley [Tue, 8 Jul 2014 06:38:22 +0000 (16:08 +0930)] 
powerpc/perf: Clear MMCR2 when enabling PMU

On POWER8 when switching to a KVM guest we set bits in MMCR2 to freeze
the PMU counters. Aside from on boot they are then never reset,
resulting in stuck perf counters for any user in the guest or host.

We now set MMCR2 to 0 whenever enabling the PMU, which provides a sane
state for perf to use the PMU counters under either the guest or the
host.

This was manifesting as a bug with ppc64_cpu --frequency:

    $ sudo ppc64_cpu --frequency
    WARNING: couldn't run on cpu 0
    WARNING: couldn't run on cpu 8
      ...
    WARNING: couldn't run on cpu 144
    WARNING: couldn't run on cpu 152
    min:    18446744073.710 GHz (cpu -1)
    max:    0.000 GHz (cpu -1)
    avg:    0.000 GHz

The command uses a perf counter to measure CPU cycles over a fixed
amount of time, in order to approximate the frequency of the machine.
The counters were returning zero once a guest was started, regardless of
weather it was still running or had been shut down.

By dumping the value of MMCR2, it was observed that once a guest is
running MMCR2 is set to 1s - which stops counters from running:

    $ sudo sh -c 'echo p > /proc/sysrq-trigger'
    CPU: 0 PMU registers, ppmu = POWER8 n_counters = 6
    PMC1:  5b635e38 PMC2: 00000000 PMC3: 00000000 PMC4: 00000000
    PMC5:  1bf5a646 PMC6: 5793d378 PMC7: deadbeef PMC8: deadbeef
    MMCR0: 0000000080000000 MMCR1: 000000001e000000 MMCRA: 0000040000000000
    MMCR2: fffffffffffffc00 EBBHR: 0000000000000000
    EBBRR: 0000000000000000 BESCR: 0000000000000000
    SIAR:  00000000000a51cc SDAR:  c00000000fc40000 SIER:  0000000001000000

This is done unconditionally in book3s_hv_interrupts.S upon entering the
guest, and the original value is only save/restored if the host has
indicated it was using the PMU. This is okay, however the user of the
PMU needs to ensure that it is in a defined state when it starts using
it.

Fixes: e05b9b9e5c10 ("powerpc/perf: Power8 PMU support")
Cc: stable@vger.kernel.org
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
10 years agopowerpc/perf: Add PPMU_ARCH_207S define
Joel Stanley [Tue, 8 Jul 2014 06:38:21 +0000 (16:08 +0930)] 
powerpc/perf: Add PPMU_ARCH_207S define

Instead of separate bits for every POWER8 PMU feature, have a single one
for v2.07 of the architecture.

This saves us adding a MMCR2 define for a future patch.

Cc: stable@vger.kernel.org
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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