Commit graph

336,237 commits

Author SHA1 Message Date
Jean-Christophe PLAGNIOL-VILLARD
51ac51a6a5 ARM: at91: fix missing #interrupt-cells on gpio-controller
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Tested-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-09-17 10:25:01 +02:00
Wang Xingchao
b98b601672 drm/i915: HDMI - Clear Audio Enable bit for Hot Plug
Clear Audio Enable bit to trigger unsolicated event to notify Audio
Driver part the HDMI hot plug change. The patch fixed the bug when
remove HDMI cable the bit was not cleared correctly.

In intel_hdmi_dpms(), if intel_hdmi->has_audio been true, the "Audio enable bit" will
be set to trigger unsolicated event to notify Alsa driver the change.

intel_hdmi->has_audio will be reset to false from intel_hdmi_detect() after
remove the hdmi cable, here's debug log:

[  187.494153] [drm:output_poll_execute], [CONNECTOR:17:HDMI-A-1] status updated from 1 to 2
[  187.525349] [drm:intel_hdmi_detect], HDMI: has_audio = 0

so when comes back to intel_hdmi_dpms(), the "Audio enable bit" will not be cleared. And this
cause the eld infomation and pin presence doesnot update accordingly in alsa driver side.

This patch will also trigger unsolicated event to alsa driver to notify the hot plug event:

[  187.853159] ALSA sound/pci/hda/patch_hdmi.c:772 HDMI hot plug event: Codec=3 Pin=5 Presence_Detect=0 ELD_Valid=1
[  187.853268] ALSA sound/pci/hda/patch_hdmi.c:990 HDMI status: Codec=3 Pin=5 Presence_Detect=0 ELD_Valid=0

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-17 10:13:02 +02:00
Chris Wilson
7e81a42e34 drm/i915: Reduce a pin-leak BUG into a WARN
Pin-leaks persist and we get the perennial bug reports of machine
lockups to the BUG_ON(pin_count==MAX). If we instead loudly report that
the object cannot be pinned at that time it should prevent the driver from
locking up, and hopefully restore a semblance of working whilst still
leaving us a OOPS to debug.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-17 10:12:57 +02:00
Daniel Vetter
5b5896e4e1 drm/i915: enable lvds pin pairs before dpll on gen2
Otherwise things migt not work too well.

Breakage introduced in

commit eb1cbe4848
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Mar 28 23:12:16 2012 +0200

    drm/i915: split PLL update code out of i9xx_crtc_mode_set

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org (for 3.5 only)
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-17 10:04:39 +02:00
Stefan Haberland
03429f34c2 s390/dasd: fix read unit address configuration loop
Read unit address is done for all devices during online processing to read
out LCU features. This is also done after disconnect/connect a LCU.
Some older storage hardware does not provide the capability to read unit
address configuration.
This leads to a loop trying to read unit address configuration every 30
seconds. The device is still operational but logs are flooded with error
messages.

Fix the loop by recognizing a command reject saying that the suborder
for ruac is not supported.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-09-17 09:58:21 +02:00
Stefan Haberland
12d7b1078b s390/dasd: fix pathgroup race
If a new path is available we need to verify the path data. If it is the
first path for a device the stop bits are removed after path verification.
If a pathgroup is established we need to set system characteristics for
the lcu. Therefore I/O has to be started.
If the device is stopped the set system characteristics worker may block
the path verification worker and the device is blocked.

Turn on failfast for set system characteristics CQR to prevent a deadlock
with the path verification worker.

If a pathgroup is established on a device that is not in use trigger path
verification. Maybe we were not informed about a working path.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Reviewed-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-09-17 09:58:18 +02:00
Vinod Koul
fb4a9779f1 ALSA: Compress - add codec parameter checks
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-17 09:54:50 +02:00
Vinod Koul
4dc040a0b3 ALSA: compress - move the buffer check
Commit ALSA: compress_core: integer overflow in snd_compr_allocate_buffer()
added a new error check for input params.
this add new routine for input checks and moves buffer overflow check to this
new routine. This allows the error value to be propogated to user space

Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-17 09:54:41 +02:00
Gerald Schaefer
4db84d4f07 s390/mm: fix user access page-table walk code
The s390 page-table walk code, used for user copy and futex, currently
cannot handle huge pages. As far as user copy is concerned, that is
not really a problem because those functions will only be used on old
hardware that has no huge page support. But the futex code will also
use pagetable walk functions on current hardware when user space runs
in primary space mode. So, if a futex sits in a huge page, the futex
operation on it will result in a page fault loop or even data
corruption.

This patch adds the code for resolving huge page mappings in the user
access pagetable walk code on s390.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-09-17 09:44:24 +02:00
Richard Zhao
28342c6113 ARM: dts: imx6q-sabrelite: add usbmisc device
- add usbmisc device
- set property fsl,usbmisc for usb controllers
- set disable-over-current for imx6q-sabrelite usb otg

Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-17 15:12:51 +08:00
Shawn Guo
cb32b4e0fc imx-clk-dt-lookup
It replaces the clk_register_clkdev in imx6q clock driver with DT
 lookup.  It depends on Mike's clk-3.7 branch.
 
 When it gets merged together with imx-dt-3.7, there is a trivial
 conflict on arch/arm/boot/dts/imx6q.dtsi.
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Merge tag 'imx-clk-dt-lookup' into imx/dt-for-3.7-2

Conflicts:
	arch/arm/boot/dts/imx6q.dtsi
2012-09-17 15:12:28 +08:00
Shawn Guo
b1f174b19c Merge remote-tracking branch 'mturquette/clk-3.7' into imx/dt-for-3.7-2 2012-09-17 15:11:28 +08:00
Shawn Guo
8f71fb87e2 imx-dt-3.7
- All imx53 board files are removed by the equal device tree support
 - The efikamx board files are removed to ease device tree migration
 - Remove dummy pinctrl state by setting up pinctrl in device tree
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Merge tag 'imx-dt-3.7' into imx/dt-for-3.7-2
2012-09-17 15:10:58 +08:00
Patrice Chotard
6fc84b8411 ARM: ux500: 8500: use hsit_a_2 group for HSI
Due to specific constraint, pin HSIT_ACWAKE0_a is
not driven by HSI block but as a GPIO.

Cc: arm@kernel.org
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Patrice Chotard <patrice.chotard@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-17 08:55:05 +02:00
Fabio Estevam
d6475317b5 ARM: dts: mx23: Add USB resources
Add USB resources for mx23.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-17 14:42:02 +08:00
Gavin Shan
b9ae38aeca powerpc/powernv: Remove unused functions
We don't need them anymore. The patch removes those functions.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:35:16 +10:00
Gavin Shan
c40a4210a4 powerpc/powernv: Using PCI core to do resource assignment
Currently, the PCI probe flags "PCI_PROBE_ONLY | PCI_REASSIGN_ALL_RSRC"
used on powernv platform. That means the platform has to do the PCI
resource assignment by itself.

The patch changes the PCI probe flag to "PCI_REASSIGN_ALL_RSRC" so
that the PCI core will do the resource assignment. Also, the I/O
and MMIO minimal alignment for P2P bridges have been configured
while doing fixup for the PHBs.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:35:15 +10:00
Gavin Shan
e47747f479 powerpc/powernv: Fix overrunning segment tracing array
There're 2 arrays introduced to trace which PE has occupied the
corresponding resource (I/O or MMIO) segment. However, we didn't
allocate enough memory for them and that possiblly leads to PE
descriptor corruption.

The patch fixes that by allocating enough memory for those 2 arrays.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:35:15 +10:00
Gavin Shan
db1266c852 powerpc/powernv: Skip check on PE if necessary
While the device driver or PCI core tries to enable PCI device, the
platform dependent callback "ppc_md.pcibios_enable_device_hook" will
be called to check if there has one associated PE for the PCI device.
If we don't have the associated PE for the PCI device, it's not allowed
to enable the PCI device. Unfortunately, there might have some cases
we have to enable the PCI device (e.g. P2P bridge), but the PEs have
not been created yet.

The patch handles the unfortunate cases. Each PHB (struct pnv_phb)
has one field "initialized" to trace if the PEs have been created
and configured or not. When the PEs are not available, we won't check
the associated PE for the PCI device to be enabled.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:35:15 +10:00
Gavin Shan
13395c48c3 powerpc/powernv: Initialize DMA for PEs
The patch introduces additional wrapper function to call the original
implementation so that the DMA can be configured for all existing PEs.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:35:14 +10:00
Gavin Shan
11685becbf powerpc/powernv: I/O and MMIO resource assignment for PEs
There're 2 types of PCI bus sensitive PEs: (A) The PE includes
single PCI bus. (B) The PE includes the PCI bus and all the subordinate
PCI buses, and the patch tries to assign I/O and MMIO resources
based on created PEs. Fortunately, we figured out unified scheme
to do resource assignment for all types of PCI bus based PEs according
to Ben's idea:

        - Resource assignment based on PE from top to bottom.
        - The soureces, either I/O or MMIO, of the PE are figured out
          from the assigned PCI bus.
        - The occupied resource by parent PE could possibilly be overrided
          by children PEs.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:35:14 +10:00
Gavin Shan
7ebdf956df powerpc/powernv: PE list based on creation order
The resource (I/O and MMIO) will be assigned on basis of PE from
top to bottom so that we can implement the trick here: the resource
that has been assigned to parent PE could be taken by child PE if
necessary.

The current implementation already has PE list per PHB basis, but
the list doesn't meet our requirment: tracing PE based on their
cration time from top to bottom. So the patch does rename for the
DMA based PE list and introduces the list to trace the PEs sequentially
based on their creation time.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:35:13 +10:00
Gavin Shan
fb446ad075 powerpc/powernv: Create bus sensitive PEs
Basically, there're 2 types of PCI bus sensitive PEs: (A) The PE
includes single PCI bus. (B) The PE includes the PCI bus and all
the subordinate PCI buses. At present, we'd like to put PCI bus
originated by PCI-e link to form PE that contains single PCI bus,
and the PCIe-to-PCI bridge will form the 2nd type of PE. We don't
figure out to detect PLX bridge yet. Once we can detect PLX bridge
some day, we have to put PCI buses originated from the downstream
port of PLX bridge to the 2nd type of PE.

The patch changes the original implementation for a little bit
to support 2 types of PCI bus sensitive PEs described as above.
Also, the function used to retrieve the corresponding PE according
to the given PCI device has been changed based on that because each
PCI device should trace the directly associated PE.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Reviewed-by: Richard Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:34:43 +10:00
Li Zhong
e72bbbab27 powerpc/trace: Fix interrupt tracepoints vs. RCU
There are a few tracepoints in the interrupt code path, which is before
irq_enter(), or after irq_exit(), like
trace_irq_entry()/trace_irq_exit() in do_IRQ(),
trace_timer_interrupt_entry()/trace_timer_interrupt_exit() in
timer_interrupt().

If the interrupt is from idle(), and because tracepoint contains RCU
read-side critical section, we could see following suspicious RCU usage
reported:

[  145.127743] ===============================
[  145.127747] [ INFO: suspicious RCU usage. ]
[  145.127752] 3.6.0-rc3+ #1 Not tainted
[  145.127755] -------------------------------
[  145.127759] /root/.workdir/linux/arch/powerpc/include/asm/trace.h:33
suspicious rcu_dereference_check() usage!
[  145.127765]
[  145.127765] other info that might help us debug this:
[  145.127765]
[  145.127771]
[  145.127771] RCU used illegally from idle CPU!
[  145.127771] rcu_scheduler_active = 1, debug_locks = 0
[  145.127777] RCU used illegally from extended quiescent state!
[  145.127781] no locks held by swapper/0/0.
[  145.127785]
[  145.127785] stack backtrace:
[  145.127789] Call Trace:
[  145.127796] [c00000000108b530] [c000000000013c40] .show_stack
+0x70/0x1c0 (unreliable)
[  145.127806] [c00000000108b5e0]
[c0000000000f59d8] .lockdep_rcu_suspicious+0x118/0x150
[  145.127813] [c00000000108b680] [c00000000000fc58] .do_IRQ+0x498/0x500
[  145.127820] [c00000000108b750] [c000000000003950]
hardware_interrupt_common+0x150/0x180
[  145.127828] --- Exception: 501 at .plpar_hcall_norets+0x84/0xd4
[  145.127828]     LR = .check_and_cede_processor+0x38/0x70
[  145.127836] [c00000000108bab0] [c0000000000665dc] .shared_cede_loop
+0x5c/0x100
[  145.127844] [c00000000108bb70] [c000000000588ab0] .cpuidle_enter
+0x30/0x50
[  145.127850] [c00000000108bbe0]
[c000000000588b0c] .cpuidle_enter_state+0x3c/0xb0
[  145.127857] [c00000000108bc60] [c000000000589730] .cpuidle_idle_call
+0x150/0x6c0
[  145.127863] [c00000000108bd30] [c000000000058440] .pSeries_idle
+0x10/0x40
[  145.127870] [c00000000108bda0] [c00000000001683c] .cpu_idle
+0x18c/0x2d0
[  145.127876] [c00000000108be60] [c00000000000b434] .rest_init
+0x124/0x1b0
[  145.127884] [c00000000108bef0] [c0000000009d0d28] .start_kernel
+0x568/0x588
[  145.127890] [c00000000108bf90] [c000000000009660] .start_here_common
+0x20/0x40

This is because the RCU usage in interrupt context should be used in
area marked by rcu_irq_enter()/rcu_irq_exit(), called in
irq_enter()/irq_exit() respectively.

Move them into the irq_enter()/irq_exit() area to avoid the reporting.

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:54 +10:00
Aneesh Kumar K.V
78f1dbde9f powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit
slice array size and slice mask size depend on PGTABLE_RANGE.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:53 +10:00
Aneesh Kumar K.V
f033d659c3 powerpc/mm: Update VSID allocation documentation
This update the proto-VSID and VSID scramble related information
to be more generic by using names instead of current values.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:53 +10:00
Aneesh Kumar K.V
048ee0993e powerpc/mm: Add 64TB support
Increase max addressable range to 64TB. This is not tested on
real hardware yet.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:51 +10:00
Aneesh Kumar K.V
735cafc32b powerpc/mm: Use 32bit array for slb cache
With larger vsid we need to track more bits of ESID in slb cache
for slb invalidate.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:51 +10:00
Aneesh Kumar K.V
ac8dc2823a powerpc/mm: Use the required number of VSID bits in slbmte
ASM_VSID_SCRAMBLE can leave non-zero bits in the high 28 bits of the result
for 256MB segment (40 bits for 1T segment). Properly mask them before using
the values in slbmte

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:50 +10:00
Aneesh Kumar K.V
7aa0727f33 powerpc/mm: Increase the slice range to 64TB
This patch makes the high psizes mask as an unsigned char array
so that we can have more than 16TB. Currently we support upto
64TB

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:50 +10:00
Aneesh Kumar K.V
67550080b8 powerpc/mm: Make KERN_VIRT_SIZE not dependend on PGTABLE_RANGE
As we keep increasing PGTABLE_RANGE we need not increase the virual
map area for kernel.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:50 +10:00
Aneesh Kumar K.V
5524a27d39 powerpc/mm: Convert virtual address to vpn
This patch convert different functions to take virtual page number
instead of virtual address. Virtual page number is virtual address
shifted right by VPN_SHIFT (12) bits. This enable us to have an
address range of upto 76 bits.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:49 +10:00
Aneesh Kumar K.V
dcda287a9b powerpc/mm: Simplify hpte_decode
This patch simplify hpte_decode for easy switching of virtual address to
virtual page number in the later patch

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:49 +10:00
Aneesh Kumar K.V
f6412b742a powerpc/mm: Use hpt_va to compute virtual address
Don't open code the same

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:48 +10:00
Aneesh Kumar K.V
f038392363 powerpc/mm: Replace open coded CONTEXT_BITS value
To clarify the meaning for future readers, replace the open coded
19 with CONTEXT_BITS

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:48 +10:00
Scott Wood
f3d3444572 powerpc/mm: Fix typo in PTRS_PER_PUD
PTRS_PER_PUD should be based on PUD_INDEX_SIZE, not PMD_INDEX_SIZE.  We
got away with it because PUD and PMD had the same index size, but this is
no longer true with Aneesh's patchset to support a 46-bit user effective
address space.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:47 +10:00
Michael Neuling
b92a66a65c powerpc: Add denormalisation exception handling for POWER6/7
On POWER6 and POWER7 if the input operand to an instruction is a
denormalised single precision binary floating point value we can take
a denormalisation exception where it's expected that the hypervisor
(HV=1) will fix up the inputs before the instruction is run.

This adds code to handle this denormalisation exception for POWER6 and
POWER7.

It also add a CONFIG_PPC_DENORMALISATION option and sets it in
pseries/ppc64_defconfig.

This is useful on bare metal systems only.  Based on patch from Milton
Miller.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:31:47 +10:00
Marek Vasut
8c41d57395 ARM: dts: mxs: Add ethernetX to macX aliases
Add ethernet0 and ethernet1 aliases into the imx28.dtsi file, as
that is what most bootloaders use to pass MAC address. The bootloader
seeks for this alias and adds "mac-address" and "local-mac-address"
properties to the aliased node. This fixes issues with FEC having
NULL MAC address when update_fec_mac_prop() wasn't called. And
not all boards call update_fec_mac_prop() .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-17 14:28:17 +08:00
Shawn Guo
0b2d795e18 mxs-clk-dt-lookup
It replaces clk_register_clkdev in mxs clock driver with DT lookup.
 The series depends on pull request mxs-dt-3.7 and Mike's clk branch
 below.
 
 git://git.linaro.org/people/mturquette/linux.git clk-3.7
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Merge tag 'mxs-clk-dt-lookup' into mxs/dt-for-3.7-2
2012-09-17 14:26:52 +08:00
Shawn Guo
86003ece6f Merge remote-tracking branch 'mturquette/clk-3.7' into mxs/dt-for-3.7-2 2012-09-17 14:26:40 +08:00
Shawn Guo
9adaef9c14 mxs-dt-3.7
- Remove all board files and make mach-mxs a DT-only platform
 - Some dts file formatting and style fixing
 - DTS update for additional boards and devices
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Merge tag 'mxs-dt-3.7' into mxs/dt-for-3.7-2
2012-09-17 14:26:13 +08:00
Benjamin Herrenschmidt
eda485f06d Merge remote-tracking branch 'pci/pci/gavin-window-alignment' into next
Merge Gavin patches from the PCI tree as subsequent powerpc
patches are going to depend on them

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-17 16:07:43 +10:00
David S. Miller
a1f6d8f771 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
This is a batch of fixes intended for the 3.6 stream.

Arend van Spriel sends a simple thinko fix to correct a constant,
preventing the setting of an invalid power level.

Colin Ian King gives us a simple allocation failure check to avoid a
NULL pointer dereference.

Felix Fietkau sends another ath9k tx power patch, this time disabling a
feature that has been reported to cause rx problems.

Hante Meuleman provides a pair of endian fixes for brcmfmac.

Larry Finger offers an rtlwifi fix that avoids a system lockup related
to loading the wrong firmware for RTL8188CE devices.

These have been in linux-next for a few days and I think they should be
included in the final 3.6 kernel if possible.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-17 01:28:58 -04:00
David S. Miller
ba01dfe182 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
This is another batch of updates intended for the 3.7 stream.

There are not a lot of large items, but iwlwifi, mwifiex, rt2x00,
ath9k, and brcmfmac all get some attention.  Wei Yongjun also provides
a series of small maintenance fixes.

This also includes a pull of the wireless tree in order to satisfy
some prerequisites for later patches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-17 00:57:32 -04:00
David S. Miller
e97563989a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jerr Kirsher says:

> This series contains updates to igb (specifically PTP code).

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-17 00:49:02 -04:00
Mandeep Singh Baines
dbc5e1e89a ARM: SAMSUNG: use spin_lock_irqsave() in clk_set_parent
From 0cdf3aff, "ARM: SAMSUNG: use spin_lock_irqsave() in
clk_{enable,disable}":

  The clk_enable()and clk_disable() can be used process and ISR either.
  And actually it is used for real product and other platforms use it
  now. So spin_lock_irqsave() should be used instead.

We need to make a similar change in clk_set_parent(). Otherwise,
you can potentially get spinlock recursion:

BUG: spinlock recursion on CPU#0, kinteractive/68
 lock: 807832a8, .magic: dead4ead, .owner: kinteractive/68, .owner_cpu: 0
[<80015f54>] (unwind_backtrace+0x0/0x128) from [<804f2914>] (dump_stack+0x20/0x24)
[<804f2914>] (dump_stack+0x20/0x24) from [<804f57b8>] (spin_dump+0x80/0x94)
[<804f57b8>] (spin_dump+0x80/0x94) from [<804f57f8>] (spin_bug+0x2c/0x30)
[<804f57f8>] (spin_bug+0x2c/0x30) from [<80222730>] (do_raw_spin_lock+0x54/0x150)
[<80222730>] (do_raw_spin_lock+0x54/0x150) from [<804f96ec>] (_raw_spin_lock_irqsave+0x20/0x28)
[<804f96ec>] (_raw_spin_lock_irqsave+0x20/0x28) from [<80022ea4>] (clk_enable+0x3c/0x84)
[<80022ea4>] (clk_enable+0x3c/0x84) from [<8038336c>] (s5p_mfc_clock_on+0x60/0x74)
[<8038336c>] (s5p_mfc_clock_on+0x60/0x74) from [<8038645c>] (s5p_mfc_read_info+0x20/0x38)
[<8038645c>] (s5p_mfc_read_info+0x20/0x38) from [<8037ca3c>] (s5p_mfc_handle_frame+0x2e4/0x4bc)
[<8037ca3c>] (s5p_mfc_handle_frame+0x2e4/0x4bc) from [<8037d420>] (s5p_mfc_irq+0x1ec/0x6cc)
[<8037d420>] (s5p_mfc_irq+0x1ec/0x6cc) from [<8007fc74>] (handle_irq_event_percpu+0x8c/0x244)
[<8007fc74>] (handle_irq_event_percpu+0x8c/0x244) from [<8007fe78>] (handle_irq_event+0x4c/0x6c)
[<8007fe78>] (handle_irq_event+0x4c/0x6c) from [<80082dd8>] (handle_fasteoi_irq+0xe4/0x150)
[<80082dd8>] (handle_fasteoi_irq+0xe4/0x150) from [<8007f424>] (generic_handle_irq+0x3c/0x50)
[<8007f424>] (generic_handle_irq+0x3c/0x50) from [<8000f7c4>] (handle_IRQ+0x88/0xc8)
[<8000f7c4>] (handle_IRQ+0x88/0xc8) from [<80008564>] (gic_handle_irq+0x44/0x68)
[<80008564>] (gic_handle_irq+0x44/0x68) from [<8000e400>] (__irq_svc+0x40/0x60)
Exception stack(0xef3cbe68 to 0xef3cbeb0)
[<8000e400>] (__irq_svc+0x40/0x60) from [<80022cfc>] (clk_set_parent+0x30/0x74)
[<80022cfc>] (clk_set_parent+0x30/0x74) from [<803ac7f8>] (set_apll.isra.0+0x28/0xb0)
[<803ac7f8>] (set_apll.isra.0+0x28/0xb0) from [<803ac8e4>] (exynos5250_set_frequency+0x64/0xb8)
[<803ac8e4>] (exynos5250_set_frequency+0x64/0xb8) from [<803ac280>] (exynos_target+0x1b0/0x220)
[<803ac280>] (exynos_target+0x1b0/0x220) from [<803a4a0c>] (__cpufreq_driver_target+0xb0/0xd4)
[<803a4a0c>] (__cpufreq_driver_target+0xb0/0xd4) from [<803aab80>] (cpufreq_interactive_updown_task+0x214/0x264)
[<803aab80>] (cpufreq_interactive_updown_task+0x214/0x264) from [<80047d04>] (kthread+0x9c/0xa8)
[<80047d04>] (kthread+0x9c/0xa8) from [<8000fa48>] (kernel_thread_exit+0x0/0x8)

Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Suggested-by: Sunil Mazhavanchery <sunilm@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Minho Ban <mhban@samsung.com>
Cc: Jaecheol Lee <jc.lee@samsung.com>
Cc: Sunyoung Kang <sy0816.kang@samsung.com>
Cc: Olof Johansson <olofj@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-09-17 13:13:42 +09:00
Greg Kroah-Hartman
2bcb132c69 Merge 3.6-rc6 into usb-next
This resolves the merge problems with:
	drivers/usb/dwc3/gadget.c
	drivers/usb/musb/tusb6010.c
that had been seen in linux-next.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-16 20:42:46 -07:00
Olof Johansson
f4936639bc From Paul Walmsley <paul@pwsan.com>:
AM33xx hwmod data and miscellaneous clock and hwmod fixes.  AM33xx
 should now boot on mainline after this is applied, according to
 Vaibhav.
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Merge tag 'omap-devel-am33xx-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

From Tony Lindgren:
From Paul Walmsley <paul@pwsan.com>:

AM33xx hwmod data and miscellaneous clock and hwmod fixes.  AM33xx
should now boot on mainline after this is applied, according to
Vaibhav.

(The shortlog makes no sense here since it contains mostly the dependent
cleanups that are part of the preceding branches).

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-16 20:13:04 -07:00
Olof Johansson
3a839ce4f7 From Paul Walmsley <paul@pwsan.com>:
Clean up and standardize several parts of
 arch/arm/mach-omap2/Makefile.  Beyond readability and diffstat
 improvements, the series should reduce the risk of conflicts during
 future cleanups by ensuring related lines are in the same section of the
 Makefile.
 
 smatch and string-wrapping cleanups for the OMAP subarch code.
 
 These changes fix some of the more meaningful warnings that smatch
 returns for the OMAP subarch code, and unwraps strings that are
 wrapped at the 80-column boundary, to conform with the current
 practice.
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Merge tag 'omap-cleanup-makefile-sparse-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren:
From Paul Walmsley <paul@pwsan.com>:

Clean up and standardize several parts of
arch/arm/mach-omap2/Makefile.  Beyond readability and diffstat
improvements, the series should reduce the risk of conflicts during
future cleanups by ensuring related lines are in the same section of the
Makefile.

smatch and string-wrapping cleanups for the OMAP subarch code.

These changes fix some of the more meaningful warnings that smatch
returns for the OMAP subarch code, and unwraps strings that are
wrapped at the 80-column boundary, to conform with the current
practice.

* tag 'omap-cleanup-makefile-sparse-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: unwrap strings
  ARM: OMAP: clean up some smatch warnings, fix some printk(KERN_ERR ...
  ARM: OMAP2+: clean up PRCM sections of the Makefile
  ARM: OMAP2+: clean up OMAP clock Makefile sections
  ARM: OMAP2+: clean up OMAP4 PRM & sleep build directives in Makefile
  ARM: OMAP2+: move MPU INTCPS, secure monitor, SDRC build directives in Makefile
  ARM: OMAP2+: clean up omap_hwmod.o build directives in Makefile
  ARM: OMAP2+: clean up whitespace in Makefile
2012-09-16 20:08:01 -07:00
Olof Johansson
8e51036d34 This branch contains changes needed to make omap2+
work properly with sparse IRQ. It also removes
 dependencies to mach/hardware.h. These help moving
 things towards ARM single zImage support.
 
 This branch is based on a commit in tty-next
 branch with omap-devel-gpmc-fixed-for-v3.7 and
 cleanup-omap-tags-for-v3.7 merged in to keep things
 compiling and sort out some merge conflicts.
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Merge tag 'omap-cleanup-sparseirq-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren:

This branch contains changes needed to make omap2+
work properly with sparse IRQ. It also removes
dependencies to mach/hardware.h. These help moving
things towards ARM single zImage support.

This branch is based on a commit in tty-next
branch with omap-devel-gpmc-fixed-for-v3.7 and
cleanup-omap-tags-for-v3.7 merged in to keep things
compiling and sort out some merge conflicts.

* tag 'omap-cleanup-sparseirq-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP1: Move SoC specific headers from plat to mach for omap1
  ARM: OMAP2+ Move SoC specific headers to be local to mach-omap2
  ARM: OMAP: Split plat/hardware.h, use local soc.h for omap2+
  ARM: OMAP: Remove unused old gpio-switch.h
  ARM: OMAP1: Move plat/irqs.h to mach/irqs.h
  ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ
  ARM: OMAP2+: Prepare for irqs.h removal
  W1: OMAP HDQ1W: Remove dependencies to mach/hardware.h
  Input: omap-keypad: Remove dependencies to mach includes
  ARM: OMAP: Move gpio.h to include/linux/platform_data
  ARM: OMAP2+: Remove hardcoded twl4030 gpio_base, irq_base and irq_end
  ARM: OMAP2+: Remove unused nand_irq for GPMC
  ARM: OMAP2+: Make INTCPS_NR_IRQS local for mach-omap2/irq.c
  ARM: OMAP1: Define OMAP1_INT_I2C locally
  ARM: OMAP1: Move define of OMAP_LCD_DMA to dma.h
2012-09-16 20:05:06 -07:00