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506,942 commits

Author SHA1 Message Date
Aravind Gopalakrishnan
0a0039ad54 hwmon: (fam15h_power) Add support for two more processors
Fam16h,M30h(Mullins) and Fam15hM30h(Kaveri) processors can
report 'power_crit' value. So, adding their respective device ids.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-09-16 21:16:26 -07:00
Aravind Gopalakrishnan
961a23788c hwmon: (fam15h_power) Make actual power reporting conditional
power1_input should only be reported for Fam15h, Models 00h-0fh
So, introduce a is_visible function to take care of this.

As suggested by Guenter here:
http://marc.info/?l=linux-kernel&m=141038145616437&w=2

Suggested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 22e32f4f57 ('x86,AMD: Power driver support for AMD's family 16h processors')
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2014-09-16 21:16:26 -07:00
Sowmini Varadhan
c21c4ab0d6 sparc64: Move request_irq() from ldc_bind() to ldc_alloc()
The request_irq() needs to be done from ldc_alloc()
to avoid the following (caught by lockdep)

 [00000000004a0738] __might_sleep+0xf8/0x120
 [000000000058bea4] kmem_cache_alloc_trace+0x184/0x2c0
 [00000000004faf80] request_threaded_irq+0x80/0x160
 [000000000044f71c] ldc_bind+0x7c/0x220
 [0000000000452454] vio_port_up+0x54/0xe0
 [00000000101f6778] probe_disk+0x38/0x220 [sunvdc]
 [00000000101f6b8c] vdc_port_probe+0x22c/0x300 [sunvdc]
 [0000000000451a88] vio_device_probe+0x48/0x60
 [000000000074c56c] really_probe+0x6c/0x300
 [000000000074c83c] driver_probe_device+0x3c/0xa0
 [000000000074c92c] __driver_attach+0x8c/0xa0
 [000000000074a6ec] bus_for_each_dev+0x6c/0xa0
 [000000000074c1dc] driver_attach+0x1c/0x40
 [000000000074b0fc] bus_add_driver+0xbc/0x280

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-16 18:31:31 -07:00
bob picco
05aa1651e8 sparc64: T5 PMU
The T5 (niagara5) has different PCR related HV fast trap values and a new
HV API Group. This patch utilizes these and shares when possible with niagara4.

We use the same sparc_pmu niagara4_pmu. Should there be new effort to
obtain the MCU perf statistics then this would have to be changed.

Cc: sparclinux@vger.kernel.org
Signed-off-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-16 18:26:40 -07:00
bob picco
7c21d533ab sparc64: mem boot option correction
The "mem" boot option can result in many unexpected consequences. This patch
attempts to prevent boot hangs which have been experienced on T4-4 and T5-8.
Basically the boot loader allocates vmlinuz and initrd higher in available
OBP physical memory. For example, on a 2Tb T5-8 it isn't possible to boot
with mem=20G.

The patch utilizes memblock to avoid reserved regions and trim memory which
is only free. Other improvements are possible for a multi-node machine.

This is a snippet of the boot log with mem=20G on T5-8 with the patch applied:
MEMBLOCK configuration:	<- before memory reduction
 memory size = 0x1ffad6ce000 reserved size = 0xa1adf44
 memory.cnt  = 0xb
 memory[0x0]    [0x00000030400000-0x00003fdde47fff], 0x3fada48000 bytes
 memory[0x1]    [0x00003fdde4e000-0x00003fdde4ffff], 0x2000 bytes
 memory[0x2]    [0x00080000000000-0x00083fffffffff], 0x4000000000 bytes
 memory[0x3]    [0x00100000000000-0x00103fffffffff], 0x4000000000 bytes
 memory[0x4]    [0x00180000000000-0x00183fffffffff], 0x4000000000 bytes
 memory[0x5]    [0x00200000000000-0x00203fffffffff], 0x4000000000 bytes
 memory[0x6]    [0x00280000000000-0x00283fffffffff], 0x4000000000 bytes
 memory[0x7]    [0x00300000000000-0x00303fffffffff], 0x4000000000 bytes
 memory[0x8]    [0x00380000000000-0x00383fffc71fff], 0x3fffc72000 bytes
 memory[0x9]    [0x00383fffc92000-0x00383fffca1fff], 0x10000 bytes
 memory[0xa]    [0x00383fffcb4000-0x00383fffcb5fff], 0x2000 bytes
 reserved.cnt  = 0x2
 reserved[0x0]  [0x00380000000000-0x0038000117e7f8], 0x117e7f9 bytes
 reserved[0x1]  [0x00380004000000-0x0038000d02f74a], 0x902f74b bytes
...
MEMBLOCK configuration:	<- after reduction of memory
 memory size = 0x50a1adf44 reserved size = 0xa1adf44
 memory.cnt  = 0x4
 memory[0x0]    [0x00380000000000-0x0038000117e7f8], 0x117e7f9 bytes
 memory[0x1]    [0x00380004000000-0x0038050d01d74a], 0x50901d74b bytes
 memory[0x2]    [0x00383fffc92000-0x00383fffca1fff], 0x10000 bytes
 memory[0x3]    [0x00383fffcb4000-0x00383fffcb5fff], 0x2000 bytes
 reserved.cnt  = 0x2
 reserved[0x0]  [0x00380000000000-0x0038000117e7f8], 0x117e7f9 bytes
 reserved[0x1]  [0x00380004000000-0x0038000d02f74a], 0x902f74b bytes
...
Early memory node ranges
  node   7: [mem 0x380000000000-0x38000117dfff]
  node   7: [mem 0x380004000000-0x380f0d01bfff]
  node   7: [mem 0x383fffc92000-0x383fffca1fff]
  node   7: [mem 0x383fffcb4000-0x383fffcb5fff]
Could not find start_pfn for node 0
Could not find start_pfn for node 1
Could not find start_pfn for node 2
Could not find start_pfn for node 3
Could not find start_pfn for node 4
Could not find start_pfn for node 5
Could not find start_pfn for node 6
.

The patch was tested on T4-1, T5-8 and Jalap?no.

Cc: sparclinux@vger.kernel.org
Signed-off-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-16 18:23:11 -07:00
Kees Cook
109ab90974 drm/ttm: make sure format string cannot leak in
While zone->name is currently hard coded, the call to kobject_init_and_add()
should follow the more defensive argument list usage (as already done in
other places in ttm_memory.c) where "%s" is used instead of directly passing
in a variable as a format string.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 11:15:01 +10:00
Benjamin Gaignard
7dc9250f1d drm: sti: do not iterate over the info frame array
avi infoframe is a 13 bytes array, do not read after this limite.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 11:02:40 +10:00
Ezequiel Garcia
d898ce0367 drm/tilcdc: panel: Add support for enable GPIO
In order to support the "enable GPIO" available in many panel devices,
this commit adds a proper devicetree binding.

By providing an enable GPIO in the devicetree, the driver can now turn
off and on the panel device, and/or the backlight device. Both the
backlight and the GPIO are optional properties.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:55:27 +10:00
Ezequiel Garcia
12778fc143 drm/tilcdc: panel: Set return value explicitly
Instead of setting an initial value for the return code, set it explicitly
on each error path. This is just a cosmetic cleanup, as preparation for the
enable GPIO support.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:55:19 +10:00
Ezequiel Garcia
18c44db8ca drm/tilcdc: panel: Fix backlight devicetree support
The current backlight support is broken; the driver expects a backlight-class
in the panel devicetree node. Fix this by implementing it properly, getting
an optional backlight from a phandle.

This shouldn't cause any backward-compatibility DT issue because the current
implementation doesn't work and is not even documented.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:55:10 +10:00
bob picco
3dee9df548 sparc64: find_node adjustment
We have seen an issue with guest boot into LDOM that causes early boot failures
because of no matching rules for node identitity of the memory. I analyzed this
on my T4 and concluded there might not be a solution. I saw the issue in
mainline too when booting into the control/primary domain - with guests
configured.  Note, this could be a firmware bug on some older machines.

I'll provide a full explanation of the issues below. Should we not find a
matching BEST latency group for a real address (RA) then we will assume node 0.
On the T4-2 here with the information provided I can't see an alternative.

Technically the LDOM shown below should match the MBLOCK to the
favorable latency group. However other factors must be considered too. Were
the memory controllers configured "fine" grained interleave or "coarse"
grain interleaved -  T4. Also should a "group" MD node be considered a NUMA
node?

There has to be at least one Machine Description (MD) "group" and hence one
NUMA node. The group can have one or more latency groups (lg) - more than one
memory controller. The current code chooses the smallest latency as the most
favorable per group. The latency and lg information is in MLGROUP below.
MBLOCK is the base and size of the RAs for the machine as fetched from OBP
/memory "available" property. My machine has one MBLOCK but more would be
possible - with holes?

For a T4-2 the following information has been gathered:
with LDOM guest
MEMBLOCK configuration:
 memory size = 0x27f870000
 memory.cnt  = 0x3
 memory[0x0]    [0x00000020400000-0x0000029fc67fff], 0x27f868000 bytes
 memory[0x1]    [0x0000029fd8a000-0x0000029fd8bfff], 0x2000 bytes
 memory[0x2]    [0x0000029fd92000-0x0000029fd97fff], 0x6000 bytes
 reserved.cnt  = 0x2
 reserved[0x0]  [0x00000020800000-0x000000216c15c0], 0xec15c1 bytes
 reserved[0x1]  [0x00000024800000-0x0000002c180c1e], 0x7980c1f bytes
MBLOCK[0]: base[20000000] size[280000000] offset[0]
(note: "base" and "size" reported in "MBLOCK" encompass the "memory[X]" values)
(note: (RA + offset) & mask = val is the formula to detect a match for the
memory controller. should there be no match for find_node node, a return
value of -1 resulted for the node - BAD)

There is one group. It has these forward links
MLGROUP[1]: node[545] latency[1f7e8] match[200000000] mask[200000000]
MLGROUP[2]: node[54d] latency[2de60] match[0] mask[200000000]
NUMA NODE[0]: node[545] mask[200000000] val[200000000] (latency[1f7e8])
(note: "val" is the best lg's (smallest latency) "match")

no LDOM guest - bare metal
MEMBLOCK configuration:
 memory size = 0xfdf2d0000
 memory.cnt  = 0x3
 memory[0x0]    [0x00000020400000-0x00000fff6adfff], 0xfdf2ae000 bytes
 memory[0x1]    [0x00000fff6d2000-0x00000fff6e7fff], 0x16000 bytes
 memory[0x2]    [0x00000fff766000-0x00000fff771fff], 0xc000 bytes
 reserved.cnt  = 0x2
 reserved[0x0]  [0x00000020800000-0x00000021a04580], 0x1204581 bytes
 reserved[0x1]  [0x00000024800000-0x0000002c7d29fc], 0x7fd29fd bytes
MBLOCK[0]: base[20000000] size[fe0000000] offset[0]

there are two groups
group node[16d5]
MLGROUP[0]: node[1765] latency[1f7e8] match[0] mask[200000000]
MLGROUP[3]: node[177d] latency[2de60] match[200000000] mask[200000000]
NUMA NODE[0]: node[1765] mask[200000000] val[0] (latency[1f7e8])
group node[171d]
MLGROUP[2]: node[1775] latency[2de60] match[0] mask[200000000]
MLGROUP[1]: node[176d] latency[1f7e8] match[200000000] mask[200000000]
NUMA NODE[1]: node[176d] mask[200000000] val[200000000] (latency[1f7e8])
(note: for this two "group" bare metal machine, 1/2 memory is in group one's
lg and 1/2 memory is in group two's lg).

Cc: sparclinux@vger.kernel.org
Signed-off-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-16 17:55:09 -07:00
Ezequiel Garcia
971645d1fd drm/tilcdc: panel: Use devm_kzalloc to simplify the error path
Using the managed variant to allocate the resource makes the code simpler
and less error-prone.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:55:05 +10:00
Ezequiel Garcia
e3a9b04621 drm/tilcdc: panel: Spurious whitespace removal
Just a cosmetic cleanup.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:54:59 +10:00
Ezequiel Garcia
75ece7b788 drm/tilcdc: panel: Remove unused variable
Just a trivial cleanup to remove the variable.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:54:53 +10:00
Ezequiel Garcia
9430dfa67d drm/tilcdc: panel: Add missing of_node_put
This commit adds the missing calls to of_node_put to release the node
that's currently held by the of_get_child_by_name() call in the panel
info parsing code.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:54:47 +10:00
Ezequiel Garcia
b478e336b3 drm/tilcdc: Fix the error path in tilcdc_load()
The current error path calls tilcdc_unload() in case of an error to release
the resources. However, this is wrong because not all resources have been
allocated by the time an error occurs in tilcdc_load().

To fix it, this commit adds proper labels to bail out at the different
stages in the load function, and release only the resources actually allocated.

Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Johannes Pointner <johannes.pointner@br-automation.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-17 10:54:33 +10:00
bob picco
4ccb927289 sparc64: sun4v TLB error power off events
We've witnessed a few TLB events causing the machine to power off because
of prom_halt. In one case it was some nfs related area during rmmod. Another
was an mmapper of /dev/mem. A more recent one is an ITLB issue with
a bad pagesize which could be a hardware bug. Bugs happen but we should
attempt to not power off the machine and/or hang it when possible.

This is a DTLB error from an mmapper of /dev/mem:
[root@sparcie ~]# SUN4V-DTLB: Error at TPC[fffff80100903e6c], tl 1
SUN4V-DTLB: TPC<0xfffff80100903e6c>
SUN4V-DTLB: O7[fffff801081979d0]
SUN4V-DTLB: O7<0xfffff801081979d0>
SUN4V-DTLB: vaddr[fffff80100000000] ctx[1250] pte[98000000000f0610] error[2]
.

This is recent mainline for ITLB:
[ 3708.179864] SUN4V-ITLB: TPC<0xfffffc010071cefc>
[ 3708.188866] SUN4V-ITLB: O7[fffffc010071cee8]
[ 3708.197377] SUN4V-ITLB: O7<0xfffffc010071cee8>
[ 3708.206539] SUN4V-ITLB: vaddr[e0003] ctx[1a3c] pte[2900000dcc800eeb] error[4]
.

Normally sun4v_itlb_error_report() and sun4v_dtlb_error_report() would call
prom_halt() and drop us to OF command prompt "ok". This isn't the case for
LDOMs and the machine powers off.

For the HV reported error of HV_ENORADDR for HV HV_MMU_MAP_ADDR_TRAP we cause
a SIGBUS error by qualifying it within do_sparc64_fault() for fault code mask
of FAULT_CODE_BAD_RA. This is done when trap level (%tl) is less or equal
one("1"). Otherwise, for %tl > 1,  we proceed eventually to die_if_kernel().

The logic of this patch was partially inspired by David Miller's feedback.

Power off of large sparc64 machines is painful. Plus die_if_kernel provides
more context. A reset sequence isn't a brief period on large sparc64 but
better than power-off/power-on sequence.

Cc: sparclinux@vger.kernel.org
Signed-off-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-09-16 17:46:44 -07:00
Geert Uytterhoeven
08adafd4a1 ARM: shmobile: Add manufacturer for KZM boards
KZM-A9-Dual and KZM-A9-GT are manufactured by Kyoto Microcomputer Co.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-09-17 09:23:14 +09:00
Geert Uytterhoeven
8237f9e5c3 ARM: shmobile: r8a7740 legacy: Fix copied bug in comment
The corresponding bug in pm-sh7372.c was fixed in commit
70fe7b2467 ("ARM: shmobile: Do not access sh7372 A4S domain
internals directly").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-09-17 09:20:53 +09:00
Dan Carpenter
f9dd0ce67d PCI: xilinx: Fix xilinx_pcie_assign_msi() return value test
We should be testing "hwirq" instead of "irq".  "irq" is unsigned so it's
never less than zero.  Also it's uninitialized.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Srikanth Thokala <sthokal@xilinx.com>
2014-09-16 17:41:52 -06:00
Subhransu S. Prusty
6df5d76805 ASoC: Intel: mrfld: Use snd_soc_dai_get_drvdata to derive drv data
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 16:39:42 -07:00
Mark Brown
94b0955ddd Merge remote-tracking branches 'spi/fix/davinci', 'spi/fix/dw', 'spi/fix/fsl', 'spi/fix/pl022', 'spi/fix/rockchip' and 'spi/fix/sirf' into spi-linus 2014-09-16 16:20:19 -07:00
Filipe Manana
125c4cf9f3 Btrfs: set inode's logged_trans/last_log_commit after ranged fsync
When a ranged fsync finishes if there are still extent maps in the modified
list, still set the inode's logged_trans and last_log_commit. This is important
in case an inode is fsync'ed and unlinked in the same transaction, to ensure its
inode ref gets deleted from the log and the respective dentries in its parent
are deleted too from the log (if the parent directory was fsync'ed in the same
transaction).

Instead make btrfs_inode_in_log() return false if the list of modified extent
maps isn't empty.

This is an incremental on top of the v4 version of the patch:

    "Btrfs: fix fsync data loss after a ranged fsync"

which was added to its v5, but didn't make it on time.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
2014-09-16 16:12:19 -07:00
Fabian Frederick
e306b6ee4d ASoC: cs35l32: remove second linux/slab.h inclusion
linux/slab.h was included twice.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 16:11:02 -07:00
Heiko Stuebner
ee30928ab6 regulator: fan53555: add support for Silergy SYR82x regulators
Silergy SYR82x regulators share the exact same functionality and register layout
as the Fairchild FAN53555 regulators. Therefore extend the driver to add
support for them.

Both types use the same vendor id in their ID1 register, so it's not possible
to distinguish them automatically.

Similarly, the types also do not match. Type 8 used by the SYR827 and SYR828
start at 712.5mV and increment in 12.5mv steps, while the FAN53555 type 8
starts at 600mV and increments in 10mV steps.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 16:09:32 -07:00
Heiko Stuebner
91f23d8fb6 regulator: fan53555: add devicetree support
Add the ability to parse regulator-data from the devicetree.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 16:09:31 -07:00
Heiko Stuebner
ed801b4046 regulator: add devicetree bindings for Fairchild FAN53555 regulators
Document the regulator and add a fairchild vendor-prefix.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16 16:09:27 -07:00
Megan Kamiya
63ddc0b8fe PCI: Parenthesize PCI_DEVID and PCI_VPD_LRDT_ID parameters
Add parentheses around parameters in PCI_DEVID and PCI_VPD_LRDT_ID macros
to prevent possible expansion errors as described by the CERT Secure Coding
Standard: PRE01-C: Use parentheses within macros around parameter names

Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Megan Kamiya <megan.a.kamiya@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 17:09:09 -06:00
Thierry Reding
7f1f054b3f PCI: tegra: Add Tegra124 support
The PCIe controller on Tegra124 has two root ports that can be used in a
x4/x1 or x2/x1 configuration and can run at PCIe 2.0 link speeds (up to
5 GT/s).  The PHY programming has been moved into a separate controller, so
the driver now needs to request an external PHY referenced using the device
tree.

Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 16:55:49 -06:00
Eric Yuen
ec73276204 PCI: tegra: Make sure the PCIe PLL is really reset
Depending on the prior state of the controller, the PLL reset may not be
pulsed.  Clear the register bit and set it after a small delay to ensure
that the PLL is really reset.

Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Eric Yuen <eyuen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 16:55:33 -06:00
Peter Daifuku
8d41794c6f PCI: tegra: Fix extended configuration space mapping
The 16 chunks of 64 KiB that need to be stitched together to make up the
configuration space for one bus (1 MiB) are located 24 bits (== 16 MiB)
apart in physical address space.  This is determined by the start of the
extended register field (bits 24-27) in the physical mapping.

Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 16:55:10 -06:00
Thierry Reding
0d20d62192 PCI: tegra: Clear CLKREQ# enable on port disable
When a root port is disabled, disable the CLKREQ# signal if available.

Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 16:54:05 -06:00
Nikhil Badola
c22b47f03c powerpc: dts: t208x: Change T208x USB controller version
Change USB controller version to 2.5 in compatible string for T2080/T2081

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-09-16 17:39:09 -05:00
Douglas Lehr
9fe373f999 PCI: Increase IBM ipr SAS Crocodile BARs to at least system page size
The Crocodile chip occasionally comes up with 4k and 8k BAR sizes.  Due to
an erratum, setting the SR-IOV page size causes the physical function BARs
to expand to the system page size.  Since ppc64 uses 64k pages, when Linux
tries to assign the smaller resource sizes to the now 64k BARs the address
will be truncated and the BARs will overlap.

Force Linux to allocate the resource as a full page, which avoids the
overlap.

[bhelgaas: print expanded resource, too]
Signed-off-by: Douglas Lehr <dllehr@us.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Milton Miller <miltonm@us.ibm.com>
CC: stable@vger.kernel.org
2014-09-16 16:29:16 -06:00
Thierry Reding
e0d1b6b77c PCI/AER: Make <linux/aer.h> standalone includable
The header file references u16 and u32 types, but they are not defined in
the header nor does the header pull in the necessary includes for them.
This causes build breakage when the file is included without any of the
dependencies being satisfied from somewhere else.

Fix this by including linux/types.h (for u16 and u32).

[bhelgaas: removed pci_dev declaration (already added by 5ccb8225ab)]
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 16:28:34 -06:00
Ethan Zhao
be63497c41 PCI: Use device flag helper functions
Use PCI device flag helper functions when checking whether a device is
assigned.  No functional change.

Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 16:19:58 -06:00
Ethan Zhao
be507fd090 xen/pciback: Use PCI device flag helper functions
Use PCI device flag helper functions when assigning or releasing device.
No functional change.

Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
2014-09-16 16:19:17 -06:00
Ethan Zhao
ad0d217ca6 KVM: Use PCI device flag helper functions
Use PCI device flag helper functions when assigning or releasing device.
No functional change.

Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-16 16:18:40 -06:00
Ethan Zhao
ce0529843a PCI: Add device flag helper functions
Add helper functions to hide direct device flag operations:

    void pci_set_dev_assigned(struct pci_dev *dev);
    void pci_clear_dev_assigned(struct pci_dev *dev);
    bool pci_is_dev_assigned(struct pci_dev *dev);

Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 16:12:27 -06:00
Tony Lindgren
7db143b891 ARM: OMAP3: Fix I/O chain clock line assertion timed out error
We are getting "PRM: I/O chain clock line assertion timed out" errors
on early omaps for device tree based booting. This is because we are
unconditionally calling reconfigure_io_chain while legacy booting
has omap3_has_io_chain_ctrl() checks in place in omap_hwmod.c.

For device tree based booting, we are calling reconfigure_io_chain
unconditionally from pinctrl framework. So we need to add a check for
omap3_has_io_chain_ctrl() to avoid the errors for trying to access
a register that does not exist.

For es3.0, the documentation in "4.11.2 Device Off-Mode Configuration"
just mentions PM_WKEN_WKUP[8] bit. For es3.1, there's a new chapter in
documentation for "4.11.2.2 I/O Wake-Up Mechanism" that describes the
PM_WKEN_WKUP[16] ST_IO_CHAIN bit. So PM_WKEN_WKUP[16] bit did not get
added until in es3.1 probaly to fix issues with flakey wake-up events.

We are doing proper checks for ST_IO_CHAIN already in id.c and with
omap3_has_io_chain_ctrl(). For more information, see also commit
b02b917211 ("ARM: OMAP3: PM: fix I/O wakeup and I/O chain clock
control detection").

Let's fix the issue by selecting the right function during init for
reconfigure_io_chain depending on the omap revision. For es3.0 and
earlier we need to just toggle EN_IO. By doing this, we can move the
check for omap3_has_io_chain_ctrl() from omap_hwmod.c to the init code
in prm_3xxx.c. And then we can unconditionally call reconfigure_io_chain.

Thanks to Paul Walmsley and Nishanth Menon for help with debugging the
issue.

Fixes: 30a69ef785 ("ARM: OMAP: Move DT wake-up event handling over to use pinctrl-single-omap")
Cc: Kevin Hilman <khilman@kernel.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 15:09:44 -07:00
Murali Karicheri
8665a482db PCI: keystone: Set device ID based on SoC to support multiple ports
K2E SoC has two PCI ports.  The SATA controller is connected to second PCI
port (port 1).  To support multiple port handling in Keystone PCI driver,
read the PCI device ID dynamically by iomap/read/unmap during probe and
save it in driver's private data and update it in host init code.  The PCI
device ID field in the RC's config space is not filled by default by the
hardware and has to be updated by the PCI driver by reading the same from
the SoC register indicated by reg index #2 in DT bindings.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-09-16 15:45:46 -06:00
Murali Karicheri
4455efc908 PCI: keystone: Assume controller is already in RC mode
Keystone PCI hardware supports both RC and EP modes and devcfg register has
bits to boot strap the device to either of these modes.  It seems proper to
add this functionality to the boot loader rather than in the driver as
device will be operating in either mode, not both any time.  Currently the
driver supports only RC mode and hence register configuration in the driver
is not needed and the driver can assume the hardware is in RC mode.

Also update the DT documentation accordingly.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-09-16 15:45:45 -06:00
Felipe Balbi
64d5947b9e irqchip: omap-intc: remove unnecessary comments
no fuctional changes.

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:45:01 -07:00
Felipe Balbi
74b6c8ef54 irqchip: omap-intc: correct maximum number or MIR registers
maximum number of MIR register is 4, rather than 3.
Fix that.

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:45:01 -07:00
Felipe Balbi
b30791498a irqchip: omap-intc: enable TURBO idle mode
When TURBO bit is set in the INTC_IDLE register,
the input synchronizer clock will be autogated
based on activity on the INTC.

Because this idle mode increases the interrupt
latency by 2 clock cycles, we're only enabling
it during suspend.

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:45:00 -07:00
Felipe Balbi
9836ee9f87 irqchip: omap-intc: enable IP protection
When PROTECTION bit in enabled in PROTECTION
register, INTC's registers are only accessible
from privileged mode.

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:45:00 -07:00
Felipe Balbi
8bb3b375c8 irqchip: omap-intc: remove unnecesary of_address_to_resource() call
of_iomap(), which is called from omap_init_irq_of(),
already takes care of making sure we have a valid
resource to deal with. Because of that, we can
safely remove our explicit call to of_address_to_resource().

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:45:00 -07:00
Felipe Balbi
503b8d12e7 irqchip: omap-intc: comment style cleanup
no functional changes, just making sure comment
follows Coding Style.

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:44:59 -07:00
Felipe Balbi
6bd0f16e32 irqchip: omap-intc: minor improvement to omap_irq_pending()
We already hold the number of Pending registers
in omap_nr_pending. Let's use that instead.

Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:44:59 -07:00
Felipe Balbi
8598066cdd arm: omap: irq: move irq.c to drivers/irqchip/
Just move the code over as it has no dependencies
on arch/arm/ anymore.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-16 14:44:59 -07:00