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10 years agopinctrl: tegra: add some missing Tegra114 entries
Stephen Warren [Thu, 13 Mar 2014 17:17:42 +0000 (11:17 -0600)]
pinctrl: tegra: add some missing Tegra114 entries

Add some missing pin and drive group definitions to the driver. These
are all defined in the TRM, but missing from the driver for some reason.

Fix a couple of mistakes in the drive group definitions.

Much of the diff to tegra114_groups[] is an indentation change due to one
of the new group names being long. git diff/show -w will highlight this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: tegra: fix some mistakes in Tegra124
Stephen Warren [Wed, 12 Mar 2014 21:35:47 +0000 (15:35 -0600)]
pinctrl: tegra: fix some mistakes in Tegra124

A couple of pairs of pin group names were swapped in the table. This
caused the wrong register to be programmed. Luckily, this had little
effect, if any, since the swapped pins were likely to be programmed
identically.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: fix up out-of-order merge conflict
Linus Walleij [Fri, 14 Mar 2014 06:54:20 +0000 (07:54 +0100)]
pinctrl: msm: fix up out-of-order merge conflict

Commit 051a58b4622f0e1b732acb750097c64bc00ddb93
"pinctrl: msm: Simplify msm_config_reg() and callers"
removed the local "reg" variable in the msm_config_reg()
function, but the earlier
commit ed118a5fd951bd2def8249ee251842c4f81fe4bd
"pinctrl-msm: Support output-{high,low} configuration"
introduced a new switchclause using it.

Fix this up by removing the offending register assignment.

Reported-by: Kbuild test robot <fengguang.wu@intel.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: st: Fix error check for of_irq_to_resource usage
Srinivas Kandagatla [Wed, 12 Mar 2014 13:35:05 +0000 (13:35 +0000)]
pinctrl: st: Fix error check for of_irq_to_resource usage

This patch fixes an error check while using of_irq_to_resource.
of_irq_to_resource returns non-zero interrupt number on success and zero
on error. The driver was using error check is wrong way.

Without this patch the driver will configure interrupt zero if there is
no interrupt specified in the node.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: tegra: consistency cleanup
Stephen Warren [Fri, 7 Mar 2014 19:22:17 +0000 (12:22 -0700)]
pinctrl: tegra: consistency cleanup

Fix Tegra30/114/124 pinmux drivers consistency issues.
* Sort all lists of the same object type (e.g. #defines for pins, and
  the array that defines their names) in the same order.
* Whitespace fixes.
* Consistency in layout between the 3 drivers.

These driver files were also auto-generated, which should allow us to
make e.g. the U-Boot drivers completely consistent with the kernel in
the future:-)

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: tegra: dynamically calculate function list of groups
Stephen Warren [Fri, 7 Mar 2014 19:22:16 +0000 (12:22 -0700)]
pinctrl: tegra: dynamically calculate function list of groups

The per-SoC data structures for Tegra pinctrl stored some information
in a redundant way. Specifically, the list of groups that each function
could be muxed onto was stored once explicitly, and also as part of the
definition of each group. Eliminate this redundancy, and calculate each
function's list of valid groups at pinctrl probe time. This removes
thousands of lines of code from the pinctrl driver and ~16K from the
vmlinux binary size, and adds only about 500uS to the boot process (on
Tegra30; newer SoCs will likely be faster still).

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: tegra: init Tegra20/30 at module_init time
Stephen Warren [Fri, 7 Mar 2014 19:22:15 +0000 (12:22 -0700)]
pinctrl: tegra: init Tegra20/30 at module_init time

The Tegra20/30 pinctrl drivers currently initializes at arch_initcall,
whereas Tegra114/124 pinctrl drivers initialize at module_init time.
Convert Tegra20/30 to work the same way as the other drivers.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: st: Use ARRAY_SIZE instead of raw value for number of delays
Maxime COQUELIN [Wed, 12 Mar 2014 08:50:08 +0000 (09:50 +0100)]
pinctrl: st: Use ARRAY_SIZE instead of raw value for number of delays

This patch replaces the raw values with ARRAY_SIZE for assigning the
ninput_delays and noutput_delays fields of STiH416's st_pctl_data struct.

Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: st: add pinctrl support for the STiH407 SoC
Giuseppe Cavallaro [Wed, 12 Mar 2014 08:50:07 +0000 (09:50 +0100)]
pinctrl: st: add pinctrl support for the STiH407 SoC

This patch adds the initial support for pinctrl based on H407 SoC.

Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: st: Enhance the controller to manage unavailable registers
Giuseppe Cavallaro [Wed, 12 Mar 2014 08:50:06 +0000 (09:50 +0100)]
pinctrl: st: Enhance the controller to manage unavailable registers

This patch adds a new logic inside the st pinctrl to manage
an unsupported scenario: some sysconfig are not available!

This is the case of STiH407 where, although documented, the
following registers from SYSCFG_FLASH have been removed from the SoC.

SYSTEM_CONFIG3040
   Output Enable pad control for all PIO Alternate Functions
and
SYSTEM_ CONFIG3050
   Pull Up pad control for all PIO Alternate Functions

Without managing this condition an imprecise external abort
will be detect.

To do this the patch also reviews the st_parse_syscfgs
and other routines to manipulate the registers only if
actually available.
In any case, for example the st_parse_syscfgs detected
an error condition but no action was made in the
st_pctl_probe_dt.

Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: Simplify msm_config_reg() and callers
Stephen Boyd [Fri, 7 Mar 2014 06:44:46 +0000 (22:44 -0800)]
pinctrl: msm: Simplify msm_config_reg() and callers

We don't need to check for a negative reg here because reg is
always the same and is always non-negative. Also, collapse the
switch statement down for the duplicate cases.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: Remove impossible WARN_ON()s
Stephen Boyd [Fri, 7 Mar 2014 06:44:45 +0000 (22:44 -0800)]
pinctrl: msm: Remove impossible WARN_ON()s

All these functions are limited in what they can pass as the gpio
or irq number to whatever is setup during probe. Remove the
checks.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: Replace lookup tables with math
Stephen Boyd [Fri, 7 Mar 2014 06:44:44 +0000 (22:44 -0800)]
pinctrl: msm: Replace lookup tables with math

We don't need to waste space with these lookup tables, just do
the math directly.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: Drop OF_IRQ dependency
Stephen Boyd [Fri, 7 Mar 2014 06:44:43 +0000 (22:44 -0800)]
pinctrl: msm: Drop OF_IRQ dependency

This driver doesn't rely on any functionality living in
drivers/of/irq.c to compile. Drop this dependency.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: Drop unused includes
Stephen Boyd [Fri, 7 Mar 2014 06:44:42 +0000 (22:44 -0800)]
pinctrl: msm: Drop unused includes

These includes are unused or can be handled via forward
declarations. Remove them.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: Check for ngpios > MAX_NR_GPIO
Stephen Boyd [Fri, 7 Mar 2014 06:44:41 +0000 (22:44 -0800)]
pinctrl: msm: Check for ngpios > MAX_NR_GPIO

Fail the probe and print a warning if SoC specific drivers have
more GPIOs than there can be accounted for in the static bitmaps.
This should avoid silent corruption/failures in the future.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: Silence recursive lockdep warning
Stephen Boyd [Fri, 7 Mar 2014 06:44:40 +0000 (22:44 -0800)]
pinctrl: msm: Silence recursive lockdep warning

If a driver calls enable_irq_wake() on a gpio turned interrupt
from the msm pinctrl driver we'll get a lockdep warning like so:

=============================================
[ INFO: possible recursive locking detected ]
3.14.0-rc3 #2 Not tainted
---------------------------------------------
modprobe/52 is trying to acquire lock:
 (&irq_desc_lock_class){-.....}, at: [<c026aea0>] __irq_get_desc_lock+0x48/0x88

but task is already holding lock:
 (&irq_desc_lock_class){-.....}, at: [<c026aea0>] __irq_get_desc_lock+0x48/0x88

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&irq_desc_lock_class);
  lock(&irq_desc_lock_class);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

4 locks held by modprobe/52:
 #0:  (&__lockdep_no_validate__){......}, at: [<c04f2864>] __driver_attach+0x48/0x98
 #1:  (&__lockdep_no_validate__){......}, at: [<c04f2874>] __driver_attach+0x58/0x98
 #2:  (&irq_desc_lock_class){-.....}, at: [<c026aea0>] __irq_get_desc_lock+0x48/0x88
 #3:  (&(&pctrl->lock)->rlock){......}, at: [<c04bb4b8>] msm_gpio_irq_set_wake+0x20/0xa8

Silence it by putting the gpios into their own lock class.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: mvebu: silence WARN to dev_warn
Sebastian Hesselbarth [Wed, 5 Mar 2014 00:03:10 +0000 (01:03 +0100)]
pinctrl: mvebu: silence WARN to dev_warn

Pinctrl will WARN on missing DT resources, which is a little bit too
noisy. Use dev_warn with FW_BUG instead.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: msm: drop wake_irqs bitmap
Josh Cartwright [Wed, 5 Mar 2014 19:33:08 +0000 (13:33 -0600)]
pinctrl: msm: drop wake_irqs bitmap

Currently, the wake_irqs bitmap is used to track whether there are any
gpio's which are configured as wake irqs, and uses this to determine
whether or not to call enable_irq_wake()/disable_irq_wake() on the
summary interrupt.

However, the genirq core already handles this case, by maintaining a
'wake_count' per irq_desc, and only calling into the controlling
irq_chip when wake_count transitions 0 <-> 1.

Drop this bitmap, and unconditionally call irq_set_irq_wake() on the
summary interrupt.

Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl-baytrail: add function mux checking in gpio pin request
Chew, Kean Ho [Thu, 6 Mar 2014 13:59:49 +0000 (21:59 +0800)]
pinctrl-baytrail: add function mux checking in gpio pin request

The requested gpio pin must has the func_pin_mux field set
to GPIO function by BIOS/FW in advanced. Else, the gpio pin
request would fail. This is to ensure that we do not expose
any gpio pins which shall be used for alternate functions,
for eg: wakeup pin, I/O interfaces for LPSS, etc.

Signed-off-by: Chew, Kean Ho <kean.ho.chew@intel.com>
Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: tegra: fix some typos and inconsistencies
Stephen Warren [Wed, 5 Mar 2014 21:53:32 +0000 (14:53 -0700)]
pinctrl: tegra: fix some typos and inconsistencies

drive_dev3_pins in pinctrl-tegra114.c wasn't used; delete it.

pinctrl-tegra124.c had quite a few typos. Fix those.

pinctrl-tegra124.c had a few mismatches between the *_groups[] ararys
and the function lists in tegra124_groups[]. Fix those.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agodevicetree: bindings: Make msm8974-pinctrl documentation match code
Stephen Boyd [Wed, 26 Feb 2014 19:12:23 +0000 (11:12 -0800)]
devicetree: bindings: Make msm8974-pinctrl documentation match code

The compatible string doesn't have an x in it. Fix it. Also
remove the "qcom" prefix from pins and functions as this binding
uses the generic pinctrl bindings for the pins and functions.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: sh-pfc: r8a7791: Add alternative MSIOF pin groups
Geert Uytterhoeven [Wed, 26 Feb 2014 09:16:57 +0000 (10:16 +0100)]
pinctrl: sh-pfc: r8a7791: Add alternative MSIOF pin groups

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: sh-pfc: r8a7790: Add alternative MSIOF pin groups
Geert Uytterhoeven [Thu, 20 Feb 2014 19:53:40 +0000 (20:53 +0100)]
pinctrl: sh-pfc: r8a7790: Add alternative MSIOF pin groups

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agoMerge branch 'pinctrl-mvebu' into devel
Linus Walleij [Mon, 3 Mar 2014 05:40:22 +0000 (13:40 +0800)]
Merge branch 'pinctrl-mvebu' into devel

10 years agoMerge tag 'mvebu-pinctrl-3.15' of git://git.infradead.org/linux-mvebu into pinctrl...
Linus Walleij [Mon, 3 Mar 2014 05:39:20 +0000 (13:39 +0800)]
Merge tag 'mvebu-pinctrl-3.15' of git://git.infradead.org/linux-mvebu into pinctrl-mvebu

mvebu pinctrl changes for v3.15

 - various cleanup and refactorization
 - add drivers for the Armada 375, 380, and 385 SoCs
 - prepare dove for SoC code moving into mach-mvebu
 - DT documentation updates

10 years agoMerge tag 'tags/for-mvebu-pinctrl-3xx' into mvebu/pinctrl
Jason Cooper [Sat, 1 Mar 2014 07:03:52 +0000 (07:03 +0000)]
Merge tag 'tags/for-mvebu-pinctrl-3xx' into mvebu/pinctrl

Sign for-mvebu/pinctrl-3xx

10 years agoMerge remote-tracking branch 'shesselba/for-mvebu/pinctrl-dove' into mvebu/pinctrl
Jason Cooper [Sat, 1 Mar 2014 07:03:36 +0000 (07:03 +0000)]
Merge remote-tracking branch 'shesselba/for-mvebu/pinctrl-dove' into mvebu/pinctrl

10 years agoMerge tag 'tags/for-mvebu-pinctrl-cleanup' into mvebu/pinctrl
Jason Cooper [Sat, 1 Mar 2014 07:03:00 +0000 (07:03 +0000)]
Merge tag 'tags/for-mvebu-pinctrl-cleanup' into mvebu/pinctrl

Sign for-mvebu/pinctrl-cleanup

10 years agopinctrl: mvebu: dove: use global register regmap
Sebastian Hesselbarth [Sat, 25 Jan 2014 13:14:52 +0000 (14:14 +0100)]
pinctrl: mvebu: dove: use global register regmap

Now that we have a regmap for global registers, get rid of the last
remaining hardcoded physical addresses. While at it, also remove
DOVE_ prefix from those macros.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: mvebu: dove: use remapped pmu_mpp registers
Sebastian Hesselbarth [Fri, 24 Jan 2014 22:36:45 +0000 (23:36 +0100)]
pinctrl: mvebu: dove: use remapped pmu_mpp registers

Now that we have ioremapped pmu_mpp registers, get rid of hardcoded
physical addresses. While at it, also remove DOVE_ prefix from those
macros.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: mvebu: dove: use remapped mpp4 register
Sebastian Hesselbarth [Fri, 24 Jan 2014 22:33:16 +0000 (23:33 +0100)]
pinctrl: mvebu: dove: use remapped mpp4 register

Now that we have an ioremapped mpp4 register, get rid of hardcoded
physical addresses. While at it, also remove DOVE_ prefix from those
macros.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: mvebu: dove: use remapped mpp base registers
Sebastian Hesselbarth [Fri, 24 Jan 2014 22:28:05 +0000 (23:28 +0100)]
pinctrl: mvebu: dove: use remapped mpp base registers

Now that we have ioremapped mpp base registers, get rid of hardcoded
physical addresses. While at it, also remove DOVE_ prefix from those
macros.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: mvebu: dove: request syscon regmap for global registers
Sebastian Hesselbarth [Fri, 24 Jan 2014 23:09:05 +0000 (00:09 +0100)]
pinctrl: mvebu: dove: request syscon regmap for global registers

Dove pinctrl uses some global config registers to control pins.
This patch requests a syscon regmap for those registers. As this
changes DT to driver requirements, fallback to a self-registered
regmap with hardcoded resources, if the corresponding syscon DT
node is missing. Also, WARN about old DT binding usage to encourage
users to update their DTBs.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: mvebu: dove: request additional resources
Sebastian Hesselbarth [Fri, 24 Jan 2014 22:18:09 +0000 (23:18 +0100)]
pinctrl: mvebu: dove: request additional resources

Dove pinctrl also requires additional registers to control all pins.
This patch requests resources for mpp4 and pmu-mpp register ranges.
As this changes DT to driver requirements, fallback to hardcoded
resources, if the corresponding DT regs have not been set.
Also, WARN about old DT binding usage to encourage users to update
their DTBs.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
10 years agodevicetree: bindings: update MVEBU pinctrl binding documentation
Sebastian Hesselbarth [Sat, 25 Jan 2014 15:53:20 +0000 (16:53 +0100)]
devicetree: bindings: update MVEBU pinctrl binding documentation

Dove pinctrl binding now requires three different reg properties. This
updates corresponding binding and example accordingly. While at it, also
document reg property as required for the other MVEBU SoC pinctrl nodes.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agodevicetree: bindings: add missing Marvell Dove SoC documentation
Sebastian Hesselbarth [Sat, 25 Jan 2014 18:09:31 +0000 (19:09 +0100)]
devicetree: bindings: add missing Marvell Dove SoC documentation

Marvell Dove SoC binding was not documented, yet. Add the documentation
and also describe Global Configuration register node in it.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agopinctrl: mvebu: add pin-muxing driver for the Marvell Armada 380/385
Thomas Petazzoni [Mon, 10 Feb 2014 17:04:56 +0000 (18:04 +0100)]
pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 380/385

The Marvell Armada 380/385 are new ARM SoCs from Marvell, part of the
mvebu family, but using a Cortex-A9 CPU core. In terms of pin-muxing,
it is similar to Armada 370 and XP for the register layout, only
different in the number of available pins and their
functions. Therefore, we simply use the existing
drivers/pinctrl/mvebu/ infrastructure, with no other changes that the
list of pins and corresponding functions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agopinctrl: mvebu: add pin-muxing driver for the Marvell Armada 375
Thomas Petazzoni [Mon, 10 Feb 2014 17:04:55 +0000 (18:04 +0100)]
pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 375

The Marvell Armada 375 is a new ARM SoC from Marvell, part of the
mvebu family, but using a Cortex-A9 CPU core. In terms of pin-muxing,
it is similar to Armada 370 and XP for the register layout, only
different in the number of available pins and their
functions. Therefore, we simply use the existing
drivers/pinctrl/mvebu/ infrastructure, with no other changes that the
list of pins and corresponding functions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
10 years agopinctrl: mvebu: dove: reuse mpp_{set,get} in pmu callbacks
Sebastian Hesselbarth [Fri, 31 Jan 2014 01:29:16 +0000 (02:29 +0100)]
pinctrl: mvebu: dove: reuse mpp_{set,get} in pmu callbacks

Dove has pins that can be switched between normal and pmu functions.
Rework pmu_mpp callbacks to reuse default mpp ctrl helpers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agopinctrl: mvebu: dove: consolidate auto-numbered pmu mpp ranges
Sebastian Hesselbarth [Fri, 31 Jan 2014 01:00:33 +0000 (02:00 +0100)]
pinctrl: mvebu: dove: consolidate auto-numbered pmu mpp ranges

Passing a NULL name for pin ranges will auto-generate standard names
for each pin. With common pinctrl driver now checking NULL name correctly,
consolidate mpp pins 0-15.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agopinctrl: mvebu: remove MPP_REG_CTRL macro
Thomas Petazzoni [Thu, 13 Feb 2014 16:11:27 +0000 (17:11 +0100)]
pinctrl: mvebu: remove MPP_REG_CTRL macro

Now that each per-SoC pinctrl driver must implement its own get/set
functions, there is no point in keeping the MPP_REG_CTRL macro, whose
purpose was to let the core pinctrl mvebu driver use default get/set
functions. While at it also update the comment about mvebu_mpp_ctrl.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agopinctrl: mvebu: remove common get/set functions
Sebastian Hesselbarth [Fri, 31 Jan 2014 00:55:48 +0000 (01:55 +0100)]
pinctrl: mvebu: remove common get/set functions

With every SoC always providing its own get/set callbacks, we can now
remove the generic ones, remove the obsolete base address, and always
use the provided callbacks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 years agopinctrl: mvebu: move resource allocation to SoC specific drivers
Sebastian Hesselbarth [Fri, 31 Jan 2014 00:48:48 +0000 (01:48 +0100)]
pinctrl: mvebu: move resource allocation to SoC specific drivers

The way that mvebu pinctrl is designed, requesting mpp registers
in common pinctrl driver does not allow SoC specific drivers to
access this resource.

Move resource allocation in each SoC pinctrl driver and enable
already provided mpp_{set,get} callbacks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 years agopinctrl: mvebu: armada-xp: provide generic mpp callbacks
Sebastian Hesselbarth [Fri, 31 Jan 2014 00:33:45 +0000 (01:33 +0100)]
pinctrl: mvebu: armada-xp: provide generic mpp callbacks

We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 years agopinctrl: mvebu: armada-370: provide generic mpp callbacks
Sebastian Hesselbarth [Fri, 31 Jan 2014 00:33:19 +0000 (01:33 +0100)]
pinctrl: mvebu: armada-370: provide generic mpp callbacks

We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agopinctrl: mvebu: kirkwood: provide generic mpp callbacks
Sebastian Hesselbarth [Fri, 31 Jan 2014 00:32:42 +0000 (01:32 +0100)]
pinctrl: mvebu: kirkwood: provide generic mpp callbacks

We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
10 years agopinctrl: mvebu: dove: provide generic mpp callbacks
Sebastian Hesselbarth [Fri, 31 Jan 2014 00:31:21 +0000 (01:31 +0100)]
pinctrl: mvebu: dove: provide generic mpp callbacks

We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later. While at it, also make use of globally defined
MPP macros.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
10 years agopinctrl: mvebu: add common mpp reg helper to mvebu pinctrl include
Sebastian Hesselbarth [Mon, 27 Jan 2014 21:25:15 +0000 (22:25 +0100)]
pinctrl: mvebu: add common mpp reg helper to mvebu pinctrl include

This adds some defines and helper functions for the common mpp reg
layout to mvebu pinctrl include.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
10 years agopinctrl: mvebu: remove passing mvebu_mpp_ctrl to callbacks
Sebastian Hesselbarth [Thu, 30 Jan 2014 21:25:05 +0000 (22:25 +0100)]
pinctrl: mvebu: remove passing mvebu_mpp_ctrl to callbacks

The only valuable information a special callback can derive from
mvebu_mpp_ctrl passed to it, is the pin id. Instead of passing
the struct, pass the pid directly.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 years agopinctrl: mvebu: identify generic controls by name
Sebastian Hesselbarth [Thu, 30 Jan 2014 23:01:22 +0000 (00:01 +0100)]
pinctrl: mvebu: identify generic controls by name

We treat unnamed controls as generic mvebu mpp register controls but
we identify them by not being special controls. Flip the logic and
use the name pointer as identification instead. While at it, add some
comments explaining the not so obvious treatment.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 years agopinctrl: mvebu: remove obsolete per-control name buffer allocation
Sebastian Hesselbarth [Thu, 30 Jan 2014 22:47:11 +0000 (23:47 +0100)]
pinctrl: mvebu: remove obsolete per-control name buffer allocation

With the introduction of a global name buffer, we can now remove
the allocation and preparation of per-control name buffers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 years agopinctrl: mvebu: count unnamed controls and allocate name buffer
Sebastian Hesselbarth [Thu, 30 Jan 2014 22:38:12 +0000 (23:38 +0100)]
pinctrl: mvebu: count unnamed controls and allocate name buffer

pinctrl-mvebu allows SoCs to pass unnamed controls that will get an
auto-generated name of "mpp<PIN#>". Currently, we are allocating name
buffers on a per-control basis while looping over passed controls.
This counts the total number of unnamed controls and allocates a
global name buffer instead. The new buffer is then used while assigning
controls to pinctrl groups later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 years agopinctrl: pfc: r8a7791: add mux data for IIC(B) cores
Wolfram Sang [Sun, 23 Feb 2014 12:38:12 +0000 (13:38 +0100)]
pinctrl: pfc: r8a7791: add mux data for IIC(B) cores

Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: at91: implement get_direction
Richard Genoud [Mon, 17 Feb 2014 16:57:26 +0000 (17:57 +0100)]
pinctrl: at91: implement get_direction

This is needed for gpiod_get_direction().
Otherwise, it returns -EINVAL.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agoARM: shmobile: r8a7791 dtsi: Fix typo in msiof2 clock output name
Geert Uytterhoeven [Thu, 20 Feb 2014 14:49:29 +0000 (15:49 +0100)]
ARM: shmobile: r8a7791 dtsi: Fix typo in msiof2 clock output name

Introduced in commit cded80f869aef94853e056ab9c21e305b0c26138 ("ARM:
shmobile: r8a7791: Add MSIOF clocks in device tree").

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: imx: Fix pin name in debug message.
Martin Fuzzey [Thu, 20 Feb 2014 14:30:12 +0000 (15:30 +0100)]
pinctrl: imx: Fix pin name in debug message.

The wrong index counter was being used, causing the debug message
to show an incorrect pin name.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl-sunxi: Fix sun5i-a13 port F multiplexing
Hans de Goede [Mon, 17 Feb 2014 21:19:41 +0000 (22:19 +0100)]
pinctrl-sunxi: Fix sun5i-a13 port F multiplexing

The correct value for selecting the mmc0 function on port F pins is 2 not 4,
as per the data-sheet:
http://dl.linux-sunxi.org/A13/A13%20Datasheet%20-%20v1.12%20%282012-03-29%29.pdf

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: pinctrl-adi: combine multiple groups of one function together
Sonic Zhang [Fri, 14 Feb 2014 10:21:06 +0000 (18:21 +0800)]
pinctrl: pinctrl-adi: combine multiple groups of one function together

The data pins of some peripheral are different if connecting to different
devices in one pinmux function. In the PPI case, data pins can be used
in 8, 16 and 24 pin groups individually. Add these groups into one ppi
function.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: sirf: update copyright years to 2014
Barry Song [Wed, 12 Feb 2014 13:54:47 +0000 (21:54 +0800)]
pinctrl: sirf: update copyright years to 2014

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: nomadik: Convert to modern pm_ops
Ulf Hansson [Wed, 12 Feb 2014 12:59:39 +0000 (13:59 +0100)]
pinctrl: nomadik: Convert to modern pm_ops

Use the SIMPLE_DEV_PM_OPS macro and convert to the modern pm ops.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: nomadik: Silence compiler warn for !CONFIG_PM
Ulf Hansson [Wed, 12 Feb 2014 12:59:38 +0000 (13:59 +0100)]
pinctrl: nomadik: Silence compiler warn for !CONFIG_PM

The static suspend/resume functions were not being used while
!CONFIG_PM. Fix it and convert to CONFIG_PM_SLEEP.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: sh-pfc: r8a7790: Add QSPI pin groups
Geert Uytterhoeven [Mon, 10 Feb 2014 13:00:57 +0000 (14:00 +0100)]
pinctrl: sh-pfc: r8a7790: Add QSPI pin groups

A QSPI function set consists of 3 groups:
  - qspi_ctrl (2 control wires)
  - qspi_data2 (2 data wires, for Single/Dual SPI)
  - qspi_data4 (4 data wires, for Quad SPI)

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl-msm: Add SPI8 pin definitions
Ivan T. Ivanov [Thu, 6 Feb 2014 15:28:48 +0000 (17:28 +0200)]
pinctrl-msm: Add SPI8 pin definitions

Add pin, group and function definitions for SPI#8
controller.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: Quiet logging about missing DT nodes when not using DT
Mark Brown [Thu, 30 Jan 2014 18:57:20 +0000 (18:57 +0000)]
pinctrl: Quiet logging about missing DT nodes when not using DT

On systems which were not booted using DT it is entirely unsurprising that
device nodes don't have any DT information and this is going to happen for
every single device in the system. Make pinctrl be less chatty about this
situation by only logging in the case where we have DT.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: sh-pfc: r8a7790: Break out USB0 OVC/VBUS
Magnus Damm [Wed, 29 Jan 2014 23:10:19 +0000 (08:10 +0900)]
pinctrl: sh-pfc: r8a7790: Break out USB0 OVC/VBUS

Create a new group for the USB0 OVC/VBUS pin by itself. This
allows us to monitor PWEN as GPIO on the Lager board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: exynos: add exynos5260 SoC specific data
Young-Gun Jang [Wed, 5 Feb 2014 06:21:28 +0000 (11:51 +0530)]
pinctrl: exynos: add exynos5260 SoC specific data

Adds pinctrl support for all platforms based on EXYNOS5260 SoC.

Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Young-Gun Jang <yg1004.jang@samsung.com>
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl-msm: Support output-{high,low} configuration
Bjorn Andersson [Wed, 5 Feb 2014 03:55:31 +0000 (19:55 -0800)]
pinctrl-msm: Support output-{high,low} configuration

Add support for configuring pins as output with value as from the
pinconf-generic interface.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: sirf: add pin group for USP0 for atlas6
Rongjun Ying [Thu, 30 Jan 2014 05:54:24 +0000 (13:54 +0800)]
pinctrl: sirf: add pin group for USP0 for atlas6

USP0 has multiple functions, and has RX and TX frame sync signals,
for some scenarios like audio PCM, we don't need both of them.
so here we add two possibilities for USP0 only holding one of TX
and RX frame sync.

commit 8385af02bad only added this group for prima2, and missed
atlas6. This patch fixes it.

Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: single: add low power mode support
Chao Xie [Tue, 28 Jan 2014 07:20:44 +0000 (15:20 +0800)]
pinctrl: single: add low power mode support

For some silicons, the pin configuration register can control
the output of the pin when the pad including the pin enter
low power mode.
For example, the pin can be "Drive 1", "Drive 0", "Float" when
the pad including the pin enter low power mode.
It is very useful when you want to control the power leakeage
when the SOC enter low power mode, and can save more power for
the low power mode.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl-adi2: fix coding style issue
Sonic Zhang [Mon, 27 Jan 2014 10:23:56 +0000 (18:23 +0800)]
pinctrl-adi2: fix coding style issue

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl-adi2: change irq_base from usigned int to int
Sonic Zhang [Mon, 27 Jan 2014 10:23:55 +0000 (18:23 +0800)]
pinctrl-adi2: change irq_base from usigned int to int

Negative irq_base means this gpio port doens't support interrupts.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: Move pint PM storage structure out of blackfin architecture.
Sonic Zhang [Mon, 27 Jan 2014 10:23:54 +0000 (18:23 +0800)]
pinctrl: Move pint PM storage structure out of blackfin architecture.

It is better to keep this structure in the pinctrl-adi2 driver.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: at91: use gpiolib API to mark a GPIO used as an IRQ
Jean-Jacques Hiblot [Thu, 23 Jan 2014 10:37:58 +0000 (11:37 +0100)]
pinctrl: at91: use gpiolib API to mark a GPIO used as an IRQ

When an IRQ is started on a GPIO line, mark this GPIO as IRQ in
the gpiolib so we can keep track of the usage centrally.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: sh-pfc: r8a7791: Add QSPI pin groups
Geert Uytterhoeven [Sun, 12 Jan 2014 11:00:30 +0000 (12:00 +0100)]
pinctrl: sh-pfc: r8a7791: Add QSPI pin groups

A QSPI function set consists of 3 groups:
  - qspi_ctrl (2 control wires)
  - qspi_data2 (2 data wires, for Single/Dual SPI)
  - qspi_data4 (4 data wires, for Quad SPI)

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
10 years agopinctrl: st: Add software edge trigger interrupt support
Srinivas Kandagatla [Thu, 16 Jan 2014 15:37:31 +0000 (15:37 +0000)]
pinctrl: st: Add software edge trigger interrupt support

ST pin controller does not have hardware support for detecting edge
triggered interrupts, It only has level triggering support.
This patch attempts to fake up edge triggers from hw level trigger
support in software. With this facility now the gpios can be easily used
for keypads, otherwise it would be difficult for drivers like keypads to
work with level trigger interrupts.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agopinctrl: st: Add Interrupt support
Srinivas Kandagatla [Thu, 16 Jan 2014 15:36:53 +0000 (15:36 +0000)]
pinctrl: st: Add Interrupt support

This patch add interrupt support to the pincontroller driver.

ST Pincontroller GPIO bank can have one of the two possible types of
interrupt-wirings.

First type is via irqmux, single interrupt is used by multiple gpio
banks. This reduces number of overall interrupts numbers required. All
these banks belong to a single pincontroller.
  _________
 |    |----> [gpio-bank (n)    ]
 |    |----> [gpio-bank (n + 1)]
[irqN]-- | irq-mux |----> [gpio-bank (n + 2)]
 |    |----> [gpio-bank (...  )]
 |_________|----> [gpio-bank (n + 7)]

Second type has a dedicated interrupt per gpio bank.

[irqN]----> [gpio-bank (n)]

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
10 years agoLinux 3.14-rc2 v3.14-rc2
Linus Torvalds [Mon, 10 Feb 2014 02:15:47 +0000 (18:15 -0800)]
Linux 3.14-rc2

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Mon, 10 Feb 2014 02:14:53 +0000 (18:14 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security

Pull SELinux fixes from James Morris.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  SELinux:  Fix kernel BUG on empty security contexts.
  selinux: add SOCK_DIAG_BY_FAMILY to the list of netlink message types

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Mon, 10 Feb 2014 02:12:07 +0000 (18:12 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "A couple of fixes, both -stable fodder.  The O_SYNC bug is fairly
  old..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fix a kmap leak in virtio_console
  fix O_SYNC|O_APPEND syncing the wrong range on write()

10 years agoMerge branch 'stable-3.14' of git://git.infradead.org/users/pcmoore/selinux into...
James Morris [Mon, 10 Feb 2014 00:48:21 +0000 (11:48 +1100)]
Merge branch 'stable-3.14' of git://git.infradead.org/users/pcmoore/selinux into for-linus

10 years agofix a kmap leak in virtio_console
Al Viro [Sun, 2 Feb 2014 12:05:05 +0000 (07:05 -0500)]
fix a kmap leak in virtio_console

While we are at it, don't do kmap() under kmap_atomic(), *especially*
for a page we'd allocated with GFP_KERNEL.  It's spelled "page_address",
and had that been more than that, we'd have a real trouble - kmap_high()
can block, and doing that while holding kmap_atomic() is a Bad Idea(tm).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agofix O_SYNC|O_APPEND syncing the wrong range on write()
Al Viro [Sun, 9 Feb 2014 20:18:09 +0000 (15:18 -0500)]
fix O_SYNC|O_APPEND syncing the wrong range on write()

It actually goes back to 2004 ([PATCH] Concurrent O_SYNC write support)
when sync_page_range() had been introduced; generic_file_write{,v}() correctly
synced
pos_after_write - written .. pos_after_write - 1
but generic_file_aio_write() synced
pos_before_write .. pos_before_write + written - 1
instead.  Which is not the same thing with O_APPEND, obviously.
A couple of years later correct variant had been killed off when
everything switched to use of generic_file_aio_write().

All users of generic_file_aio_write() are affected, and the same bug
has been copied into other instances of ->aio_write().

The fix is trivial; the only subtle point is that generic_write_sync()
ought to be inlined to avoid calculations useless for the majority of
calls.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sun, 9 Feb 2014 19:12:26 +0000 (11:12 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "This is a small collection of fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix data corruption when reading/updating compressed extents
  Btrfs: don't loop forever if we can't run because of the tree mod log
  btrfs: reserve no transaction units in btrfs_ioctl_set_features
  btrfs: commit transaction after setting label and features
  Btrfs: fix assert screwup for the pending move stuff

10 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 9 Feb 2014 18:09:49 +0000 (10:09 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Tooling fixes, mostly related to the KASLR fallout, but also other
  fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf buildid-cache: Check relocation when checking for existing kcore
  perf tools: Adjust kallsyms for relocated kernel
  perf tests: No need to set up ref_reloc_sym
  perf symbols: Prevent the use of kcore if the kernel has moved
  perf record: Get ref_reloc_sym from kernel map
  perf machine: Set up ref_reloc_sym in machine__create_kernel_maps()
  perf machine: Add machine__get_kallsyms_filename()
  perf tools: Add kallsyms__get_function_start()
  perf symbols: Fix symbol annotation for relocated kernel
  perf tools: Fix include for non x86 architectures
  perf tools: Fix AAAAARGH64 memory barriers
  perf tools: Demangle kernel and kernel module symbols too
  perf/doc: Remove mention of non-existent set_perf_event_pending() from design.txt

10 years agoBtrfs: fix data corruption when reading/updating compressed extents
Filipe David Borba Manana [Sat, 8 Feb 2014 15:47:46 +0000 (15:47 +0000)]
Btrfs: fix data corruption when reading/updating compressed extents

When using a mix of compressed file extents and prealloc extents, it
is possible to fill a page of a file with random, garbage data from
some unrelated previous use of the page, instead of a sequence of zeroes.

A simple sequence of steps to get into such case, taken from the test
case I made for xfstests, is:

   _scratch_mkfs
   _scratch_mount "-o compress-force=lzo"
   $XFS_IO_PROG -f -c "pwrite -S 0x06 -b 18670 266978 18670" $SCRATCH_MNT/foobar
   $XFS_IO_PROG -c "falloc 26450 665194" $SCRATCH_MNT/foobar
   $XFS_IO_PROG -c "truncate 542872" $SCRATCH_MNT/foobar
   $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/foobar

This results in the following file items in the fs tree:

   item 4 key (257 INODE_ITEM 0) itemoff 15879 itemsize 160
       inode generation 6 transid 6 size 542872 block group 0 mode 100600
   item 5 key (257 INODE_REF 256) itemoff 15863 itemsize 16
       inode ref index 2 namelen 6 name: foobar
   item 6 key (257 EXTENT_DATA 0) itemoff 15810 itemsize 53
       extent data disk byte 0 nr 0 gen 6
       extent data offset 0 nr 24576 ram 266240
       extent compression 0
   item 7 key (257 EXTENT_DATA 24576) itemoff 15757 itemsize 53
       prealloc data disk byte 12849152 nr 241664 gen 6
       prealloc data offset 0 nr 241664
   item 8 key (257 EXTENT_DATA 266240) itemoff 15704 itemsize 53
       extent data disk byte 12845056 nr 4096 gen 6
       extent data offset 0 nr 20480 ram 20480
       extent compression 2
   item 9 key (257 EXTENT_DATA 286720) itemoff 15651 itemsize 53
       prealloc data disk byte 13090816 nr 405504 gen 6
       prealloc data offset 0 nr 258048

The on disk extent at offset 266240 (which corresponds to 1 single disk block),
contains 5 compressed chunks of file data. Each of the first 4 compress 4096
bytes of file data, while the last one only compresses 3024 bytes of file data.
Therefore a read into the file region [285648 ; 286720[ (length = 4096 - 3024 =
1072 bytes) should always return zeroes (our next extent is a prealloc one).

The solution here is the compression code path to zero the remaining (untouched)
bytes of the last page it uncompressed data into, as the information about how
much space the file data consumes in the last page is not known in the upper layer
fs/btrfs/extent_io.c:__do_readpage(). In __do_readpage we were correctly zeroing
the remainder of the page but only if it corresponds to the last page of the inode
and if the inode's size is not a multiple of the page size.

This would cause not only returning random data on reads, but also permanently
storing random data when updating parts of the region that should be zeroed.
For the example above, it means updating a single byte in the region [285648 ; 286720[
would store that byte correctly but also store random data on disk.

A test case for xfstests follows soon.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
10 years agoBtrfs: don't loop forever if we can't run because of the tree mod log
Josef Bacik [Fri, 7 Feb 2014 18:57:59 +0000 (13:57 -0500)]
Btrfs: don't loop forever if we can't run because of the tree mod log

A user reported a 100% cpu hang with my new delayed ref code.  Turns out I
forgot to increase the count check when we can't run a delayed ref because of
the tree mod log.  If we can't run any delayed refs during this there is no
point in continuing to look, and we need to break out.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
10 years agobtrfs: reserve no transaction units in btrfs_ioctl_set_features
David Sterba [Fri, 7 Feb 2014 13:34:04 +0000 (14:34 +0100)]
btrfs: reserve no transaction units in btrfs_ioctl_set_features

Added in patch "btrfs: add ioctls to query/change feature bits online"
modifications to superblock don't need to reserve metadata blocks when
starting a transaction.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
10 years agobtrfs: commit transaction after setting label and features
Jeff Mahoney [Fri, 7 Feb 2014 13:33:57 +0000 (14:33 +0100)]
btrfs: commit transaction after setting label and features

The set_fslabel ioctl uses btrfs_end_transaction, which means it's
possible that the change will be lost if the system crashes, same for
the newly set features. Let's use btrfs_commit_transaction instead.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
10 years agoBtrfs: fix assert screwup for the pending move stuff
Josef Bacik [Wed, 5 Feb 2014 21:19:21 +0000 (16:19 -0500)]
Btrfs: fix assert screwup for the pending move stuff

Wang noticed that he was failing btrfs/030 even though me and Filipe couldn't
reproduce.  Turns out this is because Wang didn't have CONFIG_BTRFS_ASSERT set,
which meant that a key part of Filipe's original patch was not being built in.
This appears to be a mess up with merging Filipe's patch as it does not exist in
his original patch.  Fix this by changing how we make sure del_waiting_dir_move
asserts that it did not error and take the function out of the ifdef check.
This makes btrfs/030 pass with the assert on or off.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Filipe Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
10 years agoMerge tag 'pinctrl-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Sat, 8 Feb 2014 22:31:39 +0000 (14:31 -0800)]
Merge tag 'pinctrl-v3.14-2' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fixes from Linus Walleij:
 "First round of pin control fixes for v3.14:

   - Protect pinctrl_list_add() with the proper mutex.  This was
     identified by RedHat.  Caused nasty locking warnings was rootcased
     by Stanislaw Gruszka.

   - Avoid adding dangerous debugfs files when either half of the
     subsystem is unused: pinmux or pinconf.

   - Various fixes to various drivers: locking, hardware particulars, DT
     parsing, error codes"

* tag 'pinctrl-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: tegra: return correct error type
  pinctrl: do not init debugfs entries for unimplemented functionalities
  pinctrl: protect pinctrl_list add
  pinctrl: sirf: correct the pin index of ac97_pins group
  pinctrl: imx27: fix offset calculation in imx_read_2bit
  pinctrl: vt8500: Change devicetree data parsing
  pinctrl: imx27: fix wrong offset to ICONFB
  pinctrl: at91: use locked variant of irq_set_handler

10 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 8 Feb 2014 20:08:48 +0000 (12:08 -0800)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fix from Thomas Gleixner:
 "Add a missing Kconfig dependency"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Generic irq chip requires IRQ_DOMAIN

10 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 8 Feb 2014 19:54:43 +0000 (11:54 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Peter Anvin:
 "Quite a varied little collection of fixes.  Most of them are
  relatively small or isolated; the biggest one is Mel Gorman's fixes
  for TLB range flushing.

  A couple of AMD-related fixes (including not crashing when given an
  invalid microcode image) and fix a crash when compiled with gcov"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, microcode, AMD: Unify valid container checks
  x86, hweight: Fix BUG when booting with CONFIG_GCOV_PROFILE_ALL=y
  x86/efi: Allow mapping BGRT on x86-32
  x86: Fix the initialization of physnode_map
  x86, cpu hotplug: Fix stack frame warning in check_irq_vectors_for_cpu_disable()
  x86/intel/mid: Fix X86_INTEL_MID dependencies
  arch/x86/mm/srat: Skip NUMA_NO_NODE while parsing SLIT
  mm, x86: Revisit tlb_flushall_shift tuning for page flushes except on IvyBridge
  x86: mm: change tlb_flushall_shift for IvyBridge
  x86/mm: Eliminate redundant page table walk during TLB range flushing
  x86/mm: Clean up inconsistencies when flushing TLB ranges
  mm, x86: Account for TLB flushes only when debugging
  x86/AMD/NB: Fix amd_set_subcaches() parameter type
  x86/quirks: Add workaround for AMD F16h Erratum792
  x86, doc, kconfig: Fix dud URL for Microcode data

10 years agoMerge tag 'jfs-3.14-rc2' of git://github.com/kleikamp/linux-shaggy
Linus Torvalds [Sat, 8 Feb 2014 18:13:47 +0000 (10:13 -0800)]
Merge tag 'jfs-3.14-rc2' of git://github.com/kleikamp/linux-shaggy

Pull jfs fix from David Kleikamp:
 "Fix regression"

* tag 'jfs-3.14-rc2' of git://github.com/kleikamp/linux-shaggy:
  jfs: fix generic posix ACL regression

10 years agojfs: fix generic posix ACL regression
Dave Kleikamp [Fri, 7 Feb 2014 20:36:10 +0000 (14:36 -0600)]
jfs: fix generic posix ACL regression

I missed a couple errors in reviewing the patches converting jfs
to use the generic posix ACL function. Setting ACL's currently
fails with -EOPNOTSUPP.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Reported-by: Michael L. Semon <mlsemon35@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
10 years agowatchdog: dw_wdt: Add dependency on HAS_IOMEM
Richard Weinberger [Fri, 31 Jan 2014 12:47:34 +0000 (13:47 +0100)]
watchdog: dw_wdt: Add dependency on HAS_IOMEM

On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.

drivers/built-in.o: In function `dw_wdt_drv_probe':
drivers/watchdog/dw_wdt.c:302: undefined reference to `devm_ioremap_resource'

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
10 years agoMerge tag 'driver-core-3.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 7 Feb 2014 22:17:18 +0000 (14:17 -0800)]
Merge tag 'driver-core-3.14-rc2' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is a single kernfs fix to resolve a much-reported lockdep issue
  with the removal of entries in sysfs"

* tag 'driver-core-3.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  kernfs: make kernfs_deactivate() honor KERNFS_LOCKDEP flag

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Fri, 7 Feb 2014 20:35:56 +0000 (12:35 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull ceph fixes from Sage Weil:
 "There is an RBD fix for a crash due to the immutable bio changes, an
  error path fix, and a locking fix in the recent redirect support"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: do not dereference a NULL bio pointer
  libceph: take map_sem for read in handle_reply()
  libceph: factor out logic from ceph_osdc_start_request()
  libceph: fix error handling in ceph_osdc_init()

10 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 7 Feb 2014 20:19:50 +0000 (12:19 -0800)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
 - Relax VDSO alignment requirements so that the kernel-picked one (4K)
   does not conflict with the dynamic linker's one (64K)
 - VDSO gettimeofday fix
 - Barrier fixes for atomic operations and cache flushing
 - TLB invalidation when overriding early page mappings during boot
 - Wired up new 32-bit arm (compat) syscalls
 - LSM_MMAP_MIN_ADDR when COMPAT is enabled
 - defconfig update
 - Clean-up (comments, pgd_alloc).

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: defconfig: Expand default enabled features
  arm64: asm: remove redundant "cc" clobbers
  arm64: atomics: fix use of acquire + release for full barrier semantics
  arm64: barriers: allow dsb macro to take option parameter
  security: select correct default LSM_MMAP_MIN_ADDR on arm on arm64
  arm64: compat: Wire up new AArch32 syscalls
  arm64: vdso: update wtm fields for CLOCK_MONOTONIC_COARSE
  arm64: vdso: fix coarse clock handling
  arm64: simplify pgd_alloc
  arm64: fix typo: s/SERRROR/SERROR/
  arm64: Invalidate the TLB when replacing pmd entries during boot
  arm64: Align CMA sizes to PAGE_SIZE
  arm64: add DSB after icache flush in __flush_icache_all()
  arm64: vdso: prevent ld from aligning PT_LOAD segments to 64k

10 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Fri, 7 Feb 2014 20:19:06 +0000 (12:19 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 "hree minor patches.  All have sat in -next for a few days"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: fpu.h: Fix build when CONFIG_BUG is not set
  MIPS: Wire up sched_setattr/sched_getattr syscalls
  MIPS: Alchemy: Fix DB1100 GPIO registration