firefly-linux-kernel-4.4.55.git
9 years agopinctrl: baytrail: Use raw_spinlock for locking
Mika Westerberg [Mon, 17 Aug 2015 13:03:17 +0000 (16:03 +0300)]
pinctrl: baytrail: Use raw_spinlock for locking

The Intel Baytrail pinctrl driver implements irqchip callbacks which are
called with desc->lock raw_spinlock held. In mainline this is fine because
spinlock resolves to raw_spinlock. However, running the same code in -rt we
get:

 BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
 in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0
 Preemption disabled at:[<ffffffff81092e9f>] cpu_startup_entry+0x17f/0x480

 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.5-rt5 #13
  ...
 Call Trace:
  <IRQ>  [<ffffffff816283c6>] dump_stack+0x4a/0x61
  [<ffffffff81077e17>] ___might_sleep+0xe7/0x170
  [<ffffffff8162d6cf>] rt_spin_lock+0x1f/0x50
  [<ffffffff812e3b88>] byt_gpio_clear_triggering+0x38/0x60
  [<ffffffff812e3bc1>] byt_irq_mask+0x11/0x20
  [<ffffffff810a7013>] handle_level_irq+0x83/0x150
  [<ffffffff810a3457>] generic_handle_irq+0x27/0x40
  [<ffffffff812e3a5f>] byt_gpio_irq_handler+0x7f/0xc0
  [<ffffffff810050aa>] handle_irq+0xaa/0x190
  ...

This is because in -rt spinlocks are preemptible so taking the driver
private spinlock in irqchip callbacks causes might_sleep() to trigger.

In order to keep -rt happy but at the same time make sure that register
accesses get serialized, convert the driver to use raw_spinlock instead.

Also shorten the critical section a bit in few places.

Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: imx6ul: Remove .owner field
Fabio Estevam [Thu, 13 Aug 2015 20:20:21 +0000 (17:20 -0300)]
pinctrl: imx6ul: Remove .owner field

platform_driver does not need to set an owner as it will be
populated by the driver core.

The semantic patch that makes this change is available
in scripts/coccinelle/api/platform_no_drv_owner.cocci.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: zynq: Fix typos in smc0_nand_grp and smc0_nor_grp
Mike Looijmans [Wed, 12 Aug 2015 14:22:12 +0000 (16:22 +0200)]
pinctrl: zynq: Fix typos in smc0_nand_grp and smc0_nor_grp

Group names should be smc0_nand_grp and smc0_nor_grp, otherwise you'll
get errors like this if you try to pinmux them via the devicetree:
zynq-pinctrl 700.pinctrl: invalid group "smc0_nand_grp" for function "smc0_nand"

Probably a typo while creating these tables.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sh-pfc: Implement pinconf power-source param for voltage switching
Ben Hutchings [Tue, 30 Jun 2015 16:53:59 +0000 (17:53 +0100)]
pinctrl: sh-pfc: Implement pinconf power-source param for voltage switching

The pfc in the R8A7790 (and probably others in the R-Car gen 2 family)
supports switching SDHI signals between 3.3V and 1.8V nominal voltage,
and the SD driver should do that when switching to and from UHS modes.

Add a flag for pins that have configurable I/O voltage and SoC
operations to get and set the nominal voltage.  Implement the pinconf
power-source parameter using these operations.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoclk: rockchip: add pclk_pd_pmu to the list of rk3288 critical clocks
Heiko Stuebner [Tue, 11 Aug 2015 10:12:03 +0000 (18:12 +0800)]
clk: rockchip: add pclk_pd_pmu to the list of rk3288 critical clocks

pclk_pd_pmu needs to keep running and with the upcoming gpio clock
handling this is not always the case anymore. So add it to the list
of critical clocks for now.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Lin Huang <hl@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sun4i: add spdif to pin description.
Marcus Cooper [Wed, 12 Aug 2015 17:27:48 +0000 (19:27 +0200)]
pinctrl: sun4i: add spdif to pin description.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: atlas7: clear ugly branch statements for pull and drivestrength
Wei Chen [Wed, 5 Aug 2015 03:22:14 +0000 (03:22 +0000)]
pinctrl: atlas7: clear ugly branch statements for pull and drivestrength

To set/get atlas7 pull & drive strength, we use lots of if/else
to check pad type. But except mask value or immediate value, all
actions in these conditional branches are the same.
So we use predefined pull info table and drive strength table
to reduce these redundancy code.

Signed-off-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: baytrail: Serialize all register access
Mika Westerberg [Tue, 4 Aug 2015 12:03:14 +0000 (15:03 +0300)]
pinctrl: baytrail: Serialize all register access

There is a hardware issue in Intel Baytrail where concurrent GPIO register
access might result reads of 0xffffffff and writes might get dropped
completely.

Prevent this from happening by taking the serializing lock in all places
where it is possible that more than one thread might be accessing the
hardware concurrently.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: baytrail: Drop FSF mailing address
Mika Westerberg [Tue, 4 Aug 2015 12:03:13 +0000 (15:03 +0300)]
pinctrl: baytrail: Drop FSF mailing address

The FSF address is already mentioned in the COPYING file. No need to
duplicate that information to individual files.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: rockchip: only enable gpio clock when it setting
Lin Huang [Tue, 11 Aug 2015 10:12:04 +0000 (18:12 +0800)]
pinctrl: rockchip: only enable gpio clock when it setting

gpio can keep state even the clock disable, for save power
consumption, only enable gpio clock when it setting

Signed-off-by: Lin Huang <hl@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl/mediatek: fix spelling mistake in dev_err error message
Colin Ian King [Sun, 2 Aug 2015 23:10:45 +0000 (00:10 +0100)]
pinctrl/mediatek: fix spelling mistake in dev_err error message

Trivial change, fix spelling mistake 'invaild' -> 'invalid' in
dev_err message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: cherryview: Serialize all register access
Mika Westerberg [Mon, 3 Aug 2015 09:46:38 +0000 (12:46 +0300)]
pinctrl: cherryview: Serialize all register access

There is a hardware issue in Intel Braswell/Cherryview where concurrent
GPIO register access might results reads of 0xffffffff and writes might get
dropped.

Prevent this from happening by taking the serializing lock for all places
where it is possible that more than one thread might be accessing the
hardware concurrently.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: PH1-Pro5: add I2C ch6 pin-mux setting
Masahiro Yamada [Sat, 1 Aug 2015 03:38:52 +0000 (12:38 +0900)]
pinctrl: UniPhier: PH1-Pro5: add I2C ch6 pin-mux setting

The initial version of this driver missed to add I2C ch6 pin-muxing.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: reflect current input value
Linus Walleij [Tue, 11 Aug 2015 15:11:29 +0000 (17:11 +0200)]
pinctrl: nomadik: reflect current input value

Let us see the current value on the input line in debugfs.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: join dev_dbg strings into a single line
Masahiro Yamada [Thu, 30 Jul 2015 08:27:44 +0000 (17:27 +0900)]
pinctrl: join dev_dbg strings into a single line

These are user-visible strings, so can exceed 80 columns.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sirf: add power management support for atlas7
Wei Chen [Mon, 27 Jul 2015 11:57:25 +0000 (11:57 +0000)]
pinctrl: sirf: add power management support for atlas7

We had not implemented the pm interface of atlas7 pinctrl
and gpio drivers. So when system resumes from sleep, all
pin configuration and gpio status will be lost.

Now, we implement these interfaces to support pm.

At the same time, this patch also drops a lot of if-else
by look-up table for getting and setting pull.

Signed-off-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: split stn8815 UART0 pin groups
Linus Walleij [Sat, 25 Jul 2015 09:23:12 +0000 (11:23 +0200)]
pinctrl: nomadik: split stn8815 UART0 pin groups

Split the UART pin groups so we can activate RX/TX, CTS/RTS and
the modem pins (DCD, DSR, RI, DTR) as three different groups
with function u0.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoMAINTAINERS: pinctrl: Move Thomas Abraham to CREDITS
Krzysztof Kozlowski [Tue, 28 Jul 2015 08:21:47 +0000 (17:21 +0900)]
MAINTAINERS: pinctrl: Move Thomas Abraham to CREDITS

Thomas Abraham's Linaro email address bounces for several months. Also
there were no replies for several emails sent on LKML to his Samsung
address. Move his name to CREDITS.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: http://lkml.org/lkml/2015/6/15/15
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: kill off set_irq_flags usage
Rob Herring [Mon, 27 Jul 2015 20:55:22 +0000 (15:55 -0500)]
pinctrl: kill off set_irq_flags usage

set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:

IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN

For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed. There appears to be a great deal of
blind copy and paste of this code.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: depromote GPIO to subsystem_init()
Linus Walleij [Wed, 22 Jul 2015 17:21:13 +0000 (19:21 +0200)]
pinctrl: nomadik: depromote GPIO to subsystem_init()

We no longer have to do GPIO initialization before the
pinctrl initialization, instead we can initialize the pinctrl
portions of the driver first and then the GPIO. Thus we can
move GPIO initialization to a subsystem_initcall(), but
not yet to a device_initcall().

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl/ARM: move GPIO and pinctrl deps to device tree
Linus Walleij [Thu, 23 Jul 2015 07:09:49 +0000 (09:09 +0200)]
pinctrl/ARM: move GPIO and pinctrl deps to device tree

This gets the GPIO ranges out of the driver and into the device
tree where they belong. Standard DT bindings already exist for
this. Since no systems with this are deployed we can just augment
all device trees and the drivers at the same time and simplify
the world.

This also defines the array of GPIO chips related to the pin
controller.

Cc: arm@kernel.org
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sunxi: Add custom irq_domain_ops
Maxime Ripard [Mon, 27 Jul 2015 12:41:57 +0000 (14:41 +0200)]
pinctrl: sunxi: Add custom irq_domain_ops

The current interrupt parsing code was working by accident, because the
default was actually parsing the first node of interrupts.

While that was mostly working (and the flags were actually ignored), this
binding has never been documented, and doesn't work with SoCs that have
multiple interrupt banks anyway.

Add a proper interrupt xlate function, that uses the same description than
the GPIOs (<bank> <pin> <flags>), that will make things less confusing.

The EINT number will still be used as the hwirq number, but won't be
exposed through the DT.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: use dev_err() to show message in pinmux_func_name_to_selector()
Masahiro Yamada [Tue, 21 Jul 2015 06:25:27 +0000 (15:25 +0900)]
pinctrl: use dev_err() to show message in pinmux_func_name_to_selector()

Use dev_err() rather than pr_err() to display the error message.

pinctrl_dev_get_name(pctldev) is no longer necessary because
dev_err() shows which device the message is related to.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: use dev_err() to show message in pinctrl_register_one_pin()
Masahiro Yamada [Tue, 21 Jul 2015 06:25:26 +0000 (15:25 +0900)]
pinctrl: use dev_err() to show message in pinctrl_register_one_pin()

Use dev_err() rather than pr_err() to display the error message.
(Besides, dev_err() is already used 7 lines below in this function.)

Also, drop the redundant information "on %s" because dev_err() shows
which device the message is related to.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sunxi: Add irq_chip name
Maxime Ripard [Mon, 20 Jul 2015 12:41:12 +0000 (14:41 +0200)]
pinctrl: sunxi: Add irq_chip name

In order to ease the debugging, add a name to the irq_chips.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sunxi: Use common functions to change irq_chip and handler
Maxime Ripard [Mon, 20 Jul 2015 12:41:11 +0000 (14:41 +0200)]
pinctrl: sunxi: Use common functions to change irq_chip and handler

The current code uses some custom variable affectations, while we have
common functions to do exactly that. Move to the common functions.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: driver for Conexant Digicolor CX92755 pin mapping
Baruch Siach [Tue, 5 May 2015 10:55:10 +0000 (13:55 +0300)]
pinctrl: driver for Conexant Digicolor CX92755 pin mapping

This adds pinctrl and gpio driver to the CX92755 SoC "General
Purpose Pin Mapping" hardware block. The CX92755 is one SoC
from the Conexant Digicolor series. Pin mapping hardware supports
configuring pins as either GPIO, or up to 3 other "client select"
functions. This driver adds support for pin muxing using the
generic device tree binding, and a basic gpiolib driver for
the GPIO functionality.

This driver does not currently support GPIO interrupts, and
pad configuration.

v2:
* Address review comments for Linus Walleij:
  - Add a pointer to pinctrl_desc in struct dc_pinmap
  - Drop the now redundant pinctrl_pin_desc field
  - Adapt dc_get_group_{name,pins} to these changes, and
    add a comment explaining the 1-to-1 pin-groups relation
* Staticise dc_pmxops
* Protect the GP_CLIENTSEL clct parameter with parenthesis

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: dt-binding: document Conexant CX92755 SoC
Baruch Siach [Tue, 5 May 2015 10:55:09 +0000 (13:55 +0300)]
pinctrl: dt-binding: document Conexant CX92755 SoC

Add pinctrl device tree binding documentation for the General Purpose Pin
Mapping module of the Conexant CX92755 SoC.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: assure GPIO chips are populated
Linus Walleij [Wed, 17 Jun 2015 21:10:21 +0000 (23:10 +0200)]
pinctrl: nomadik: assure GPIO chips are populated

If the pin controller probes before the GPIO driver it needs to
populate the GPIO driver state containers ahead of the actual
driver probe as the addresses are used by both halves of the
driver.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: find chip from local array
Linus Walleij [Wed, 17 Jun 2015 14:05:47 +0000 (16:05 +0200)]
pinctrl: nomadik: find chip from local array

Instead of indexing around the GPIO ranges to find a chip, look directly
in the local array of state containers for nmk_gpio_chip:s.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: nomadik: break out state container allocator
Linus Walleij [Wed, 17 Jun 2015 13:45:41 +0000 (15:45 +0200)]
pinctrl: nomadik: break out state container allocator

Break out the function that allocates the nomadik GPIO chip state
container to its own function.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: pinconf: pinconf_show_config() can be static
kbuild test robot [Fri, 17 Jul 2015 13:37:09 +0000 (21:37 +0800)]
pinctrl: pinconf: pinconf_show_config() can be static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl/sunxi: Prepare sunxi_pinctrl_irq_handler for irq argument removal
Thomas Gleixner [Sun, 12 Jul 2015 23:55:27 +0000 (01:55 +0200)]
pinctrl/sunxi: Prepare sunxi_pinctrl_irq_handler for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/sirf: Prepare xxx_gpio-handle_irq for irq argument removal
Thomas Gleixner [Sun, 12 Jul 2015 23:54:35 +0000 (01:54 +0200)]
pinctrl/sirf: Prepare xxx_gpio-handle_irq for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/qcom/msm: Prepare msm_gpio_irq_handler for irq argument removal
Thomas Gleixner [Sun, 12 Jul 2015 23:53:06 +0000 (01:53 +0200)]
pinctrl/qcom/msm: Prepare msm_gpio_irq_handler for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/rockchip: Prepare rockchip_irq_demux for irq argument removal
Thomas Gleixner [Sun, 12 Jul 2015 23:52:00 +0000 (01:52 +0200)]
pinctrl/rockchip: Prepare rockchip_irq_demux for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/pistachio: Prepare pistachio_gpio_irq_handler for irq argument removal
Thomas Gleixner [Sun, 12 Jul 2015 23:50:50 +0000 (01:50 +0200)]
pinctrl/pistachio: Prepare pistachio_gpio_irq_handler for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/coh901: Prepare u300_gpio_irq_handler for irq argument removal
Thomas Gleixner [Sun, 12 Jul 2015 23:50:02 +0000 (01:50 +0200)]
pinctrl/coh901: Prepare u300_gpio_irq_handler for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/amd: Prepare amd_gpio_irq_handler for irq argument removal
Thomas Gleixner [Sun, 12 Jul 2015 23:48:51 +0000 (01:48 +0200)]
pinctrl/amd: Prepare amd_gpio_irq_handler for irq argument removal

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
Jiang Liu [Thu, 4 Jun 2015 04:13:16 +0000 (12:13 +0800)]
pinctrl: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
9 years agopinctrl/samsung: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:57 +0000 (15:52 +0200)]
pinctrl/samsung: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/exynos: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:57 +0000 (15:52 +0200)]
pinctrl/exynos: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/qcom: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:51 +0000 (15:52 +0200)]
pinctrl/qcom: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/rockchip: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:50 +0000 (15:52 +0200)]
pinctrl/rockchip: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/at91: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:49 +0000 (15:52 +0200)]
pinctrl/at91: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/amd: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:47 +0000 (15:52 +0200)]
pinctrl/amd: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/adi2: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:47 +0000 (15:52 +0200)]
pinctrl/adi2: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and update was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/intel: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:45 +0000 (15:52 +0200)]
pinctrl/intel: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/cherryview: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:44 +0000 (15:52 +0200)]
pinctrl/cherryview: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/baytrail: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:44 +0000 (15:52 +0200)]
pinctrl/baytrail: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/bcm2835: Use irq_set_handler_locked()
Thomas Gleixner [Tue, 23 Jun 2015 13:52:41 +0000 (15:52 +0200)]
pinctrl/bcm2835: Use irq_set_handler_locked()

Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.

Search and replacement was done with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/exynos: Consolidate chained IRQ handler install/remove
Thomas Gleixner [Sun, 21 Jun 2015 19:11:07 +0000 (21:11 +0200)]
pinctrl/exynos: Consolidate chained IRQ handler install/remove

Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.

Search and conversion was done with coccinelle.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl: Consolidate chained IRQ handler install/remove
Thomas Gleixner [Sun, 21 Jun 2015 19:11:06 +0000 (21:11 +0200)]
pinctrl: Consolidate chained IRQ handler install/remove

Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.

Search and conversion was done with coccinelle.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl/rockchip: Consolidate chained IRQ handler install/remove
Thomas Gleixner [Sun, 21 Jun 2015 19:11:06 +0000 (21:11 +0200)]
pinctrl/rockchip: Consolidate chained IRQ handler install/remove

Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.

Search and conversion was done with coccinelle.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
9 years agopinctrl: add support for Qualcomm Technologies QDF2xxx ARM64 SoCs
Timur Tabi [Wed, 15 Jul 2015 16:47:14 +0000 (11:47 -0500)]
pinctrl: add support for Qualcomm Technologies QDF2xxx ARM64 SoCs

Add the pinctrl driver for the Qualcomm Technologies QDF2xxx ARM64 SoCs,
which uses the Qualcomm Technologies TLMM pinctrl/gpio device.  This
driver is probed via ACPI and uses the pinctrl-msm.c backend driver.

This driver is intended to be used only an ACPI-enabled system.  As such,
UEFI will handle all pin control configuration, so this driver does not
provide pin control functions.  It is effectively a GPIO-only driver.

Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: ssbi: Family A gpio & mpp drivers
Bjorn Andersson [Wed, 15 Jul 2015 06:40:35 +0000 (23:40 -0700)]
pinctrl: qcom: ssbi: Family A gpio & mpp drivers

This introduces pinctrl drivers for gpio and mpp blocks found in family A
PMICs.

Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: spmi-mpp: Transpose pinmux function
Bjorn Andersson [Thu, 18 Jun 2015 06:47:30 +0000 (23:47 -0700)]
pinctrl: qcom: spmi-mpp: Transpose pinmux function

The "function" of the MPP driver was inherited from the GPIO driver, but the
differences between the two hardware blocks makes both the driver and the
device tree binding to be awkward.

Instead of overloading the "normal" function with various modes this patch
transposes the pinmux function to represent the three operating modes of the
MPP (digital, analog and current sink). The properties of pin pairing and DTEST
routing is moved to separate properties.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: spmi-mpp: Add support for setting analog output level
Bjorn Andersson [Wed, 15 Jul 2015 06:40:33 +0000 (23:40 -0700)]
pinctrl: qcom: spmi-mpp: Add support for setting analog output level

When the MPP is configured for analog output the output level is selected by
the AOUT_CTL register, this patch makes it possible to control this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: lpc18xx: add support for usb1 pinconf
Joachim Eastwood [Tue, 14 Jul 2015 22:25:27 +0000 (00:25 +0200)]
pinctrl: lpc18xx: add support for usb1 pinconf

The dedicated USB1 pins can be configured with pull-down and
for low power mode (suspend). Add support for this in the
pinctrl driver.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: pinconf: Fix display of configs
Jon Hunter [Tue, 14 Jul 2015 10:17:59 +0000 (11:17 +0100)]
pinctrl: pinconf: Fix display of configs

The function pinconf_dbg_config_print() only prints the configuration of
the 1st pin config in an array of pin configurations. Fix this so that
all pin configurations in the array are displayed.

There are a few places in the code where the pin configs are displayed
and so add a helper function to display the pin configs to simplify the
code.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: pinconf: Allow groups to be configured via debugfs
Jon Hunter [Tue, 14 Jul 2015 10:17:58 +0000 (11:17 +0100)]
pinctrl: pinconf: Allow groups to be configured via debugfs

The function pinconf_dbg_config_write() currently only supports configuring
a pin configuration mapping via the debugfs. Allow group mappings to also
be configured via the debugfs.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: Hook pm_power_down for shutdown support
Stephen Boyd [Tue, 7 Jul 2015 01:09:30 +0000 (18:09 -0700)]
pinctrl: qcom: Hook pm_power_down for shutdown support

Assign pm_power_off() if we have the PS_HOLD functionality so
that we can properly shutdown the SoC. Otherwise, shutdown won't
do anything besides put the CPU into a tight loop. Unfortunately,
we have to use a singleton here because pm_power_off() doesn't
take any arguments. Fortunately there's only one instance of the
pinctrl device on a running system so this isn't a problem.

Cc: Pramod Gurav <pramod.gurav@smartplayin.com>
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>
9 years agopinctrl: sirf: Drop owner assignment from platform_driver
Krzysztof Kozlowski [Fri, 10 Jul 2015 06:27:30 +0000 (15:27 +0900)]
pinctrl: sirf: Drop owner assignment from platform_driver

platform_driver does not need to set an owner because
platform_driver_register() will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: single: dra7: remove PCS_QUIRK_SHARED_IRQ
Grygorii Strashko [Mon, 6 Jul 2015 15:11:50 +0000 (18:11 +0300)]
pinctrl: single: dra7: remove PCS_QUIRK_SHARED_IRQ

On DRA7 there is one pinctrl domain (dra7_pmx_core) and
PRCM wake-up IRQ is not shared, so remove quirk.

Cc: Nishanth Menon <nm@ti.com>
Fixes: 31320beaa3d3 ('pinctrl: single: Add DRA7 pinctrl compatibility')
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sh-pfc: Remove obsolete r8a7740 platform_device_id entry
Geert Uytterhoeven [Tue, 14 Jul 2015 11:56:55 +0000 (13:56 +0200)]
pinctrl: sh-pfc: Remove obsolete r8a7740 platform_device_id entry

Since the removal of the r8a7740 legacy SoC code in commit
44d88c754e57a6d9 ("ARM: shmobile: Remove legacy SoC code for R-Mobile
A1"), r8a7740 is only supported in generic DT-only ARM multi-platform
builds.  The driver doesn't need to match platform devices by name
anymore, hence remove the corresponding platform_device_id entry.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sh-pfc: r8a7740: Remove obsolete multi-platform check
Geert Uytterhoeven [Tue, 14 Jul 2015 11:56:54 +0000 (13:56 +0200)]
pinctrl: sh-pfc: r8a7740: Remove obsolete multi-platform check

Since the removal of the r8a7740 legacy SoC code in commit
44d88c754e57a6d9 ("ARM: shmobile: Remove legacy SoC code for R-Mobile
A1"), r8a7740 is only supported in generic ARM multi-platform builds.
Hence CONFIG_ARCH_MULTIPLATFORM is always set, and the check can be
removed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sh-pfc: Remove obsolete sh73a0 platform_device_id entry
Geert Uytterhoeven [Tue, 14 Jul 2015 11:56:53 +0000 (13:56 +0200)]
pinctrl: sh-pfc: Remove obsolete sh73a0 platform_device_id entry

Since the removal of the sh73a0 legacy SoC code in commit
9a9863987bf7307f ("ARM: shmobile: Remove legacy SoC code for SH-Mobile
AG5"), sh73a0 is only supported in generic DT-only ARM multi-platform
builds.  The driver doesn't need to match platform devices by name
anymore, hence remove the corresponding platform_device_id entry.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sh-pfc: sh73a0: Remove obsolete multi-platform check
Geert Uytterhoeven [Tue, 14 Jul 2015 11:56:52 +0000 (13:56 +0200)]
pinctrl: sh-pfc: sh73a0: Remove obsolete multi-platform check

Since the removal of the sh73a0 legacy SoC code in commit
9a9863987bf7307f ("ARM: shmobile: Remove legacy SoC code for SH-Mobile
AG5"), sh73a0 is only supported in generic ARM multi-platform builds.
Hence CONFIG_ARCH_MULTIPLATFORM is always set, and the check can be
removed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sh-pfc: Convert to platform_get_*()
Geert Uytterhoeven [Thu, 25 Jun 2015 09:39:53 +0000 (11:39 +0200)]
pinctrl: sh-pfc: Convert to platform_get_*()

If the pin function controller (which can be a GPIO controller) is
instantiated before the interrupt controllers, due to the ordering in
the DTS, the irq domains for the interrupt controllers referenced by its
"interrupts-extended" property cannot be found yet:

    irq: no irq domain found for /interrupt-controller@e61c0000 !

As the sh-pfc driver accesses the platform device's resources directly,
it cannot find the (optional) IRQ resources, and thinks no interrupts
are available. This may lead to failures later, when GPIOs are used as
interupts:

    gpio-keys keyboard: Unable to claim irq 0; error -22
    gpio-keys: probe of keyboard failed with error -22

To fix this, add support for deferred probing to sh-pfc, by converting
the driver from direct platform device resource access to using the
platform_get_resource() and platform_get_irq() helpers.

Note that while this fixes the root cause worked around by commit
e4ba0a9bddff3ba5 ("ARM: shmobile: r8a73a4: Move pfc node to work around
probe ordering bug"), I strongly recommend against reverting the
workaround now, as this would lead to lots of probe deferrals in drivers
relying on pinctrl. This may be reconsidered once the DT code starts
taking into account phandle dependencies during device instantation.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: sh-pfc: Accept standard function, pins and groups properties
Laurent Pinchart [Tue, 30 Jun 2015 08:29:57 +0000 (11:29 +0300)]
pinctrl: sh-pfc: Accept standard function, pins and groups properties

The "function", "pins" and "groups" pinmux and pinctrl properties have
been standardized. Support them in addition to the custom "renesas,*"
properties. New-style and old-style properties can't be mixed in DT.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: samsung: remove "out of memory" messages
Dan Carpenter [Mon, 22 Jun 2015 15:13:15 +0000 (18:13 +0300)]
pinctrl: samsung: remove "out of memory" messages

Checkpatch.pl complains about these:

WARNING: Possible unnecessary 'out of memory' message

The messages use a little extra RAM and they add a few extra lines of
code.  We're probably never going to hit these out of memory situations
but if we did then kmalloc() has pretty good error messages built-in.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: samsung: don't truncate the last char
Dan Carpenter [Mon, 22 Jun 2015 15:12:24 +0000 (18:12 +0300)]
pinctrl: samsung: don't truncate the last char

We were allocating enough space because sizeof("-grp") and
sizeof("-mux") are both equal to 5 but in the snprintf() we only allowed
for 4 characters so the last 'p' and 'x' characters were truncated.

The allocate and sprintf can be done in one step with the kasprintf().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: move CONFIG_PINCTRL to drivers/Makefile
Masahiro Yamada [Thu, 9 Jul 2015 01:55:01 +0000 (10:55 +0900)]
pinctrl: move CONFIG_PINCTRL to drivers/Makefile

Kbuild should descend into drivers/pinctrl/ only when CONFIG_PINCTRL
is enabled because everything under that directory depends on
CONFIG_PINCTRL.

We can avoid the conditional, ifeq ($(CONFIG_OF),y) ... endif.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: add UniPhier PH1-LD6b pinctrl driver
Masahiro Yamada [Tue, 14 Jul 2015 02:40:07 +0000 (11:40 +0900)]
pinctrl: UniPhier: add UniPhier PH1-LD6b pinctrl driver

Add pin configuration and pinmux support for UniPhier PH1-LD6b SoC.

Changes in v2:
  - sort groups and funcs alphabetically
  - add i2c pin-mux settings
  - sort members of platform_driver
  - change to tristate
  - add THIS_MODULE to pinctrl_desc
  - use module_platform_driver

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: add UniPhier ProXstream2 pinctrl driver
Masahiro Yamada [Tue, 14 Jul 2015 02:40:06 +0000 (11:40 +0900)]
pinctrl: UniPhier: add UniPhier ProXstream2 pinctrl driver

Add pin configuration and pinmux support for UniPhier ProXstream2
SoC.

Changes in v2:
  - sort groups and funcs alphabetically
  - add i2c pin-mux settings
  - sort members of platform_driver
  - change to tristate
  - add THIS_MODULE to pinctrl_desc
  - use module_platform_driver

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: add UniPhier PH1-Pro5 pinctrl driver
Masahiro Yamada [Tue, 14 Jul 2015 02:40:05 +0000 (11:40 +0900)]
pinctrl: UniPhier: add UniPhier PH1-Pro5 pinctrl driver

Add pin configuration and pinmux support for UniPhier PH1-Pro5 SoC.

Changes in v2:
  - sort groups and funcs alphabetically
  - add i2c pin-mux settings
  - sort members of platform_driver
  - change to tristate
  - add THIS_MODULE to pinctrl_desc
  - use module_platform_driver

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: add UniPhier PH1-sLD8 pinctrl driver
Masahiro Yamada [Tue, 14 Jul 2015 02:40:04 +0000 (11:40 +0900)]
pinctrl: UniPhier: add UniPhier PH1-sLD8 pinctrl driver

Add pin configuration and pinmux support for UniPhier PH1-sLD8 SoC.

Changes in v2:
  - sort groups and funcs alphabetically
  - add i2c pin-mux settings
  - sort members of platform_driver
  - change to tristate
  - add THIS_MODULE to pinctrl_desc
  - use module_platform_driver

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: add UniPhier PH1-Pro4 pinctrl driver
Masahiro Yamada [Tue, 14 Jul 2015 02:40:03 +0000 (11:40 +0900)]
pinctrl: UniPhier: add UniPhier PH1-Pro4 pinctrl driver

Add pin configuration and pinmux support for UniPhier PH1-Pro4 SoC.

Changes in v2:
  - sort groups and funcs alphabetically
  - add i2c pin-mux settings
  - sort members of platform_driver
  - change to tristate
  - add THIS_MODULE to pinctrl_desc
  - use module_platform_driver

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: add UniPhier PH1-LD4 pinctrl driver
Masahiro Yamada [Tue, 14 Jul 2015 02:40:02 +0000 (11:40 +0900)]
pinctrl: UniPhier: add UniPhier PH1-LD4 pinctrl driver

Add pin configuration and pinmux support for UniPhier PH1-LD4 SoC.

Changes in v2:
  - sort groups and funcs alphabetically
  - add missing "emmc_dat8" group
  - add i2c pin-mux settings
  - sort members of platform_driver
  - change to tristate
  - add THIS_MODULE to pinctrl_desc
  - use module_platform_driver

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: UniPhier: add UniPhier pinctrl core support
Masahiro Yamada [Tue, 14 Jul 2015 02:40:01 +0000 (11:40 +0900)]
pinctrl: UniPhier: add UniPhier pinctrl core support

The core support for the pinctrl drivers for all the UniPhier SoCs.

Changes in v2:
  - drop vogus THIS_MODULE because this file is always built-in
  - drop vogus "include <linux/module.h> because this file is
    always built-in

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: spmi-mpp: Implement support for sink mode
Bjorn Andersson [Thu, 18 Jun 2015 06:47:28 +0000 (23:47 -0700)]
pinctrl: qcom: spmi-mpp: Implement support for sink mode

The MPP supports three modes; digital, analog and sink mode. This patch
implements support for the latter.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: spmi-mpp: Introduce defines for MODE_CTL
Bjorn Andersson [Thu, 18 Jun 2015 06:47:27 +0000 (23:47 -0700)]
pinctrl: qcom: spmi-mpp: Introduce defines for MODE_CTL

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: spmi-mpp: Fixes related to enable handling
Bjorn Andersson [Thu, 18 Jun 2015 06:47:26 +0000 (23:47 -0700)]
pinctrl: qcom: spmi-mpp: Fixes related to enable handling

There's currently no way to re-enable a mpp block once you've entered a state
that disables the state, this patch makes it possible to leave the
bias-high-impedance state.

Also read the enable state from the hardware on probe.

With this in place the is_enabled variable is accurately tracking the state of
the hardware and we can use that for the debug output as well.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: qcom: spmi-mpp: Transition to generic dt binding parser
Bjorn Andersson [Thu, 18 Jun 2015 06:47:25 +0000 (23:47 -0700)]
pinctrl: qcom: spmi-mpp: Transition to generic dt binding parser

Use the newly introduced extensible generic dt parser instead of rolling
our own dt parsing functions.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: simplify of_pinctrl_get()
Masahiro Yamada [Thu, 18 Jun 2015 05:42:45 +0000 (14:42 +0900)]
pinctrl: simplify of_pinctrl_get()

This commit does not change the logic at all.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: imx: add i.mx6ul subdriver
Frank Li [Fri, 19 Jun 2015 15:32:27 +0000 (23:32 +0800)]
pinctrl: imx: add i.mx6ul subdriver

Add i.MX6UL pinctrl driver support.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agosh-pfc: r8a7791: remove non-existing GPIO pins
Laurent Pinchart [Thu, 25 Jun 2015 22:43:07 +0000 (01:43 +0300)]
sh-pfc: r8a7791: remove non-existing GPIO pins

GPIO banks 1 and 7 are missing pins 26 to 31. Remove them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agosh-pfc: r8a7790: remove non-existing GPIO pins
Laurent Pinchart [Thu, 25 Jun 2015 22:42:04 +0000 (01:42 +0300)]
sh-pfc: r8a7790: remove non-existing GPIO pins

GPIO banks 1 and 2 are missing pins 30 and 31. Remove them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoadded tabs instead of spaces
Mario Bambagini [Tue, 16 Jun 2015 20:32:30 +0000 (22:32 +0200)]
added tabs instead of spaces

Tabs have been inserted instead of spaces to indent the code
correctly. Same error fixed four times.

Signed-off-by: Mario Bambagini <mario.bambagini@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoLinux 4.2-rc2
Linus Torvalds [Sun, 12 Jul 2015 22:10:30 +0000 (15:10 -0700)]
Linux 4.2-rc2

9 years agoRevert "drm/i915: Use crtc_state->active in primary check_plane func"
Linus Torvalds [Sun, 12 Jul 2015 22:00:20 +0000 (15:00 -0700)]
Revert "drm/i915: Use crtc_state->active in primary check_plane func"

This reverts commit dec4f799d0a4c9edae20512fa60b0a36f3299ca2.

Jörg Otte reports a NULL pointder dereference due to this commit, as
'crtc_state' very much can be NULL:

        crtc_state = state->base.state ?
                intel_atomic_get_crtc_state(state->base.state, intel_crtc) : NULL;

So the change to test 'crtc_state->base.active' cannot possibly be
correct as-is.

There may be some other minimal fix (like just checking crtc_state for
NULL), but I'm just reverting it now for the rc2 release, and people
like Daniel Vetter who actually know this code will figure out what the
right solution is in the longer term.

Reported-and-bisected-by: Jörg Otte <jrg.otte@gmail.com>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
CC: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 12 Jul 2015 21:09:36 +0000 (14:09 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull VFS fixes from Al Viro:
 "Fixes for this cycle regression in overlayfs and a couple of
  long-standing (== all the way back to 2.6.12, at least) bugs"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  freeing unlinked file indefinitely delayed
  fix a braino in ovl_d_select_inode()
  9p: don't leave a half-initialized inode sitting around

9 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sun, 12 Jul 2015 20:55:24 +0000 (13:55 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS fixes from Ralf Baechle:
 "A fair number of 4.2 fixes also because Markos opened the flood gates.

   - Patch up the math used calculate the location for the page bitmap.

   - The FDC (Not what you think, FDC stands for Fast Debug Channel) IRQ
     around was causing issues on non-Malta platforms, so move the code
     to a Malta specific location.

   - A spelling fix replicated through several files.

   - Fix to the emulation of an R2 instruction for R6 cores.

   - Fix the JR emulation for R6.

   - Further patching of mindless 64 bit issues.

   - Ensure the kernel won't crash on CPUs with L2 caches with >= 8
     ways.

   - Use compat_sys_getsockopt for O32 ABI on 64 bit kernels.

   - Fix cache flushing for multithreaded cores.

   - A build fix"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: O32: Use compat_sys_getsockopt.
  MIPS: c-r4k: Extend way_string array
  MIPS: Pistachio: Support CDMM & Fast Debug Channel
  MIPS: Malta: Make GIC FDC IRQ workaround Malta specific
  MIPS: c-r4k: Fix cache flushing for MT cores
  Revert "MIPS: Kconfig: Disable SMP/CPS for 64-bit"
  MIPS: cps-vec: Use macros for various arithmetics and memory operations
  MIPS: kernel: cps-vec: Replace KSEG0 with CKSEG0
  MIPS: kernel: cps-vec: Use ta0-ta3 pseudo-registers for 64-bit
  MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
  MIPS: kernel: cps-vec: Replace 'la' macro with PTR_LA
  MIPS: kernel: smp-cps: Fix 64-bit compatibility errors due to pointer casting
  MIPS: Fix erroneous JR emulation for MIPS R6
  MIPS: Fix branch emulation for BLTC and BGEC instructions
  MIPS: kernel: traps: Fix broken indentation
  MIPS: bootmem: Don't use memory holes for page bitmap
  MIPS: O32: Do not handle require 32 bytes from the stack to be readable.
  MIPS, CPUFREQ: Fix spelling of Institute.
  MIPS: Lemote 2F: Fix build caused by recent mass rename.

9 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 12 Jul 2015 17:02:38 +0000 (10:02 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:

 - the high latency PIT detection fix, which slipped through the cracks
   for rc1

 - a regression fix for the early printk mechanism

 - the x86 part to plug irq/vector related hotplug races

 - move the allocation of the espfix pages on cpu hotplug to non atomic
   context.  The current code triggers a might_sleep() warning.

 - a series of KASAN fixes addressing boot crashes and usability

 - a trivial typo fix for Kconfig help text

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kconfig: Fix typo in the CONFIG_CMDLINE_BOOL help text
  x86/irq: Retrieve irq data after locking irq_desc
  x86/irq: Use proper locking in check_irq_vectors_for_cpu_disable()
  x86/irq: Plug irq vector hotplug race
  x86/earlyprintk: Allow early_printk() to use console style parameters like '115200n8'
  x86/espfix: Init espfix on the boot CPU side
  x86/espfix: Add 'cpu' parameter to init_espfix_ap()
  x86/kasan: Move KASAN_SHADOW_OFFSET to the arch Kconfig
  x86/kasan: Add message about KASAN being initialized
  x86/kasan: Fix boot crash on AMD processors
  x86/kasan: Flush TLBs after switching CR3
  x86/kasan: Fix KASAN shadow region page tables
  x86/init: Clear 'init_level4_pgt' earlier
  x86/tsc: Let high latency PIT fail fast in quick_pit_calibrate()

9 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 12 Jul 2015 16:36:59 +0000 (09:36 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "This update from the timer departement contains:

   - A series of patches which address a shortcoming in the tick
     broadcast code.

     If the broadcast device is not available or an hrtimer emulated
     broadcast device, some of the original assumptions lead to boot
     failures.  I rather plugged all of the corner cases instead of only
     addressing the issue reported, so the change got a little larger.

     Has been extensivly tested on x86 and arm.

   - Get rid of the last holdouts using do_posix_clock_monotonic_gettime()

   - A regression fix for the imx clocksource driver

   - An update to the new state callbacks mechanism for clockevents.
     This is required to simplify the conversion, which will take place
     in 4.3"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick/broadcast: Prevent NULL pointer dereference
  time: Get rid of do_posix_clock_monotonic_gettime
  cris: Replace do_posix_clock_monotonic_gettime()
  tick/broadcast: Unbreak CONFIG_GENERIC_CLOCKEVENTS=n build
  tick/broadcast: Handle spurious interrupts gracefully
  tick/broadcast: Check for hrtimer broadcast active early
  tick/broadcast: Return busy when IPI is pending
  tick/broadcast: Return busy if periodic mode and hrtimer broadcast
  tick/broadcast: Move the check for periodic mode inside state handling
  tick/broadcast: Prevent deep idle if no broadcast device available
  tick/broadcast: Make idle check independent from mode and config
  tick/broadcast: Sanity check the shutdown of the local clock_event
  tick/broadcast: Prevent hrtimer recursion
  clockevents: Allow set-state callbacks to be optional
  clocksource/imx: Define clocksource for mx27

9 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 12 Jul 2015 16:15:02 +0000 (09:15 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fix from Thomas Gleixner:
 "A single fix for a cpu hotplug race vs. interrupt descriptors:

  Prevent irq setup/teardown across the cpu starting/dying parts of cpu
  hotplug so that the starting/dying cpu has a stable view of the
  descriptor space.  This has been an issue for all architectures in the
  cpu dying phase, where interrupts are migrated away from the dying
  cpu.  In the starting phase its mostly a x86 issue vs the vector space
  update"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  hotplug: Prevent alloc/free of irq descriptors during cpu up/down

9 years agofreeing unlinked file indefinitely delayed
Al Viro [Wed, 8 Jul 2015 01:42:38 +0000 (02:42 +0100)]
freeing unlinked file indefinitely delayed

Normally opening a file, unlinking it and then closing will have
the inode freed upon close() (provided that it's not otherwise busy and
has no remaining links, of course).  However, there's one case where that
does *not* happen.  Namely, if you open it by fhandle with cold dcache,
then unlink() and close().

In normal case you get d_delete() in unlink(2) notice that dentry
is busy and unhash it; on the final dput() it will be forcibly evicted from
dcache, triggering iput() and inode removal.  In this case, though, we end
up with *two* dentries - disconnected (created by open-by-fhandle) and
regular one (used by unlink()).  The latter will have its reference to inode
dropped just fine, but the former will not - it's considered hashed (it
is on the ->s_anon list), so it will stay around until the memory pressure
will finally do it in.  As the result, we have the final iput() delayed
indefinitely.  It's trivial to reproduce -

void flush_dcache(void)
{
        system("mount -o remount,rw /");
}

static char buf[20 * 1024 * 1024];

main()
{
        int fd;
        union {
                struct file_handle f;
                char buf[MAX_HANDLE_SZ];
        } x;
        int m;

        x.f.handle_bytes = sizeof(x);
        chdir("/root");
        mkdir("foo", 0700);
        fd = open("foo/bar", O_CREAT | O_RDWR, 0600);
        close(fd);
        name_to_handle_at(AT_FDCWD, "foo/bar", &x.f, &m, 0);
        flush_dcache();
        fd = open_by_handle_at(AT_FDCWD, &x.f, O_RDWR);
        unlink("foo/bar");
        write(fd, buf, sizeof(buf));
        system("df ."); /* 20Mb eaten */
        close(fd);
        system("df ."); /* should've freed those 20Mb */
        flush_dcache();
        system("df ."); /* should be the same as #2 */
}

will spit out something like
Filesystem     1K-blocks   Used Available Use% Mounted on
/dev/root         322023 303843      1131 100% /
Filesystem     1K-blocks   Used Available Use% Mounted on
/dev/root         322023 303843      1131 100% /
Filesystem     1K-blocks   Used Available Use% Mounted on
/dev/root         322023 283282     21692  93% /
- inode gets freed only when dentry is finally evicted (here we trigger
than by remount; normally it would've happened in response to memory
pressure hell knows when).

Cc: stable@vger.kernel.org # v2.6.38+; earlier ones need s/kill_it/unhash_it/
Acked-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agofix a braino in ovl_d_select_inode()
Al Viro [Sun, 12 Jul 2015 14:39:45 +0000 (10:39 -0400)]
fix a braino in ovl_d_select_inode()

when opening a directory we want the overlayfs inode, not one from
the topmost layer.

Reported-By: Andrey Jr. Melnikov <temnota.am@gmail.com>
Tested-By: Andrey Jr. Melnikov <temnota.am@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years ago9p: don't leave a half-initialized inode sitting around
Al Viro [Sun, 12 Jul 2015 14:34:29 +0000 (10:34 -0400)]
9p: don't leave a half-initialized inode sitting around

Cc: stable@vger.kernel.org # all branches
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agoMerge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw...
Linus Torvalds [Sun, 12 Jul 2015 03:44:31 +0000 (20:44 -0700)]
Merge branch 'libnvdimm-fixes' of git://git./linux/kernel/git/djbw/nvdimm

Pull libnvdimm fixes from Dan Williams:
 "1) Fixes for a handful of smatch reports (Thanks Dan C.!) and minor
     bug fixes (patches 1-6)

  2) Correctness fixes to the BLK-mode nvdimm driver (patches 7-10).

     Granted these are slightly large for a -rc update.  They have been
     out for review in one form or another since the end of May and were
     deferred from the merge window while we settled on the "PMEM API"
     for the PMEM-mode nvdimm driver (ie memremap_pmem, memcpy_to_pmem,
     and wmb_pmem).

     Now that those apis are merged we implement them in the BLK driver
     to guarantee that mmio aperture moves stay ordered with respect to
     incoming read/write requests, and that writes are flushed through
     those mmio-windows and platform-buffers to be persistent on media.

  These pass the sub-system unit tests with the updates to
  tools/testing/nvdimm, and have received a successful build-report from
  the kbuild robot (468 configs).

  With acks from Rafael for the touches to drivers/acpi/"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm:
  nfit: add support for NVDIMM "latch" flag
  nfit: update block I/O path to use PMEM API
  tools/testing/nvdimm: add mock acpi_nfit_flush_address entries to nfit_test
  tools/testing/nvdimm: fix return code for unimplemented commands
  tools/testing/nvdimm: mock ioremap_wt
  pmem: add maintainer for include/linux/pmem.h
  nfit: fix smatch "use after null check" report
  nvdimm: Fix return value of nvdimm_bus_init() if class_create() fails
  libnvdimm: smatch cleanups in __nd_ioctl
  sparse: fix misplaced __pmem definition