Commit Graph

1245 Commits

Author SHA1 Message Date
Sherman Yin 7418b5cc81 pinctrl: Rename Broadcom Capri pinctrl driver
To be consistent with other Broadcom drivers, the Broadcom Capri pinctrl
driver and its related CONFIG option are renamed to bcm281xx.

Devicetree compatible string and binding documentation use
"brcm,bcm11351-pinctrl" to match the machine binding here:
Documentation/devicetree/bindings/arm/bcm/bcm11351.txt

This driver supports pinctrl on BCM11130, BCM11140, BCM11351, BCM28145
and BCM28155 SoCs.

Signed-off-by: Sherman Yin <syin@broadcom.com>
Reviewed-by: Matt Porter <mporter@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-14 09:39:33 +02:00
Bjorn Andersson 48f15e94f5 pinctrl: msm: Correct interrupt code for TLMM v2
Acking interrupts are done differently between on v2 and v3, so add an extra
attribute to the pingroup struct to let the platform definitions control this.
Also make sure to start dual edge detection by detecting the rising edge.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-14 09:39:33 +02:00
Linus Walleij 6888c75b24 pinctrl: nomadik: delete stray debug print
I left this in by mistake, get rid of it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-14 09:39:33 +02:00
Heiko Stübner c4a532dee6 pinctrl: rockchip: handle first half of rk3188-bank0 correctly
The first half of pinbank 0 only has one muxing function (as gpios) and
does not have a special mux-register.

Therefore ensure that no other mux function can be selected and also do not
write to a non-existent register.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-14 09:39:33 +02:00
Heiko Stübner 14797189b3 pinctrl: rockchip: add return value to rockchip_set_mux
In a following change, rockchip_set_mux gets the possibility to fail.
Therefore add a return value to it and honor error codes in functions
using rockchip_set_mux.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-14 09:39:33 +02:00
Beniamino Galvani 22c0d7e36f pinctrl: rockchip: fix offset of mux registers for rk3188
The correct value of .mux_offset for rk3188 seems to be 0x60
instead of 0x68.

Heiko adds:

GPIO0 only has the second two IOMUX registers:
- GRF_GPIO0C_IOMUX at 0x68
- GRF_GPIO0D_IOMUX at 0x6c
which I guess is where my mistake comes from.

It looks like there does no iomux register exist at all
for the first 16 pins.

In any case, the current number is wrong, and the 0x60
offset is the correct one, but I guess we need to
determine what the affected pins do - do they always have a
gpio mux or such?

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-14 09:39:33 +02:00
Linus Torvalds 154d6f18a4 This is the bulk of GPIO changes for v3.15:
- Merged in a branch of irqchip changes from Thomas
   Gleixner: we need to have new callbacks from the
   irqchip to determine if the GPIO line will be eligible
   for IRQs, and this callback must be able to say "no".
   After some thinking I got the branch from tglx and
   have switched all current users over to use this.
 
 - Based on tglx patches, we have added some generic
   irqchip helpers in the gpiolib core. These will
   help centralize code when GPIO drivers have simple
   chained/cascaded IRQs. Drivers will still define
   their irqchip vtables, but the gpiolib core will
   take care of irqdomain set-up, mapping from local
   offsets to Linux irqs, and reserve resources by
   marking the GPIO lines for IRQs.
 
 - Initially the PL061 and Nomadik GPIO/pin control
   drivers have been switched over to use the new
   gpiochip-to-irqchip infrastructure with more
   drivers expected for the next kernel cycle. The
   factoring of just two drivers still makes it worth
   it so it is already a win.
 
 - A new driver for the Synopsys DesignWare APB GPIO
   block.
 
 - Modify the DaVinci GPIO driver to be reusable also
   for the new TI Keystone architecture.
 
 - A new driver for the LSI ZEVIO SoCs.
 
 - Delete the obsolte tnetv107x driver.
 
 - Some incremental work on GPIO descriptors: have
   gpiod_direction_output() use a logical level,
   respecting assertion polarity through ACTIVE_LOW
   flags, adding gpiod_direction_output_raw() for the
   case where you want to set that very value. Add
   gpiochip_get_desc() to fetch a GPIO descriptor from
   a specific offset on a certain chip inside driver
   code.
 
 - Switch ACPI GPIO code over to using
   gpiochip_get_desc() and get rid of gpio_to_desc().
 
 - The ACPI GPIO event handling code has been reworked
   after encountering an actual real life implementation.
 
 - Support for ACPI GPIO operation regions.
 
 - Generic GPIO chips can now be assigned labels/names
   from platform data.
 
 - We now clamp values returned from GPIO drivers to
   the boolean [0,1] range.
 
 - Some improved documentation on how to use the polarity
   flag was added.
 
 - The a large slew of incremental driver updates and
   non-critical fixes. Some targeted for stable.
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Merge tag 'gpio-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull bulk of gpio updates from Linus Walleij:
 "A pretty big chunk of changes this time, but it has all been on
  rotation in linux-next and had some testing.  Of course there will be
  some amount of fixes on top...

   - Merged in a branch of irqchip changes from Thomas Gleixner: we need
     to have new callbacks from the irqchip to determine if the GPIO
     line will be eligible for IRQs, and this callback must be able to
     say "no".  After some thinking I got the branch from tglx and have
     switched all current users over to use this.

   - Based on tglx patches, we have added some generic irqchip helpers
     in the gpiolib core.  These will help centralize code when GPIO
     drivers have simple chained/cascaded IRQs.  Drivers will still
     define their irqchip vtables, but the gpiolib core will take care
     of irqdomain set-up, mapping from local offsets to Linux irqs, and
     reserve resources by marking the GPIO lines for IRQs.

   - Initially the PL061 and Nomadik GPIO/pin control drivers have been
     switched over to use the new gpiochip-to-irqchip infrastructure
     with more drivers expected for the next kernel cycle.  The
     factoring of just two drivers still makes it worth it so it is
     already a win.

   - A new driver for the Synopsys DesignWare APB GPIO block.

   - Modify the DaVinci GPIO driver to be reusable also for the new TI
     Keystone architecture.

   - A new driver for the LSI ZEVIO SoCs.

   - Delete the obsolte tnetv107x driver.

   - Some incremental work on GPIO descriptors: have
     gpiod_direction_output() use a logical level, respecting assertion
     polarity through ACTIVE_LOW flags, adding gpiod_direction_output_raw()
     for the case where you want to set that very value.  Add
     gpiochip_get_desc() to fetch a GPIO descriptor from a specific
     offset on a certain chip inside driver code.

   - Switch ACPI GPIO code over to using gpiochip_get_desc() and get rid
     of gpio_to_desc().

   - The ACPI GPIO event handling code has been reworked after
     encountering an actual real life implementation.

   - Support for ACPI GPIO operation regions.

   - Generic GPIO chips can now be assigned labels/names from platform
     data.

   - We now clamp values returned from GPIO drivers to the boolean [0,1]
     range.

   - Some improved documentation on how to use the polarity flag was
     added.

   - a large slew of incremental driver updates and non-critical fixes.
     Some targeted for stable"

* tag 'gpio-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (80 commits)
  gpio: rcar: Add helper variable dev = &pdev->dev
  gpio-lynxpoint: force gpio_get() to return "1" and "0" only
  gpio: unmap gpio irqs properly
  pch_gpio: set value before enabling output direction
  gpio: moxart: Actually set output state in moxart_gpio_direction_output()
  gpio: moxart: Avoid forward declaration
  gpio: mxs: Allow for recursive enable_irq_wake() call
  gpio: samsung: Add missing "break" statement
  gpio: twl4030: Remove redundant assignment
  gpio: dwapb: correct gpio-cells in binding document
  gpio: iop: fix devm_ioremap_resource() return value checking
  pinctrl: coh901: convert driver to use gpiolib irqchip
  pinctrl: nomadik: convert driver to use gpiolib irqchip
  gpio: pl061: convert driver to use gpiolib irqchip
  gpio: add IRQ chip helpers in gpiolib
  pinctrl: nomadik: factor in platform data container
  pinctrl: nomadik: rename secondary to latent
  gpio: Driver for SYSCON-based GPIOs
  gpio: generic: Use platform_device_id->driver_data field for driver flags
  pinctrl: coh901: move irq line locking to resource callbacks
  ...
2014-04-03 16:44:15 -07:00
Linus Torvalds d64b393253 Pin control bulk changes for the v3.15 series, no new core
functionality this time, just incremental driver updates:
 
 - A large refactoring of the MVEBU (Marvell) driver.
 
 - A large refactoring of the Tegra (nVidia) driver.
 
 - GPIO interrupt including soft edges support in the
   STi driver.
 
 - Misc updates to PFC (Renesas), AT91, ADI2 (Blackfin),
   pinctrl-single, sirf (CSR), msm (Qualcomm), Exynos (Samsung),
   sunxi (AllWinner), i.MX (Freescale), Baytrail.
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Merge tag 'pinctrl-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control bulk changes from Linus Walleij:
 "Pin control bulk changes for the v3.15 series, no new core
  functionality this time, just incremental driver updates:

   - A large refactoring of the MVEBU (Marvell) driver.

   - A large refactoring of the Tegra (nVidia) driver.

   - GPIO interrupt including soft edges support in the STi driver.

   - Misc updates to PFC (Renesas), AT91, ADI2 (Blackfin),
     pinctrl-single, sirf (CSR), msm (Qualcomm), Exynos (Samsung), sunxi
     (AllWinner), i.MX (Freescale), Baytrail"

* tag 'pinctrl-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits)
  pinctrl: tegra: add some missing Tegra114 entries
  pinctrl: tegra: fix some mistakes in Tegra124
  pinctrl: msm: fix up out-of-order merge conflict
  pinctrl: st: Fix error check for of_irq_to_resource usage
  pinctrl: tegra: consistency cleanup
  pinctrl: tegra: dynamically calculate function list of groups
  pinctrl: tegra: init Tegra20/30 at module_init time
  pinctrl: st: Use ARRAY_SIZE instead of raw value for number of delays
  pinctrl: st: add pinctrl support for the STiH407 SoC
  pinctrl: st: Enhance the controller to manage unavailable registers
  pinctrl: msm: Simplify msm_config_reg() and callers
  pinctrl: msm: Remove impossible WARN_ON()s
  pinctrl: msm: Replace lookup tables with math
  pinctrl: msm: Drop OF_IRQ dependency
  pinctrl: msm: Drop unused includes
  pinctrl: msm: Check for ngpios > MAX_NR_GPIO
  pinctrl: msm: Silence recursive lockdep warning
  pinctrl: mvebu: silence WARN to dev_warn
  pinctrl: msm: drop wake_irqs bitmap
  pinctrl-baytrail: add function mux checking in gpio pin request
  ...
2014-04-01 13:10:49 -07:00
Linus Walleij 523dcce72c pinctrl: coh901: convert driver to use gpiolib irqchip
This converts the COH901 pin control driver to register its
chained irq handler and irqchip using the helpers in the
gpiolib core.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-26 10:31:34 +01:00
Linus Walleij e0bc34a3da pinctrl: nomadik: convert driver to use gpiolib irqchip
This converts the Nomadik pin control driver to register its
chained irq handler and irqchip using the helpers in the
gpiolib core.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-26 10:31:33 +01:00
Linus Walleij 8f18bcfcd2 pinctrl: nomadik: factor in platform data container
The old platform data struct is just a leftover from the times
when the driver was not probed exclusively from the device tree.
Factor this into the general state container and simplify the
probe path.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-25 09:57:07 +01:00
Linus Walleij 194e15ba00 pinctrl: nomadik: rename secondary to latent
The "secondary irq" in the nomadik pin control driver is actually
not secondary (as in: can occur any time alongside the ordinary
irq), it is a latent IRQ. It is an IRQ that has occurred when
the system was in sleep state and has been cached in a special
register flagged from the low power management unit (PRCM).

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-25 09:57:01 +01:00
Linus Walleij 8c1d50a6a7 pinctrl: coh901: move irq line locking to resource callbacks
This switches the COH901 GPIO driver over to using the
.request_resources() and .release_resources() callbacks from
the irqchip vtable and separate the calls from the .enable()
and .disable() callbacks as the latter cannot really say no
to a request, whereas the resource callbacks can.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-18 09:28:30 +01:00
Linus Walleij 57ef04288a gpio: switch drivers to use new callback
This switches all GPIO and pin control drivers with irqchips
that were using .startup() and .shutdown() callbacks to lock
GPIO lines for IRQ usage over to using the .request_resources()
and .release_resources() callbacks just introduced into the
irqchip vtable.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-18 09:28:30 +01:00
Stephen Warren 43f23a0660 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>
2014-03-14 16:32:36 +01:00
Stephen Warren 0ffdd4b61b 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>
2014-03-14 16:32:36 +01:00
Linus Walleij 17cdc926ec pinctrl: msm: fix up out-of-order merge conflict
Commit 051a58b462
"pinctrl: msm: Simplify msm_config_reg() and callers"
removed the local "reg" variable in the msm_config_reg()
function, but the earlier
commit ed118a5fd9
"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>
2014-03-14 16:32:23 +01:00
Srinivas Kandagatla bcca9220b2 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>
2014-03-12 15:53:44 +01:00
Stephen Warren 93cfb2d862 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>
2014-03-12 15:27:33 +01:00
Stephen Warren ce43625466 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>
2014-03-12 15:23:41 +01:00
Stephen Warren edfab368c8 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>
2014-03-12 15:22:29 +01:00
Maxime COQUELIN 88430acf38 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>
2014-03-12 15:18:24 +01:00
Giuseppe Cavallaro 7ce717db38 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>
2014-03-12 15:17:07 +01:00
Giuseppe Cavallaro 4e6a609fb7 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>
2014-03-12 15:15:34 +01:00
Stephen Boyd 051a58b462 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>
2014-03-12 15:12:29 +01:00
Stephen Boyd 1a0840ae03 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>
2014-03-12 15:12:28 +01:00
Stephen Boyd 7cc34e2e1a 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>
2014-03-12 15:12:28 +01:00
Stephen Boyd 5f2449d022 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>
2014-03-12 15:12:27 +01:00
Stephen Boyd af3e18f13d 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>
2014-03-12 15:12:27 +01:00
Stephen Boyd dcd278b860 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>
2014-03-12 15:12:27 +01:00
Stephen Boyd 3525f5556a 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>
2014-03-12 15:12:19 +01:00
Sebastian Hesselbarth 3c7d563789 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>
2014-03-12 15:00:04 +01:00
Josh Cartwright 6aced33f49 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>
2014-03-12 14:54:28 +01:00
Chew, Kean Ho 42bd00706c 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>
2014-03-11 11:22:54 +01:00
Stephen Warren a76cbd7eba 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>
2014-03-11 11:16:28 +01:00
Linus Torvalds 79e615420c ARM: SoC fixes for 3.14-rc
A collection of fixes for ARM platforms. A little large due to us missing to
 do one last week, but there's nothing in particular here that is in itself
 large and scary.
 
 Mostly a handful of smaller fixes all over the place. The majority is made
 up of fixes for OMAP, but there are a few for others as well. In particular,
 there was a decision to rename a binding for the Broadcom pinctrl block that
 we need to go in before the final release since we then treat it as ABI.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from from Olof Johansson:
 "A collection of fixes for ARM platforms.  A little large due to us
  missing to do one last week, but there's nothing in particular here
  that is in itself large and scary.

  Mostly a handful of smaller fixes all over the place.  The majority is
  made up of fixes for OMAP, but there are a few for others as well.  In
  particular, there was a decision to rename a binding for the Broadcom
  pinctrl block that we need to go in before the final release since we
  then treat it as ABI"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
  ARM: tegra: add LED options back into tegra_defconfig
  ARM: dts: omap3-igep: fix boot fail due wrong compatible match
  ARM: OMAP3: Fix pinctrl interrupts for core2
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  ARM: OMAP: Kill warning in CPUIDLE code with !CONFIG_SMP
  ARM: OMAP2+: Add support for thumb mode on DT booted N900
  ARM: OMAP2+: clock: fix clkoutx2 with CLK_SET_RATE_PARENT
  ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4
  ARM: DRA7: hwmod data: correct the sysc data for spinlock
  ARM: OMAP5: PRM: Fix reboot handling
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types
2014-03-09 19:27:31 -07:00
Barry Song e291fd20ef pinctrl: sirf: fix kernel panic in gpio_lock_as_irq
commit 655dada627 causes kernel panic, this patch fixes it.

    [    1.197816] [ffffffee] *pgd=0d7fd821, *pte=00000000, *ppte=00000000
    [    1.204070] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
    [    1.209447] Modules linked in:
    [    1.212490] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc1 #3
    [    1.218737] task: cd03c000 ti: cd040000 task.ti: cd040000
    [    1.224127] PC is at gpiod_lock_as_irq+0xc/0x64
    [    1.228634] LR is at sirfsoc_gpio_irq_startup+0x18/0x44
    [    1.233842] pc : [<c01d3990>]    lr : [<c01d1c38>]    psr: a0000193
    [    1.233842] sp : cd041d30  ip : 00000000  fp : 00000000
    [    1.245296] r10: 00000000  r9 : cd023db4  r8 : 60000113
    [    1.250505] r7 : 0000003e  r6 : cd023dd4  r5 : c06bfa54  r4 : cd023d80
    [    1.257014] r3 : 00000020  r2 : 00000000  r1 : ffffffea  r0 : ffffffea
    [    1.263526] Flags: NzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
    [    1.270903] Control: 10c53c7d  Table: 00004059  DAC: 00000015
    [    1.276631] Process swapper/0 (pid: 1, stack limit = 0xcd040240)
    [    1.282620] Stack: (0xcd041d30 to 0xcd042000)
    [    1.286963] 1d20:                                     cd023d80 c01d1c38 c01d1c20 cd023d80
    [    1.295124] 1d40: 00000001 c0068438 cd023d80 ccb6d880 cd023dd4 c0067044 0000718e c006719c
    [    1.286963] 1d20:                                     cd023d80 c01d1c38 c01d1c20 cd023d80
    [    1.295124] 1d40: 00000001 c0068438 cd023d80 ccb6d880 cd023dd4 c0067044 0000718e c006719c
    [    1.295124] 1d40: 00000001 c0068438 cd023d80 ccb6d880 cd023dd4 c0067044 0000718e c006719c
    [    1.303283] 1d60: 00000800 00000083 ccb6d880 cd023d80 c02b41d8 00000083 0000003e ccb7c410
    [    1.311442] 1d80: 00000000 c00671dc 00000083 0000003e c02b41d8 cd3dd5c0 0000003e ccb7c634
    [    1.319601] 1da0: cd040030 c00672a8 cd3dd5c0 ccb7c410 ccb6d340 ccb7c410 ccb6d340 cd3dd400
    [    1.327760] 1dc0: cd3dd410 c02b4434 ccb7c410 c01265a8 00000001 cd3dd410 c0687108 00000000
    [    1.335919] 1de0: c0687108 00000000 00000000 c0240170 c0240158 cd3dd410 c06c30d0 c023e8bc
    [    1.344079] 1e00: c023e9d4 00000000 cd3dd410 c023e9d4 c0682150 c023cf88 cd003e98 cd2d50c4
    [    1.352238] 1e20: cd3dd410 cd3dd444 c06822f0 c023e768 cd3dd418 cd3dd410 c06822f0 c023de14
    [    1.360397] 1e40: cd3dd418 00000000 cd3dd410 c023c398 cd041e78 cd041ea8 cd3dd400 cd3dd410
    [    1.368556] 1e60: 00000083 00000000 cd3dd400 cd3dd410 00000083 000000c8 c04e00c8 c023fee8
    [    1.376715] 1e80: 00000000 cd041ea8 cd3dd400 00000001 00000083 c024048c c0435ef8 c0434dec
    [    1.384874] 1ea0: c068da58 c04c6d04 c0682150 c0435ef8 ffffffff 00000000 00000000 c068da58
    [    1.393033] 1ec0: 00000020 00000000 00000000 00000000 c05dabb8 00000007 c068d640 c068d640
    [    1.401193] 1ee0: c04c247c c04c249c 00000000 c00088e8 cd004c00 c043bbb8 cd029180 c03812a0
    [    1.409352] 1f00: 00000000 00000000 60000113 c0673728 60000113 c0673728 00000000 00000000
    [    1.417511] 1f20: cd7fce01 c0390a54 00000065 c003a81c c049e8bc 00000007 cd7fce0e 00000007
    [    1.425670] 1f40: 00000000 c05dabb8 00000007 c068d640 c068d640 c04c050c c04e00c8 00000065
    [    1.433829] 1f60: c04e00c0 c04c0c54 00000007 00000007 c04c050c c037d8fc cd03c000 c004322c
    [    1.441988] 1f80: c0662b40 0000d640 c03737c0 00000000 00000000 00000000 00000000 00000000
    [    1.450147] 1fa0: 00000000 c03737cc 00000000 c000e478 00000000 00000000 00000000 00000000
    [    1.458307] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
    [    1.466467] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 0002d481 05014092
    [    1.474640] [<c01d3990>] (gpiod_lock_as_irq) from [<c01d1c38>] (sirfsoc_gpio_irq_startup+0x18/0x44)
    [    1.483661] [<c01d1c38>] (sirfsoc_gpio_irq_startup) from [<c0068438>] (irq_startup+0x34/0x6c)
    [    1.492163] [<c0068438>] (irq_startup) from [<c0067044>] (__setup_irq+0x450/0x4b8)
    [    1.499714] [<c0067044>] (__setup_irq) from [<c00671dc>] (request_threaded_irq+0xa8/0x128)
    [    1.507960] [<c00671dc>] (request_threaded_irq) from [<c00672a8>] (request_any_context_irq+0x4c/0x7c)
    [    1.517164] [<c00672a8>] (request_any_context_irq) from [<c02b4434>] (gpio_extcon_probe+0x144/0x1d4)
    [    1.526279] [<c02b4434>] (gpio_extcon_probe) from [<c0240170>] (platform_drv_probe+0x18/0x48)
    [    1.534783] [<c0240170>] (platform_drv_probe) from [<c023e8bc>] (driver_probe_device+0x120/0x238)
    [    1.543641] [<c023e8bc>] (driver_probe_device) from [<c023cf88>] (bus_for_each_drv+0x58/0x8c)
    [    1.552143] [<c023cf88>] (bus_for_each_drv) from [<c023e768>] (device_attach+0x74/0x88)
    [    1.560126] [<c023e768>] (device_attach) from [<c023de14>] (bus_probe_device+0x84/0xa8)
    [    1.568113] [<c023de14>] (bus_probe_device) from [<c023c398>] (device_add+0x440/0x520)
    [    1.576012] [<c023c398>] (device_add) from [<c023fee8>] (platform_device_add+0xb4/0x214)
    [    1.584084] [<c023fee8>] (platform_device_add) from [<c024048c>] (platform_device_register_full+0xb8/0xdc)
    [    1.593719] [<c024048c>] (platform_device_register_full) from [<c04c6d04>] (sirfsoc_init_late+0xec/0xf4)
    [    1.603185] [<c04c6d04>] (sirfsoc_init_late) from [<c04c249c>] (init_machine_late+0x20/0x28)
    [    1.611603] [<c04c249c>] (init_machine_late) from [<c00088e8>] (do_one_initcall+0xf8/0x144)
    [    1.619934] [<c00088e8>] (do_one_initcall) from [<c04c0c54>] (kernel_init_freeable+0x13c/0x1dc)
    [    1.628620] [<c04c0c54>] (kernel_init_freeable) from [<c03737cc>] (kernel_init+0xc/0x118)

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-05 17:11:47 +08:00
Magnus Damm b5973fcd76 pinctrl: sh-pfc: r8a7791: SD1_CLK fix
Fix the SD1_CLK handling for r8a7791. Without this patch
it is impossible to request all pins needed for SDHI1 on
the Koelsch board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-05 09:57:47 +08:00
Josh Cartwright 5ba341604a pinctrl: msm: make PINCTRL_MSM bool instead of tristate
Modular builds of pinctrl-msm break due to handle_bad_irq being
unexported for module use.  For now, make PINCTRL_MSM 'bool'.

Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-05 09:57:47 +08:00
Hans de Goede ef5aff05f1 pinctrl: sunxi: Fix interrupt register offset calculation
This fixing setting the interrupt type for eints >= 8.

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>
2014-03-05 09:57:42 +08:00
Hans de Goede d82f94013a pinctrl: sunxi: Fix masking when setting irq type
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>
2014-03-05 09:57:36 +08:00
Chen-Yu Tsai 905a5117e7 pinctrl: sunxi: use chained_irq_{enter, exit} for GIC compatibility
On tha Allwinner A20 SoC, the external interrupts on the pin controller
device are connected to the GIC. Without chained_irq_{enter, exit},
external GPIO interrupts, such as used by mmc core card detect, cause
the system to hang.

This issue was first encountered during my attempt to get out-of-band
interrupts for WiFi on the Cubietruck working. With David's new series
of sunci-mci using mmc slot-gpio for (GPIO interrupt based) card
detection, removing the SD card also causes my Cubietruck to hang. This
problem should extend to all Allwinner A20 based boards.

With this fix, the system no longer hangs when I remove or insert the
SD card. /proc/interrupts show that the interrupt has correctly fired.
However the system still does not detect card removal/insertion. I
believe this is another unrelated issue.

Cc: stable@vger.kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-05 09:57:10 +08:00
Geert Uytterhoeven e6fae2d03d 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>
2014-03-05 09:53:49 +08:00
Geert Uytterhoeven 7033168da5 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>
2014-03-05 09:15:30 +08:00
Linus Walleij a9ea2ed45a Merge branch 'pinctrl-mvebu' into devel 2014-03-03 13:40:22 +08:00
Jason Cooper 7cab36e5ee Sign for-mvebu/pinctrl-3xx
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Merge tag 'tags/for-mvebu-pinctrl-3xx' into mvebu/pinctrl

Sign for-mvebu/pinctrl-3xx
2014-03-01 07:03:52 +00:00
Sebastian Hesselbarth 6da67cab4b 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>
2014-02-25 21:16:18 +01:00
Sebastian Hesselbarth 18e6f28e9c 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>
2014-02-25 21:16:16 +01:00
Sebastian Hesselbarth 2c4b229baf 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>
2014-02-25 21:16:14 +01:00
Sebastian Hesselbarth 00202b013e 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>
2014-02-25 21:16:12 +01:00