Commit Graph

1413 Commits

Author SHA1 Message Date
Laurent Pinchart
0e26e8dfb9 pinctrl: sh-pfc: Don't set the pinmux_irq irq field for multiplatform
In the multiplatform kernel case the IRQs associated with the PFC GPIOs
are specified through DT. The pinmux_irq irq field is thus ignored by
the code, and doesn't need to be set.

This will allow removing the mach/irq.h include from pfc-*.c files that
was required for the irq_pin() macro used to initialize the irq field.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-23 00:01:51 +02:00
Maxime Ripard
b22116b33a pinctrl: sunxi: Enable the pinctrl Kconfig options by default
Enable the freshly introduced Kconfig options whenever their matching
architecture is enabled.

Since the Kconfig symbols for these machines are going through a different
tree, keep PINCTRL_SUNXI around for the moment to avoid breaking the defconfig.
It should be removed eventually.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-23 00:01:50 +02:00
Alexey Charkov
7ea456436f pinctrl: vt8500: Ensure value reg is updated when setting direction
Current code only touches the direction register when setting direction
to output, which breaks logic like

echo high > /sys/class/gpio/gpio0/direction

which is expected to also set the value. This patch also adds a call
to update the value register when setting direction to output.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-22 23:46:10 +02:00
Heiko Stübner
1e747e59cc pinctrl: rockchip: base regmap supplied by a syscon
This allows the basic registers of the general register files to be supplied
by a syscon instead of being mapped locally.

The GRF registers contain a lot more than pinctrl functions like dma, usb-phy
and general soc control and status registers, intermixed with the iomux, pull
and drive-strength registers.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09 11:16:13 +02:00
Heiko Stübner
a658efaa85 pinctrl: rockchip: only map bank0-pull-region when pmu regmap missing
When the pmu registers are supplied through a syscon regmap we do not need
to map the registers ourself.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09 11:15:46 +02:00
Heiko Stübner
14dee8677e pinctrl: rockchip: let pmu registers be supplied by a syscon
Currently the pmu registers containing pin pull settings on the rk3188 are mapped
locally when bank0 is instantiated. Add an alternative that can resolve the pmu
from a syscon phandle.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09 11:15:17 +02:00
Heiko Stübner
622f32372b pinctrl: rockchip: rockchip_pinctrl in rockchip_get_bank_data
Convert rockchip_get_bank_data to use the struct rockchip_pinctrl because
later on we need to check a value from it when registering the gpio banks.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09 11:14:46 +02:00
Heiko Stübner
751a99aba4 pinctrl: rockchip: use regmaps instead of raw mappings
This allows us to use syscons in the future.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09 11:14:15 +02:00
Heiko Stübner
bfc7a42a0e pinctrl: rockchip: do not require 2nd register area
Deprecate secondary register area for rk3188 pulls. Instead use big enough
initial mapping of grf registers to catch all.

The now deprecated register is still supported though.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09 11:13:44 +02:00
Linus Walleij
9dffe1d4a7 Pinctrl cleanup and reworks for 3.16
This serie of patch:
   - Moves the Allwinner pinctrl driver to a folder of its own
   - removes the sunxi-pinctrl-pins header, and split the driver into a core
     one, with all the logic, and smaller drivers, one for each SoC, that
     declare the pins, and will provide to the core the set of pins.
   - And does a few cleanups here and there.
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Merge tag 'sunxi-pinctrl-for-3.16' of https://github.com/mripard/linux into devel

Pinctrl cleanup and reworks for 3.16

This serie of patch:
  - Moves the Allwinner pinctrl driver to a folder of its own
  - removes the sunxi-pinctrl-pins header, and split the driver into a core
    one, with all the logic, and smaller drivers, one for each SoC, that
    declare the pins, and will provide to the core the set of pins.
  - And does a few cleanups here and there.
2014-05-09 08:47:16 +02:00
Maxime Ripard
dc9691066f pinctrl: sunxi: Move the reset handling functions out of the core
The way that reset is handled right now is that it is made optional for every
pinctrl driver, while actually, it isn't used at all for the main pin
controllers so far, and while it's mandatory for the A31's secondary pin
controller.

Move the reset functions out of the core and in the driver, where they can be
made mandatory.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 19:57:18 -05:00
Maxime Ripard
340ba6c497 pinctrl: sunxi: Introduce per-driver Kconfig options
Add one Kconfig option for each driver. This will allow to better control which
driver is enabled, instead of having either all or nothing.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 19:41:44 -05:00
Maxime Ripard
2519859418 pinctrl: sunxi: Move Allwinner A20 pinctrl driver to a driver of its own
Move the pin description to a driver specific to be.

This is the final step toward retiring pinctrl-sunxi-pins.h that used to define
all the pins for all the Allwinner SoCs in a single header, that would have in
turn result in having these structures in the final binary as many times as the
header was included.

We can finally remove that header, and remove all the driver part of the
pinctrl-sunxi core.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 00:04:49 -07:00
Maxime Ripard
16c675f989 pinctrl: sunxi: Move Allwinner A31 special pins driver to a driver of its own
Move the pin description to a driver specific to be. This is one more step
toward retiring pinctrl-sunxi-pins.h that used to define all the pins for all
the Allwinner SoCs in a single header, that would have in turn result in having
these structures in the final binary as many times as the header was included.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 00:03:31 -07:00
Maxime Ripard
1c996176e7 pinctrl: sunxi: Move Allwinner A31 pinctrl driver to a driver of its own
Move the pin description to a driver specific to be. This is one more step
toward retiring pinctrl-sunxi-pins.h that used to define all the pins for all
the Allwinner SoCs in a single header, that would have in turn result in having
these structures in the final binary as many times as the header was included.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 00:03:30 -07:00
Maxime Ripard
342cefb212 pinctrl: sunxi: Move Allwinner A13 pinctrl driver to a driver of its own
Move the pin description to a driver specific to be. This is one more step
toward retiring pinctrl-sunxi-pins.h that used to define all the pins for all
the Allwinner SoCs in a single header, that would have in turn result in having
these structures in the final binary as many times as the header was included.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 00:03:29 -07:00
Maxime Ripard
0a127c1c39 pinctrl: sunxi: Move Allwinner A10s pinctrl driver to a driver of its own
Move the pin description to a driver specific to be. This is one more step
toward retiring pinctrl-sunxi-pins.h that used to define all the pins for all
the Allwinner SoCs in a single header, that would have in turn result in having
these structures in the final binary as many times as the header was included.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 00:03:29 -07:00
Maxime Ripard
f2821b1ca3 pinctrl: sunxi: Move Allwinner A10 pinctrl driver to a driver of its own
Move the pin description to a driver specific to be. This is one more step
toward retiring pinctrl-sunxi-pins.h that used to define all the pins for all
the Allwinner SoCs in a single header, that would have in turn result in having
these structures in the final binary as many times as the header was included.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 00:03:28 -07:00
Maxime Ripard
2284ba6b7d pinctrl: sunxi: Libraryse the driver
This will allow to have multiple drivers using the same core code, and
eventually, retire pinctrl-sunxi-pins.h

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-04 00:03:24 -07:00
Maxime Ripard
4409cafc1a pinctrl: sunxi: Switch to devm_ioremap_resource
The previous code was calling of_iomap, which doesn't do any resource
management, and doesn't call request_mem_region either. Use
devm_ioremap_resource that do both.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-03 23:59:44 -07:00
Maxime Ripard
d10acc6353 pinctrl: sunxi: Replace hardcoded pin defines by a macro
We previously had an evergrowing (and exhaustive) list of the pins that could
be used on any Allwinner SoCs. These defines were then used by each pinctrl
driver to declare the list of functions for this pin. Since it's pretty much
all boilerplate, we can remove it just by a single macro.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-03 23:59:44 -07:00
Maxime Ripard
5f9107774f pinctrl: sunxi: Move the Allwinner pinctrl driver to its own directory
This will allow to create numerous files without crippling the main pinctrl
directory.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-03 23:59:43 -07:00
Maxime Ripard
0df6846d55 pinctrl: sunxi: Drop unused structure members
The ranges and nranges were never used. Remove them.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-03 23:59:42 -07:00
Maxime Ripard
d39bd8457f pinctrl: sunxi: Add const qualifier to the pin descriptor
The pins description structure were declared as const, but the of_device_id
data magic was losing it silently.

Make sure we have it on both sides.

And now that we're using const, we can also remove the useless cast in probe.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-03 23:59:02 -07:00
Andy Gross
2aa02733fb pinctrl: qcom: Correct name for pin 0
Fix copy/paste error in pinctrl_pin_desc for pin 0.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-02 15:42:52 -07:00
Thomas Petazzoni
fd67f88478 pinctrl: mvebu: new driver for Orion platforms
This commit extends the pinctrl mvebu logic with a new driver to cover
Orion5x SoC. It supports the definitions for the 5181l, 5182 and 5281
variants of Orion5x, which are the three ones supported by the old
style MPP code in arch/arm/mach-orion5x/.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-24 15:09:35 +02:00
Heiko Stübner
a076e2ed3f pinctrl: rockchip: implement PIN_CONFIG_OUTPUT handling
In some cases it is nice to be able to simply control a gpio output
via the PIN_CONFIG_OUTPUT option without having a driver control it.
Thus add support for it to the rockchip pinctrl driver.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 23:19:40 +02:00
Heiko Stübner
dab3eba7c1 pinctrl: rockchip: return a complete config in pinconf_get
Till now pinconf_get only set the argument value into the config parameter
effectively removing the actual config param value. As other pinctrl drivers
do, it might be nicer to keep the config param intact.
Therefore construct a real pinconfig value from param and arg in pinconf_get

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 23:18:37 +02:00
Linus Walleij
7420d2d09b pinctrl: sirf: switch driver to use gpiolib irqchip helpers
This switches the SiRF pinctrl driver over to using the gpiolib
irqchip helpers simplifying some of the code.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 22:02:54 +02:00
Barry Song
c5eb757ca8 pinctrl: sirf: wrap all gpio banks into one gpio_chip
all gpio banks are in one chip, that makes software clean in mapping
irq and gpio.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 22:01:31 +02:00
Linus Walleij
aef95b691f pinctrl: sirf: rename inlined accessor
The sirfsoc_irqchip_to_bank() is obviously misnamed, as it is
not converting an irqchip to a bank but converts a gpiochip
to a bank so rename it sirfsoc_gpiochip_to_bank().

Acked-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 22:01:17 +02:00
Phil Edworthy
0c66c5628b sh-pfc: r8a7791: Fix definition of MOD_SEL3
There is a missing 0 entry from the MOD_SEL3 table.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 16:09:53 +02:00
Guido Piasenza
34ce57e9df sh-pfc: r8a7790: Fix definition of IPSR5
The extra entry in the table makes SCIFA0_B, and all
peripherals after it, fail.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 16:08:23 +02:00
Andy Gross
b4da6573e7 pinctrl: qcom: Add definitions for IPQ8064
This adds pinctrl definitions for the GPIO pins of the TLMM v2 block in the
Qualcomm IPQ8064 platform.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 15:59:58 +02:00
Tony Lindgren
58968625c4 pinctrl: single: Clear pin interrupts enabled by bootloader
Since we set up device wake-up interrupts as pinctrl-single
interrupts, we now must use the standard request_irq and
related functions to manage them.

If the pin interrupts are enabled for some pins at boot,
the wake-up events can show up as constantly pending
at least on omaps and will hang the system unless the related
device driver clears the event at the device.

To fix this, let's clear the interrupt flags during init,
and print out a warning so the board maintainers can update
their drivers to do proper request_irq for the driver specific
wake-up events.

Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 15:56:56 +02:00
Tomasz Figa
d97f5b9804 pinctrl: exynos: Add driver data for Exynos3250
This patch adds driver data (bank list and EINT layout) for Exynos3250
to pinctrl-exynos driver. Exynos3250 includes 158 multi-functional input/output
ports. There are 23 general port groups.

Changes from v1:
- Add signed-off of sender
- Post only separated patch for pinctrl from following patchset(v1)
  : https://lkml.org/lkml/2014/4/10/286

Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-23 09:00:25 +02:00
Alexander Stein
47f227163a pinctrl/at91: Fix mask creation in at91_gpio_dbg_show
pin_to_mask expects a bank pin number. So do not add the chip base.

Without that patch cat /sys/kernel/debug/gpio looks like that:
GPIOs 0-31, platform/fffff200.gpio, fffff200.gpio:
[spi32766.0] GPIOfffff200.gpio5: [gpio] set
[ads7846_pendown] GPIOfffff200.gpio15: [gpio] set
[ohci_vbus] GPIOfffff200.gpio21: [gpio] set
[ohci_vbus] GPIOfffff200.gpio24: [gpio] set
[button1] GPIOfffff200.gpio28: [gpio] clear
[button2] GPIOfffff200.gpio29: [gpio] clear

GPIOs 32-63, platform/fffff400.gpio, fffff400.gpio:
[sda] GPIOfffff400.gpio4: [periph A]
[scl] GPIOfffff400.gpio5: [periph A]
[spi32766.3] GPIOfffff400.gpio11: [periph A]
[error] GPIOfffff400.gpio22: [periph A]
[run] GPIOfffff400.gpio23: [periph A]

GPIOs 64-95, platform/fffff600.gpio, fffff600.gpio:
[reset_pin] GPIOfffff600.gpio29: [periph A]

GPIOs 96-127, platform/fffff800.gpio, fffff800.gpio:
[led1] GPIOfffff800.gpio5: [periph A]
[led2] GPIOfffff800.gpio6: [periph A]
[led3] GPIOfffff800.gpio7: [periph A]
[led4] GPIOfffff800.gpio8: [periph A]

GPIOs 128-159, platform/fffffa00.gpio, fffffa00.gpio:
[button3] GPIOfffffa00.gpio10: [periph A]
[button4] GPIOfffffa00.gpio12: [periph A]

Note that every bank despite bank 0 only shows "periph A" which are
obviously used as GPIOs.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 23:45:57 +02:00
Alexander Stein
80cc37329d pinctrl/at91: convert driver to use gpiolib irqchip
This converts the AT91 pin control driver to register its
chained irq handler and irqchip using the helpers in the
gpiolib core.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 23:37:21 +02:00
Andrew Bresticker
a73d2e30b4 pinctrl: as3722: fix handling of GPIO invert bit
The AS3722_GPIO_INV bit will always be blindly overwritten by
as3722_pinctrl_gpio_set_direction() and will be ignored when
setting the value of the GPIO in as3722_gpio_set() since the
enable_gpio_invert flag is never set.  This will cause an
initially inverted GPIO to toggle when requested as an output,
which could be problematic if, for example, the GPIO controls
a critical regulator.

Instead of setting up the enable_gpio_invert flag, just leave
the invert bit alone and check it before setting the GPIO value.

Cc: <stable@vger.kernel.org> # v3.14+
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 17:04:11 +02:00
Stephen Warren
443ac95302 pinctrl: tegra: add missing kerneldoc
The kerneldoc for struct tegra_pingroup didn't describe all of the fields
in the struct. Add some extra kerneldoc to fix that.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 16:55:41 +02:00
Stephen Warren
36e80dca9f pinctrl: tegra: print better error messages
When an attempt is made to configure an unsupported option on a pin,
print the DT property name of that option, so it's easier to debug
what the problem is.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 16:53:43 +02:00
Stephen Warren
0298fc3e1b pinctrl: tegra: reduce size of data table fields
The range of npins and function ID values is small enough to fit into a
u8. Use this type rather than unsigned to shrink the pinmux data tables.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 16:52:38 +02:00
Stephen Warren
6240d691be pinctrl: tegra: remove fsafe from data tables
The fsafe value in the pingroup data tables is only used to implement
tegra_pinctrl_disable(). The only reason this function is called is when
dynamically switching between pinmux states, i.e. when disabling the old
state before programming the new state. It's simpler to have the new
target state define the expected value of each pin (and all current DTs
do that). This also gives more flexibility, since it allows individual
boards explicit control over the "inactive" mux function for each pin,
rather than requiring it to be an SoC-specific value. Assuming this, we
can get rid of the fsafe value from the driver completely, thus saving
some more space in the driver tables.

While re-writing the content of tegra124_pingroups[], fix the indentation
to use a TAB instead of spaces.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 16:50:24 +02:00
Stephen Warren
e53b797474 pinctrl: tegra: remove redundant data table fields
Any SoC which supports the einput, odrain, lock, ioreset, or rcv_sel
options has the relevant HW register fields in the same register as the
mux function selection. Similarly, the drvtype option is always in the
drive register, if it is supported at all. Hence, we don't need to have
struct *_reg fields in the pin group table to define which register and
bank to use for those options. Delete this to save space in the driver's
data tables.

However, many of those options are not supported on all SoCs, or not
supported on some pingroups. We need a way to detect when they are
supported. Previously, this was indicated by setting the struct *_reg
field to -1. With the struct *_reg fields removed, we use the struct
*_bit fields for this purpose instead. The struct *_bit fields need to
be expanded from 5 to 6 bits in order to store a value outside the valid
HW bit range of 0..31.

Even without removing the struct *_reg fields, we still need to add code
to validate the struct *_bit fields, since some struct *_bit fields were
already being set to -1, without an option-specific struct *_reg field to
"guard" them. In other words, before this change, the pinmux driver might
allow some unsupported options to be written to HW.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 16:48:39 +02:00
Wolfram Sang
a16b81dcbf pinctrl: pfc: r8a7790: add mux data for IIC(B) cores
Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 15:39:41 +02:00
Wolfram Sang
35a493de0d pinctrl: pfc: r8a7790: add i2c0 muxing
Add the muxing for the last missing i2c rcar core. Fix the sorting for
SH_PFC_PIN_NAMED while we are here.

Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 15:38:23 +02:00
Fabio Estevam
08b519534e pinctrl: pinctrl-imx: Print the mux_mode field in hex format
With debug enabled we get better readability dumps of the mux_mode register if
we use hexadecimal format instead:

imx6sl-pinctrl 20e0000.iomuxc: MX6SL_PAD_FEC_REF_CLK: 0x10 0x0001b0a8

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 15:10:35 +02:00
Kuninori Morimoto
c57a05b0eb sh-pfc: r8a7791: Add Audio pin support
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 15:09:29 +02:00
Kuninori Morimoto
b664cd1f02 sh-pfc: r8a7791: Add SSI pin support
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 15:08:16 +02:00
Christian Ruppert
4c5fba3d4a pinctrl/TB10x: Fix signedness bug
In the TB10x pin database, a port index of -1 is used to indicate
unmuxed GPIO pin groups. This bug fixes a 'cast to unsigned' bug of
this value.

Thanks to Dan Carpenter for highlighting this.

CC: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 14:55:02 +02:00
Antoine Ténart
b6369a8f15 pinctrl: sunxi: fix typo in module author address
According to the MODULE_AUTHOR() comments, the author name should be
"Name <email>" or just "Name". Add the missing '>'.

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 14:53:24 +02:00
Antoine Ténart
e5b3b2d9ed pinctrl: allows not to define the get_group_pins operation
When using a group only pinctrl driver, which does not have any
information on the pins it is useless to define a get_group_pins
always returning an empty list of pins.

When not using get_group_pin[1], a driver must implement it so
pins = NULL and num_pins = 0. This patch makes it the default
behaviour if not defined in the pinctrl driver when used in
pinmux enable and disable funtions and in pinctrl_groups_show.

It also adds a check in pinctrl_get_group_pins and return -EINVAL if
not defined. This function is called in the gpiolib when adding when
pingroup range. It cannot be used if no group is defined, so this seams
reasonable.

[1] get_group_pin(struct pinctrl_dev *pctldev,
		  unsigned selector,
		  const unsigned **pins,
		  unsigned *num_pins);

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 14:47:02 +02:00
Boris BREZILLON
cf2908e4ff pinctrl: sunxi: add reset control support
The A31 SoC define a reset line for the R_PIO block which needs to be
deasserted.

Try to retrieve a reset control and deassert if one was found.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 13:47:43 +02:00
Boris BREZILLON
d9d0e1f658 pinctrl: sunxi: define A31 R_PIO pin functions
The A31 SoC provides both PL and PM pio bank through the R_PIO block.

These pins all support gpio function and can bbe assigned to system
peripherals (like TWI, P2WI, JTAG, ...)

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 13:45:08 +02:00
Boris BREZILLON
d83c82ce7c pinctrl: sunxi: support multiple pin controller
Add support for multiple pin controller instances.

First remove the static definition of the sunxi gpio chip struct and fill
the dynamically struct instead.
Then define a new pin_base field in the sunxi_pinctrl_desc which will be
used to specify the gpiochip base pin.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 13:42:36 +02:00
Boris BREZILLON
0aba61787f pinctrl: sunxi: add PL and PM pin definitions
Define PL and PM pin macros.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 13:41:23 +02:00
Boris BREZILLON
e2bddc6a7d pinctrl: sunxi: disable clk when failing to probe pin controller
Disable the clk when failing to probe the pin controller device.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 13:40:05 +02:00
Boris BREZILLON
6415093f7f pinctrl: sunxi: check clk_prepare_enable return value
Check the clk_prepare_enable return value to avoid false positive probe.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 13:38:35 +02:00
Maxime COQUELIN
3b02dad20f pinctrl: st: Use ARRAY_SIZE for STiH415 data
This patch completes the one that used ARRAY_SIZE for STiH407 and STiH416
for setting ninput_delays and noutput_delays fields.

Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:35 +02:00
Maxime COQUELIN
a4bc1f57fd pinctrl: st: Use const qualifier when required
This patch adds const qualifier where applicable.

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:35 +02:00
Axel Lin
edb052c3c2 pinctrl: lantiq: Fix header file include guard
Define __PINCTRL_LANTIQ_H to prevent multiple inclusion.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:35 +02:00
Axel Lin
f77329d1ed pinctrl: adi2: Statize adi_gpio_irq_domain_ops
It's only referenced in this file, make it static.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:35 +02:00
Laurent Pinchart
d10046e25c pinctrl: sh-pfc: r8a7791: Split the DU sync and cde/disp groups
The DU parallel interface ODDF signal is optional, move it out of the
HSYNC/VSYNC group into a group of its down. The CDE and DISP signals are
independent, split them to two different groups.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:35 +02:00
Uwe Kleine-König
fb95a94b04 pinctrl: msm8x74: make Kconfig dependency more strict
This driver is only useful on MSM8x74, so let the driver depend on
ARCH_QCOM but allow compile coverage testing.
The main benefit is that the driver isn't available to be selected for
machines that don't have the matching hardware.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:35 +02:00
Bjorn Andersson
e2c802be58 pinctrl: msm: Add definitions for the APQ8064 platform
This adds pinctrl definitions for the GPIO pins of the TLMM v2 block in the
Qualcomm APQ8064 platform.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:35 +02:00
Bjorn Andersson
3c25381f9b pinctrl: msm: Make number of functions variable
The various pins may have different number of functions defined, so make this
number definable per pin instead of just increasing it to the largest one for
all of the platforms.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:34 +02:00
Linus Walleij
130cbe3082 pinctrl: st: use gpiolib irqchip helpers
This lets the gpiolib core handle the irqchip set-up and
chained IRQ on the primary (behind the mux) IRQ chip in
the st pinctrl driver.

Default irq type is set to level low at irqchip add time.

The v1 was sent by Linus
(https://lkml.org/lkml/2014/4/4/287).

Two changes were necessary to make it to work properly
on STiH416:
  1 - dev reference was not passed to the gpio_chip
      struct, causing a panic.
  2 - gpiochip_irqchip_add passed IRQ_TYPE_NONE as
      default type, which caused lot of warnings at
      init time. I choose IRQ_TYPE_LEVEL_LOW as default.

Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Maxime COQUELIN <maxime.coquelin@st.com>
2014-04-22 08:41:34 +02:00
Linus Walleij
c15c0d160c pinctrl: st: switch IRQ locking to resource callbacks
In the mass-conversion to the new irqchip callbacks, this
in-transit IRQ support was missed. Fix it.

Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Cc: Maxime COQUELIN <maxime.coquelin@st.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 08:41:34 +02:00
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
Sebastian Hesselbarth
e91f7916ea pinctrl: mvebu: dove: request syscon regmap for global registers
Dove pinctrl uses some global config registers to control pins.
This patch requests a syscon regmap for those registers. As this
changes DT to driver requirements, fallback to a self-registered
regmap with hardcoded resources, if the corresponding syscon DT
node is missing. Also, WARN about old DT binding usage to encourage
users to update their DTBs.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 21:16:09 +01:00
Sebastian Hesselbarth
4d73fc7728 pinctrl: mvebu: dove: request additional resources
Dove pinctrl also requires additional registers to control all pins.
This patch requests resources for mpp4 and pmu-mpp register ranges.
As this changes DT to driver requirements, fallback to hardcoded
resources, if the corresponding DT regs have not been set.
Also, WARN about old DT binding usage to encourage users to update
their DTBs.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 21:16:08 +01:00
Thomas Petazzoni
ca6d9a084b pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 380/385
The Marvell Armada 380/385 are new ARM SoCs from Marvell, part of the
mvebu family, but using a Cortex-A9 CPU core. In terms of pin-muxing,
it is similar to Armada 370 and XP for the register layout, only
different in the number of available pins and their
functions. Therefore, we simply use the existing
drivers/pinctrl/mvebu/ infrastructure, with no other changes that the
list of pins and corresponding functions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2014-02-25 18:51:05 +01:00
Thomas Petazzoni
ce3ed59dcd pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 375
The Marvell Armada 375 is a new ARM SoC from Marvell, part of the
mvebu family, but using a Cortex-A9 CPU core. In terms of pin-muxing,
it is similar to Armada 370 and XP for the register layout, only
different in the number of available pins and their
functions. Therefore, we simply use the existing
drivers/pinctrl/mvebu/ infrastructure, with no other changes that the
list of pins and corresponding functions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2014-02-25 18:51:01 +01:00
Sebastian Hesselbarth
78c2c3d3da pinctrl: mvebu: dove: reuse mpp_{set,get} in pmu callbacks
Dove has pins that can be switched between normal and pmu functions.
Rework pmu_mpp callbacks to reuse default mpp ctrl helpers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2014-02-25 18:38:41 +01:00
Sebastian Hesselbarth
c2f082fe97 pinctrl: mvebu: dove: consolidate auto-numbered pmu mpp ranges
Passing a NULL name for pin ranges will auto-generate standard names
for each pin. With common pinctrl driver now checking NULL name correctly,
consolidate mpp pins 0-15.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2014-02-25 18:38:37 +01:00
Thomas Petazzoni
cffa7a6b10 pinctrl: mvebu: remove MPP_REG_CTRL macro
Now that each per-SoC pinctrl driver must implement its own get/set
functions, there is no point in keeping the MPP_REG_CTRL macro, whose
purpose was to let the core pinctrl mvebu driver use default get/set
functions. While at it also update the comment about mvebu_mpp_ctrl.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2014-02-25 18:38:31 +01:00
Sebastian Hesselbarth
faaa8325ad pinctrl: mvebu: remove common get/set functions
With every SoC always providing its own get/set callbacks, we can now
remove the generic ones, remove the obsolete base address, and always
use the provided callbacks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-02-25 18:38:24 +01:00
Sebastian Hesselbarth
1217b790ae pinctrl: mvebu: move resource allocation to SoC specific drivers
The way that mvebu pinctrl is designed, requesting mpp registers
in common pinctrl driver does not allow SoC specific drivers to
access this resource.

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

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-02-25 18:37:53 +01:00
Sebastian Hesselbarth
ad2a4f2b80 pinctrl: mvebu: armada-xp: provide generic mpp callbacks
We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-02-25 18:35:41 +01:00
Sebastian Hesselbarth
877f01fc4d pinctrl: mvebu: armada-370: provide generic mpp callbacks
We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2014-02-25 18:35:35 +01:00
Sebastian Hesselbarth
3a25f9f2f7 pinctrl: mvebu: kirkwood: provide generic mpp callbacks
We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
2014-02-25 18:35:30 +01:00
Sebastian Hesselbarth
17bdec6770 pinctrl: mvebu: dove: provide generic mpp callbacks
We want to get rid of passing register addresses to common pinctrl
driver, so provide set/get callbacks that use generic mpp pins helper
and will be used later. While at it, also make use of globally defined
MPP macros.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2014-02-25 18:35:24 +01:00
Sebastian Hesselbarth
f5b85e42d4 pinctrl: mvebu: add common mpp reg helper to mvebu pinctrl include
This adds some defines and helper functions for the common mpp reg
layout to mvebu pinctrl include.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
2014-02-25 18:35:16 +01:00
Sebastian Hesselbarth
2035d39da1 pinctrl: mvebu: remove passing mvebu_mpp_ctrl to callbacks
The only valuable information a special callback can derive from
mvebu_mpp_ctrl passed to it, is the pin id. Instead of passing
the struct, pass the pid directly.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-02-25 18:34:51 +01:00
Sebastian Hesselbarth
e310b74544 pinctrl: mvebu: identify generic controls by name
We treat unnamed controls as generic mvebu mpp register controls but
we identify them by not being special controls. Flip the logic and
use the name pointer as identification instead. While at it, add some
comments explaining the not so obvious treatment.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-02-25 18:34:45 +01:00
Sebastian Hesselbarth
dc2a90004e pinctrl: mvebu: remove obsolete per-control name buffer allocation
With the introduction of a global name buffer, we can now remove
the allocation and preparation of per-control name buffers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-02-25 18:34:41 +01:00
Sebastian Hesselbarth
8d898fd596 pinctrl: mvebu: count unnamed controls and allocate name buffer
pinctrl-mvebu allows SoCs to pass unnamed controls that will get an
auto-generated name of "mpp<PIN#>". Currently, we are allocating name
buffers on a per-control basis while looping over passed controls.
This counts the total number of unnamed controls and allocates a
global name buffer instead. The new buffer is then used while assigning
controls to pinctrl groups later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-02-25 18:34:34 +01:00
Wolfram Sang
6787141361 pinctrl: pfc: r8a7791: add mux data for IIC(B) cores
Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:15 +01:00
Richard Genoud
8af584b868 pinctrl: at91: implement get_direction
This is needed for gpiod_get_direction().
Otherwise, it returns -EINVAL.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:15 +01:00
Martin Fuzzey
7c001e556e pinctrl: imx: Fix pin name in debug message.
The wrong index counter was being used, causing the debug message
to show an incorrect pin name.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:14 +01:00
Hans de Goede
885d662618 pinctrl-sunxi: Fix sun5i-a13 port F multiplexing
The correct value for selecting the mmc0 function on port F pins is 2 not 4,
as per the data-sheet:
http://dl.linux-sunxi.org/A13/A13%20Datasheet%20-%20v1.12%20%282012-03-29%29.pdf

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:14 +01:00
Sonic Zhang
e3653749aa pinctrl: pinctrl-adi: combine multiple groups of one function together
The data pins of some peripheral are different if connecting to different
devices in one pinmux function. In the PPI case, data pins can be used
in 8, 16 and 24 pin groups individually. Add these groups into one ppi
function.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:13 +01:00
Barry Song
019c12f474 pinctrl: sirf: update copyright years to 2014
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:13 +01:00
Ulf Hansson
c003eed7a0 pinctrl: nomadik: Convert to modern pm_ops
Use the SIMPLE_DEV_PM_OPS macro and convert to the modern pm ops.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:12 +01:00
Ulf Hansson
131d85bc3a pinctrl: nomadik: Silence compiler warn for !CONFIG_PM
The static suspend/resume functions were not being used while
!CONFIG_PM. Fix it and convert to CONFIG_PM_SLEEP.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:12 +01:00
Geert Uytterhoeven
202909cdf1 pinctrl: sh-pfc: r8a7790: Add QSPI pin groups
A QSPI function set consists of 3 groups:
  - qspi_ctrl (2 control wires)
  - qspi_data2 (2 data wires, for Single/Dual SPI)
  - qspi_data4 (4 data wires, for Quad SPI)

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:11 +01:00
Ivan T. Ivanov
dc1791188b pinctrl-msm: Add SPI8 pin definitions
Add pin, group and function definitions for SPI#8
controller.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:11 +01:00
Christian Daudt
d0deca0276 pinctrl: refer to updated dt binding string.
Bring the driver in line with the bcm-based dt name for pinctrl.
This is being done to keep consistency with other Broadcom mobile
SoC drivers.

Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
2014-02-24 20:25:54 -08:00
Mark Brown
5d88dceac7 pinctrl: Quiet logging about missing DT nodes when not using DT
On systems which were not booted using DT it is entirely unsurprising that
device nodes don't have any DT information and this is going to happen for
every single device in the system. Make pinctrl be less chatty about this
situation by only logging in the case where we have DT.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-24 10:44:54 +01:00
Magnus Damm
97e00faaf1 pinctrl: sh-pfc: r8a7790: Break out USB0 OVC/VBUS
Create a new group for the USB0 OVC/VBUS pin by itself. This
allows us to monitor PWEN as GPIO on the Lager board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-11 09:35:19 +01:00
Young-Gun Jang
9a8b607972 pinctrl: exynos: add exynos5260 SoC specific data
Adds pinctrl support for all platforms based on EXYNOS5260 SoC.

Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Young-Gun Jang <yg1004.jang@samsung.com>
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-11 09:35:19 +01:00