When running -rt kernel and an interrupt happens on a GPIO line controlled by
Intel Cherryview/Braswell pinctrl driver we get:
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0
Preemption disabled at:[<ffffffff81092e9f>] cpu_startup_entry+0x17f/0x480
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.5-rt5 #16
...
Call Trace:
<IRQ> [<ffffffff816283c6>] dump_stack+0x4a/0x61
[<ffffffff81077e17>] ___might_sleep+0xe7/0x170
[<ffffffff8162d6cf>] rt_spin_lock+0x1f/0x50
[<ffffffff812e52ed>] chv_gpio_irq_ack+0x3d/0xa0
[<ffffffff810a72f5>] handle_edge_irq+0x75/0x180
[<ffffffff810a3457>] generic_handle_irq+0x27/0x40
[<ffffffff812e57de>] chv_gpio_irq_handler+0x7e/0x110
[<ffffffff810050aa>] handle_irq+0xaa/0x190
...
This is because desc->lock is raw_spinlock and is held when chv_gpio_irq_ack()
is called by the genirq core. chv_gpio_irq_ack() in turn takes pctrl->lock
which in -rt is an rt-mutex causing might_sleep() rightfully to complain about
sleeping function called from invalid context.
In order to keep -rt happy but at the same time make sure that register
accesses get serialized, convert the driver to use raw_spinlock instead.
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Intel Baytrail pinctrl driver implements irqchip callbacks which are
called with desc->lock raw_spinlock held. In mainline this is fine because
spinlock resolves to raw_spinlock. However, running the same code in -rt we
get:
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0
Preemption disabled at:[<ffffffff81092e9f>] cpu_startup_entry+0x17f/0x480
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.5-rt5 #13
...
Call Trace:
<IRQ> [<ffffffff816283c6>] dump_stack+0x4a/0x61
[<ffffffff81077e17>] ___might_sleep+0xe7/0x170
[<ffffffff8162d6cf>] rt_spin_lock+0x1f/0x50
[<ffffffff812e3b88>] byt_gpio_clear_triggering+0x38/0x60
[<ffffffff812e3bc1>] byt_irq_mask+0x11/0x20
[<ffffffff810a7013>] handle_level_irq+0x83/0x150
[<ffffffff810a3457>] generic_handle_irq+0x27/0x40
[<ffffffff812e3a5f>] byt_gpio_irq_handler+0x7f/0xc0
[<ffffffff810050aa>] handle_irq+0xaa/0x190
...
This is because in -rt spinlocks are preemptible so taking the driver
private spinlock in irqchip callbacks causes might_sleep() to trigger.
In order to keep -rt happy but at the same time make sure that register
accesses get serialized, convert the driver to use raw_spinlock instead.
Also shorten the critical section a bit in few places.
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
platform_driver does not need to set an owner as it will be
populated by the driver core.
The semantic patch that makes this change is available
in scripts/coccinelle/api/platform_no_drv_owner.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Group names should be smc0_nand_grp and smc0_nor_grp, otherwise you'll
get errors like this if you try to pinmux them via the devicetree:
zynq-pinctrl 700.pinctrl: invalid group "smc0_nand_grp" for function "smc0_nand"
Probably a typo while creating these tables.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pfc in the R8A7790 (and probably others in the R-Car gen 2 family)
supports switching SDHI signals between 3.3V and 1.8V nominal voltage,
and the SD driver should do that when switching to and from UHS modes.
Add a flag for pins that have configurable I/O voltage and SoC
operations to get and set the nominal voltage. Implement the pinconf
power-source parameter using these operations.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If the gpio DT node has the gpio-ranges property, the range will be
added by the gpio core and doesn't need to be added by the pinctrl
driver.
By having the gpio-ranges property, we have an explicit dependency from
the gpio node to the pinctrl node and we can stop using the deprecated
pinctrl_add_gpio_range() function.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
To set/get atlas7 pull & drive strength, we use lots of if/else
to check pad type. But except mask value or immediate value, all
actions in these conditional branches are the same.
So we use predefined pull info table and drive strength table
to reduce these redundancy code.
Signed-off-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There is a hardware issue in Intel Baytrail where concurrent GPIO register
access might result reads of 0xffffffff and writes might get dropped
completely.
Prevent this from happening by taking the serializing lock in all places
where it is possible that more than one thread might be accessing the
hardware concurrently.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The FSF address is already mentioned in the COPYING file. No need to
duplicate that information to individual files.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
gpio can keep state even the clock disable, for save power
consumption, only enable gpio clock when it setting
Signed-off-by: Lin Huang <hl@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Trivial change, fix spelling mistake 'invaild' -> 'invalid' in
dev_err message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There is a hardware issue in Intel Braswell/Cherryview where concurrent
GPIO register access might results reads of 0xffffffff and writes might get
dropped.
Prevent this from happening by taking the serializing lock for all places
where it is possible that more than one thread might be accessing the
hardware concurrently.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The initial version of this driver missed to add I2C ch6 pin-muxing.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
These are user-visible strings, so can exceed 80 columns.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We had not implemented the pm interface of atlas7 pinctrl
and gpio drivers. So when system resumes from sleep, all
pin configuration and gpio status will be lost.
Now, we implement these interfaces to support pm.
At the same time, this patch also drops a lot of if-else
by look-up table for getting and setting pull.
Signed-off-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Split the UART pin groups so we can activate RX/TX, CTS/RTS and
the modem pins (DCD, DSR, RI, DTR) as three different groups
with function u0.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:
IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN
For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed. There appears to be a great deal of
blind copy and paste of this code.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We no longer have to do GPIO initialization before the
pinctrl initialization, instead we can initialize the pinctrl
portions of the driver first and then the GPIO. Thus we can
move GPIO initialization to a subsystem_initcall(), but
not yet to a device_initcall().
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This gets the GPIO ranges out of the driver and into the device
tree where they belong. Standard DT bindings already exist for
this. Since no systems with this are deployed we can just augment
all device trees and the drivers at the same time and simplify
the world.
This also defines the array of GPIO chips related to the pin
controller.
Cc: arm@kernel.org
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The current interrupt parsing code was working by accident, because the
default was actually parsing the first node of interrupts.
While that was mostly working (and the flags were actually ignored), this
binding has never been documented, and doesn't work with SoCs that have
multiple interrupt banks anyway.
Add a proper interrupt xlate function, that uses the same description than
the GPIOs (<bank> <pin> <flags>), that will make things less confusing.
The EINT number will still be used as the hwirq number, but won't be
exposed through the DT.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use dev_err() rather than pr_err() to display the error message.
pinctrl_dev_get_name(pctldev) is no longer necessary because
dev_err() shows which device the message is related to.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use dev_err() rather than pr_err() to display the error message.
(Besides, dev_err() is already used 7 lines below in this function.)
Also, drop the redundant information "on %s" because dev_err() shows
which device the message is related to.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In order to ease the debugging, add a name to the irq_chips.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The current code uses some custom variable affectations, while we have
common functions to do exactly that. Move to the common functions.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds pinctrl and gpio driver to the CX92755 SoC "General
Purpose Pin Mapping" hardware block. The CX92755 is one SoC
from the Conexant Digicolor series. Pin mapping hardware supports
configuring pins as either GPIO, or up to 3 other "client select"
functions. This driver adds support for pin muxing using the
generic device tree binding, and a basic gpiolib driver for
the GPIO functionality.
This driver does not currently support GPIO interrupts, and
pad configuration.
v2:
* Address review comments for Linus Walleij:
- Add a pointer to pinctrl_desc in struct dc_pinmap
- Drop the now redundant pinctrl_pin_desc field
- Adapt dc_get_group_{name,pins} to these changes, and
add a comment explaining the 1-to-1 pin-groups relation
* Staticise dc_pmxops
* Protect the GP_CLIENTSEL clct parameter with parenthesis
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If the pin controller probes before the GPIO driver it needs to
populate the GPIO driver state containers ahead of the actual
driver probe as the addresses are used by both halves of the
driver.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Instead of indexing around the GPIO ranges to find a chip, look directly
in the local array of state containers for nmk_gpio_chip:s.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Break out the function that allocates the nomadik GPIO chip state
container to its own function.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Some dead defines dropped from the Samsung driver, was
targeted for -rc2 but got delayed
- Drop the strict mode from abx500, this was too strict
- Fix the R-Car sparse IRQs code to work as intended
- Fix the IRQ code for the pinctrl-single GPIO backend to not
enforce threaded IRQs
- Clear the latched events/IRQs for the Broadcom BCM2835
driver
- Fix up debugfs for the Freescale imx1 driver
- Fix a typo bug in the Schmitt Trigger setup in the LPC18xx
driver
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Merge tag 'pinctrl-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here are some overly ripe pin control fixes for the v4.2 series.
They got delayed because of various crap commits and having to clean
and rinse the patch stack a few times. Now they are however looking
good.
- some dead defines dropped from the Samsung driver, was targeted for
-rc2 but got delayed
- drop the strict mode from abx500, this was too strict
- fix the R-Car sparse IRQs code to work as intended
- fix the IRQ code for the pinctrl-single GPIO backend to not enforce
threaded IRQs
- clear the latched events/IRQs for the Broadcom BCM2835 driver
- fix up debugfs for the Freescale imx1 driver
- fix a typo bug in the Schmitt Trigger setup in the LPC18xx driver"
* tag 'pinctrl-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: lpc18xx: fix schmitt trigger setup
Subject: pinctrl: imx1-core: Fix debug output in .pin_config_set callback
pinctrl: bcm2835: Clear the event latch register when disabling interrupts
pinctrl: single: ensure pcs irq will not be forced threaded
sh-pfc: fix sparse GPIOs for R-Car SoCs
pinctrl: abx500: remove strict mode
pinctrl: samsung: Remove old unused defines
The param_val variable is what determines if schmitt
trigger is enabled on a pin or not. A typo here mean
that schmitt trigger was always enabled for standard
and i2c pins.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
imx1_pinconf_set assumes that the array of pins in struct
imx1_pinctrl_soc_info can be indexed by pin id to get the
pinctrl_pin_desc for a pin. This used to be correct up to commit
607af165c0 which removed some entries from the array and so made it
wrong to access the array by pin id.
The result of this bug is a wrong pin name in the output for small pin
ids and an oops for the bigger ones.
This patch is the result of a discussion that includes patches by Markus
Pargmann and Chris Ruehl.
Fixes: 607af165c0 ("pinctrl: i.MX27: Remove nonexistent pad definitions")
Cc: stable@vger.kernel.org
Reported-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It's possible to hit a race condition if interrupts are generated on a GPIO
pin when the IRQ line in question is being disabled.
If the interrupt is freed, bcm2835_gpio_irq_disable() is called which
disables the event generation sources (edge, level). If an event occurred
between the last disabling of hard IRQs and the write to the event
source registers, a bit would be set in the GPIO event detect register
(GPEDSn) which goes unacknowledged by bcm2835_gpio_irq_handler()
so Linux complains loudly.
There is no per-GPIO mask register, so when disabling GPIO interrupts
write 1 to the relevant bit in GPEDSn to clear out any stale events.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The PFC driver causes the kernel to hang on the R-Car gen2 SoC based boards
when the CPU_ALL_PORT() macro is fixed to reflect the reality, i.e. when the
GPIO space becomes actually sparse. This happens because the _GP_GPIO() macro
includes an indexed initializer which causes the "holes" (array entries filled
with all 0s) between the groups of the existing GPIOs; and the driver can't
cope with that. There seems to be no reason to use the indexed initializer,
so we can remove the index specifier and so avoid the "holes".
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit a21763a0b1
"pinctrl: nomadik: activate strict mux mode"
put all Nomadik pin controllers to strict mode. This was
not good on the Snowball platform: the muxing of GPIOs to
different pins is done with hogs in the DTS file, and then
these GPIOs are used by offset, relying on hogs to mux the
pins. Since that means the pin controller "owns" the pins
and at the same time we have a GPIO user, this pin controller
is by definition not strict.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Switch to my kernel.org alias instead of a badly named gmail address,
which I rarely use.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and update was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor.
Search and replacement was done with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.
Search and conversion was done with coccinelle.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.
Search and conversion was done with coccinelle.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.
Search and conversion was done with coccinelle.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Add the pinctrl driver for the Qualcomm Technologies QDF2xxx ARM64 SoCs,
which uses the Qualcomm Technologies TLMM pinctrl/gpio device. This
driver is probed via ACPI and uses the pinctrl-msm.c backend driver.
This driver is intended to be used only an ACPI-enabled system. As such,
UEFI will handle all pin control configuration, so this driver does not
provide pin control functions. It is effectively a GPIO-only driver.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This introduces pinctrl drivers for gpio and mpp blocks found in family A
PMICs.
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The "function" of the MPP driver was inherited from the GPIO driver, but the
differences between the two hardware blocks makes both the driver and the
device tree binding to be awkward.
Instead of overloading the "normal" function with various modes this patch
transposes the pinmux function to represent the three operating modes of the
MPP (digital, analog and current sink). The properties of pin pairing and DTEST
routing is moved to separate properties.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When the MPP is configured for analog output the output level is selected by
the AOUT_CTL register, this patch makes it possible to control this.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The dedicated USB1 pins can be configured with pull-down and
for low power mode (suspend). Add support for this in the
pinctrl driver.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The function pinconf_dbg_config_print() only prints the configuration of
the 1st pin config in an array of pin configurations. Fix this so that
all pin configurations in the array are displayed.
There are a few places in the code where the pin configs are displayed
and so add a helper function to display the pin configs to simplify the
code.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The function pinconf_dbg_config_write() currently only supports configuring
a pin configuration mapping via the debugfs. Allow group mappings to also
be configured via the debugfs.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Assign pm_power_off() if we have the PS_HOLD functionality so
that we can properly shutdown the SoC. Otherwise, shutdown won't
do anything besides put the CPU into a tight loop. Unfortunately,
we have to use a singleton here because pm_power_off() doesn't
take any arguments. Fortunately there's only one instance of the
pinctrl device on a running system so this isn't a problem.
Cc: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since 9a2c1c3b91 ("pinctrl: samsung: Allow grouping multiple
pinmux/pinconf nodes") the defines for GPIO group and function names are
not used anywhere in the driver.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Inspired-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
platform_driver does not need to set an owner because
platform_driver_register() will set it.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On DRA7 there is one pinctrl domain (dra7_pmx_core) and
PRCM wake-up IRQ is not shared, so remove quirk.
Cc: Nishanth Menon <nm@ti.com>
Fixes: 31320beaa3 ('pinctrl: single: Add DRA7 pinctrl compatibility')
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since the removal of the r8a7740 legacy SoC code in commit
44d88c754e ("ARM: shmobile: Remove legacy SoC code for R-Mobile
A1"), r8a7740 is only supported in generic DT-only ARM multi-platform
builds. The driver doesn't need to match platform devices by name
anymore, hence remove the corresponding platform_device_id entry.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since the removal of the r8a7740 legacy SoC code in commit
44d88c754e ("ARM: shmobile: Remove legacy SoC code for R-Mobile
A1"), r8a7740 is only supported in generic ARM multi-platform builds.
Hence CONFIG_ARCH_MULTIPLATFORM is always set, and the check can be
removed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since the removal of the sh73a0 legacy SoC code in commit
9a9863987b ("ARM: shmobile: Remove legacy SoC code for SH-Mobile
AG5"), sh73a0 is only supported in generic DT-only ARM multi-platform
builds. The driver doesn't need to match platform devices by name
anymore, hence remove the corresponding platform_device_id entry.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since the removal of the sh73a0 legacy SoC code in commit
9a9863987b ("ARM: shmobile: Remove legacy SoC code for SH-Mobile
AG5"), sh73a0 is only supported in generic ARM multi-platform builds.
Hence CONFIG_ARCH_MULTIPLATFORM is always set, and the check can be
removed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If the pin function controller (which can be a GPIO controller) is
instantiated before the interrupt controllers, due to the ordering in
the DTS, the irq domains for the interrupt controllers referenced by its
"interrupts-extended" property cannot be found yet:
irq: no irq domain found for /interrupt-controller@e61c0000 !
As the sh-pfc driver accesses the platform device's resources directly,
it cannot find the (optional) IRQ resources, and thinks no interrupts
are available. This may lead to failures later, when GPIOs are used as
interupts:
gpio-keys keyboard: Unable to claim irq 0; error -22
gpio-keys: probe of keyboard failed with error -22
To fix this, add support for deferred probing to sh-pfc, by converting
the driver from direct platform device resource access to using the
platform_get_resource() and platform_get_irq() helpers.
Note that while this fixes the root cause worked around by commit
e4ba0a9bdd ("ARM: shmobile: r8a73a4: Move pfc node to work around
probe ordering bug"), I strongly recommend against reverting the
workaround now, as this would lead to lots of probe deferrals in drivers
relying on pinctrl. This may be reconsidered once the DT code starts
taking into account phandle dependencies during device instantation.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The "function", "pins" and "groups" pinmux and pinctrl properties have
been standardized. Support them in addition to the custom "renesas,*"
properties. New-style and old-style properties can't be mixed in DT.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Checkpatch.pl complains about these:
WARNING: Possible unnecessary 'out of memory' message
The messages use a little extra RAM and they add a few extra lines of
code. We're probably never going to hit these out of memory situations
but if we did then kmalloc() has pretty good error messages built-in.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We were allocating enough space because sizeof("-grp") and
sizeof("-mux") are both equal to 5 but in the snprintf() we only allowed
for 4 characters so the last 'p' and 'x' characters were truncated.
The allocate and sprintf can be done in one step with the kasprintf().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Kbuild should descend into drivers/pinctrl/ only when CONFIG_PINCTRL
is enabled because everything under that directory depends on
CONFIG_PINCTRL.
We can avoid the conditional, ifeq ($(CONFIG_OF),y) ... endif.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pin configuration and pinmux support for UniPhier PH1-LD6b SoC.
Changes in v2:
- sort groups and funcs alphabetically
- add i2c pin-mux settings
- sort members of platform_driver
- change to tristate
- add THIS_MODULE to pinctrl_desc
- use module_platform_driver
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pin configuration and pinmux support for UniPhier ProXstream2
SoC.
Changes in v2:
- sort groups and funcs alphabetically
- add i2c pin-mux settings
- sort members of platform_driver
- change to tristate
- add THIS_MODULE to pinctrl_desc
- use module_platform_driver
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pin configuration and pinmux support for UniPhier PH1-Pro5 SoC.
Changes in v2:
- sort groups and funcs alphabetically
- add i2c pin-mux settings
- sort members of platform_driver
- change to tristate
- add THIS_MODULE to pinctrl_desc
- use module_platform_driver
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pin configuration and pinmux support for UniPhier PH1-sLD8 SoC.
Changes in v2:
- sort groups and funcs alphabetically
- add i2c pin-mux settings
- sort members of platform_driver
- change to tristate
- add THIS_MODULE to pinctrl_desc
- use module_platform_driver
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pin configuration and pinmux support for UniPhier PH1-Pro4 SoC.
Changes in v2:
- sort groups and funcs alphabetically
- add i2c pin-mux settings
- sort members of platform_driver
- change to tristate
- add THIS_MODULE to pinctrl_desc
- use module_platform_driver
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pin configuration and pinmux support for UniPhier PH1-LD4 SoC.
Changes in v2:
- sort groups and funcs alphabetically
- add missing "emmc_dat8" group
- add i2c pin-mux settings
- sort members of platform_driver
- change to tristate
- add THIS_MODULE to pinctrl_desc
- use module_platform_driver
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The core support for the pinctrl drivers for all the UniPhier SoCs.
Changes in v2:
- drop vogus THIS_MODULE because this file is always built-in
- drop vogus "include <linux/module.h> because this file is
always built-in
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The MPP supports three modes; digital, analog and sink mode. This patch
implements support for the latter.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There's currently no way to re-enable a mpp block once you've entered a state
that disables the state, this patch makes it possible to leave the
bias-high-impedance state.
Also read the enable state from the hardware on probe.
With this in place the is_enabled variable is accurately tracking the state of
the hardware and we can use that for the debug output as well.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use the newly introduced extensible generic dt parser instead of rolling
our own dt parsing functions.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit does not change the logic at all.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tabs have been inserted instead of spaces to indent the code
correctly. Same error fixed four times.
Signed-off-by: Mario Bambagini <mario.bambagini@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pull irq fixes from Thomas Gleixner:
"This contains:
- a series of fixes for interrupt drivers to prevent a potential race
when installing a chained interrupt handler
- a fix for cpumask pointer misuse
- a fix for using the wrong interrupt number from struct irq_data
- removal of unused code and outdated comments
- a few new helper functions which allow us to cleanup the interrupt
handling code further in 4.3
I decided against doing the cleanup at the end of this merge window
and rather do the preparatory steps for 4.3, so we can run the final
ABI change at the end of the 4.3 merge window with less risk"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
ARM/LPC32xx: Use irq not hwirq for __irq_set_handler_locked()
genirq: Implement irq_set_handler_locked()/irq_set_chip_handler_name_locked()
genirq: Introduce helper irq_desc_get_irq()
genirq: Remove irq_node()
genirq: Clean up outdated comments related to include/linux/irqdesc.h
mn10300: Fix incorrect use of irq_data->affinity
MIPS/ralink: Fix race in installing chained IRQ handler
MIPS/pci: Fix race in installing chained IRQ handler
MIPS/ath25: Fix race in installing chained IRQ handler
MIPS/ath25: Fix race in installing chained IRQ handler
m68k/psc: Fix race in installing chained IRQ handler
avr32/at32ap: Fix race in installing chained IRQ handler
sh/intc: Fix race in installing chained IRQ handler
sh/intc: Fix potential race in installing chained IRQ handler
pinctrl/sun4i: Fix race in installing chained IRQ handler
pinctrl/samsung: Fix race in installing chained IRQ handler
pinctrl/samsung: Fix race in installing chained IRQ handler
pinctrl/exynos: Fix race in installing chained IRQ handler
pinctrl/st: Fix race in installing chained IRQ handler
pinctrl/adi2: Fix race in installing chained IRQ handler
...
Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses
Conflicts:
arch/arm64/boot/dts/arm/juno-motherboard.dtsi
Trivial add/add conflict with our dt branch.
Resolution: take both sides.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Kevin Hilman:
"Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
drivers: soc: sunxi: Introduce SoC driver to map SRAMs
arm-cci: Add aliases for PMU events
arm-cci: Add CCI-500 PMU support
arm-cci: Sanitise CCI400 PMU driver specific code
arm-cci: Abstract handling for CCI events
arm-cci: Abstract out the PMU counter details
arm-cci: Cleanup PMU driver code
arm-cci: Do not enable CCI-400 PMU by default
firmware: qcom: scm: Add HDCP Support
ARM: berlin: add an ADC node for the BG2Q
ARM: berlin: remove useless chip and system ctrl compatibles
clk: berlin: drop direct of_iomap of nodes reg property
ARM: berlin: move BG2Q clock node
ARM: berlin: move BG2CD clock node
ARM: berlin: move BG2 clock node
clk: berlin: prepare simple-mfd conversion
pinctrl: berlin: drop SoC stub provided regmap
ARM: berlin: move pinctrl to simple-mfd nodes
pinctrl: berlin: prepare to use regmap provided by syscon
reset: berlin: drop arch_initcall initialization
...
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Fan Wu <fwu@marvell.com>
Cc: abdoulaye berthe <berthe.ab@gmail.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com>
Cc: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kernel@stlinux.com
Cc: linux-gpio@vger.kernel.org
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
Search and conversion was done with coccinelle:
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
- BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Hongzhou Yang <hongzhou.yang@mediatek.com>
Cc: Axel Lin <axel.lin@ingics.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Maoguang Meng <maoguang.meng@mediatek.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
- Core functionality:
- Enable exclusive pin ownership: it is possible to flag a pin
controller so that GPIO and other functions cannot use a single
pin simultaneously.
- New drivers:
- NXP LPC18xx System Control Unit pin controller
- Imagination Pistachio SoC pin controller
- New subdrivers:
- Freescale i.MX7d SoC
- Intel Sunrisepoint-H PCH
- Renesas PFC R8A7793
- Renesas PFC R8A7794
- Mediatek MT6397, MT8127
- SiRF Atlas 7
- Allwinner A33
- Qualcomm MSM8660
- Marvell Armada 395
- Rockchip RK3368
- Cleanups:
- A big cleanup of the Marvell MVEBU driver rectifying it to
correspond to reality
- Drop platform device probing from the SH PFC driver, we are now a
DT only shop for SuperH
- Drop obsolte multi-platform check for SH PFC
- Various janitorial: constification, grammar etc
- Improvements:
- The AT91 GPIO portions now supports the set_multiple() feature
- Split out SPI pins on the Xilinx Zynq
- Support DTs without specific function nodes in the i.MX driver
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Merge tag 'pinctrl-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"Here is the bulk of pin control changes for the v4.2 series: Quite a
lot of new SoC subdrivers and two new main drivers this time, apart
from that business as usual.
Details:
Core functionality:
- Enable exclusive pin ownership: it is possible to flag a pin
controller so that GPIO and other functions cannot use a single pin
simultaneously.
New drivers:
- NXP LPC18xx System Control Unit pin controller
- Imagination Pistachio SoC pin controller
New subdrivers:
- Freescale i.MX7d SoC
- Intel Sunrisepoint-H PCH
- Renesas PFC R8A7793
- Renesas PFC R8A7794
- Mediatek MT6397, MT8127
- SiRF Atlas 7
- Allwinner A33
- Qualcomm MSM8660
- Marvell Armada 395
- Rockchip RK3368
Cleanups:
- A big cleanup of the Marvell MVEBU driver rectifying it to
correspond to reality
- Drop platform device probing from the SH PFC driver, we are now a
DT only shop for SuperH
- Drop obsolte multi-platform check for SH PFC
- Various janitorial: constification, grammar etc
Improvements:
- The AT91 GPIO portions now supports the set_multiple() feature
- Split out SPI pins on the Xilinx Zynq
- Support DTs without specific function nodes in the i.MX driver"
* tag 'pinctrl-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
pinctrl: rockchip: add support for the rk3368
pinctrl: rockchip: generalize perpin driver-strength setting
pinctrl: sh-pfc: r8a7794: add SDHI pin groups
pinctrl: sh-pfc: r8a7794: add MMCIF pin groups
pinctrl: sh-pfc: add R8A7794 PFC support
pinctrl: make pinctrl_register() return proper error code
pinctrl: mvebu: armada-39x: add support for Armada 395 variant
pinctrl: mvebu: armada-39x: add missing SATA functions
pinctrl: mvebu: armada-39x: add missing PCIe functions
pinctrl: mvebu: armada-38x: add ptp functions
pinctrl: mvebu: armada-38x: add ua1 functions
pinctrl: mvebu: armada-38x: add nand functions
pinctrl: mvebu: armada-38x: add sata functions
pinctrl: mvebu: armada-xp: add dram functions
pinctrl: mvebu: armada-xp: add nand rb function
pinctrl: mvebu: armada-xp: add spi1 function
pinctrl: mvebu: armada-39x: normalize ref clock naming
pinctrl: mvebu: armada-xp: rename spi to spi0
pinctrl: mvebu: armada-370: align spi1 clock pin naming
pinctrl: mvebu: armada-370: align VDD cpu-pd pin naming with datasheet
...
The rk3368 is the first ARM64 soc from Rockchip, but seems to share most
peripherals with the ARM32 soc, including the pinctrl functionality.
The only notable difference is - as with every Rockchip soc - that the
offsets in the General Register Files moved around and a split of the pmu
section of the rk3288 into pmu and pmugrf (pmu general register files)
sections. The pinctrl driver of course only needs the pmugrf registers
for controlling the pin settings.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The upcoming support for the RK3368 ARM64 SoC also supports perpin
drive strength settings (at different register positions), so generalize
the register and offset calculation to easily support this one too.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add PFC support for the R8A7794 SoC including pin groups for some
on-chip devices such as ETH, I2C, INTC, MSIOF, QSPI, [H]SCIF...
Sergei: squashed together several patches, fixed the MLB_CLK typo,
added IRQ4.. IRQ9 pin groups, fixed IRQn comments, added ETH B pin
group names, removed stray new line and fixed typos in the comments
in the pinmux_config_regs[] initializer, removed the platform device
ID, took into account limited number of signals in the GPIO1/5/6
controllers, added reasonable and removed unreasonable
copyrights, modified the bindings document, renamed, added changelog.
Changes in version 5:
- resolved rejects, refreshed the patch;
- added Laurent Pinchart's ACK.
Changes in version 4:
- reused the PORT_GP_26() macro to #define PORT_GP_28().
Changes in version 3:
- removed the platform device ID;
- added PORT_GP_26() and PORT_GP_28() macros, used them for GPIO1/5/6 in the
CPU_ALL_PORT() macro.
Changes in version 2:
- rebased the patch.
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently, pinctrl_register() just returns NULL on error, so the
callers can not know the exact reason of the failure.
Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some
-ENOMEM on error of pinctrl_register(), although the error code
might be different from the real cause of the error.
This commit reworks pinctrl_register() to return the appropriate
error code and modifies all of the pinctrl drivers to use IS_ERR()
for the error checking and PTR_ERR() for getting the error code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Ray Jui <rjui@broadcom.com>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Acked-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Armada 39x SoC family has grown a new variant, the Armada 395,
which sits between the Armada 390 and Armada 398 in terms of
features. This commit adds support for this additional variant to the
Armada 39x pinctrl driver.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada 39x datasheet documents several new
SATA related functions on various MPP pins. This commit adds the
description of these new functions to the Armada 39x pinctrl driver as
well as to its DT binding documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada 39x datasheet documents several new
PCIe related functions on various MPP pins. This commit adds the
description of these new functions to the Armada 39x pinctrl driver as
well as to its DT binding documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada 38x datasheet documents several new
PTP related functions on various MPP pins. This commit adds the
description of these new functions to the Armada 38x pinctrl driver as
well as to its DT binding documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada 38x datasheet documents several new
UART1 related functions on various MPP pins. This commit adds the
description of these new functions to the Armada 38x pinctrl driver as
well as to its DT binding documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada 38x datasheet documents several new
NAND related functions on various MPP pins. This commit adds the
description of these new functions to the Armada 38x pinctrl driver as
well as to its DT binding documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada 38x datasheet documents several new
SATA related functions on various MPP pins. This commit adds the
description of these new functions to the Armada 38x pinctrl driver as
well as to its DT binding documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest Armada XP datasheet documents several new DRAM related
functions on various MPPs. This commit adds the description of these
new functions in the Armada XP pinctrl driver and its DT binding
documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada XP datasheet documents a new
NAND-related MPP function on MPP48, for which this commit adds
support.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest Armada XP datasheet documents that some of the MPP pins can
be used to access the second SPI bus, labelled 'spi1'. This commit
adds the corresponding pins in the pinctrl driver and its DT binding
documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit normalizes the subnames of the reference clock MPP pins in
the Armada 39x pinctrl driver to match with the name used on other
SoCs.
Since only the subnames are changed, DT backward compatibility is not
affected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
After updating to the latest Armada XP datasheet, we discovered that
there is a second SPI bus accessible from the MPP pins, called 'spi1'.
In order to be consistent with other SoCs having two SPI busses, this
commit renames the functions of the first SPI bus to 'spi0' instead of
just 'spi'.
This commit obviously breaks the DT backward compatibility for the
people using the "spi" function name in their Device Tree.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Across all SoCs, even on Armada 370 for SPI0, the clock pin uses the
'sck' subname and not 'clk', so this commit adjusts the code and
documentation accordingly.
Since this commit only changes the subname, DT backward compatibility
is not affected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
For consistency with the datasheet, this commit renames the VDD
function of the MPP4 pin.
While this changes the DT compatibility, it is not considered to be a
problem since this pin is unlikely to be used for anything but
debugging purposes.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit normalizes the naming of the Ethernet txclkout pin to be
the same accross Marvell SoCs. It is worth mentioning that the DT
binding documentation of the Armada XP was wrong for MPP12: it said
the function was ge1(txd0), while it is in fact ge1(txclkout). It is
however not really a fix worth sending to stable since it does not
change the behavior, and the driver itself was correct.
Since only the subnames are changed, DT backward compatibility is not
affected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit aligns the naming of the audio 'lrclk' pin accross Marvell
SoCs.
Since only the subname is changed, the DT backward compatibility is
not affected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit normalizes the naming of PCIe pins to use 'rstout' instead
of 'rstoutn' or 'rst-out'.
Since only the subnames are changed, DT compatibility is not affected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit normalizes the naming of the TDM pins accross the
different Marvell SoCs. Mainly it consists in:
* Removing the 'n' from signal names: 'intn' becomes 'int' and 'rstn'
becomes 'rst'
* Renaming the main name 'tdm2c' to 'tdm' on Armada 38x.
* Change the main name 'tdm-1' to 'tdm' for one of the pins of the
Armada XP
The last two changes affect DT compatibility, but since the TDM
interface is nowhere near being supported in mainline, it should not
be considered to be a serious problem at this point.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
All SoCs use "nand" to designate NAND pins, only Armada 39x is using
"nd", which is not consistent. This commit fixes that by renaming the
corresponding functions.
It also changes the subnames from rbn0/rbn1 to rb0/rb1, to respect the
convention used everywhere that we don't encode the 'n' part of signal
names.
While this commit changes the main name of function, therefore
potentially breaking the DT compatibility, this is not a problem since
Armada 39x is a brand new SoC which isn't used in production yet.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit modifies the definition of the Device Bus interface pins
to be consistent accross SoCs. Especially, it removes the 'n'
indicators that we don't encode in the subnames of pins:
'dev(wen0)' becomes 'dev(we0)'
'dev(wen1)' becomes 'dev(we1)'
'dev(oen)' becomes 'dev(oe)'
etc.
In addition, it fixes the Armada 375 DT binding documentation, which
forgot to document the 'dev' function for MPP46, MPP57 and MPP63.
Since only the subnames are changed, this commit does not affect DT
compatibility.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In order to be consistent with the datasheet and some other SoCs, this
commit renames the SDIO pins of the Armada 39x from "sd" to "sd0".
While this changes the DT binding, this is not a problem since Armada
39x is a brand new SoC which isn't used in production yet (so now is
the right time to fix such things).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit makes the naming of SATA related MPP functions consistent
accross SoCs by adjusting the Armada 39x definition to use "prsnt"
instead of "present".
Since only the subnames are changed, the DT binding is not modified at
all.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit makes the dram functions naming (both the name and
subname) consistent accross SoC, by using:
dram(vttctrl)
dram(deccerr)
in all Marvell SoCs.
Due to the change to the name, it changes the DT binding, but these
functions are not used by any in-tree Device Tree file, and are very
unlikely to be used by anyone.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The subnames are purely informative, but it's nicer when they match
accross SoCs. This commit adjusts the Armada 375, Armada 38x and
Armada 39x MPP definitions so that the subnames of the PTP pins match
the ones used on Armada XP and Kirkwood.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pinctrl_gpio_range[] array described a first bank of 32 GPIOs and
a second one of 27 GPIOs. However, since there is a total of 60 MPP
pins that can be muxed as GPIOs, the second bank really has 28 GPIOs.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v4.1+
Fixes: ee086577ab ("pinctrl: mvebu: add pinctrl driver for Marvell Armada 39x")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pinctrl_gpio_range[] array described a first bank of 32 GPIOs and
a second one of 27 GPIOs. However, since there is a total of 60 MPP
pins that can be muxed as GPIOs, the second bank really has 28 GPIOs.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.15+
Fixes: ca6d9a084b ("pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 380/385")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There was an incorrect space in the definition of the function of one
pin in the Armada 375 pinctrl driver, which this commit fixes.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.15+
Fixes: ce3ed59dcd ("pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 375")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There was a mistake in the definition of the functions for MPP48 on
Marvell Armada XP. The second function is dev(clkout), and not tclk.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.7+
Fixes: 463e270f76 ("pinctrl: mvebu: add pinctrl driver for Armada XP")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The latest version of the Armada XP datasheet no longer documents the
VDD cpu_pd functions, which might indicate they are not working and/or
not supported. This commit ensures the pinctrl driver matches the
datasheet.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.7+
Fixes: 463e270f76 ("pinctrl: mvebu: add pinctrl driver for Armada XP")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
After updating to a more recent version of the Armada XP datasheet, we
realized that some of the pins documented as having a NAND-related
functionality in fact did not have such functionality. This commit
updates the pinctrl driver accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.7+
Fixes: 463e270f76 ("pinctrl: mvebu: add pinctrl driver for Armada XP")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
After updating to a more recent version of the Armada 375, we realized
that some of the pins documented as having a NAND-related
functionality in fact did not have such functionality. This commit
updates the pinctrl driver accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.15+
Fixes: ce3ed59dcd ("pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 375")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Due to a mistake, the CS0 and CS1 SPI0 functions were incorrectly
named "spi0-1" instead of just "spi0". This commit fixes that.
This DT binding change does not affect any of the in-tree users.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.7+
Fixes: 5f597bb2be ("pinctrl: mvebu: add pinctrl driver for Armada 370")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
A new revision of the Marvell Armada 38x hardware datasheet unveiled
that the definition of some of the PCIe functions were not
correct. This commit fixes the pinctrl driver accordingly.
Some PCIe functions simply do not exist, some of the PCIe functions in
fact were corresponding to other functions, and some PCIe functions
have been added.
Note: the seemingly unrelated removal of spi(cs2) on MPP47 is related:
this function is in fact implemented on MPP43, instead of a PCIe
function.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.15+
Fixes: ca6d9a084b ("pinctrl: mvebu: add pin-muxing driver for the Marvell Armada 380/385")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There is no reason to try to print groups associated to a function if
get_function_groups returns an error. Moreover, it can lead to a NULL
pointer dereference error.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add comments for the SPI functions, to distinguish CLK, SDI, SDO and
C{0,1,2,3}n.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Rename function ss0 to spi1 to be consistent with the other Berlin
function names.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
A33 PIO has 7 ports which starts from PB and has two interrupt ports.
Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
PTR_ERR should access the value just tested by IS_ERR
The semantic patch that makes this change is available
in scripts/coccinelle/tests/odd_ptr_err.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
platform_driver does not need to set the owner field, as it will be
populated by the driver core, so just remove it.
The semantic patch that makes this change is available
in scripts/coccinelle/api/platform_no_drv_owner.cocci.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There are two types for pinctrl maps: pinmux and pinconfig
This debug message shows the number of maps of both types.
The string "pinmux map" is not precise. Let's say "pinctrl map"
instead.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[also fixed %d -> %u]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This array is only referenced in this file and never updated.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This array is only referenced in this file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since mt6397 is no need to support interrupt controller,
I judged "interrupt-controller" property to skip it last patch.
But the if judgement should on the contrary, this is a bug.
And find of_property_read_bool is better for this case.
So using of_property_read_bool instead of of_find_property.
Also fix bug of misuse pointer.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add ies/smt support for MSDC3.
Also fix ies bug for pin 106 and 107.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The address for SD0_WP_CD_SEL, SD1_WP_CD_SEL is 0xf8000830,
0xf8000834, respectively.
Each offset address must be prefixed with 0x.
Fixes: add958cee9 "pinctrl: Add driver for Zynq"
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit e5b3b2d9ed ("pinctrl: allows not to define the get_group_pins
operation") allows pin controllers not to register the get_group_pins()
function. However, a side-effect of not registering this function is
that pins are not allocated and potentially multiple devices could
attempt to configure the same pins [1]. Although this problem exists in
the pinctrl core, because only a few devices are impacted by this, fix
this for tegra-xusb by adding the get_group_pins() function.
Please note that in addition to adding the get_group_pins() functions
the pins/lanes for the tegra-xusb also need to be registered when
calling pinctrl_register(). This also allows the current pinmux state
to be viewed by the debugfs node "pinmux-pins" for the tegra-xusb pad
controller.
[1] http://www.spinics.net/lists/linux-gpio/msg05810.html
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The structure tegra_xusb_padctl_group is defined but never used and so
remove this.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If we know we are using a strict pin controller (one that cannot
mix device functions+group use and GPIO) we can be a bit more
specific in debugfs, just print either device-function-group
or GPIO consumer for the pin. Let's do that to be helpful.
Cc: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
X86_64 allmodconfig screams like so:
warning: (PINCTRL_MT6397) selects PINCTRL_MTK_COMMON
which has unmet direct dependencies
(PINCTRL && (ARCH_MEDIATEK || COMPILE_TEST) && OF)
So add OF to dependencies to shut up this warning.
Cc: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Pinctrl module (ioc) controls the Pad's function select
(each pad can have 8 functions), Pad's Drive Strength, Pad's
Pull Select and Pad's Input Disable status.
The ioc has two modules, ioc_top & ioc_rtc. Both of these two
modules have function select/clear, Pull select and Drive
Strength registers. But only ioc_rtc has input-disable
registers. The Pads on ioc_top have to access ioc_rtc to set
their input-disable status and intpu-disable-value.
So have to use one ioc driver instance to drive these two
ioc modules at the same time, and each ioc module will be
treat as one bank on the "IOC Device".
The GPIO Controller controls the GPIO status if the Pad has
been config as GPIO by Pinctrl already. Includes the GPIO
Input/output, Interrupt type, Interrupt Status, and Set/Get
Values.
The GPIO pull up/down are controlled by Pinctrl.
There are 7 GPIO Groups and splited into 3 MACROs in atlas7.
The GPIO Groups in one MACRO share one GPIO controllers, each
GPIO Group are treated as one GPIO bank.
For example:
In VDIFM macro, there is one GPIO Controller, it has 3 banks
to control 3 gpio groups. Its gpio name space is from 0 to 95.
The Device Tree can be written as following:
gpio-ranges = <&pinctrl 0 0 0>,
<&pinctrl 32 0 0>,
<&pinctrl 64 0 0>;
gpio-ranges-group-names = "gnss_gpio_grp",
"lcd_vip_gpio_grp",
"sdio_i2s_gpio_grp";
bank#0 is from 0~31, the pins are from pinctrl's "gnss_gpio_grp".
bank#2 is from 32~63, the pins are from pinctrl's "lcd_vip_gpio_grp".
bank#3 is from 64~95, the pins are from pinctrl's "sdio_i2s_gpio_grp".
Signed-off-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This function is only referenced in this file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The num_pins field in the struct meson_domain_data must include also the
missing pins in the Meson8b SoC, otherwise the GPIO <-> pin mapping is
broken on this platform. Avoid also the dinamic allocation for GPIOs.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
MT8127 pinctrl/eint are similar to mt8135 and mt8173, add
support for mt8127 using mediatek common pinctrl driver.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add mt6397 support using mediatek common pinctrl driver.
mt6397 is a PMIC, and pinctrl/GPIO is part of 6397 chip.
Pinctrl/GPIO driver should obtain regmap from PMIC,
so adding this support to common code.
Also, mt6397 is no need to support interrupt controller,
so changing common code to skip it.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Input enable and smt setting have different register,
modify code to fix it.
Several mediatek soc use similar input enable/smt setting
procedure as mt8173, some soc use generic input enable/smt
setting, some soc has no input enable/smt setting. Adding
common code to handle all those cases, so future soc driver
can use it.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Several mediatek soc use similar pull setting procedure as mt8173,
the pupd enable and resistance setting are in the same register.
Add common code mtk_pctrl_spec_pull_set_samereg out of spec_pull_set
in mt8173 to handle this case, so future soc driver can use it.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
struct mtk_desc_pin.chip, mtk_pinctrl_devdata.invser_offset
and mtk_pinctrl_devdata.chip_type are never used in code.
Remove them.
Some per-pin data are using int for pin number and offsets.
Change to short and rearrange to reduce const data size.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add the required group function map and fill it at probe using
the pin capabilities information already present in the driver.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch fixes an incorrect GPIO-to-pin mapping in the Cygnus GPIO
driver
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fixed a small typo in the Cygnus GPIO driver
Signed-off-by: Jason Uy <jasonuy@broadcom.com>
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
With convertsion to simple-mfd sub-nodes, drop the regmap registration
by SoC stubs.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
The Berlin pin controller nodes will be simple-mfd probed sub-nodes of
soc-controller and system-controller nodes. The register bank is managed
by syscon, which provides a regmap.
Prepare to get the regmap from syscon parent node instead of SoC stub
provided regmap.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
If a driver does not set interrupt triggering type when it calls
request_irq(), it means use the pin as the hardware/firmware has
configured it. There are some drivers doing this. One example is
drivers/input/serio/i8042.c that requests the interrupt like:
error = request_irq(I8042_KBD_IRQ, i8042_interrupt, IRQF_SHARED,
"i8042", i8042_platform_device);
It assumes the interrupt is already properly configured. This is true in
case of interrupts connected to the IO-APIC. However, some Intel
Braswell/Cherryview based machines use a GPIO here instead for the internal
keyboard controller.
This is a problem because even if the pin/interrupt is properly configured,
the irqchip ->irq_set_type() will never be called as the triggering flags
are 0. Because of that we do not have correct interrupt flow handler set
for the interrupt.
Fix this by adding a custom ->irq_startup() that checks if the interrupt
has no triggering type set and in that case read the type directly from the
hardware and install correct flow handler along with the mapping.
Reported-by: Jagadish Krishnamoorthy <jagadish.krishnamoorthy@intel.com>
Reported-by: Freddy Paul <freddy.paul@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add a driver for the pin controller present on the IMG Pistachio SoC.
This driver provides pinmux and pinconfig operations as well as GPIO
and IRQ chips for the GPIO banks.
Changes from v4:
- Switched to using gpiochip_add_pin_range().
- Fixed up Kconfig entry.
Changes from v3:
- Addressed review comments from Ezequiel.
Changes from v2:
- Removed module stuff which would be compiled out.
Changes from v1:
- Addressed review comments from Linus.
- Changed compatible string to "img,pistachio-system-pinctrl".
- Look for GPIO sub-nodes by name.
- A couple of bug fixes.
Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Both pconf_get_pin and pconf_set_pin needs to lookup pin cap based
on the pin number. Create a common helper function that both
functions can use that also handles the case where no pin number is
found in the pins array.
This also fixes a small bug in pconf_get_pin where pconf_get_i2c0
would use the pins array index rather than the pin number.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As of commit 9d07d414d4 ("ARM: shmobile: r8a73a4: ape6evm: Remove
legacy platform"), r8a73a4 is only supported in generic ARM
multi-platform builds. Hence CONFIG_ARCH_MULTIPLATFORM is always set,
and the check can be removed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Regarding pin control, r8a7791 and r8a7793 are identical, so it is
sufficient to add an sh_pfc_soc_info structure to enable r8a7793 support.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The last serial port is called "SCIFB", not "SCIFAB".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Intel Sunrisepoint-H is a desktop version of the PCH (Platform Controller
Hub). It has slightly different pin configuration compared to the LP
version. This patch adds support for Sunrisepoint-H to the existing
pinctrl-sunrisepoint.c driver.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As of commit 9d07d414d4 ("ARM: shmobile: r8a73a4: ape6evm: Remove
legacy platform"), r8a73a4 is only supported in generic DT-only ARM
multi-platform builds. The driver doesn't need to match platform
devices by name anymore, hence remove the corresponding
platform_device_id entry.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Fix a memory leak for GPIO hotplug.
- Fix a signedness bug in the ACPI GPIO pin validation.
- Driver fixes: Qualcomm SPMI and OMAP MPUIO IRQ issues.
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Merge tag 'gpio-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here is a bunch of GPIO fixes that I collected since -rc1, nothing
controversial, nothing special:
- fix a memory leak for GPIO hotplug.
- fix a signedness bug in the ACPI GPIO pin validation.
- driver fixes: Qualcomm SPMI and OMAP MPUIO IRQ issues"
* tag 'gpio-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: omap: Fix regression for MPUIO interrupts
gpio: sysfs: fix memory leaks and device hotplug
pinctrl: qcom-spmi-gpio: Fix input value report
pinctrl: qcom-spmi-gpio: Fix output type configuration
gpiolib: change gpio pin from unsigned to signed in acpi callback
Way back, when the world was a simpler place and there was no war, no
evil, and no kernel bugs, there was just a single pinctrl lock. That
was how the world was when (57291ce pinctrl: core device tree mapping
table parsing support) was written. In that case, there were
instances where the pinctrl mutex was already held when
pinctrl_register_map() was called, hence a "locked" parameter was
passed to the function to indicate that the mutex was already locked
(so we shouldn't lock it again).
A few years ago in (42fed7b pinctrl: move subsystem mutex to
pinctrl_dev struct), we switched to a separate pinctrl_maps_mutex.
...but (oops) we forgot to re-think about the whole "locked" parameter
for pinctrl_register_map(). Basically the "locked" parameter appears
to still refer to whether the bigger pinctrl_dev mutex is locked, but
we're using it to skip locks of our (now separate) pinctrl_maps_mutex.
That's kind of a bad thing(TM). Probably nobody noticed because most
of the calls to pinctrl_register_map happen at boot time and we've got
synchronous device probing. ...and even cases where we're
asynchronous don't end up actually hitting the race too often. ...but
after banging my head against the wall for a bug that reproduced 1 out
of 1000 reboots and lots of looking through kgdb, I finally noticed
this.
Anyway, we can now safely remove the "locked" parameter and go back to
a war-free, evil-free, and kernel-bug-free world.
Fixes: 42fed7ba44 ("pinctrl: move subsystem mutex to pinctrl_dev struct")
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The irq_domain_ops are not modified by the driver and the irqdomain core
code accepts pointer to a const data.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The old format to define pinctrl settings for imx in DT has two
hierarchy levels. The first level are function device nodes. The second
level are pingroups which contain a property fsl,pins. The original
intention was to define all pin functions in a single dtsi file and just
reference the correct ones in the board files.
This idea was rejected some time ago leading to the current design to
have all the pinfunctions defined in the board files. So we don't need
the function device nodes anymore.
This patch changes the pinctrl driver to accept devicetrees which do not
have the first hierarchy level, function device nodes. For example
karo-tx25 already has such a devicetree. Old devicetrees are still
parsed and supported.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since SCLK, MISO and MOSI are the only mandatory signals at Zynq's SPI
interfaces, SS0, SS1 and SS2 have to be configured separately as they may
be used as simple GPIO lines.
This, of course, has to be considered in the devicetree, so pin controller
configuration for e.g. an SPI0 using SS0 and SS1 only might look like the
following snippet (derived from the example of chapter "17.5.3
MIO/EMIO" Routing of Zynq-7000 TRM UG585). So MIO20 can now be used
as GPIO instead of being occupied by SPI0 SS2 function. Note the separate
pinmux function for the slave select signals:
pinctrl_spi0_default: spi0-default {
mux_spi {
function = "spi0";
groups = "spi0_0_grp";
};
mux_ss {
function = "spi0_ss";
groups = "spi0_0_ss0_grp", "spi0_0_ss1_grp";
}
conf-output {
pins = "MIO16", "MIO21";
slew-rate = <0>;
bias-disable;
low-power-disable;
io-standard = <1>;
};
conf-input {
pins = "MIO17";
slew-rate = <0>;
bias-high-impedance;
low-power-disable;
io-standard = <1>;
};
conf-select {
pins = "MIO18", "MIO19";
slew-rate = <0>;
bias-pull-up;
low-power-disable;
io-standard = <1>;
};
};
pinctrl_gpio0_default {
mux {
function = "gpio0";
groups = "gpio0_20_grp"
};
conf {
pins = "MIO20";
slew-rate = <0>;
bias-pull-up;
low-power-disable;
io-standard = <1>;
};
};
Signed-off-by: Helmut Buchsbaum <helmut.buchsbaum@gmail.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Assign GPIO chip and irqchip to the GPIO container dynamically,
so we can set a unique name for each GPIO irqchip and see what
chip the hwirq offset actually relates to.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This activates strict mode muxing for the Nomadik pin controllers,
as these do not allow GPIO and functions to use the same pin
simultaneously.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
While the pinmux_ops are ideally just a vtable for pin mux
calls, the "strict" setting belongs so intuitively with the
pin multiplexing that we should move it here anyway. Putting
it in the top pinctrl_desc makes no sense.
Cc: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Disallow simultaneous use of the the GPIO and peripheral mux
functions by setting a flag "strict" in struct pinctrl_desc.
The blackfin pinmux and gpio controller doesn't allow user to
set up a pin for both GPIO and peripheral function. So, add flag
strict in struct pinctrl_desc to check both gpio_owner and
mux_owner before approving the pin request.
v2-changes:
- if strict flag is set, check gpio_owner and mux_onwer in if and
else clause
v3-changes:
- add kerneldoc for this struct
- augment Documentation/pinctrl.txt
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pinctrl driver for the System Control Unit (SCU) found on NXP
LPC18xx/43xx devices.
Driver uses the generic pinctrl DT bindings for multiplexing
and property settings.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds the callback for set_multiple.
As this controller has a separate set and clear register, we
can't write directly to PIO_ODSR as this would required a cached
variable and would race with at91_gpio_set.
So build masks for the PIO_SODR and PIO_CODR registers and
write them together.
Signed-off-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
cppcheck detected an uninitialized variable:
[drivers/pinctrl/mediatek/pinctrl-mtk-common.c:897]:
(error) Uninitialized variable: unmask
unmask should be initialized to zero to ensure unmasking
only occurs if a previous mask occurred. The current situation
is that the unmask variable could contain any random garbage
causing random unexpected unmasking.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix interpretation of the pmic_mpp_read() return code,
negative value means an error.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Read input buffer when input is enabled, not when it is
disabled. Also fix interpretation of the pmic_gpio_read()
return code, negative value means an error.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
GPIO output type configuration was incorrectly overwritten
by strength value. Fix this.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pin direction configuration was incorrectly overwritten
by output and function values in set_mux(). Fix this.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There was some mess in the dependencies in the pinctrl
Kconfig for compile tests under allmodconfig. Mea Culpa.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
cycle:
New drivers:
- Intel Sunrisepoint
- AMD KERNCZ GPIO
- Broadcom Cygnus IOMUX
New subdrivers:
- Marvell MVEBU Armada 39x SoCs
- Samsung Exynos 5433
- nVidia Tegra 210
- Mediatek MT8135
- Mediatek MT8173
- AMLogic Meson8b
- Qualcomm PM8916
On top of this cleanups and development history for the above
drivers as issues were fixed after merging.
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Merge tag 'pinctrl-v4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pincontrol updates from Linus Walleij:
"This is the bulk of pin control changes for the v4.1 development
cycle. Nothing really exciting this time: we basically added a few
new drivers and subdrivers and stabilized them in linux-next. Some
cleanups too. With sunrisepoint Intel has a real fine fully featured
pin control driver for contemporary hardware, and the AMD driver is
also for large deployments. Most of the others are ARM devices.
New drivers:
- Intel Sunrisepoint
- AMD KERNCZ GPIO
- Broadcom Cygnus IOMUX
New subdrivers:
- Marvell MVEBU Armada 39x SoCs
- Samsung Exynos 5433
- nVidia Tegra 210
- Mediatek MT8135
- Mediatek MT8173
- AMLogic Meson8b
- Qualcomm PM8916
On top of this cleanups and development history for the above drivers
as issues were fixed after merging"
* tag 'pinctrl-v4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (71 commits)
pinctrl: sirf: move sgpio lock into state container
pinctrl: Add support for PM8916 GPIO's and MPP's
pinctrl: bcm2835: Fix support for threaded level triggered IRQs
sh-pfc: r8a7790: add EtherAVB pin groups
pinctrl: Document "function" + "pins" pinmux binding
pinctrl: intel: Add Intel Sunrisepoint pin controller and GPIO support
pinctrl: fsl: imx: Check for 0 config register
pinctrl: Add support for Meson8b
documentation: Extend pinctrl docs for Meson8b
pinctrl: Cleanup Meson8 driver
Fix inconsistent spinlock of AMD GPIO driver which can be recognized by static analysis tool smatch. Declare constant Variables with Sparse's suggestion.
pinctrl: at91: convert __raw to endian agnostic IO
pinctrl: constify of_device_id array
pinctrl: pinconf-generic: add dt node names to error messages
pinctrl: pinconf-generic: scan also referenced phandle node
pinctrl: mvebu: add suspend/resume support to Armada XP pinctrl driver
pinctrl: st: Display pin's function when printing pinctrl debug information
pinctrl: st: Show correct pin direction also in GPIO mode
pinctrl: st: Supply a GPIO get_direction() call-back
pinctrl: st: Move st_get_pio_control() further up the source file
...
Pull trivial tree from Jiri Kosina:
"Usual trivial tree updates. Nothing outstanding -- mostly printk()
and comment fixes and unused identifier removals"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
goldfish: goldfish_tty_probe() is not using 'i' any more
powerpc: Fix comment in smu.h
qla2xxx: Fix printks in ql_log message
lib: correct link to the original source for div64_u64
si2168, tda10071, m88ds3103: Fix firmware wording
usb: storage: Fix printk in isd200_log_config()
qla2xxx: Fix printk in qla25xx_setup_mode
init/main: fix reset_device comment
ipwireless: missing assignment
goldfish: remove unreachable line of code
coredump: Fix do_coredump() comment
stacktrace.h: remove duplicate declaration task_struct
smpboot.h: Remove unused function prototype
treewide: Fix typo in printk messages
treewide: Fix typo in printk messages
mod_devicetable: fix comment for match_flags
Instead of referring to a global static variable for the sgpio
locking, use the state container to contain the lock.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently, the driver uses handle_simple_irq for all IRQ types and hard
codes the acknowledge for different IRQ types into the handler. It is
better to use the IRQ core as intended and let it handle the differences
between the various types of IRQ. For example the current system does
not work for threaded level triggered IRQs as these need to be masked
until the threaded handler has run.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add EtherAVB pin groups to R8A7790 PFC driver.
Based on original patch by Mitsuhiro Kimura <mitsuhiro.kimura.kc@renesas.com>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This driver supports pinctrl/GPIO hardware found on Intel Sunrisepoint (a
Skylake PCH) providing users a pinctrl and GPIO interfaces (including GPIO
interrupts).
The driver is split into core and platform parts so that the same core
driver can be reused in other drivers for other Intel GPIO hardware that is
based on the same host controller design.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
0 is used in all pinfunction definitions when a config register is not
available, for example imx25-pinfunc.h. If a configuration value is used
for such a pinfunction the driver will always write it to the
configuration register if it is not -1. For a 0 configuration register
the configuration value is written to offset 0x0. This can lead to a
crashing/hanging system without any warning message.
This patch checks for 0 config register and sets the internal value to
-1. If the configuration value is not NO_PADCTL this leads to an error
message that applying the configuration failed.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Stefan Agner <stefan@agner.ch>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds support for the AmLogic Meson8b SoC.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add the compatible string for Meson8b in Meson pinctrl documentation
and add new information for Meson8b in source code comments.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch introduces a new PIN macro and few small modifications to
simplify and shorten the Meson pinctrl drivers and cleanup the support
file for the AmLogic Meson8 SoC.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use endian agnostic _relaxed IO accessors instead of the __raw ones.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Make pinconf_generic_dt_node_to_map() also scan the dt pin configuration node
directly referenced by phandle, not only its child nodes.
The "parent scan" feature needs a few other changes:
* Move the pinconf_generic_dt_node_to_map() error handling code to a common
place, under the 'exit' label.
* Move the pins/groups strings count earlier in
pinconf_generic_dt_subnode_to_map(), to allow us to bail out early when
these properties are missing or wrong
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit adds suspend/resume support to the Armada XP pinctrl
driver, by simply saving and restoring the MPP registers.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Great for easily determining which mode a pin is operating in.
This patch was particularly helpful when debugging a recent GPIO/
Pinctrl disparity issue.
Before:
$ cat /sys/kernel/debug/pinctrl/<pin-controller>/pinconf-pins
pin 33 (PIO4[1]):[OE:0,PU:0,OD:0]
[retime:0,invclk:0,clknotdat:0,de:0,rt-clk:0,rt-delay:0]
After [GPIO]:
$ cat /sys/kernel/debug/pinctrl/<pin-controller>/pinconf-pins
pin 33 (PIO4[1]):[OE:0,PU:0,OD:0] GPIO
[retime:0,invclk:0,clknotdat:0,de:0,rt-clk:0,rt-delay:0]
After [Alt]:
$ cat /sys/kernel/debug/pinctrl/<pin-controller>/pinconf-pins
pin 33 (PIO4[1]):[OE:0,PU:0,OD:0] Alt Fn 2
[retime:0,invclk:0,clknotdat:0,de:0,rt-clk:0,rt-delay:0]
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Until now ST's pinconf_dbg_show() call-back has displayed the PIO
alternate function direction, which is only relevant if a pin is
operating in an alternate function mode i.e not GPIO mode. If a
pin is in GPIO mode its direction is both set and status is
obtained by a completely different/unrelated bunch of registers.
This change ensures that the correct pin direction is shown, even
if a pin is operating in GPIO mode.
Reported-by: Olivier Clergeaud <olivier.clergeaud@st.com>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
ST's hardware differentiates between GPIO mode and Pinctrl alternate
functions. When a pin is in GPIO mode, there are dedicated registers
to set and obtain direction status. However, If a pin's alternate
function is in use then the direction is set and status is derived
from a bunch of syscon registers. The issue is; until now there was
a lack of parity between the two.
For example:
Catting the two following information sources could result in
conflicting information (output has been snipped for simplicity):
$ cat /sys/kernel/debug/gpio
GPIOs 32-39, platform/961f080.pin-controller-sbc, PIO4:
gpio-33 (? ) out hi
$ cat /sys/kernel/debug/pinctrl/<pin-controller>/pinconf-pins
pin 33 (PIO4[1]):[OE:0,PU:0,OD:0]
[retime:0,invclk:0,clknotdat:0,de:0,rt-clk:0,rt-delay:0]
In this example GPIO-33 is a GPIO controlled LED, which is set for
output, as you'd expect. However, when the same information is
drafted from Pinctrl, it clearly states that OE (Output Enable) is
not set i.e. the pin is set for input. This is because OE normally
only represents alternate functions and has no bearing on how the
pin operates when in Alt-0 (GPIO mode).
This patch changes the current semantics and provides a parity link
between the two subsystems. The get_direction() call-back firstly
determines which function a pin is operating in, then uses the
appropriate helpers for that mode.
Reported-by: Olivier Clergeaud <olivier.clergeaud@st.com>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
st_get_pio_control() will be used by subsequent calls which are
to be located above its original position. This is required to
prevent the need for an unnecessary forward-declaration/prototype.
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This call fetches the numerical function value a specified pin is
currently operating in. Function zero is more often than not the
GPIO function. Greater than zero values represent an alternative
function. You'd need to either look those up in the Device Tree
sources or the Programmer's Manual.
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Optional fields are set to -1 by various preprocessor macros. Make
sure the fields can actually store them.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Also make the table a bit compact.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Prefer devm_kcalloc over devm_kzalloc with multiply.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
ARM64 maintainer doesn't want to add MACH_* for each SoC.
Adjust mt8173 pinctrl kconfig entry so user can manually select it.
Also make PINCTRL_MT8135 selectable when COMPILE_TEST is enabled.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Remove erroneous kfree for memory allocated by devm_kzalloc
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix the following build failure:
In file included from drivers/pinctrl/mediatek/pinctrl-mt8135.c:24:0:
drivers/pinctrl/mediatek/pinctrl-mtk-mt8135.h:19:32: fatal error:
pinctrl-mtk-common.h: No such file or directory
seen when building arm:multi_v7_defconfig.
Fixes: 94097d89c145 ("pinctrl: mediatek: Add Pinctrl/GPIO driver for mt8135.")
Cc: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On sun4i-a10, when GPIOs are configured as external interrupt the value for
them in the data register does not seem to get updated, so set their mux to
input (and restore afterwards) when reading the pin.
Missed edges seem to be buffered, so this does not introduce a race
condition.
I've also tested this on sun5i-a13 and sun7i-a20 and those do not seem to
be affected, the input value representation in the data register does seem
to correctly get updated to the actual pin value while in irq mode there.
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>
The r8a7790 platform is now DT-only, the driver doesn't need to match
platform devices by name anymore. Remove the corresponding
platform_device_id entry.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The emev2 platform is now DT-only, the driver doesn't need to match
platform devices by name anymore. Remove the corresponding
platform_device_id entry.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently all PFC registers lie in low 32-bit address space. Hence use
u32 instead of unsigned long to store PFC register addresses in pinctrl
tables. All calculations of virtual addresses use a phys_addr_t
intermediate, so we know where to add an offset if the 32-bit assumption
ever becomes false.
While this doesn't impact 32-bit builds, it would save ca. 7 KiB on a
64-bit shmobile_defconfig kernel.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
All other loops over sh_pfc_soc_info.data_regs[] use
pinmux_data_reg.regwidth as the sentinel, which is safer as zero is
never a valid regwidth value (reg could be zero if we start using it to
store an offset).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As register and field widths and offsets are in the range 1..32, use
unsigned int (mostly replacing unsigned long) to store them in local
variables and for passing them around.
Move to one variable per line, move variables to the beginning of the
block where they are used, and drop superfluous initializations while we
are at it.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Register and field widths are in the range 1..32. Storing them in the
pinctrl data in (arrays of) unsigned long wastes space.
This decreases the size of a (32-bit) shmobile_defconfig kernel
supporting 7 SoCs by 26460 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
KERNCZ GPIO is a new IP from AMD. it can be implemented in both x86 and ARM.
Current driver patch only support GPIO in x86.
Signed-off-by: Ken Xue <Ken.Xue@amd.com>
[Moved back to <linux/gpio.h> header]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The alive pin controller on exynos7 does not support external gpio
interrupts. Hence, remove the eint_gpio_init call-back for it. This
fixes the following error message seen during exynos7 boot-up:
"samsung-pinctrl 10580000.pinctrl: irq number not available"
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds the initial support of the Broadcom Cygnus GPIO/PINCONF driver
that supports all 3 GPIO controllers on Cygnus including the ASIU GPIO
controller, the chipCommonG GPIO controller, and the always-on GPIO
controller. Basic PINCONF configurations such as bias pull up/down, and
drive strength are also supported in this driver.
Pins from the ASIU GPIO controller can be individually muxed to GPIO
function, through interaction with the Cygnus IOMUX controller
Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Due to pinconf_generic_parse_dt_config() API changes in pinctrl
devel branch, add one parameter to fix build error.
Also fix warning:
drivers/pinctrl/mediatek/pinctrl-mtk-common.c:718:3: warning:
too many arguments for format [-Wformat-extra-args]
dev_err(&pdev->dev, "only support pins-are-numbered format\n", ret);
^
by removing extra parameter when calling dev_err in mtk_pctrl_init.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
MTK EINT does not support generating interrupt on both edges.
Emulate this by changing edge polarity while enable irq,
set types and interrupt handling. This follows an example of
drivers/gpio/gpio-mxc.c.
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add mt8173 support using mediatek common pinctrl driver.
MT8173 have a different ies_smt setting register than mt8135,
so adding this support to common code.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
MTK SoC support external interrupt(EINT) from most SoC pins.
Add EINT support to pinctrl driver.
Signed-off-by: Maoguang Meng <maoguang.meng@mediatek.com>
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The mediatek SoCs have GPIO controller that handle both the muxing and GPIOs.
The GPIO controller have pinmux, pull enable, pull select, direction and output high/low control.
This driver include common driver and mt8135 part.
The common driver include the pinctrl driver and GPIO driver.
The mt8135 part contain its special device data.
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As PFC registers are either 8, 16, or 32 bits wide, use u32 (mostly
replacing unsigned long) to store (parts of) register values and masks.
Switch the shadow register operations from {set,clear}_bit() to plain C
bit operations, as the former can operate on long data only.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds the initial driver support for the Broadcom Cygnus IOMUX
controller. The Cygnus IOMUX controller supports group based mux
configuration but allows certain pins to be muxed to GPIO individually
Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit 3dac1918a4 ("pinctrl: imx: detect uninitialized pins") needs
the values in struct imx_pin_reg to be -1. This has been done in a
rather unorthodox way by setting the memory to 0xff using memset...
Use a proper for loop to initialize the whole array with -1.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The gpiochip_lock_as_irq call can fail and return an error,
while the irq_startup is not expected to fail (returns an
unsigned int which is not checked by irq core code).
irq_request/release_resources functions have been created
to address this problem.
Move gpiochip_lock/unlock_as_irq calls into
irq_request/release_resources functions to prevent using a
gpio as an irq if the gpiochip_lock_as_irq call failed.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
From the comments of gpiod_direction_output(), need to set @value
as initial output, so update the lowlevel routine to make it work.
Signed-off-by: jason.cj.chen<jason.cj.chen@intel.com>
Signed-off-by: qipeng.zha <qipeng.zha@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This enables support of 'input-enable' pinconf generic property in
the pinctrl driver.
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This makes the pinctrl driver to use the generic pinconf
interface. Mainly it gives us a way to use debugfs to dump
group configurations.
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There is no code ender the 'err' label. Just return the error code directly.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tegra210's pinmux supports a different set of pins/options than earlier
SoCs, so requires its own driver (well, table of pin-specific data).
Cc: devicetree@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Both nvidia,io-hv and nvidia,rcv-sel represent the fact that a particular
pin's IO buffers are configured to accept "high voltage" input signals.
The TRM for different chips names the register field rcv-sel on older
SoCs and io_hv on newer SoCs. Add the new naming option into the pinctrl
driver so that DT files can use naming consistent with the TRM.
This new property name will be documented in the patch that adds support
for the new SoC.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some of the pinmux configuration bits that exist in "drive group"
registers in Tegra30..Tegra124 move to the "pinmux" registers on future
chips. Add a flag to support this.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Various non-semantic tweaks and layout/consistency fixes for existing
Tegra pinctrl drivers.
Move the definition of DRV_PINGROUP_REG() before the definition of
PINGROUP() so that a future SoC driver can invoke the former from the
latter.
PINGROUP_BIT_Y(n) is just n, so replace it with n.
Re-wrap the parameters to *PINGROUP().
Keep various enums sorted in the Tegra124 driver.
Various white-space consistency fixes.
These changes aim to update existing drivers to be consistent with future
SoC drivers. While we could ignore these tweaks to the existing drivers,
I'd like to keep everything as consistent as possible for easy comparison.
Besides, I auto-generate the drivers, and maintaining special-cases to
keep the differences in place is annoying.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
After the last user of the in_pd/in_pu bias parameters of the _PCRH()
macro was removed in commit 80da8e02d2 ("sh-pfc: r8a7740: Add bias
(pull-up/down) pinconf support"), bias parameters are supposed to be
configured using the generic pinctl mechanism, which calls the
.set_bias() method.
However, the PORTCR() macro still represents the control register as
consisting of two 4-bit fields. Hence the bias configuration in the
uppermost 2 bits is always overwritten with zeroes when a pin is
configured for GPIO, disabling any previously configured bias.
Use the variable config register macro instead, to represent the
register as having 4 fields, and to make sure only the input/output
control and function fields are touched.
This affects R-Mobile APE6 (r8a73a4), R-Mobile A1 (r8a7740), SH-Mobile
AP4 (sh7372), and SH-Mobile AG5 (sh73a0).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The r8a7791 platform is now DT-only, the driver doesn't need to match
platform devices by name anymore. Remove the corresponding
platform_device_id entry.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The BIOS might reconfigure pins as it needs when S3 is entered. This might
cause drivers using the GPIOs to fail because the state was wrong or
interrupts stopped working.
Fix this by saving and restoring enough pin context over system sleep.
Reported-by: Hans Holmberg <hans.holmberg@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Instead of handling everything in the driver's first level interrupt
handler, we can take advantage of already existing flow handlers that are
provided by the IRQ core.
This changes the functionality a bit also. Previously the driver looped
over pending interrupts in a single loop, restarting the loop if some
interrupt changed state. This caused problem with Lenovo Thinkpad 10
digitizer that it was not able to deassert the interrupt before the driver
disabled the interrupt for good (looplimit was exhausted).
Rework the interrupt handling logic a bit so that we provide proper mask,
ack and unmask operations in terms of Baytrail GPIO hardware and loop over
pending interrupts only once. If the interrupt remains asserted the first
level handler will be re-triggered automatically.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If the pin is already configured as GPIO and it has any of the triggering
flags set, we may get spurious interrupts depending on the state of the
pin.
Prevent this by clearing the triggering flags on such pins. However, if the
pin is also configured as "direct IRQ" we leave the flags as is. Otherwise
it will prevent interrupts that are routed directly to IO-APIC.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Zotac ZBOX PI320, a Baytrail based mini-PC, has power button connected to a
GPIO pin and it is exposed to the operating system as Windows 8 button
array. This is implemented in Linux as a driver using gpio_keys.
However, BIOS on this particula machine forgot to mux the pin to be a GPIO
instead of native function, which results following message to be seen on
the console:
byt_gpio INT33FC:02: pin 16 cannot be used as GPIO.
This causes power button to not work as the driver was not able to request
the GPIO it needs.
So instead of completely preventing this we allow turning the pin as GPIO
but issue warning that something might be wrong.
Reported-by: Benjamin Adler <benadler@gmx.net>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds driver data for Exynos5433 SoC. Exynos5433 includes 228 multi-
functional input/output port pins and 135 memory port pins. There are 41 general
port groups and 2 memory port groups.
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit adds a new pinctrl driver for the Marvell Armada 39x
family of processors, which hooks into the existing infrastructure to
support pin-muxing on Marvell EBU processors. Two variants of the
Armada 39x are supported: 88F6920 (Armada 390) and 88F6928 (Armada
398), which have a few differences in the available functions for
certain pins.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Framework changes and enhancements:
- Passing -DDEBUG recursively to subdir drivers so we get
debug messages properly turned on.
- Infer map type from DT property in the groups parsing code
in the generic pinconfig code.
- Support for custom parameter passing in generic pin config.
This is used when you are using the generic pin config, but
want to add a few custom properties that no other driver
will use.
- New drivers:
- Driver for the Xilinx Zynq
- Driver for the AmLogic Meson SoCs
- New features in drivers:
- Sleep support (suspend/resume) for the Cherryview driver
- mvebeu a38x can now mux a UART on pins MPP19 and MPP20
- Migrated the qualcomm driver to generic pin config handling
of extended config options in the core code.
- Support BUS1 and AUDIO in the Exynos pin controller.
- Add some missing functions in the sun6i driver.
- Add support for the A31S variant in the sun6i driver.
- EMEv2 support in the Renesas PFC driver.
- Ass support for Qualcomm MSM8916 in the qcom driver.
- Deleted features
- Drop support for the SiRF Marco that was never released to
the market.
- Drop SH7372 support as the support for this platform is
removed from the kernel.
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Merge tag 'pinctrl-v3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pincontrol updates from Linus Walleij:
:This is the bulk of pin control changes for the v3.20 cycle:
Framework changes and enhancements:
- Passing -DDEBUG recursively to subdir drivers so we get debug
messages properly turned on.
- Infer map type from DT property in the groups parsing code in the
generic pinconfig code.
- Support for custom parameter passing in generic pin config. This
is used when you are using the generic pin config, but want to add
a few custom properties that no other driver will use.
New drivers:
- Driver for the Xilinx Zynq
- Driver for the AmLogic Meson SoCs
New features in drivers:
- Sleep support (suspend/resume) for the Cherryview driver
- mvebeu a38x can now mux a UART on pins MPP19 and MPP20
- Migrated the qualcomm driver to generic pin config handling of
extended config options in the core code.
- Support BUS1 and AUDIO in the Exynos pin controller.
- Add some missing functions in the sun6i driver.
- Add support for the A31S variant in the sun6i driver.
- EMEv2 support in the Renesas PFC driver.
- Add support for Qualcomm MSM8916 in the qcom driver.
Deleted features
- Drop support for the SiRF Marco that was never released to the
market.
- Drop SH7372 support as the support for this platform is removed
from the kernel"
* tag 'pinctrl-v3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (40 commits)
sh-pfc: emev2 - Fix mangled author name
pinctrl: cherryview: Configure HiZ pins to be input when requested as GPIOs
pinctrl: imx25: fix numbering for pins
pinctrl: pinctrl-imx: don't use invalid value of conf_reg
pinctrl: qcom: delete pin_config_get/set pinconf operations
pinctrl: qcom: Add msm8916 pinctrl driver
DT: pinctrl: Document Qualcomm MSM8916 pinctrl binding
pinctrl: qcom: increase variable size for register offsets
pinctrl: hide PCONFDUMP in #ifdef
pinctrl: rockchip: Only mask interrupts; never disable
pinctrl: zynq: Fix usb0 pins
pinctrl: sh-pfc: sh7372: Remove DT binding documentation
pinctrl: sh-pfc: sh7372: Remove PFC support
sh-pfc: Add emev2 pinmux support
sh-pfc: add macro to define pinmux without function
pinctrl: add driver for Amlogic Meson SoCs
staging: drivers: pinctrl: Fixed checkpatch.pl warnings
pinctrl: exynos: Add AUDIO pin controller for exynos7
sh-pfc: r8a7790: add MLB+ pin group
sh-pfc: r8a7791: add MLB+ pin group
...
If the pin is in HiZ mode when it is requested as GPIO its value cannot be
read (it always returns 0). In order to cope with the Linux GPIO subsystem
where we do not have such state at all, turn the pin to be input instead.
Reported-by: Jerome Blin <jerome.blin@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pin id for a given tuple listed in a fsl,pins property is calculated
by dividing the first entry (which is also a register offset) by 4.
As the first available register is at offset 0x8 and configures the pad
MX25_PAD_A10 the right id for this pin is 2. All other pins are off by
one, too.
This patch drops the definition MX25_PAD_RESERVE1 (together with its
only use) and decrements all following values by 1.
Fixes: b4a87c9b96 ("pinctrl: pinctrl-imx: add imx25 pinctrl driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The right check for conf_reg to be invalid it testing against -1 not 0
as is done in the rest of the driver.
This fixes an oops that can be triggered by:
cat /sys/kernel/debug/pinctrl/43fac000.iomuxc/*
Fixes: ae75ff8145 ("pinctrl: pinctrl-imx: add imx pinctrl core driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The .pin_config_get/set operation are not supported in qcom pinctrl
driver. As the pinconf core is smart enough it doesn't complain
about that.
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On newer TLMM hardware blocks the registers are spread and
we need an offsets upper than 16 bits to address them. Increase
the register offset variables to 32 bits size.
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The zynq and qcom-spmi pinctrl drivers both use pin_config_item arrays
to provide extra interfaces in debugfs. This structure and the
PCONFDUMP macro are not defined if CONFIG_DEBUG_FS is turned off,
so we get build errors like:
pinctrl/qcom/pinctrl-spmi-gpio.c:139:37: error: array type has incomplete element type
static const struct pin_config_item pmic_conf_items[ARRAY_SIZE(pmic_gpio_bindings)] = {
^
pinctrl/qcom/pinctrl-spmi-gpio.c:140:2: error: implicit declaration of function 'PCONFDUMP' [-Werror=implicit-function-declaration]
PCONFDUMP(PMIC_GPIO_CONF_PULL_UP, "pull up strength", NULL, true),
^
pinctrl/qcom/pinctrl-spmi-gpio.c:139:37: warning: 'pmic_conf_items' defined but not used [-Wunused-variable]
static const struct pin_config_item pmic_conf_items[ARRAY_SIZE(pmic_gpio_bindings)] = {
Lacking any better idea to solve this nicely, this patch uses #ifdef
to hide the structures, just like the pinctrl core does.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Rockchip GPIO interrupt controller totally throws away all status
about an interrupt when you "disable" the interrupt. That has
unfortunate consequences in the following situation:
1. An edge-triggered interrupt is enabled and should wake the system.
2. System suspend happens: interrupt is disabled and marked for wake.
3. rockchip_irq_suspend() reenables the interrupt so we can wake.
4. Interrupt happens when asleep.
5. rockchip_irq_resume() redisables the interrupt.
6. Disabling the interrupt throws away all status about it.
7. Normal system resume happens and we enable the interrupt again,
since we threw away status about the interrupt we don't know it
fired while suspended. Even worse: if we need both edges of the
interrupt the logic to swap edges never runs.
Note: even if we somehow can post the status about wakeup interrupts
in rockchip_irq_resume() we would still have a window of losing any
edges that came in while interrupts were disabled.
If we use mask only then we don't need to worry. The GPIO Interrupt
controller keeps track of pending interrupts that are enabled and just
masked.
There was no real strong reason to support the enable/disable
functionality (other than that it seemed right), so let's go back to
just supporting mask/unmask but actually map it to the real
mask/unmask. This ends up with slightly different (and more correct)
behavior than before (f2dd028 pinctrl: rockchip: Fix
enable/disable/mask/unmask).
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix usb0 pin 19 -> 29 (matching ethernet1 pins and manual).
Pin 19 is used for ethernet0 on the Parallella board.
Fixes: add958cee9 ("pinctrl: Add driver for Zynq")
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Remove sh7372 PFC support as part of the sh7372 and Mackerel
legacy code removal.
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add PFC support for the EMMA Mobile EV2 SoC including pin groups for
on-chip devices.
Signed-off-by: Niklas Söderlund <niso@kth.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Used to define pinmux configurations where the pinmux function have no
representation in the configuration registers but instead solely depends
on a group selection.
Signed-off-by: Niklas Söderlund <niso@kth.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Today we expect that all the bank are enabled, and count the number of banks
used by the pinctrl based on it instead of using the last bank id enabled.
So switch to it, set the chained IRQ at runtime based on enabled banks
and wait only the number of enabled gpio controllers at probe time.
Cc: <stable@vger.kernel.org> # 3.18
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This is a driver for the pinmux and GPIO controller available in
Amlogic Meson SoCs. It currently supports only Meson8, however the
common code should be generic enough to work also for other SoCs after
having defined the proper set of functions and groups.
GPIO interrupts are not supported at the moment due to lack of
documentation.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch fixes two checkpatch.pl warnings
WARNING: Error trailing white space
WARNING: MIssing blank line after declaration
Signed-off-by: Anjana Sasindran <anjanasasindran123@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Timur reports that this code crashes if nfunctions is 0. Fix the
loop iteration to only consider valid elements of the functions
array.
Reported-by: Timur Tabi <timur@codeaurora.org>
Cc: Pramod Gurav <pramod.gurav@smartplayin.com>
Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Cc: Ivan T. Ivanov <iivanov@mm-sol.com>
Cc: Andy Gross <agross@codeaurora.org>
Fixes: 327455817a "pinctrl: qcom: Add support for reset for apq8064"
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Audio IPs on Exynos7 require gpios available in AUDIO
pin controller block. So adding the AUDIO pinctrl support.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add MLB+ 3-pin mode pin group to R8A7790 PFC driver.
Based on original patch by Andrey Gusakov <andrey.gusakov@cogentembedded.com>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add MLB+ 3-pin mode pin group to R8A7791 PFC driver.
Based on original patch by Andrey Gusakov <andrey.gusakov@cogentembedded.com>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Mika Westerberg