- 19 Jan, 2015 4 commits
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Wei Chen authored
Current sx150x gpio expander driver doesn't support DTS. Now we added dts support for this driver. 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>
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Rojhalat Ibrahim authored
Add set_multiple functions to the generic driver for memory-mapped GPIO controllers to improve performance when setting multiple outputs simultaneously. Signed-off-by:
Rojhalat Ibrahim <imr@rtschenk.de> Signed-off-by:
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Varka Bhadram authored
Commit ffe4770b ("gpio-amd8111: check ioport_map return value") adds the error check on ioport_map(). It doesnt release the requested region. On failure this patch release the region that has requested before. Signed-off-by:
Varka Bhadram <varkab@cdac.in> Reported-by:
Alexandre Courbot <gnurou@gmail.com> Signed-off-by:
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Kamlakant Patel authored
Include linux/slab.h to fix following compilation error. drivers/gpio/gpio-ge.c: In function ‘gef_gpio_probeâ€
™ : drivers/gpio/gpio-ge.c:95:2: error: implicit declaration of function ‘kfree’ [-Werror=implicit-function-declaration] kfree(bgc->gc.label); Signed-off-by:Kamlakant Patel <kamlakant.patel@linaro.org> Signed-off-by:
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- 16 Jan, 2015 1 commit
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Kamlakant Patel authored
This patch converts GE GPIO driver to use basic_mmio_gpio generic library. Signed-off-by:
Martyn Welch <martyn.welch@ge.com> Signed-off-by:
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- 15 Jan, 2015 30 commits
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Mohammad Jamal authored
Fix the coding style issue by adding a blank line after declaration Signed-off-by:
Mohammad Jamal <md.jamalmohiuddin@gmail.com> Signed-off-by:
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Semen Protsenko authored
Add a devicetree binding documentation for the max732x driver. Signed-off-by:
Semen Protsenko <semen.protsenko@globallogic.com> Signed-off-by:
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Semen Protsenko authored
This patch was derived from next one: "gpio: fix pca953x set_type 'scheduling while atomic' bug". After adding entry that consumes max732x GPIO as interrupt line to dts file, deadlock appears somewhere in max732x probe function. Deadlock caught by lockdep (from kernel log): <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< cut here >>>>>>>>>>>>>>>>>>>>>>>>>>> [ 0.473419] ====================================================== [ 0.473419] [ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ] [ 0.473449] 3.x.xx-xxxxx-xxxxxxxx-dirty #2 Tainted: G W [ 0.473449] ------------------------------------------------------ [ 0.473449] swapper/0/1 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 0.473449] (&lock->wait_lock){+.+...}, at: [<c072e350>] rt_mutex_trylock+0xc/0x74 [ 0.473480] [ 0.473480] and this task is already holding: [ 0.473510] (&chip->lock){......}, at: [<c0314514>] max732x_gpio_set_value+0x2c/0xa4 [ 0.473541] which would create a new lock dependency: [ 0.473541] (&chip->lock){......} -> (&lock->wait_lock){+.+...} ... [ 0.474273] *** DEADLOCK *** [ 0.474273] [ 0.474273] 5 locks held by swapper/0/1: [ 0.474273] #0: (&__lockdep_no_validate__){......}, at: [<c03b2328>] __driver_attach+0x48/0x98 [ 0.474304] #1: (&__lockdep_no_validate__){......}, at: [<c03b2338>] __driver_attach+0x58/0x98 [ 0.474334] #2: (&chip->irq_lock){+.+...}, at: [<c0313e3c>] max732x_irq_bus_lock+0x14/0x20 [ 0.474365] #3: (&irq_desc_lock_class){-.....}, at: [<c00a65a4>] __irq_get_desc_lock+0x48/0x88 [ 0.474365] #4: (&chip->lock){......}, at: [<c0314514>] max732x_gpio <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< cut here >>>>>>>>>>>>>>>>>>>>>>>>>>> Signed-off-by: -
Semen Protsenko authored
Signed-off-by:
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Semen Protsenko authored
Signed-off-by:
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Ricardo Ribalda Delgado authored
X86 Kconfig symbol is X86, not ARCH_X86. Fixes: c586b3075d5b47d8 (gpio/xilinx: Add support for X86 Arch) Reported-by:
Paul Bolle <pebolle@tiscali.nl> Signed-off-by:
Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by:
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Geert Uytterhoeven authored
Switch the R-Car Gen2 GPIO driver to use the gpiolib irqchip helpers. While doing this also make sure that gpiochip_irqchip_add() is called after the gpiochip itself is registered, as required. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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Geert Uytterhoeven authored
If the call to devm_kzalloc() fails, nothing must be cleant up. This was missed before because gpio_rcar_probe() had a "return" statement after the first "goto err0". Signed-off-by:
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Andrew Lunn authored
Ensure that when there is an error during probe that the gpiochip is removed and the generic irq chip is removed. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Andrew Lunn authored
Wrap some long lines. Prefer seq_puts() over seq_printf(). space to tab conversions. Spelling error fix. Signed-off-by:
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Olliver Schinagl authored
Checkpatch complains, and probably with good reason that we should use const char const * for the static constant array that never gets changed. Signed-off-by:
Olliver Schinagl <oliver@schinagl.nl> Signed-off-by:
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Olliver Schinagl authored
Right now, in consumer.h, there's some vararg hacks that pass 0 as the flags. What actually is passed however is GPIOD_ASIS, which naturally is also 0. Using the define/enum rather then the magic 0 makes it the define more readable to a passer by. Signed-off-by:
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Varka Bhadram authored
ioport_map() may fail. Its safe to check the return value. Signed-off-by:
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Axel Lin authored
Use resource managed APIs to simplify the code a bit. Signed-off-by:
Axel Lin <axel.lin@ingics.com> Signed-off-by:
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Axel Lin authored
Use resource_size to fix off-by-one resource size calculation Signed-off-by:
James Hogan <james.hogan@imgtec.com> Signed-off-by:
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Wolfram Sang authored
This platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by:
Wolfram Sang <wsa@the-dreams.de> Signed-off-by:
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Axel Lin authored
Fix a copy-paste bug. Signed-off-by:
Alexandre Courbot <acourbot@nvidia.com> Signed-off-by:
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Dan Carpenter authored
"gc->ngpio" is a number between 1 and GRGPIO_MAX_NGPIO. If "offset" is GRGPIO_MAX_NGPIO then we're going one step beyond the end of the priv->lirqs[] array. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
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Linus Walleij authored
This device is only used from the device tree, and the startup() and remove() callbacks are not used anywhere in the kernel, so retire them and the pdata altogether. Cc: Samuel Ortiz <sameo@linux.intel.com> Acked-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
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Axel Lin authored
Use devm_* APIs to simplify the code a bit. Signed-off-by:
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Ricardo Ribalda Delgado authored
Use the newly created of_mm_gpiochip_remove function for cleaning up of_mm_gpiochip_add Suggested-by:
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Ricardo Ribalda Delgado authored
Create counterpart of of_mm_gpiochip_add(). This way the modules that can be removable do not duplicate the cleanup code. Suggested-by:
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Ricardo Ribalda Delgado authored
Currently, we had two gpio chips on cores configured as dual. This lead to mapping the same memory region twice and duplicating the init and remove code. This patch creates a single gpiochip for single and dual cores. Suggested-by:
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Ricardo Ribalda Delgado authored
Some documentation were not following the kernel-doc format. Backporting patch from Xilinx git repository. Suggested-by:
Michal Simek <michal.simek@xilinx.com> Acked-by:
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Ricardo Ribalda Delgado authored
Core can be accessed via PCIe on X86 platform. This patch also allows the driver to be used as module. Acked-by:
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Ricardo Ribalda Delgado authored
This way we do not need to transverse the device tree manually and we support hot plugged devices. Also Implement remove callback so the driver can be unloaded Acked-by:
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Ricardo Ribalda Delgado authored
Instead of calculating the register offset per call, pre-calculate it on probe time. Acked-by:
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Chang Rebecca Swee Fun authored
Intel Quark X1000 provides a total of 16 GPIOs. The GPIOs are split between the legacy I/O bridge and the GPIO controller. GPIO-SCH is the GPIO pins on legacy bridge for Intel Quark SoC. Intel Quark X1000 has 2 GPIOs powered by the core power well and 6 from the suspend power well. This piece of work is derived from Dan O'Donovan's initial work for Quark X1000 enabling. Signed-off-by:
Chang Rebecca Swee Fun <rebecca.swee.fun.chang@intel.com> Reviewed-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by:
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Wei Chen authored
semtech has two series of sx150x gpio expanders: sx150x-456 and sx150x-789. The current gpio-150x driver in linux only support sx1508 and sx1509. We added sx1506 support code into this driver. Signed-off-by:
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Wei Chen authored
The sx150x gpio driver used a loop to set liner irq map for gpio pins. Now we use the irq domain to rebuild this irq mappig and make sure the codes are still compatible to old users. this patch also adds IRQF_ONESHOT flag to fix the IRQ flooding issues. Signed-off-by:
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- 09 Jan, 2015 1 commit
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Kamlakant Patel authored
This patch converts MOXART GPIO driver to use basic_mmio_gpio generic library. Signed-off-by:
Jonas Jensen <jonas.jensen@gmail.com> Signed-off-by:
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- 29 Dec, 2014 1 commit
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Linus Torvalds authored
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- 28 Dec, 2014 3 commits
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM fixes from Paolo Bonzini: "The important fixes are for two bugs introduced by the merge window. On top of this, add a couple of WARN_ONs and stop spamming dmesg on pretty much every boot of a virtual machine" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: warn on more invariant breakage kvm: fix sorting of memslots with base_gfn == 0 kvm: x86: drop severity of "generation wraparound" message kvm: x86: vmx: reorder some msr writing
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs fix from Al Viro: "An embarrassing bug in lustre patches from this cycle ;-/" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: [regression] braino in "lustre: use is_root_inode()"
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Paolo Bonzini authored
Modifying a non-existent slot is not allowed. Also check that the first loop doesn't move a deleted slot beyond the used part of the mslots array. Signed-off-by:Paolo Bonzini <pbonzini@redhat.com>
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