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Convert mdio-mux-gpio to the GPIO descriptor interface and use the new
gpiod_set_array function to set all output signals simultaneously.
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Although gpiod_get_direction() can be considered side-effect free for
consumers, its internals involve setting or clearing bits in the
affected GPIO descriptor, for which we need to force-cast the const
descriptor variable to non-const. This could lead to incorrect behavior
if the compiler decides to optimize here, so remove this const
attribute. The intent is to make gpiod_get_direction() private anyway,
so it does not really matter.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers
Pull "Samsung driver update for v3.19" from Kukjin Kim:
- Change samsung serial dependencies for exynos7 (ARMv8)
* tag 'samsung-driver' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
serial: samsung: Fix serial config dependencies for exynos7
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Pull "Samsung PM 3rd updates for v3.19" from Kukjin Kim:
- exynos3250
: add PMU support
- PMU refactoring
: move restart code into PMU driver
: move restart code for exynos440 into clk driver
- use u8 for val[] in struct exynos_pmu_conf
Note that this branch is based on tags/samsung-exynos-v3.19
* tag 'samsung-pm-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
ARM: EXYNOS: move restart code into pmu driver
clk: exynos5440: move restart code into clock driver
ARM: EXYNOS: add exynos3250 PMU support
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This is a specific implementation, <asm/unaligned.h> is the
multiplexer that has the arch-specific knowledge of which
of the implementations needs to be used, so include that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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In 3-to-8 mux mode for the CS pins we need to set the PERI_SEL bit in the
control register. Currently the driver never sets this bit even when
configured for 3-to-8 mux mode. This patch adds code which sets the bit
during device initialization when necessary.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Harini Katakam <harinik@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This will make it possible to use the settings specified in the devicetree
to configure the hardware.
Signed-off-by: Paul Cercueil <paul.cercueil@analog.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Replace the ARCH_NR_GPIOS-sized static array of GPIO descriptors by
dynamically-allocated arrays for each GPIO chip.
This change makes gpio_to_desc() perform in O(n) (where n is the number
of GPIO chips registered) instead of O(1), however since n is rarely
bigger than 1 or 2 no noticeable performance issue is expected.
Besides this provides more incentive for GPIO consumers to move to the
gpiod interface. One could use a O(log(n)) structure to link the GPIO
chips together, but considering the low limit of n the hypothetical
performance benefit is probably not worth the added complexity.
This patch uses kcalloc() in gpiochip_add(), which removes the ability
to add a chip before kcalloc() can operate. I am not aware of such
cases, but if someone bisects up to this patch then I will be proven
wrong...
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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gpiolib's gpiod_get_direction() function returns the EINVAL error
if .get_direction callback is not defined.
The patch implements the callback for mxs chip which is useful
for debugging.
Inspired by arch/arm/mach-at91/gpio.c
On the moment the patch is required to get the patch
"serial: mxs-auart: enable PPS support" working.
It is planned to introduce new mctrl_gpio helpers to avoid
gpiod_get_direction() function.
Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Use dynamic allocation of GPIOs instead of looking at the gpio%u alias
in DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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In case somebody attempted to open the device during online
processing the partition detection ioctl may have failed.
Added a retry loop to avoid not detected partitions.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Fix race for sleep_on requests leading to list corruption.
The SLEEP_ON_END_TAG is set during CQR clean up. Remove it from
interrupt handler to avoid the CQR from being cleared when it is
still in the device_queue.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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During device activation all paths could be lost and since the device
is not active it has no indication of this fact - hence the CQR will
time-out. The following cancelation might fail with -EINVAL because
CIO took over control and started path verification. In this case mark
the CQR as being CLEARED since it could not be running any more.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Allow to specify the Compoment ID for Call Home via the kernel
configuration. This removes the need for distribution specific
patch against the sclp_async.c source file.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://anongit.freedesktop.org/drm-intel into drm-fixes
Two regression fixes from Ville.
* tag 'drm-intel-fixes-2014-11-27' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Cancel vdd off work before suspend
drm/i915: Ignore SURFLIVE and flip counter when the GPU gets reset
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Pull networking fixes from David Miller:
"Several small fixes here:
1) Don't crash in tg3 driver when the number of tx queues has been
configured to be different from the number of rx queues. From
Thadeu Lima de Souza Cascardo.
2) VLAN filter not disabled properly in promisc mode in ixgbe driver,
from Vlad Yasevich.
3) Fix OOPS on dellink op in VTI tunnel driver, from Xin Long.
4) IPV6 GRE driver WCCP code checks skb->protocol for ETH_P_IP
instead of ETH_P_IPV6, whoops. From Yuri Chislov.
5) Socket matching in ping driver is buggy when packet AF does not
match socket's AF. Fix from Jane Zhou.
6) Fix checksum calculation errors in VXLAN due to where the
udp_tunnel6_xmit_skb() helper gets it's saddr/daddr from. From
Alexander Duyck.
7) Fix 5G detection problem in rtlwifi driver, from Larry Finger.
8) Fix NULL deref in tcp_v{4,6}_send_reset, from Eric Dumazet.
9) Various missing netlink attribute verifications in bridging code,
from Thomas Graf.
10) tcp_recvmsg() unconditionally calls ipv4 ip_recv_error even for
ipv6 sockets, whoops. Fix from Willem de Bruijn"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
net-timestamp: make tcp_recvmsg call ipv6_recv_error for AF_INET6 socks
bridge: Sanitize IFLA_EXT_MASK for AF_BRIDGE:RTM_GETLINK
bridge: Add missing policy entry for IFLA_BRPORT_FAST_LEAVE
net: Check for presence of IFLA_AF_SPEC
net: Validate IFLA_BRIDGE_MODE attribute length
bridge: Validate IFLA_BRIDGE_FLAGS attribute length
stmmac: platform: fix default values of the filter bins setting
net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
net: dsa: bcm_sf2: reset switch prior to initialization
net: dsa: bcm_sf2: fix unmapping registers in case of errors
tg3: fix ring init when there are more TX than RX channels
tcp: fix possible NULL dereference in tcp_vX_send_reset()
rtlwifi: Change order in device startup
rtlwifi: rtl8821ae: Fix 5G detection problem
Revert "netfilter: conntrack: fix race in __nf_conntrack_confirm against get_next_corpse"
vxlan: Fix boolean flip in VXLAN_F_UDP_ZERO_CSUM6_[TX|RX]
ip6_udp_tunnel: Fix checksum calculation
net-timestamp: Fix a documentation typo
net/ping: handle protocol mismatching scenario
af_packet: fix sparse warning
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"There's a couple of driver fixes here, plus one core fix for the DMA
mapping which wasn't doing the right thing for vmalloc()ed addresses
that hadn't been through kmap(). It's fairly rare to use vmalloc()
with SPI and it's a subset of those users who might fail so it's
unsurprising that this wasn't noticed sooner"
* tag 'spi-v3.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: sirf: fix word width configuration
spi: Fix mapping from vmalloc-ed buffer to scatter list
spi: dw: Fix dynamic speed change.
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
"The main change is to fix breakage in Elantech driver introduced by
the recent commit adding trackpoint reporting to protocol v4. Now we
are trusting the hardware to advertise the trackpoint properly and do
not try to decode the data as trackpoint if firmware told us it is not
present"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - use proper endpoint type
Input: elantech - trust firmware about trackpoint presence
Input: synaptics - adjust min/max on Thinkpad E540
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The unittest code has a MODULE_DEVICE_TABLE that isn't needed by any of
the unittests, and isn't even correct. Remove it.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
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This patch adds the 2 physical clocks for the mmc (drive and sample). They're
mostly there for the phase properties, but they also show the true clock
(by dividing by RK3288_MMC_CLKGEN_DIV).
The drive and sample phases are generated by dividing an upstream parent clock
by 2, this allows us to adjust the phase by 90 deg.
There's also an option to have up to 255 delay elements (40-80 picoseconds long).
This driver uses those elements (under the assumption that they're 60 ps long)
to generate approximate 22.5 degrees options. 67.5 (22.5*3) might be as high as
90 deg if the delay elements are as big as 80 ps, so a finer division (smaller
than 22.5) was not picked because the phase might not be monotonic anymore.
Suggested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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This exposes the clock that comes out of the i2s block which generally
goes to the audio codec.
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
[removed CLK_SET_RATE_PARENT from original patch]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Was stop_bits_none, corrected to stop_bits_zero.
David E. Box.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add extra set of parens for assignments within an expression.
This patch only affects compiler support which is not in the Linux kernel.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Now emit ASL+ code which includes C-style operators.
Optionally, legacy text ASL operators can still be emitted.
This patch only affects compiler/disassembler support which is not in the
Linux kernel.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This option (-fi) allows the specification of a file that is used
to specify initialization values for individual namespace objects.
Each line in the file is in the format:
<ACPI pathname> <Integer Value>
This patch only affects acpiexec which is not in the Linux kernel.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This macro is intended to simplify the constuction of _PLD buffers.
NOTE: Prototype only, subject to change before this macro is
added to the ACPI specification. David E. Box.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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It referenced of_property_read_string_util whereas the function name
is of_property_read_string_helper.
Introduced in a87fa1d81a9fb5e9adca9820e16008c40ad09f33 (of: Fix
overflow bug in string property parsing functions). Found out when
reviewing the stable 3.12 queue.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
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The DLink GO-USB-N150 with revision B1 uses this driver.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-testing
Kishon writes:
Improvements in phy-core specifically on PHY core finds the PHY in the case
of non-dt boot. Adds three new PHY drivers using the PHY framework and some
miscellaneous fixes and cleanups.
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These macros aren't used anywhere, so just remove them.
Cc: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add system suspend/resume capabilities to the pl330 driver so the amba
bus clock could be also unprepared to conserve energy.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The task_collector mode (or "latency_injector", (C) Dan Willians) is an
optional I/O path in libsas that queues up scsi commands instead of
directly sending it to the hardware. It generall increases latencies
to in the optiomal case slightly reduce mmio traffic to the hardware.
Only the obsolete aic94xx driver and the mvsas driver allowed to use
it without recompiling the kernel, and most drivers didn't support it
at all.
Remove the giant blob of code to allow better optimizations for scsi-mq
in the future.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
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Remove dma_cache_sync call to fix build on other architectures.
Driver still works fine on x86 without that.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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This reverts commit 75185f57f110a7c48d9d33a585320c93334adf0c because it
modified the .gitignore file in the root of the tree, without saying it
did so, which isn't acceptable.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Otherwise we'd still end up w/ the plane attached to the CRTC, and
seemingly active, but without an FB. Which ends up going *boom*
in the drivers.
Slightly modified version of Daniel's irc suggestion.
Note that the big problem isn't drivers going *boom* here (since we
already have the situation of planes being left enabled when the crtc
goes down). The real issue is that the core assumes the primary plane
always goes down when calling ->set_config with a NULL mode. Ignoring
that assumption leads to the legacy state pointers plane->fb/crtc
getting out of sync with atomic, and that then leads to the subsequent
*boom* all over the place.
CC: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet: Drop my opinion of what's going sidewides here into the
commit message as a note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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So the problem with async commit (especially async modeset commit) is
that the legacy pointers only get updated after the point of no
return, in the async part of the modeset sequence. At least as
implemented by the current helper functions. This is done in the
set_routing_links function in drm_atomic_helper.c.
Which also means that access isn't protected by locks but only
coordinated by synchronizing with async workers. No problem thus far,
until we lock at the getconnector/encoder ioctls.
So fix this up by adding special cases for atomic drivers: For those
we need to look at state objects. Unfortunately digging out the
correct encoder->crtc link is a bit of work, so wrap this up in a
helper function.
Moving the assignments of connector->encoder and encoder->crtc earlier
isn't a good idea because the point of the atomic helpers is that we
stage the state updates. That way the disable functions can still
inspect the links and rely upon them.
v2: Extract full encoder->crtc lookup into helper (Rob).
v3: Extract drm_connector_get_encoder too since - we need to always
return state->best_encoder when there is a state otherwise we might
return stale data if there's a pending async disable (and chase
unlocked pointers, too). Same issue with encoder_get_crtc but there
it's a bit more tricky to handle.
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Lightly-Tested-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Chasing plane->state->crtc of planes that are *not* part of the same
atomic update is racy, making it incredibly awkward (or impossible) to
do something simple like iterate over all planes and figure out which
ones are attached to a crtc.
Solve this by adding a bitmask of currently attached planes in the
crtc-state.
Note that the transitional helpers do not maintain the plane_mask. But
they only support the legacy ioctls, which have sufficient brute-force
locking around plane updates that they can continue to loop over all
planes to see what is attached to a crtc the old way.
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet:
- Drop comments about locking in set_crtc_for_plane since they're a
bit misleading - we already should hold lock for the current crtc.
- Also WARN_ON if get_state on the old crtc fails since that should
have been done already.
- Squash in fixup to check get_plane_state return value, reported by
Dan Carpenter and acked by Rob Clark.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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It doesn't make much sense to make some (possible expensive) calls to
gpio_is_valid() first, and to ignore the result if the base number is
negative. Check for a positive base number first.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Currently this implementation only supports one IRQ for (all) SPI devices
using the same chip select.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Request a shared interrupt when requesting a mcp23s08 GPIO interrupt.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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If devm_request_threaded_irq fails for some reason we call
mcp23s08_irq_teardown afterwards.
Do not free the unrequested interrupt in this case. free_irq can also be
omitted for the error free case because we use devm_request_threaded_irq.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The device tree probing for R-Car M2-N (r8a7793) and R-Car E2 (r8a7794)
is added.
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add a set_multiple function to the MPC8xxx GPIO chip driver and thereby allow
for actual performance improvements when setting multiple outputs
simultaneously. In my case the time needed to configure an FPGA goes down from
48 s to 20 s.
Change log:
v6: - rebase on current linux-gpio devel branch
v5: - no change
v4: - change interface of the set_multiple driver function to use
unsigned long as type for the bit fields
- use generic bitops (which also use unsigned long for bit fields)
v3: - change commit message
v2: - add this patch (v1 included only changes to gpiolib)
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Introduce new functions gpiod_set_array & gpiod_set_raw_array to the consumer
interface which allow setting multiple outputs with just one function call.
Also add an optional set_multiple function to the driver interface. Without an
implementation of that function in the chip driver outputs are set
sequentially.
Implementing the set_multiple function in a chip driver allows for:
- Improved performance for certain use cases. The original motivation for this
was the task of configuring an FPGA. In that specific case, where 9 GPIO
lines have to be set many times, configuration time goes down from 48 s to
20 s when using the new function.
- Simultaneous glitch-free setting of multiple pins on any kind of parallel
bus attached to GPIOs provided they all reside on the same chip and bank.
Limitations:
Performance is only improved for normal high-low outputs. Open drain and
open source outputs are always set separately from each other. Those kinds
of outputs could probably be accelerated in a similar way if we could
forgo the error checking when setting GPIO directions.
Change log:
v6: - rebase on current linux-gpio devel branch
v5: - check can_sleep property per chip
- remove superfluous checks
- supplement documentation
v4: - add gpiod_set_array function for setting logical values
- change interface of the set_multiple driver function to use
unsigned long as type for the bit fields
- use generic bitops (which also use unsigned long for bit fields)
- do not use ARCH_NR_GPIOS any more
v3: - add documentation
- change commit message
v2: - use descriptor interface
- allow arbitrary groups of GPIOs spanning multiple chips
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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It is not necessarily sufficient to look only at the physical and logical
usages when determining if a field is for the pen or touch. Some fields
are not contained in a sub-collection and thus only have an application
usage. Not checking the application usage in such cases causes us to
ignore the field entirely, which may lead to incorrect behavior.
Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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irq_of_parse_and_map() returns 0 on error, so testing for negative
result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The Meson SPIFC driver uses regmap mmio functions and so it must
select REGMAP_MMIO to avoid the following build error:
spi-meson-spifc.c: undefined reference to `devm_regmap_init_mmio_clk'
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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