It currently is required that all users of NO_SUSPEND interrupt
lines pass the IRQF_NO_SUSPEND flag when requesting the IRQ or the
WARN_ON_ONCE() in irq_pm_install_action() will trigger. That is
done to warn about situations in which unprepared interrupt handlers
may be run unnecessarily for suspended devices and may attempt to
access those devices by mistake. However, it may cause drivers
that have no technical reasons for using IRQF_NO_SUSPEND to set
that flag just because they happen to share the interrupt line
with something like a timer.
Moreover, the generic handling of wakeup interrupts introduced by
commit 9ce7a25849 (genirq: Simplify wakeup mechanism) only works
for IRQs without any NO_SUSPEND users, so the drivers of wakeup
devices needing to use shared NO_SUSPEND interrupt lines for
signaling system wakeup generally have to detect wakeup in their
interrupt handlers. Thus if they happen to share an interrupt line
with a NO_SUSPEND user, they also need to request that their
interrupt handlers be run after suspend_device_irqs().
In both cases the reason for using IRQF_NO_SUSPEND is not because
the driver in question has a genuine need to run its interrupt
handler after suspend_device_irqs(), but because it happens to
share the line with some other NO_SUSPEND user. Otherwise, the
driver would do without IRQF_NO_SUSPEND just fine.
To make it possible to specify that condition explicitly, introduce
a new IRQ action handler flag for shared IRQs, IRQF_COND_SUSPEND,
that, when set, will indicate to the IRQ core that the interrupt
user is generally fine with suspending the IRQ, but it also can
tolerate handler invocations after suspend_device_irqs() and, in
particular, it is capable of detecting system wakeup and triggering
it as appropriate from its interrupt handler.
That will allow us to work around a problem with a shared timer
interrupt line on at91 platforms.
Link: http://marc.info/?l=linux-kernel&m=142252777602084&w=2
Link: http://marc.info/?t=142252775300011&r=1&w=2
Link: https://lkml.org/lkml/2014/12/15/552
Reported-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Ben Hutchings says:
====================
sh_eth changes for net-next
Some minor new features and fixes.
These depend in part on the series I sent earlier for net, specifically
"sh_eth: WARN on access to a register not implemented in a particular
chip" depends on "sh_eth: Fix RX recovery on R-Car in case of RX ring
underrun".
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The statistics registers have write-clear behaviour, which means we
will lose any increment between the read and write. Mitigate this by
only clearing when we read a non-zero value, so we will never falsely
report a total of zero. This also saves time as we only handle
error statistics here and they won't often be incremented.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are many different sets of registers implemented by the
different versions of this controller, and we can only expect this to
get more complicated in future. Limit how much ethtool needs to know
by including an explicit bitmap of which registers are included in the
dump, allowing room for future growth in the number of possible
registers.
As I don't have datasheets for all of these, I've only included
registers that are:
- defined in all 5 register type arrays, or
- used by the driver, or
- documented in the datasheet I have
Add one new capability flag so we can tell whether the RTRATE
register is implemented.
Delete the TSU_ADRL0 and TSU_ADR{H,L}31 definitions, as they weren't
used and the address table is already assumed to be contiguous.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently we may silently read/write a register at offset 0. Change
this to WARN and then ignore the write or read-back all-ones.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
At least on the R8A7790, RFS8 reflects the RINT8 (multicast) MAC
status flag.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
* Do not make CMA reservation for R-Car Gen2 when HIGHMEM=n
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=Bdju
-----END PGP SIGNATURE-----
Merge tag 'renesas-soc-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
Pull "Renesas ARM Based SoC Updates for v4.1" from Simon Horman:
* Do not make CMA reservation for R-Car Gen2 when HIGHMEM=n
* tag 'renesas-soc-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: No R-Car Gen2 CMA reservation when HIGHMEM=n
- PM slowclock fixes for DDR and timeouts
- fix some DT entries
- little defconfig updates
- the removal of a harmful watchdog option + its detailed documentation
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iQEcBAABAgAGBQJU9uKaAAoJEAf03oE53VmQrT4IAID5RZZLycH65MfI2SWs5jHJ
riXpp2ByX2YMZhBV7Y+jSJcdty0zdZFXAm3cME8YtHSHFNW87y3U90BhL1JTwFh8
Rlk45xxauRmiH5R+0haBIavt+ZFHB8QOgmAE+xa4Vc/qBiry6HSgWVldk3yiai5j
Mnq/+UpeL7mSlcn9kFkbVVOkDiP2tRoITU0z780tBgywbUQEluNZan4MfjSaknzP
GEwmN74Z6QPUxhqc1Z1ACU84ozYcLYaiMksNXrTch0+dLz91MIRl6Eqb53XhJEK3
P8ysCj16UBgX2JuuYWBGkxrZ1Brl0Lj5075JrM+He0T/XRsLTChb+9rQ14QrKno=
=YpBm
-----END PGP SIGNATURE-----
Merge tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes
Merge "First fixes batch for AT91 on 4.0" from Nicolas Ferre:
- PM slowclock fixes for DDR and timeouts
- fix some DT entries
- little defconfig updates
- the removal of a harmful watchdog option + its detailed documentation
* tag 'at91-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: at91/dt: keep watchdog running in idle mode
dts: Documentation: AT91 Watchdog, explain what atmel,idle-halt property really do
ARM: at91/defconfig: add at91rm9200 ethernet support
ARM: at91/defconfig: remove CONFIG_SYSFS_DEPRECATED
ARM: at91/dt: at91sam9260: fix usart pinctrl
ARM: at91/dt: sama5d4: add missing alias for i2c0
ARM: at91/dt: at91sam9263: Fixup sram1 device tree node
ARM: at91: pm: fix SRAM allocation
ARM: at91: pm: fix at91rm9200 standby
pm: at91: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.
pm: at91: pm_slowclock: fix suspend/resume hang up in timeouts
Merge "Samsung fixes for v4.0" from Kukjin Kim:
* tag samsung-fixes-1:
ARM: EXYNOS: Fix wrong hwirq of RTC interrupt for Exynos3250 SoC
ARM: EXYNOS: Don't use LDREX and STREX after disabling cache coherency
- The thermal management unit and HDMI (drm mixer driver) related
reworks have been merged in v4.0 merge window. So if this DT changes
are missed for v4.0, we regressions in v4.0 release for exynos
platforms such as exynos5250, exynos5420, exynos4 SoCs.
- Note since there was a dependency with driver side, this cannot
be sent to upstream during preivous merge window and now it has been
resolved.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=gbWq
-----END PGP SIGNATURE-----
Merge tag 'samsung-fixes-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
Merge "Samsung tmu and hdmi regression fixes for v4.0" from Kukjin Kim:
- The thermal management unit and HDMI (drm mixer driver) related
reworks have been merged in v4.0 merge window. So if this DT changes
are missed for v4.0, we regressions in v4.0 release for exynos
platforms such as exynos5250, exynos5420, exynos4 SoCs.
- Note since there was a dependency with driver side, this cannot
be sent to upstream during preivous merge window and now it has been
resolved.
* tag 'samsung-fixes-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: dts: add display power domain for exynos5250
ARM: dts: add 'hdmi' clock to mixer nodes for exynos5250 and exynos5420
ARM: dts: enable hdmi support for exynos4210-universal_c210
ARM: dts: enable hdmi support for exynos4412-odroid-common
ARM: dts: add dependency between TV and LCD0 power domains for exynos4
ARM: dts: add hdmi related nodes for exynos4 SoCs
ARM: EXYNOS: add support for sub-power domains
dt-bindings: document a note about power domain subdomains
ARM: dts: Provide dt bindings identical for Exynos TMU
ARM: dts: Trip points and sensor configuration data for exynos5440
ARM: dts: define default thermal-zones for exynos4
ARM: dts: default trip points definition for exynos5420
ARM: dts: add TMU default definitions for exynos4412
ARM: dts: Adding CPU cooling binding for Exynos SoCs
ARM: dts: Enable TMU for exynos4412-odriod-common
ARM: dts: Add LDO10 for TMU for exynos4412-odroid-common
ARM: dts: Enable TMU for exynos4210-trats
PopMetal is a rockchip rk3288 based board made by ChipSpark,
which has many interface such as VGA,HDMI,usb,ir,sdcad and lots of
sensors such as gyroscope(L3G4200D),accelerometer(mma8452),
compass(AK8963C).
This patch add a basic support for this board, which make the board
boot into a initramfs shell with sdcard,hdmi and all sensors enabled
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
PopMetal board is a rk3288 based board made by ChipSpark, this
add root compatible property for it
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The ChromeOS EC is connected by LPC only on x86 platforms and no others,
so add a dependency describing that.
But also build the driver if the COMPILE_TEST option is enabled
to have build coverage in other architectures.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
[olof: reworded commit message]
Signed-off-by: Olof Johansson <olof@lixom.net>
The driver uses the inb() and outb() I/O functions so should
include the header file that has these functions definitions.
This patch fixes the following error when the header is not
explicitly included:
drivers/platform/chrome//cros_ec_lpc.c: In function ‘ec_response_timed_out’:
drivers/platform/chrome//cros_ec_lpc.c:40:3: error: implicit declaration of function ‘inb’ [-Werror=implicit-function-declaration]
drivers/platform/chrome//cros_ec_lpc.c: In function ‘cros_ec_cmd_xfer_lpc’:
drivers/platform/chrome//cros_ec_lpc.c:75:3: error: implicit declaration of function ‘outb’ [-Werror=implicit-function-declaration]
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Olof Johansson <olof@lixom.net>
drivers/platform/chrome/cros_ec_lpc.c:272:3-8: No need to set .owner here. The core will do it.
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
CC: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Fix the following sparse warning:
drivers/platform/chrome/cros_ec_lightbar.c:254:25: sparse: duplicate const
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Olof Johansson <olof@lixom.net>
Make sure socfpga_cpu1start_addr is properly flushed from it's cache line so
that secondary cpu's can see it.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
socfpga.dtsi is missing the DMA channels for the uart nodes.
This will produce the following errors:
of_dma_request_slave_channel: dma-names property of node '/soc/serial0@ffc02000' missing or empty
ttyS0 - failed to request DMA
Provide the correct DMA channels to fix this.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Correct SCU virtual mapping that was causing this BUG message:
"BUG: mapping for 0xfffec000 at 0xfffec000 out of vmalloc space"
Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJU9enEAAoJEHm+PkMAQRiG/ewIAJ4MW4tcAhaVj6ndCF3+uL/b
RaVm1apUjsTloe5Fl0TT9J5CO3zdOetmMNToy2sf0W4MJDIyHf21o83l7eniV/6q
al/c3fQ6HVtNjiSUNghTtzVlL+gUD1F60b9BGYi1V5h2Mp8u0NG1alTGLQfCB8sE
ArB+v2aWEdSPn7mZDA0Yuc1In+8bkpht3oy+OLD/8JNkqqLnml9YOyPjM1cuRpBr
NxKCLcPzSHH9/nR3T6XtkxXYV5xD3+CDm9roJhfHukoFmfT/G3C65Zcp2KEed/Cw
QQpu+ox7fpUs10F/Fbfm8AE+tRB4o2sGh97sprXrO5oaFdx6FPIBo4WN8i/Vy68=
=qpY+
-----END PGP SIGNATURE-----
Merge tag 'v4.0-rc2' into timers/core, to refresh the tree before pulling more changes
- minor timeout & other fixes on reservation/fence
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=k3LO
-----END PGP SIGNATURE-----
Merge tag 'dma-buf-for-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf
Pull dma-buf fixes from Sumit Semwal:
"Minor timeout & other fixes on reservation/fence"
* tag 'dma-buf-for-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf:
reservation: Remove shadowing local variable 'ret'
dma-buf/fence: don't wait when specified timeout is zero
reservation: wait only with non-zero timeout specified (v3)
In general, if a transaction object is added to the list successfully,
we can rely on the abort path to undo what we've done. This allows us to
simplify the error handling of the rule replacement path in
nf_tables_newrule().
This implicitly fixes an unnecessary removal of the old rule, which
needs to be left in place if we fail to replace.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The NFT_USERDATA_MAXLEN is defined to 256, however we only have a u8
to store its size. Introduce a struct nft_userdata which contains a
length field and indicate its presence using a single bit in the rule.
The length field of struct nft_userdata is also a u8, however we don't
store zero sized data, so the actual length is udata->len + 1.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Check that the space required for the expressions doesn't exceed the
size of the dlen field, which would lead to the iterators crashing.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
A race condition exists in the rule transaction code for rules that
get added and removed within the same transaction.
The new rule starts out as inactive in the current and active in the
next generation and is inserted into the ruleset. When it is deleted,
it is additionally set to inactive in the next generation as well.
On commit the next generation is begun, then the actions are finalized.
For the new rule this would mean clearing out the inactive bit for
the previously current, now next generation.
However nft_rule_clear() clears out the bits for *both* generations,
activating the rule in the current generation, where it should be
deactivated due to being deleted. The rule will thus be active until
the deletion is finalized, removing the rule from the ruleset.
Similarly, when aborting a transaction for the same case, the undo
of insertion will remove it from the RCU protected rule list, the
deletion will clear out all bits. However until the next RCU
synchronization after all operations have been undone, the rule is
active on CPUs which can still see the rule on the list.
Generally, there may never be any modifications of the current
generations' inactive bit since this defeats the entire purpose of
atomicity. Change nft_rule_clear() to only touch the next generations
bit to fix this.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
macb0 DT node can have phy child nodes, so add the #{address,
size}_cells for macb0 node.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Add the leds DT node in the dts file.
In the leds, d10 is set as heartbeat led.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Add alias, node declaration and pinctrl for i2c1 (aka: twi1).
Signed-off-by: Philip Attfield <phil.attfield@seqlabs.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Gpio-keys nodes are not using the "reg" property in their sub nodes.
So, there is no need to define #address-cells and #size-cells properties
in gpio-keys nodes: we remove them in these new boards.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
