| Commit message (Collapse) | Author | Age | Files | Lines |
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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: Russell King <linux@arm.linux.org.uk>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Imre Kaloz <kaloz@openwrt.org>
Acked-by: Krzysztof Halasa <khalasa@piap.pl>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Simtec Linux Team <linux@simtec.co.uk>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Init data marked const should be annotated with __initconst for
correctness and not __initdata. In some cases the array gathering
references to that data has to be marked const as well. This fixes
LTO builds that otherwise fail with section mismatch errors.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup
Second Round of Renesas ARM Based SoC Cleanup for v4.3
* Silence APMU build warnings
* tag 'renesas-cleanup2-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: apmu: silence build warnings
Signed-off-by: Olof Johansson <olof@lixom.net>
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With shmobile_defconfig but SMP=n && SUSPEND=n, I get:
arch/arm/mach-shmobile/platsmp-apmu.c:49:12: warning: 'apmu_power_off' defined but not used [-Wunused-function]
arch/arm/mach-shmobile/platsmp-apmu.c:70:12: warning: 'apmu_wrap' defined but not used [-Wunused-function]
Annotate those functions like the functions around it.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Merge "drop few more legacy boards for v4.3" from Tony Lindgren:
Drop more omap3 legacy board-*.c files for v4.3. This time we're
dropping the board files for omap3logic and omap3pandora.
The reason for dropping these now rather than later is that now
we can simply revert the patches in case of unexpected issues as
we are not dropping any platform data at this point.
This leaves us with only the following board-*.c files:
BOARD REASON NEEDED
board-ldp.c Still used in RMKs boot test system
board-rx51-*.c Needs /proc/atags support for user space
Once we have the n900 legacy user space issues sorted out for
/proc/atags and system_rev, we can drop the remaining two
board-*.c files. And then one merge window after that we can
drop the legacy booting support assuming no unexpected issues
are found.
* tag 'omap-for-v4.3/legacy-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Remove legacy booting support for Pandora
ARM: OMAP2+: Remove legacy booting support for LogicPD Torpedo
Signed-off-by: Olof Johansson <olof@lixom.net>
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We've been moving all omap2+ based systems to boot in device tree only
mode for a few years now. Only omap3 has legacy booting support
remaining. Most omap3 boards already have related arch/arm/boot/*.dts*
files for booting with device tree.
This board has support for device tree based booting, and we've been
printing warnings about the legacy booting being deprecated for a
few merge cycles now. Let's attempt to remove the legacy booting
for it.
The reason for removing the legacy booting support now rather than
later is we can simply revert this patch if necessary if we run
into some unexpected issues that are not trivial to fix for the
device tree based booting.
Cc: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We've been moving all omap2+ based systems to boot in device tree only
mode for a few years now. Only omap3 has legacy booting support
remaining. Most omap3 boards already have related arch/arm/boot/*.dts*
files for booting with device tree.
This board has support for device tree based booting, and we've been
printing warnings about the legacy booting being deprecated for a
few merge cycles now. Let's attempt to remove the legacy booting
for it.
The reason for removing the legacy booting support now rather than
later is we can simply revert this patch if necessary if we run
into some unexpected issues that are not trivial to fix for the
device tree based booting.
Cc: Tim Nordell <tim.nordell@logicpd.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into next/cleanup
Merge "EP93xx cleanups for v4.3" from Linus Walleij:
EP93xx cleanup and completing developments. This switches
EP93xx to generic time and brings in a few out-of-tree small
patches that were stalled for ages.
It also removes the need for memory config options and instead moves over to
using PATCH_PHYS_VIRT.
* tag 'ep93xx-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: ep93xx: simone: enable DMA on the SPI host
ARM: ep93xx: vision_ep9307: add audio support
ARM: ep93xx: vision_ep9307: enable DMA for SPI
ARM: ep93xx: toss the device ID into the entropy pool
ARM: ep93xx: remove memory configuration options
ARM: ep93xx: update comment on timer usage
ARM: ep93xx: switch clockevent to timer 3
ARM: ep93xx: use non-raw accessors for timer
ARM: ep93xx: switch to GENERIC_CLOCKEVENTS
ARM: ep93xx: move timer to its own file
Signed-off-by: Olof Johansson <olof@lixom.net>
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The SPI host on the SIM.ONE is used for the MMC/SD card and
will badly need this turbo boost.
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add I2S audio support to the vision_ep9307 system.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Enable the 'use_dma' flag in the SPI platform data to improve the speed
of the mmc_spi driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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It doesn't hurt to add this random stuff into the entropy pool
as is custom to do with device-unique numbers.
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The ARM_PATCH_PHYS_VIRT option makes the ep93xx memory configuration
options obsolete.
This allows support for all the ep93xx variations to be built into a
single kernel.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When refactoring the EP93xx timer some of the documentation
git out of date. Update it.
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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If we switch clock events to timer 3 we will have more bits to
use and can sleep longer when using NO_HZ.
Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The timer has no business using __raw accessors, in this case
the readl/writel makes perfect sense as the changes really need
to hit these registers before we continue.
Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This switches the EP93xx to use GENERIC_CLOCKEVENTS and
CLKSRC_MMIO. Also implements a sched_clock() hook.
Tested on the SIM.ONE. Use only oneshot events.
Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This breaks the timer code out of the core file in preparation
for refactoring.
Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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next/cleanup
Merge "Broadcom SoC changes for 4.3 (part 1)" from Florian Fainelli:
This pull request contains two fixes for the Broadcom BCM63xx SMP code:
- Sudeep removes an invalid use of cpu_logical_map() which turned to be a no-op
since we always boot from physical CPU 0 = logical CPU 0
- Florian removes the custom secondary_startup function and replaces it with
the generic one
* tag 'arm-soc/for-4.3/soc' of http://github.com/broadcom/stblinux:
ARM: BCM63xx: Remove custom secondary_startup function
ARM: BCM63xx: fix parameter to of_get_cpu_node in bcm63138_smp_boot_secondary
Signed-off-by: Olof Johansson <olof@lixom.net>
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With commit 02b4e2756e01c623cc4dbceae4b07be75252db5b ("ARM: v7 setup
function should invalidate L1 cache"), the default secondary_startup
function for ARMv7 CPUs does invalidate the L1 cache, which was the sole
reason why BCM63xx had to have its own secondary_startup implementation.
Now that the secondary_startup takes care of this, we can completely
remove that code.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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of_get_cpu_node provides the device node associated with the given
logical CPU and cpu_logical_map contains the physical id for each CPU
in the logical ordering. Passing cpu_logical_map(cpu) to of_get_cpu_node
is incorrect.
This patch fixes the issue by passing the logical CPU number to
of_get_cpu_node
Fixes: ed5cd8163da8 ("ARM: BCM63xx: Add SMP support for BCM63138")
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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next/cleanup
Merge "ARM: mvebu: cleanup changes for v4.3" from Gregory Clement:
mvebu cleanup changes for v4.3 (part #1)
- Use vsprintf %pM extension on orion5x board to format mac address
- Add missing newline at end of messages on pr_warn when CPU Idle on
Armada 38x is disabled
* tag 'mvebu-cleanup-4.3-1' of git://git.infradead.org/linux-mvebu:
ARM: orion5x: Use vsprintf %pM extension
ARM: mvebu: add missing newline at end of messages
Signed-off-by: Olof Johansson <olof@lixom.net>
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Format mac addresses with the normal kernel extension.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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Commit 548ae94c1cc7f ("ARM: mvebu: Disable CPU Idle on Armada 38x")
added two new pr_warn() messages in mach-mvebu/pmsu.c. However, these
messages lack the final new line, causing the next message to be
displayed on the same line.
This commit adds the missing ending newlines.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux into next/cleanup
Merge "ARM: clockevents: Migrate to 'set-state' callbacks" from Viresh Kumar:
This series migrates ARM clockevent drivers (present in arch/arm/
directory), to the new set-state interface. This would enable these
drivers to use new states (like: ONESHOT_STOPPED, etc.) of a clockevent
device (if required), as the set-mode interface is marked obsolete now
and wouldn't be expanded to handle new states.
* 'ARM/clkevt/set-state-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux:
ARM/orion/time: Migrate to new 'set-state' interface
ARM/iop/time: Migrate to new 'set-state' interface
ARM/w90x900/time: Migrate to new 'set-state' interface
ARM/SPEAr/time: Migrate to new 'set-state' interface
ARM/omap2/timer: Migrate to new 'set-state' interface
ARM/omap1/timer32: Migrate to new 'set-state' interface
ARM/omap1/time: Migrate to new 'set-state' interface
ARM/netx/time: Migrate to new 'set-state' interface
ARM/mmp/time: Migrate to new 'set-state' interface
ARM/lpc32xx/timer: Migrate to new 'set-state' interface
ARM/ks8695/time: Migrate to new 'set-state' interface
ARM/ixp4xx/timer: Migrate to new 'set-state' interface
ARM/imx/epit: Migrate to new 'set-state' interface
ARM/gemini/time: Migrate to new 'set-state' interface
ARM/dc21285-timer: Migrate to new 'set-state' interface
ARM/davinci/time: Migrate to new 'set-state' interface
ARM/cns3xxx/timer: Migrate to new 'set-state' interface
ARM/smp_twd: Migrate to new 'set-state' interface
Signed-off-by: Olof Johansson <olof@lixom.net>
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Migrate orion driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate iop driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate w90x900 driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Cc: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate SPEAr driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Also kill the unnecessary forward declaration of set-mode routine by
moving 'struct clock_event_device clkevt' towards the bottom of the file.
Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate omap2 driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate omap timer32 driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate omap driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate netx driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
We aren't writing zero twice on the control register for shutdown or
resume state now.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate mmp driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
We weren't doing anything in set_mode(RESUME) except of
local_irq_{save|restore}(), which isn't required and so ->tick_resume
isn't implemented.
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate lpc32xx driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate ks8695 driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
There is nothing to be done for oneshot or shutdown states and so are
not implemented.
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate ixp4xx driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
NOTE: ixp4xx_set_{oneshot|periodic} don't perform read operation on
'IXP4XX_OSRT1' register anymore.
Cc: Imre Kaloz <kaloz@openwrt.org>
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate imx driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Also drop 'clockevent_mode': It was caching the last state of the
clockevent device. The same behavior can be achieved by using
clockevents state helpers. These helpers are only required for oneshot
mode as shutdown/resume wouldn't be done twice by the core.
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate gemini driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate footbridge driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate davinci driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
We weren't doing anything in set_mode(RESUME) and so .tick_resume()
isn't implemented.
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate cns3xxx driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
NOTE: We don't read TIMER1_2_CONTROL_OFFSET register on shutdown
anymore.
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Migrate smp_twd driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.
This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup
Merge "Renesas ARM Based SoC PM Domain Updates for v4.3" from Simon Horman:
* Make rcar_sysc_ch const for r8a779[09] SoCs
* Get rid of on_off_fn() function pointer
* Use BIT() macro instead of open coding
* Make struct rcar_sysc_ch * parameters const
* Break infinite loop
* Shrink rcar_sysc_ch size
* Improve documentation
* tag 'renesas-pm-domain-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7790: Make struct rcar_sysc_ch const
ARM: shmobile: r8a7779: Make struct rcar_sysc_ch const
ARM: shmobile: R-Car: Get rid of on_off_fn() function pointer
ARM: shmobile: R-Car: Use BIT() macro instead of open coding
ARM: shmobile: R-Car: Make struct rcar_sysc_ch * parameters const
ARM: shmobile: R-Car: Break infinite loop
ARM: shmobile: R-Car: Shrink rcar_sysc_ch size
ARM: shmobile: R-Car: Improve documentation
Signed-off-by: Olof Johansson <olof@lixom.net>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Simplify the power request code by passing an "on" flag, and picking the
right status bit and register offset in the innermost function, based on
this flag.
This allows to remove the rcar_sysc_pwr_{off,on}() helper functions, and
the function pointer through which they were called.
Make sr_bit and reg_offs unsigned while we're at it.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The passed struct rcar_sysc_ch is never modified, so it can be const.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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rcar_sysc_update() loops (with interrupts disabled and while holding a
spinlock) until submitting a power shutoff or resume request fails, or
until the submitted request was accepted.
If none of these conditions becomes true, this forms an infinite loop.
Put a limit on the maximum number of loop iterations, and add a small
delay to each iteration, to fix this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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