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There is error from cppcheck tool.
"Shifting signed 32-bit value by 31 bits is undefined behaviour errors"
This error is false positive.
change to use BIT() macro for improvement.
Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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This commit removes the open-coded CPU-offline notification with new
common code. In particular, this change avoids calling scheduler code
using RCU from an offline CPU that RCU is ignoring. This is a minimal
change. A more intrusive change might invoke the cpu_check_up_prepare()
and cpu_set_state_online() functions at CPU-online time, which would
allow onlining throw an error if the CPU did not go offline properly.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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clang warns:
arch/arm/mach-iop13xx/pci.c:292:7: warning: logical not is only applied
to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!iop13xx_atux_pci_status(1) == 0)
^ ~~
arch/arm/mach-iop13xx/pci.c:439:7: warning: logical not is only applied
to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!iop13xx_atue_pci_status(1) == 0)
^ ~~
!func() == 0 is equivalent to func(), which clears up this warning and
makes the code more readable.
Link: https://github.com/ClangBuiltLinux/linux/issues/543
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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In the commit ef41b5c92498 ("ARM: make kernel oops easier to read"),
- .word 0xe92d0000 >> 10 @ stmfd sp!, {}
+ .word 0xe92d0000 >> 11 @ stmfd sp!, {}
then the shift need to change to 11.
Signed-off-by: Lvqiang Huang <Lvqiang.Huang@unisoc.com>
Signed-off-by: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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A timing hazard exists when an early fork/exec thread begins
exiting and sets its mm pointer to NULL while a separate core
tries to update the section information.
This commit ensures that the mm pointer is not NULL before
setting its section parameters. The arguments provided by
commit 11ce4b33aedc ("ARM: 8672/1: mm: remove tasklist locking
from update_sections_early()") are equally valid for not
requiring grabbing the task_lock around this check.
Fixes: 08925c2f124f ("ARM: 8464/1: Update all mm structures with section adjustments")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The watchdog has a clock on all our SoCs, but it wasn't always listed.
Add it to the devicetree where it's missing.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The watchdog has an interrupt on all our SoCs, but it wasn't always listed.
Add it to the devicetree where it's missing.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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This patch adds RTC node and fixes the clock properties and nodes
to reflect the real clock tree.
The device nodes for the internal oscillator and osc32k are removed,
as these clocks are now provided by the RTC device. Clock references
are fixed accordingly, too.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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This variable has no users anymore so it can be removed.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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This variable has no users anymore. Remove it and tell the
IOMMU code via its new functions about requested DMA modes.
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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The CSI controller embedded in the A20 can be supported by our new driver.
Let's add it to our DT.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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A64 OLinuXino board from Olimex has three variants with onboard eMMC:
A64-OLinuXino-1Ge16GW, A64-OLinuXino-1Ge4GW and A64-OLinuXino-2Ge8G-IND. In
addition, there are two variants without eMMC. One without eMMC and one with SPI
flash. This suggests the need for separate device tree for the three eMMC
variants.
This patch has been tested on A64-OLinuXino-1Ge16GW with Linux 5.0 from Debain.
Basic benchmarks using Flexible IO Tester show reasonable performance from the
eMMC.
eMMC - Random Write: 21.3MiB/s
eMMC - Sequential Write: 68.2MiB/s
SD Card - Random Write: 1690KiB/s
SD Card - Sequential Write: 11.0MiB/s
Changes:
v3: Separate dts for eMMC variants
v2: Fix descriptions for VCC and VCCQ
Link: https://github.com/armbian/build/commit/174953de1eb09e6aa1ef7075066b573dba625398
Signed-off-by: Martin Ayotte <martinayotte@gmail.com>
[sunil@medhas.org Fix descriptions for VCC and VCCQ, separate dts for eMMC]
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Tested-by: Sunil Mohan Adapa <sunil@medhas.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Unlike the A10 that has 6 timers available, the v3s has only three, with only
three interrupts. Let's change the compatible to reflect that, and add the
missing interrupts.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Unlike the A10 that has 6 timers available, the H3 has only two, with only
two interrupts, just like the A23. Let's change the compatible to reflect
that.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Unlike the A10 that has 6 timers available, the A83t has only two, with
only two interrupts, just like the A23. Let's change the compatible to
reflect that.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Unlike the A10 that has 6 timers available, the A23 and A33 has only two,
with only two interrupts. Let's change the compatible to reflect that.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The timer unit in the A31 has 6 interrupts available. List all of them.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The timer unit in the sun5i die has 6 interrupts available. List all of
them.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The timer unit in the A10 has 6 interrupts available. List all of them.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Tanix TX6 is an Allwinner H6 based TV box, which supports:
- Allwinner H6 Quad-core 64-bit ARM Cortex-A53
- GPU Mali-T720
- 4GiB DDR3 RAM (3GiB useable)
- 100Mbps EMAC via AC200 EPHY
- Cdtech 47822BS Wifi/BT
- 2x USB 2.0 Host and 1x USB 3.0 Host
- HDMI port
- IR receiver
- 64GiB eMMC
- 5V/2A DC power supply
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Add device-tree nodes for i2c0 to i2c2, and also add relevant pinctrl
nodes.
Suggested-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Bhushan Shah <bshah@kde.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The DWMAC binding never supported having the Ethernet PHY node as a
direct child to the controller, nor did it support the "phy" property
as a way to specify which Ethernet PHY to use. What seemed to work
was simply the implementation ignoring the "phy" property and instead
probing all addresses on the MDIO bus and using the first available
one.
The recent switch from "phy" to "phy-handle" breaks the assumptions
of the implementation, and does not match what the binding requires.
The binding requires that if an MDIO bus is described, it shall be
a sub-node with the "snps,dwmac-mdio" compatible string.
Add a device node for the MDIO bus, and move the Ethernet PHY node
under it. Also fix up the #address-cells and #size-cells properties
where needed.
Fixes: de332de26d19 ("ARM: dts: sunxi: Switch from phy to phy-handle")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Beelink GS1 has a DDC I2C bus voltage shifter. This is actually missing
and video is limited to 1024x768 due to missing EDID information.
Add the DDC regulator in the device-tree.
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Beelink GS1 board has a SPDIF out connector, so enable it in
the device-tree and add a simple SPDIF soundcard.
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The Allwinner H6 has a SPDIF controller called OWA (One Wire Audio).
Only one pinmuxing is available so set it as default.
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Lichee zero plus is a core board made by Sipeed, which includes on-board
TF slot or SMT SD NAND, and optional SPI NOR or eMMC, a UART debug
header, a microUSB slot and a gold finger connector for expansion. It
can use either Sochip S3 or Allwinner S3L SoC.
Add the basic device tree for the core board, w/o optional onboard
storage, and with S3 SoC.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The Allwinner S3/S3L/V3 SoCs all share the same die with the V3s SoC,
but with more GPIO wired out of the package.
Add a DTSI file for these SoCs. It just replaces some compatible strings
of the V3s DTSI now. As these SoCs share the same feature set on Linux,
we use the first known chip (V3) as the file's name.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Orange Pi 3 has a DDC_CEC_EN signal connected to PH2, that enables the DDC
I2C bus voltage shifter. Before EDID can be read, we need to pull PH2 high.
This is realized by the ddc-en-gpios property.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The Cubietruck Plus has an HDMI connector tied to the HDMI output of the
SoC.
Enables display output via HDMI on the Cubietruck Plus. The connector
device node is named "hdmi-connector" as there is also a display port
connector, which is tied to the MIPI DSI output of the SoC through a
MIPI-DSI-to-DP bridge. This part is not supported yet.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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The rmap array in the guest memslot is an array of size number of guest
pages, allocated at memslot creation time. Each rmap entry in this array
is used to store information about the guest page to which it
corresponds. For example for a hpt guest it is used to store a lock bit,
rc bits, a present bit and the index of a hpt entry in the guest hpt
which maps this page. For a radix guest which is running nested guests
it is used to store a pointer to a linked list of nested rmap entries
which store the nested guest physical address which maps this guest
address and for which there is a pte in the shadow page table.
As there are currently two uses for the rmap array, and the potential
for this to expand to more in the future, define a type field (being the
top 8 bits of the rmap entry) to be used to define the type of the rmap
entry which is currently present and define two values for this field
for the two current uses of the rmap array.
Since the nested case uses the rmap entry to store a pointer, define
this type as having the two high bits set as is expected for a pointer.
Define the hpt entry type as having bit 56 set (bit 7 IBM bit ordering).
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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Fix the error below triggered by `-Wimplicit-fallthrough`, by tagging
it as an expected fall-through.
arch/powerpc/kvm/book3s_32_mmu.c: In function ‘kvmppc_mmu_book3s_32_xlate_pte’:
arch/powerpc/kvm/book3s_32_mmu.c:241:21: error: this statement may fall through [-Werror=implicit-fallthrough=]
pte->may_write = true;
~~~~~~~~~~~~~~~^~~~~~
arch/powerpc/kvm/book3s_32_mmu.c:242:5: note: here
case 3:
^~~~
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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This merges in fixes for the XIVE interrupt controller which touch both
generic powerpc and PPC KVM code. To avoid merge conflicts, these
commits will go upstream via the powerpc tree as well as the KVM tree.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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Unfortunately, my build fix for when time travel mode isn't
enabled broke time travel mode, because I forgot that we need
to use the timer time after the timer has been marked disabled,
and thus need to leave the time stored instead of zeroing it.
Fix that by splitting the inline into two, so we can call only
the _mode() one in the relevant code path.
Fixes: b482e48d29f1 ("um: fix build without CONFIG_UML_TIME_TRAVEL_SUPPORT")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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Since there is no one using this board, remove it.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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This patch add a VPU device node for rk3328.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Pull RCU and LKMM changes from Paul E. McKenney:
- A few more RCU flavor consolidation cleanups.
- Miscellaneous fixes.
- Updates to RCU's list-traversal macros improving lockdep usability.
- Torture-test updates.
- Forward-progress improvements for no-CBs CPUs: Avoid ignoring
incoming callbacks during grace-period waits.
- Forward-progress improvements for no-CBs CPUs: Use ->cblist
structure to take advantage of others' grace periods.
- Also added a small commit that avoids needlessly inflicting
scheduler-clock ticks on callback-offloaded CPUs.
- Forward-progress improvements for no-CBs CPUs: Reduce contention
on ->nocb_lock guarding ->cblist.
- Forward-progress improvements for no-CBs CPUs: Add ->nocb_bypass
list to further reduce contention on ->nocb_lock guarding ->cblist.
- LKMM updates.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Pull more fallthrough fixes from Gustavo A. R. Silva:
"Fix fall-through warnings on arm and mips for multiple configurations"
* tag 'Wimplicit-fallthrough-5.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
video: fbdev: acornfb: Mark expected switch fall-through
scsi: libsas: sas_discover: Mark expected switch fall-through
MIPS: Octeon: Mark expected switch fall-through
power: supply: ab8500_charger: Mark expected switch fall-through
watchdog: wdt285: Mark expected switch fall-through
mtd: sa1100: Mark expected switch fall-through
drm/sun4i: tcon: Mark expected switch fall-through
drm/sun4i: sun6i_mipi_dsi: Mark expected switch fall-through
ARM: riscpc: Mark expected switch fall-through
dmaengine: fsldma: Mark expected switch fall-through
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Remove the num-lanes property to avoid the driver setting the
link width.
On FSL Layerscape SoCs, the number of lanes assigned to PCIe
controller is not fixed, it is determined by the selected SerDes
protocol in the RCW (Reset Configuration Word).
The PCIe link training is completed automatically through the selected
SerDes protocol - the link width set-up is updated by hardware after
power on reset, so the num-lanes property is not needed for Layerscape
PCIe.
The current num-lanes property was added erroneously, which actually
indicates the maximum lanes the PCIe controller can support up to,
instead of the lanes assigned to the PCIe controller. The link width set
by SerDes protocol will be overridden by the num-lanes property, hence
the subsequent re-training will fail when the assigned lanes do not
match the value in the num-lanes property.
Remove the property to fix the issue
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
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Remove the num-lanes property to avoid the driver setting the
link width.
On FSL Layerscape SoCs, the number of lanes assigned to PCIe
controller is not fixed, it is determined by the selected SerDes
protocol in the RCW (Reset Configuration Word).
The PCIe link training is completed automatically through the selected
SerDes protocol - the link width set-up is updated by hardware after
power on reset, so the num-lanes property is not needed for Layerscape
PCIe.
The current num-lanes property was added erroneously, which actually
indicates the maximum lanes the PCIe controller can support up to,
instead of the lanes assigned to the PCIe controller. The link width set
by SerDes protocol will be overridden by the num-lanes property, hence
the subsequent re-training will fail when the assigned lanes do not
match the value in the num-lanes property.
Remove the property to fix the issue.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
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We still treat devices without a DMA mask as defaulting to 32-bits for
both mask, but a few releases ago we've started warning about such
cases, as they require special cases to work around this sloppyness.
Add a dma_mask field to struct platform_device so that we can initialize
the dma_mask pointer in struct device and initialize both masks to
32-bits by default, replacing similar functionality in m68k and
powerpc. The arch_setup_pdev_archdata hooks is now unused and removed.
Note that the code looks a little odd with the various conditionals
because we have to support platform_device structures that are
statically allocated.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20190816062435.881-7-hch@lst.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Support for the USB regulator of AB8500 was removed in
commit 41a06aa738ad ("regulator: ab8500: Remove USB regulator").
However, the configuration was never removed from the device tree.
It does no longer have any effect, remove it from the device tree.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Some Ux500 devices use the newer AB8505 PMIC instead of AB8500.
Although they are very similar, there are subtle differences
like the number of regulators or the available GPIO pins.
At the moment, ste-dbx5x0.dtsi always configures the AB8500 PMIC.
To support devices with AB8505, it is necessary to split the
AB8500-specific parts into a separate .dtsi file. Boards can then
select the PMIC by including either ste-ab8500.dtsi or ste-ab8505.dtsi.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Enable GCC config CONFIG_SM_GCC_8150 and pinctrl config
CONFIG_PINCTRL_SM8150 to make it possible to boot the SM8150 MTP.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add i2c nodes to mt8183 and mt8183-evb.
Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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While reviewing lockdown patches, I discovered that we still enable
/dev/port (CONFIG_DEVPORT) in skiroot.
/dev/port is used for old x86 style IO accesses. It's set up in
drivers/char/mem.c, and is only created if arch_has_dev_port() returns
true. Per arch/powerpc/include/asm/io.h, on PPC64 with PCI, this is
only true if there's a legacy ISA bridge.
Even if a system has a legacy ISA bridge installed, we have no
business accessing it in skiroot.
Deselect CONFIG_DEVPORT for skiroot.
Signed-off-by: Daniel Axtens <dja@axtens.net>
[mpe: Incorporate emailed comments into the change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190627053008.29315-1-dja@axtens.net
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Simplify some needlessly complicated boolean logic in
eeh_add_to_parent_pe().
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/09259a50308f10aa764695912bc87dc1d1cf654c.1565930772.git.sbobroff@linux.ibm.com
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There are no users of the early-out return value from
eeh_pe_dev_traverse(), so remove it.
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c648070f5b28fe8ca1880b48e64b267959ffd369.1565930772.git.sbobroff@linux.ibm.com
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If a PCI device is removed during eeh_pe_report_edev(), between the
calls to device_lock() and device_unlock(), edev->pdev will change and
cause a crash as the wrong mutex is released.
To correct this, hold the PCI rescan/remove lock while taking a copy
of edev->pdev and performing a get_device() on it. Use this value to
release the mutex, but also pass it through to the device driver's EEH
handlers so that they always see the same device.
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3c590579a0faa24d20c826dcd26c739eb4d454e6.1565930772.git.sbobroff@linux.ibm.com
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Convert existing messages, where appropriate, to use the eeh_edev_*
logging macros.
The only effect should be minor adjustments to the log messages, apart
from:
- A new message in pseries_eeh_probe() "Probing device" to match the
powernv case.
- The "Probing device" message in pnv_eeh_probe() is now generated
slightly later, which will mean that it is no longer emitted for
devices that aren't probed due to the initial checks.
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ce505a0a7a4a5b0367f0f40f8b26e7c0a9cf4cb7.1565930772.git.sbobroff@linux.ibm.com
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Now that struct eeh_dev includes the BDFN of it's PCI device, make use
of it to replace eeh_edev_info() with a set of dev_dbg()-style macros
that only need a struct edev.
With the BDFN available without the struct pci_dev, eeh_pci_name() is
now unnecessary, so remove it.
While only the "info" level function is used here, the others will be
used in followup work.
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/f90ae9a53d762be7b0ccbad79e62b5a1b4f4996e.1565930772.git.sbobroff@linux.ibm.com
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