Commit Graph

38173 Commits

Author SHA1 Message Date
Chen-Yu Tsai
cd23e2e5ce ARM: dts: sun9i: Add pinmux setting for mmc0
mmc0 is only available on port F, and is always used with a 4 bit wide
bus for the onboard micro-sd slot.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:16 +01:00
Chen-Yu Tsai
809ed95f5c ARM: dts: sunxi: Use label to reference pio in sunxi-common-regulators
Use the label to reference the pin controller node, so that we can use
sunxi-common-regulators with sunxi families that don't share the same
address space mappings, such as sun9i.

This patch is mostly space changes due to the reduction of node parents.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:16 +01:00
Chen-Yu Tsai
203c6883b8 ARM: dts: sun9i: Add clock-indices property for bus gate clocks
of_clk_get_parent_name() uses the clock-indices property to resolve
clock phandle arguments in case that the argument index does not
match the clock-output-names sequence.

This is the case on sunxi, where we use the actual bit index as the
argument to the phandle. Add the clock-indices property so that
of_clk_get_parent_name() resolves the names correctly.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:15 +01:00
Chen-Yu Tsai
d2aa6f5400 ARM: dts: sun9i: Add mmc module clock nodes for A80
The mmc module clocks are A80 specific module 0 (storage) type clocks.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:15 +01:00
Maxime Ripard
a6f19d5bed ARM: sun7i: cubietruck: Relicense the device tree under GPLv2/X11
The current GPL only licensing on the DTSI makes it very impractical for other
software components licensed under another license.

In order to make it easier for them to reuse our device trees, relicense our
device trees under a GPL/X11 dual-license.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Alexander Bersenev <bay@hackerdom.ru>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Carlo Caione <carlo@caione.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Olliver Schinagl <oliver@schinagl.nl>
2015-01-21 09:59:15 +01:00
Maxime Ripard
774c5845d7 ARM: sun7i: cubieboard2: Relicense the device tree under GPLv2/X11
The current GPL only licensing on the DTSI makes it very impractical for other
software components licensed under another license.

In order to make it easier for them to reuse our device trees, relicense our
device trees under a GPL/X11 dual-license.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Alexander Bersenev <bay@hackerdom.ru>
Acked-by: Carlo Caione <carlo@caione.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Roman Byshko <rbyshko@gmail.com>
2015-01-21 09:59:14 +01:00
Hans de Goede
b811c283d6 ARM: dts: sun8i: Add dts file for Ippo Q8H v1.2 tablets
The Ippo Q8H v1.2 is almost identical to the v5, still it needs a separate
dtb file since some gpio-s surrounding the wlan/bluetooth are different,
it uses different camera sensors, and different DRAM timings.

Note that atm neither the wlan/bluetooth nor the camera are supported, so
atm their is no difference between the dts files, but because of the different
DRAM timings there are already separate u-boot configs for the 2 different
versions, and the 1.2 config refers to sun8i-a23-ippo-q8h-v1.2.dtb to be
future proof, so we need to provide a sun8i-a23-ippo-q8h-v1.2.dtb file.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:14 +01:00
Hans de Goede
03d6372c84 ARM: dts: sun8i: Enable lradc on a23-ippo-q8h-v5
The a23-ippo-q8h tablets have volume up/down buttons using the lradc. This
has been tested on both a v5 and a v1.2 tablet.

Tested-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:13 +01:00
Hans de Goede
f0a05a0cd4 ARM: dts: sun8i: Add lradc node to sun8i-a23.dtsi
The A23 has the same lradc controller as previous Allwinner SoCs.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:13 +01:00
Chen-Yu Tsai
ce124f7a18 ARM: dts: sun4i: cubieboard: add axp209 regulator nodes
This patch adds the regulator nodes for the axp209 by including
the axp209 dtsi. As the inputs of these regulators are from the
axp209's PS output, which is basically just a mux over the 2
inputs, it is considered to be unregulated. Thus we do not provide
input supply properties for them.

The regulator names and constraints are based on the board
schematics and the SoC datasheet.

DCDC2 is used as the cpu power supply. This patch also references
it from the cpu node.

Also get rid of axp209 properties already set in axp209.dtsi.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:12 +01:00
Chen-Yu Tsai
6a73ff3f6c ARM: dts: sun5i: hsg-h702: add axp209 regulator nodes
This patch adds the regulator nodes for the axp209 by including
the axp209 dtsi. As the inputs of these regulators are from the
axp209's PS output, which is basically just a mux over the 2
inputs, it is considered to be unregulated. Thus we do not provide
input supply properties for them.

The regulator names and constraints are based on the board
schematics and the SoC datasheet.

DCDC2 is used as the cpu power supply. This patch also references
it from the cpu node.

LDO3 powers the USB WiFi module. This patch also references it
from the usb-phy node.

Also get rid of axp209 properties already set in axp209.dtsi.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:12 +01:00
Chen-Yu Tsai
0d4e29343c ARM: dts: sun7i: cubietruck: add axp209 regulator nodes
This patch adds the regulator nodes for the axp209 by including
the axp209 dtsi. As the inputs of these regulators are from the
axp209's PS output, which is basically just a mux over the 2
inputs, it is considered to be unregulated. Thus we do not provide
input supply properties for them.

The regulator names and constraints are based on the board
schematics and the SoC datasheet.

DCDC2 is used as the cpu power supply. This patch also references
it from the cpu node.

Also get rid of axp209 properties already set in axp209.dtsi.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:11 +01:00
Chen-Yu Tsai
ae265c801f ARM: dts: sun7i: cubieboard2: add axp209 regulator nodes
This patch adds the regulator nodes for the axp209 by including
the axp209 dtsi. As the inputs of these regulators are from the
axp209's PS output, which is basically just a mux over the 2
inputs, it is considered to be unregulated. Thus we do not provide
input supply properties for them.

The regulator names and constraints are based on the board
schematics and the SoC datasheet.

DCDC2 is used as the cpu power supply. This patch also references
it from the cpu node.

Also get rid of axp209 properties already set in axp209.dtsi.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:11 +01:00
Chen-Yu Tsai
541ce2ca7e ARM: dts: sun4i: Add cpu thermal zones to dtsi
The core temperature sensor now supports thermal zones. Add a thermal
zone mapping for the cpus with passive cooling (cpufreq throttling).

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:10 +01:00
Chen-Yu Tsai
32a5d2d170 ARM: dts: sun5i: Add cpu thermal zones to dtsi
The core temperature sensor now supports thermal zones. Add a thermal
zone mapping for the cpus with passive cooling (cpufreq throttling).

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:10 +01:00
Chen-Yu Tsai
b6d34248b8 ARM: dts: sun7i: Add cpu thermal zones to dtsi
The core temperature sensor now supports thermal zones. Add a thermal
zone mapping for the cpus with passive cooling (cpufreq throttling).

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:09 +01:00
Chen-Yu Tsai
ddfd0232ed ARM: dts: sunxi: Add dtsi for AXP209 PMIC
The AXP209 PMIC is used with some Allwinner SoCs. This patch adds
a dtsi file listing all the regulator nodes. The regulators are
initialized based on their device node names.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:09 +01:00
Zoltan HERPAI
e721a28716 ARM: dts: pcduino: Enable user LED and button support for pcDuino
The pcDuino board has LEDs connected to PH15/PH16, and back/home/menu
buttons to PH17/18/19 respectively. Enable these via gpio-leds and
gpio-keys. This is shared across the v1 and v2 versions of the board.

Tested on a v2 and verified against the schematics of a v1.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
Acked-by: Hans de Goede <hdegoede@redhat.com>
[Maxime: Added some newlines between the button nodes]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:08 +01:00
Hans de Goede
fd18c7eac0 ARM: dts: sunxi: Add simplefb nodes for de_be0-lcd0, de_be0-lcd0-tve0 pipelines
Add simplefb nodes for "[de_fe0-]de_be0-lcd0" and "[de_fe0-]de_be0-lcd0-tve0"
display pipelines for when u-boot has set up a pipeline to drive a LCD panel /
VGA output rather then the HDMI output.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:59:03 +01:00
Chen-Yu Tsai
7294be5dbf ARM: dts: sun4i: Add cpu clock reference and operating points to dtsi
The cpu core is clocked from the "cpu" clock. Add a reference to it
in the first cpu node. Also add "cpu0" label to the node.

The operating points were taken from the A10 FEX files in the
sunxi-boards repository. All FEX files have the same settings.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:59 +01:00
Chen-Yu Tsai
882facf740 ARM: dts: sun5i: Add cpu clock reference and operating points to dtsi
The cpu core is clocked from the "cpu" clock. Add a reference to it
in the first cpu node. Also add "cpu0" label to the node.

The operating points were taken from the A13 FEX files in the
sunxi-boards repository. All FEX files have the same settings.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:59 +01:00
Chen-Yu Tsai
d96b716191 ARM: dts: sun7i: Add cpu clock reference and operating points to dtsi
The cpu core is clocked from the "cpu" clock. Add a reference to it
in the first cpu node. Also add "cpu0" label to the node.

The operating points were taken from the A20 FEX files in the
sunxi-boards repository. Not all boards have the same settings. The
settings in this patch are the most generic ones.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:58 +01:00
Chen-Yu Tsai
41e7afb1c1 ARM: dts: sunxi: Enable thermal sensor support for RTP on sun[457]i
Now that the resistive touchpanel driver supports thermal sensors,
add the "#thermal-sensor-cells" property as required by the thermal
framework.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:58 +01:00
Maxime Ripard
a6bac9ebf0 ARM: sunxi: DT: Convert the DTs to use the generic interrupt header
The NMI IRQ controller uses the standard flags definition for the IRQ level and
edges.

Use the common header to use defines instead of opaque numbers.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:57 +01:00
Maxime Ripard
19882b84d7 ARM: sunxi: DT: Convert the DTs to use the GIC headers
The GIC requires some extra opaque arguments to set the IRQ type and flags.

Convert the DTs to using the common defines.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:57 +01:00
Maxime Ripard
092a0c3b18 ARM: sunxi: DT: Convert the DTs to use a header for the pinctrl nodes
The pinctrl nodes require some extra opaque arguments for the pull up and drive
strength values.

Introduce a new header file and convert the device trees to replace these
opaque numbers by defines.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:57 +01:00
Maxime Ripard
1f9f6a7873 ARM: sunxi: DT: Convert the DTs to use a header for the DMA arguments
The DMA engine for the A10/A20 and derivatives require an opaque extra
argument.

Add a dt-bindings header, and convert the device trees to it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:56 +01:00
Maxime Ripard
bca12924f0 ARM: sunxi: DT: convert DTs to use common GPIOs includes
Replace the various raw GPIO flags by their definition in the common
dt-bindings header.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:56 +01:00
Maxime Ripard
7145570159 ARM: sunxi: DT: Convert to device tree includes
Prepare the device trees to use the C preprocessor.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:55 +01:00
Hans de Goede
721c259a88 ARM: dts: sun6i: Add dts file for CSQ CS908 board
The CSQ CS908 is an A31s based top-set box, with 1G RAM, 8G NAND,
rtl8188etv usb wifi, 2 USB A receptacles (1 connected through the OTG
controller), ethernet, 3.5 mm jack with a/v out and hdmi out.

Note it has no sdcard slot and therefore can only be fel booted.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:55 +01:00
Hans de Goede
e5bb25cb10 ARM: dts: sun6i: Add sun6i-a31s.dtsi
Add a dtsi file for A31s based boards.

Since the  A31s is the same die as the A31 in a different package, this dtsi
simply includes sun6i-a31.dtsi and then overrides the pinctrl compatible to
reflect the different package, everything else is identical.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:54 +01:00
Hans de Goede
a6a2d64466 ARM: dts: sun7i: Add lradc node
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:54 +01:00
Hans de Goede
ec011af59e ARM: dts: sun5i: Add lradc node
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:53 +01:00
Hans de Goede
b0512e1545 ARM: dts: sun4i: Add lradc node
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:53 +01:00
Hans de Goede
1be83c4f08 ARM: dts: sun6i: Enable ir receiver on the Mele M9
The Mele M9 has an ir receiver, enable it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:52 +01:00
Hans de Goede
4ac367b4ec ARM: dts: sun6i: Add ir node
Add a node for the ir receiver found on the A31.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[Maxime: Added a node label]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:52 +01:00
Hans de Goede
9b5c6e0693 ARM: dts: sun6i: Add ir_clk node
Add an ir_clk sub-node to the prcm node.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:51 +01:00
Alexandru Gagniuc
c9f80dd3b1 ARM: sun4i: dt: cubieboard: Enable SPI0
Only SPI0 is enabled, as the schematic denotes it as the only SPI bus,
while other pins are reserved for different peripherals.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:51 +01:00
Alexandru Gagniuc
ec66d0bb3d ARM: sun4i: dt: Add pin muxing options for SPI
These are based on the available SPI configurations of Cubieboard,
Olimex LIME, and PcDuino. There is no pin group for SPI3, as all the
boards seem to use those pins for EMAC.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:50 +01:00
Chen-Yu Tsai
e139180496 ARM: dts: sun6i: hummingbird: Add ethernet phy reset gpio properties
On the Hummingbird A31 board, the RTL8211E ethernet phy has its reset
line connect to a gpio pin, instead of floating like on other boards.
Add the stmmac properties for describing the reset gpio.

The reset delays were taken from the RTL8211E datasheet.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:49 +01:00
Hans de Goede
dbbcd881ee ARM: dts: sun6i: Add pinmux settings for the ir pins
Add pinmux settings for the ir receive pin of the A31.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:58:49 +01:00
Hans de Goede
8cedd66284 ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline
Testing has shown that on sun4i the display backend engine does not have
deep enough fifo-s causing flickering / tearing in full-hd mode due to
fifo underruns. This can be avoided by letting the display frontend engine
do the dma from memory, and then letting it feed the data directly into
the backend unmodified, as the frontend does have deep enough fifo-s.

Note since u-boot-v2015.01 has been released using the de_be0-lcd0-hdmi
pipeline on sun4i, we need to keep that one around too (unfortunately).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-21 09:56:35 +01:00
Hans de Goede
6ba8bbe8e2 ARM: dts: sun6i: ippo-q8h-v5: Fix serial0 alias
The Ippo q8h has its serial console connected to the r-uart. Adjust the
serial0 alias to match.

This fixes the kernel serial console no longer working since 3.19-rc1, because
8250_dw.c now honors dt aliases, causing the serial console to be ttyS5 rather
then being ttyS0, as it was in 3.18 and before.

Note that adjusting bootargs instead is not an acceptable fix, because
console=ttyS0,115200 is used by a lot of bootscripts, etc. and this should
continue to work.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-01-06 10:52:55 +01:00
Chen-Yu Tsai
4dba4185e3 ARM: dts: sunxi: Fix usb-phy support for sun4i/sun5i
usbphy0 support in the sunxi usb-phy driver has been merged, but the
dtsi's for sun4i/sun5i haven't been updated. This results in the phy
driver failing to load, breaking usb support.

Fixes: 6827a46f59 ('phy: sun4i: add support for USB phy0')
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-12-21 23:50:17 +01:00
Linus Torvalds
60815cf2e0 kernel: Provide READ_ONCE and ASSIGN_ONCE
As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
 ACCESS_ONCE might fail with specific compilers for non-scalar accesses.
 
 Here is a set of patches to tackle that problem.
 
 The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data structure
 is larger than the machine word size memcpy is used and a warning is emitted.
 The next patches fix up several in-tree users of ACCESS_ONCE on non-scalar
 types.
 
 This merge does not yet contain a patch that forces ACCESS_ONCE to work only
 on scalar types. This is targetted for the next merge window as Linux next
 already contains new offenders regarding ACCESS_ONCE vs. non-scalar types.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux

Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger:
 "kernel: Provide READ_ONCE and ASSIGN_ONCE

  As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
  ACCESS_ONCE might fail with specific compilers for non-scalar
  accesses.

  Here is a set of patches to tackle that problem.

  The first patch introduce READ_ONCE and ASSIGN_ONCE.  If the data
  structure is larger than the machine word size memcpy is used and a
  warning is emitted.  The next patches fix up several in-tree users of
  ACCESS_ONCE on non-scalar types.

  This does not yet contain a patch that forces ACCESS_ONCE to work only
  on scalar types.  This is targetted for the next merge window as Linux
  next already contains new offenders regarding ACCESS_ONCE vs.
  non-scalar types"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux:
  s390/kvm: REPLACE barrier fixup with READ_ONCE
  arm/spinlock: Replace ACCESS_ONCE with READ_ONCE
  arm64/spinlock: Replace ACCESS_ONCE READ_ONCE
  mips/gup: Replace ACCESS_ONCE with READ_ONCE
  x86/gup: Replace ACCESS_ONCE with READ_ONCE
  x86/spinlock: Replace ACCESS_ONCE with READ_ONCE
  mm: replace ACCESS_ONCE with READ_ONCE or barriers
  kernel: Provide READ_ONCE and ASSIGN_ONCE
2014-12-20 16:48:59 -08:00
Linus Torvalds
bfc7249cc2 Please consider pulling the clk framework changes toward 3.19. It is
much later than usual due to several last minute bugs that had to be
 addressed. As usual the majority of changes are new drivers and
 modifications to existing drivers. The core recieved many fixes along
 with the groundwork for several large changes coming in the future which
 will better parition clock providers from clock consumers.
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Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux

Pull clk framework updates from Mike Turquette:
 "This is much later than usual due to several last minute bugs that had
  to be addressed.  As usual the majority of changes are new drivers and
  modifications to existing drivers.  The core recieved many fixes along
  with the groundwork for several large changes coming in the future
  which will better parition clock providers from clock consumers"

* tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
  clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
  ARM: OMAP3: clock: fix boot breakage in legacy mode
  ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
  clk: Really fix deadlock with mmap_sem
  clk: mmp: fix sparse non static symbol warning
  clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
  clk: change clk_debugfs_add_file to take a struct clk_hw
  clk: Don't expose __clk_get_accuracy
  clk: Don't try to use a struct clk* after it could have been freed
  clk: Remove unused function __clk_get_prepare_count
  clk: samsung: Fix double add of syscore ops after driver rebind
  clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
  clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
  clk: samsung: remove unnecessary inclusion of header files from clk.h
  clk: samsung: remove unnecessary CONFIG_OF from clk.c
  clk: samsung: Spelling s/bwtween/between/
  clk: rockchip: Add support for the mmc clock phases using the framework
  clk: rockchip: add bindings for the mmc clocks
  clk: rockchip: rk3288 export i2s0_clkout for use in DT
  clk: rockchip: use clock ID for DMC (memory controller) on rk3288
  ...
2014-12-20 16:42:36 -08:00
Rafael J. Wysocki
464ed18ebd PM: Eliminate CONFIG_PM_RUNTIME
Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the former entirely from the tree.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
2014-12-19 22:55:06 +01:00
Linus Torvalds
c0f486fde3 More ACPI and power management updates for 3.19-rc1
- Fix a regression in leds-gpio introduced by a recent commit that
    inadvertently changed the name of one of the properties used by
    the driver (Fabio Estevam).
 
  - Fix a regression in the ACPI backlight driver introduced by a
    recent fix that missed one special case that had to be taken
    into account (Aaron Lu).
 
  - Drop the level of some new kernel messages from the ACPI core
    introduced by a recent commit to KERN_DEBUG which they should
    have used from the start and drop some other unuseful KERN_ERR
    messages printed by ACPI (Rafael J Wysocki).
 
  - Revert an incorrect commit modifying the cpupower tool
    (Prarit Bhargava).
 
  - Fix two regressions introduced by recent commits in the OPP
    library and clean up some existing minor issues in that code
    (Viresh Kumar).
 
  - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout
    the tree (or drop it where that can be done) in order to make
    it possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki,
    Ulf Hansson, Ludovic Desroches).  There will be one more
    "CONFIG_PM_RUNTIME removal" batch after this one, because some
    new uses of it have been introduced during the current merge
    window, but that should be sufficient to finally get rid of it.
 
  - Make the ACPI EC driver more robust against race conditions
    related to GPE handler installation failures (Lv Zheng).
 
  - Prevent the ACPI device PM core code from attempting to
    disable GPEs that it has not enabled which confuses ACPICA
    and makes it report errors unnecessarily (Rafael J Wysocki).
 
  - Add a "force" command line switch to the intel_pstate driver
    to make it possible to override the blacklisting of some
    systems in that driver if needed (Ethan Zhao).
 
  - Improve intel_pstate code documentation and add a MAINTAINERS
    entry for it (Kristen Carlson Accardi).
 
  - Make the ACPI fan driver create cooling device interfaces
    witn names that reflect the IDs of the ACPI device objects
    they are associated with, except for "generic" ACPI fans
    (PNP ID "PNP0C0B").  That's necessary for user space thermal
    management tools to be able to connect the fans with the
    parts of the system they are supposed to be cooling properly.
    From Srinivas Pandruvada.
 
 /
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Merge tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI and power management updates from Rafael Wysocki:
 "These are regression fixes (leds-gpio, ACPI backlight driver,
  operating performance points library, ACPI device enumeration
  messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
  PM), some cleanups in the operating performance points (OPP)
  framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
  minor intel_pstate driver changes, a new MAINTAINERS entry for it and
  an ACPI fan driver change needed for better support of thermal
  management in user space.

  Specifics:

   - Fix a regression in leds-gpio introduced by a recent commit that
     inadvertently changed the name of one of the properties used by the
     driver (Fabio Estevam).

   - Fix a regression in the ACPI backlight driver introduced by a
     recent fix that missed one special case that had to be taken into
     account (Aaron Lu).

   - Drop the level of some new kernel messages from the ACPI core
     introduced by a recent commit to KERN_DEBUG which they should have
     used from the start and drop some other unuseful KERN_ERR messages
     printed by ACPI (Rafael J Wysocki).

   - Revert an incorrect commit modifying the cpupower tool (Prarit
     Bhargava).

   - Fix two regressions introduced by recent commits in the OPP library
     and clean up some existing minor issues in that code (Viresh
     Kumar).

   - Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
     tree (or drop it where that can be done) in order to make it
     possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
     Hansson, Ludovic Desroches).

     There will be one more "CONFIG_PM_RUNTIME removal" batch after this
     one, because some new uses of it have been introduced during the
     current merge window, but that should be sufficient to finally get
     rid of it.

   - Make the ACPI EC driver more robust against race conditions related
     to GPE handler installation failures (Lv Zheng).

   - Prevent the ACPI device PM core code from attempting to disable
     GPEs that it has not enabled which confuses ACPICA and makes it
     report errors unnecessarily (Rafael J Wysocki).

   - Add a "force" command line switch to the intel_pstate driver to
     make it possible to override the blacklisting of some systems in
     that driver if needed (Ethan Zhao).

   - Improve intel_pstate code documentation and add a MAINTAINERS entry
     for it (Kristen Carlson Accardi).

   - Make the ACPI fan driver create cooling device interfaces witn
     names that reflect the IDs of the ACPI device objects they are
     associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").

     That's necessary for user space thermal management tools to be able
     to connect the fans with the parts of the system they are supposed
     to be cooling properly.  From Srinivas Pandruvada"

* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  MAINTAINERS: add entry for intel_pstate
  ACPI / video: update the skip case for acpi_video_device_in_dod()
  power / PM: Eliminate CONFIG_PM_RUNTIME
  NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / EC: Fix unexpected ec_remove_handlers() invocations
  Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
  tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
  PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
  mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
  PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
  ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  ACPI / PM: Do not disable wakeup GPEs that have not been enabled
  ACPI / utils: Drop error messages from acpi_evaluate_reference()
  ...
2014-12-18 20:28:33 -08:00
Linus Torvalds
66dcff86ba 3.19 changes for KVM:
- spring cleaning: removed support for IA64, and for hardware-assisted
 virtualization on the PPC970
 - ARM, PPC, s390 all had only small fixes
 
 For x86:
 - small performance improvements (though only on weird guests)
 - usual round of hardware-compliancy fixes from Nadav
 - APICv fixes
 - XSAVES support for hosts and guests.  XSAVES hosts were broken because
 the (non-KVM) XSAVES patches inadvertently changed the KVM userspace
 ABI whenever XSAVES was enabled; hence, this part is going to stable.
 Guest support is just a matter of exposing the feature and CPUID leaves
 support.
 
 Right now KVM is broken for PPC BookE in your tree (doesn't compile).
 I'll reply to the pull request with a patch, please apply it either
 before the pull request or in the merge commit, in order to preserve
 bisectability somewhat.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM update from Paolo Bonzini:
 "3.19 changes for KVM:

   - spring cleaning: removed support for IA64, and for hardware-
     assisted virtualization on the PPC970

   - ARM, PPC, s390 all had only small fixes

  For x86:
   - small performance improvements (though only on weird guests)
   - usual round of hardware-compliancy fixes from Nadav
   - APICv fixes
   - XSAVES support for hosts and guests.  XSAVES hosts were broken
     because the (non-KVM) XSAVES patches inadvertently changed the KVM
     userspace ABI whenever XSAVES was enabled; hence, this part is
     going to stable.  Guest support is just a matter of exposing the
     feature and CPUID leaves support"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (179 commits)
  KVM: move APIC types to arch/x86/
  KVM: PPC: Book3S: Enable in-kernel XICS emulation by default
  KVM: PPC: Book3S HV: Improve H_CONFER implementation
  KVM: PPC: Book3S HV: Fix endianness of instruction obtained from HEIR register
  KVM: PPC: Book3S HV: Remove code for PPC970 processors
  KVM: PPC: Book3S HV: Tracepoints for KVM HV guest interactions
  KVM: PPC: Book3S HV: Simplify locking around stolen time calculations
  arch: powerpc: kvm: book3s_paired_singles.c: Remove unused function
  arch: powerpc: kvm: book3s_pr.c: Remove unused function
  arch: powerpc: kvm: book3s.c: Remove some unused functions
  arch: powerpc: kvm: book3s_32_mmu.c: Remove unused function
  KVM: PPC: Book3S HV: Check wait conditions before sleeping in kvmppc_vcore_blocked
  KVM: PPC: Book3S HV: ptes are big endian
  KVM: PPC: Book3S HV: Fix inaccuracies in ICP emulation for H_IPI
  KVM: PPC: Book3S HV: Fix KSM memory corruption
  KVM: PPC: Book3S HV: Fix an issue where guest is paused on receiving HMI
  KVM: PPC: Book3S HV: Fix computation of tlbie operand
  KVM: PPC: Book3S HV: Add missing HPTE unlock
  KVM: PPC: BookE: Improve irq inject tracepoint
  arm/arm64: KVM: Require in-kernel vgic for the arch timers
  ...
2014-12-18 16:05:28 -08:00
Christian Borntraeger
488beef144 arm/spinlock: Replace ACCESS_ONCE with READ_ONCE
ACCESS_ONCE does not work reliably on non-scalar types. For
example gcc 4.6 and 4.7 might remove the volatile tag for such
accesses during the SRA (scalar replacement of aggregates) step
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145)

Change the spinlock code to replace ACCESS_ONCE with READ_ONCE.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2014-12-18 09:54:40 +01:00