OSDN Git Service

uclinux-h8/linux.git
9 years agoMerge tag 'arm-soc/for-4.1/devicetree-part-2' of http://github.com/broadcom/stblinux...
Arnd Bergmann [Mon, 16 Mar 2015 14:35:25 +0000 (15:35 +0100)]
Merge tag 'arm-soc/for-4.1/devicetree-part-2' of github.com/broadcom/stblinux into next/dt

Pull "This pull request contains the following changes from Ray for Cygnus SoCs: from Florian Fainelli:

- enable IOMUX, required for pinmux/pinctrl
- enable GPIO, required for the GPIO driver
- enable GPIO hook detection for BCM911360-based phone designs
- enable PCIe controller for the bcm958300k designs

* tag 'arm-soc/for-4.1/devicetree-part-2' of http://github.com/broadcom/stblinux:
  ARM: dts: enable PCIe support for Cygnus
  ARM: dts: cygnus: enable GPIO based hook detection
  ARM: dts: enable GPIO for Broadcom Cygnus
  ARM: dts: enable IOMUX for Broadcom Cygnus

9 years agoARM: dts: Alpine platform devicetree
Tsahee Zidenberg [Thu, 12 Mar 2015 11:53:12 +0000 (13:53 +0200)]
ARM: dts: Alpine platform devicetree

This patch introduces devicetree for the Alpine platform, and
for a development board based on the same platform.

Signed-off-by: Barak Wasserstrom <barak@annapurnalabs.com>
Signed-off-by: Tsahee Zidenberg <tsahee@annapurnalabs.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agoARM: dts: enable PCIe support for Cygnus
Ray Jui [Wed, 11 Mar 2015 18:06:09 +0000 (11:06 -0700)]
ARM: dts: enable PCIe support for Cygnus

Add PCIe device nodes in bcm-cygnus.dtsi but keep them disabled there.
Only enable them for bcm958300k where PCIe interfaces are populated

Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoMerge tag 'renesas-dt2-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Wed, 11 Mar 2015 21:54:57 +0000 (22:54 +0100)]
Merge tag 'renesas-dt2-for-v4.1' of git://git./linux/kernel/git/horms/renesas into next/dt

Pull "Second Round of Renesas ARM Based SoC DT Updates for v4.1" from Simon Horman:

* ape6evm board
  - Configure GPIO keys as wake-up source
  - Enable pull-up for GPIO switches
  - Correct polarity of LEDs
* r8a7791 SoC
  - Correct IPMMU-GP clock to device tree
* r8a7794 SoC
  - Correct ethernet controller PHY IRQ
* lager, koelsch and marzen boards
  - Add DU external pixel clock to DT
* lager board
  - Add HDMI output support to DT
* r8a7791 and r8a7790 SoCs
  - Tidy up SDHI register size in DT
  - Reference DMA channels for SDHI in DT

* tag 'renesas-dt2-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: ape6evm dts: Configure the custom switch as wake-up source
  ARM: shmobile: ape6evm dts: Enable pull-up for GPIO switches
  ARM: shmobile: r8a7791: Fix IPMMU-GP clock to device tree
  ARM: shmobile: r8a7794: alt: Fix ethernet controller PHY IRQ line
  ARM: shmobile: lager: Add DU external pixel clocks to DT
  ARM: shmobile: koelsch: Add DU external pixel clocks to DT
  ARM: shmobile: marzen: Add DU external pixel clock to DT
  ARM: shmobile: ape6evm dts: Fix polarity of LEDs
  ARM: shmobile: lager: Add DU HDMI output support
  ARM: shmobile: r8a7791: Fix HSUSB clock to hp_clk from mp_clk
  ARM: shmobile: r8a7790: Fix HSUSB clock to hp_clk from mp_clk
  ARM: shmobile: r8a7791: tidyup SDHI register size on DTSI
  ARM: shmobile: r8a7790: tidyup SDHI register size on DTSI
  ARM: shmobile: r8a7791: Reference DMA channels in SDHI DT nodes
  ARM: shmobile: r8a7790: Reference DMA channels in SDHI DT nodes

9 years agoMerge tag 'mvebu-dt-4.1' of git://git.infradead.org/linux-mvebu into next/dt
Arnd Bergmann [Wed, 11 Mar 2015 21:53:16 +0000 (22:53 +0100)]
Merge tag 'mvebu-dt-4.1' of git://git.infradead.org/linux-mvebu into next/dt

Pull "mvebu dt changes for v4.1 (part #1)" from Gregory CLEMENT:

- fix SDHCI nodes on Armada 38x
- add Linksys WRT1900AC (Mamba) support (including the Ethernet switch)
- add several fixes and improvement for dove
- enable GPIO fan alarm support for 2Big Network v2
- add several fixes about unit address
- add support for Armada 39x SoC and board

* tag 'mvebu-dt-4.1' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: add Device Tree files for Armada 39x SoC and board
  ARM: mvebu: fix unit address of MPIC nodes
  ARM: mvebu: use stdout-path in all armada-*.dts
  ARM: mvebu: add serial port aliases on Armada 370/375/38x/XP
  ARM: mvebu: remove aliases for Ethernet devices on Armada 370/375/38x/XP
  ARM: mvebu: add UART labels to Armada 375
  ARM: mvebu: add missing UART labels on Armada 38x
  ARM: mvebu: fix usb@ unit address on Armada 38x to match register address
  ARM: mvebu: a385-db-ap: Enable the NAND
  ARM: ARMADA XP: WRT1900AC: Add support for the Ethernet switch
  ARM: Kirkwood: enable GPIO fan alarm support for 2Big Network v2
  ARM: mvebu: Fix MPIC unit address
  ARM: dts: dove: Add some more common pinctrl settings
  ARM: dts: dove: Add node labels for PCIe ports 0 and 1
  ARM: dts: dove: Always include gpio and interrupt-controller headers
  ARM: dts: dove: Fix uart[23] reg property
  ARM: mvebu: add Linksys WRT1900AC (Mamba) support
  ARM: mvebu: Add Device Tree description of SDHCI for Armada 388 RD
  ARM: mvebu: Update the SDHCI node on Armada 38x
  ARM: mvebu: Use macros for interrupt flags on Armada 38x sdhci node

9 years agoMerge tag 'arm-soc/for-4.1/devicetree' of http://github.com/broadcom/stblinux into...
Arnd Bergmann [Wed, 11 Mar 2015 21:51:11 +0000 (22:51 +0100)]
Merge tag 'arm-soc/for-4.1/devicetree' of github.com/broadcom/stblinux into next/dt

Pull "Broadcom Device Tree changes for 4.1 #1" from Florian Fainelli:

This pull request contains the following Broadcom SoCs Device Tree changes:

- Jonathan adds support for the Broadcom Cygnus BCM958305K board

- Rafal adds support for Netgear R8000 and fixes the default for power LEDs
  on Netgear R6250

* tag 'arm-soc/for-4.1/devicetree' of http://github.com/broadcom/stblinux:
  ARM: BCM5301X: Fix default state of power LEDs on Netgear R6250
  ARM: BCM5301X: Add DT for Netgear R8000
  ARM: dts: Enable Broadcom Cygnus BCM958305K

9 years agoMerge tag 'at91-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux...
Arnd Bergmann [Wed, 11 Mar 2015 21:48:55 +0000 (22:48 +0100)]
Merge tag 'at91-dt' of git://git./linux/kernel/git/nferre/linux-at91 into next/dt

Pull "First batch of DT changes for 4.1" into next/dt:

- at91sam9x5 & EK board: ISI and camera sensors
- at91sam9n12 & EK board: USB gadget nodes
- sama5d3: typos, gpio-keys on Xplained board
- sama5d4: i2c, leds, audio, ISI, crypto, pwm missing nodes
- new sama5d4 xplained board

* tag 'at91-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: (31 commits)
  ARM: at91/dt: sama5d4: add ISI dt support
  ARM: at91/dt: sama5d4: add pwm0 device node
  ARM: at91/dt: sama5d4: add aes, sha and tdes nodes
  ARM: at91: dt: sama5d4ek: enable audio
  ARM: at91: dt: sama5d4ek: add and enable wm8904
  ARM: at91: dt: sama5d4ek: enable ssc0
  ARM: at91: dt: sama5d4: add ssc nodes
  ARM: at91/dt: sama5d4 xplained: add i2c0
  ARM: at91/dt: sama5d4: add dts for sama5d4 xplained board
  ARM: at91/dt: sama5d4: add #{address, size}_cells properties for macb0
  ARM: at91/dt: sama5d4ek: add leds in DT node
  ARM: at91/dt: add i2c1 declaration to sama5d4
  ARM: at91/dt: gpio-keys: address-cells and size-cells properties are not needed
  ARM: at91/dt: at91-sama5d3_xplained: add gpio-key pinctrl property
  ARM: at91/dt/trivial: correct file headers for SAMA5D3 SoC peripherals
  ARM: at91/dt: at91sam9n12ek: enable udp
  ARM: at91/dt: at91sam9n12: add udp device node
  ARM: at91: at91sam9g25ek/dts: enable ISI and ov2640
  ARM: at91: at91sam9x5ek/dts: add ov2640 support
  ARM: at91: at91sam9x5/dts: add ISI dt support, include isi node, pinctrls
  ...

9 years agoARM: dts: cygnus: enable GPIO based hook detection
Ray Jui [Mon, 9 Mar 2015 20:45:02 +0000 (13:45 -0700)]
ARM: dts: cygnus: enable GPIO based hook detection

This enables GPIO based phone hook detection for Broadcom BCM911360
phone factor board (bcm911360_entphn)

Signed-off-by: Ray Jui <rjui@broadcom.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoARM: dts: enable GPIO for Broadcom Cygnus
Ray Jui [Mon, 9 Mar 2015 20:45:01 +0000 (13:45 -0700)]
ARM: dts: enable GPIO for Broadcom Cygnus

This enables all 3 GPIO controllers including the ASIU GPIO, the
chipcommonG GPIO, and the ALWAYS-ON GPIO, for Broadcom Cygnus SoC

Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Dmitry Torokhov <dtor@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoARM: dts: enable IOMUX for Broadcom Cygnus
Ray Jui [Mon, 9 Mar 2015 20:44:58 +0000 (13:44 -0700)]
ARM: dts: enable IOMUX for Broadcom Cygnus

This enables the IOMUX support for Broadcom Cygnus SoC

Signed-off-by: Ray Jui <rjui@broadcom.com>
Tested-by: Dmitry Torokhov <dtor@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoARM: BCM5301X: Fix default state of power LEDs on Netgear R6250
Rafał Miłecki [Fri, 20 Feb 2015 10:22:05 +0000 (11:22 +0100)]
ARM: BCM5301X: Fix default state of power LEDs on Netgear R6250

We want green LED to be enabled by default.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoARM: BCM5301X: Add DT for Netgear R8000
Rafał Miłecki [Wed, 18 Feb 2015 11:25:42 +0000 (12:25 +0100)]
ARM: BCM5301X: Add DT for Netgear R8000

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Reported-by: Ian Kent <raven@themaw.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoARM: shmobile: ape6evm dts: Configure the custom switch as wake-up source
Geert Uytterhoeven [Fri, 27 Feb 2015 17:48:39 +0000 (18:48 +0100)]
ARM: shmobile: ape6evm dts: Configure the custom switch as wake-up source

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: shmobile: ape6evm dts: Enable pull-up for GPIO switches
Geert Uytterhoeven [Fri, 27 Feb 2015 17:48:38 +0000 (18:48 +0100)]
ARM: shmobile: ape6evm dts: Enable pull-up for GPIO switches

The switches on r8a73a4/ape6evm do not have pull-up registers.  The
schematics say: "Need to use APE6 internal PullUp", hence enable pull-up
using pinctrl.

Without this, the switches don't really work, as the GPIO inputs are
more likely to pick up ghost signals through capacitive coupling than
actual keypresses.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agodevicetree: Add TI-NSPIRE USB OTG support to device tree
Daniel Tang [Mon, 9 Feb 2015 08:41:57 +0000 (19:41 +1100)]
devicetree: Add TI-NSPIRE USB OTG support to device tree

Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agoMerge tag 'for-v4.0-rc/meson-dts' of https://github.com/carlocaione/linux-meson into...
Arnd Bergmann [Wed, 4 Mar 2015 22:02:49 +0000 (23:02 +0100)]
Merge tag 'for-v4.0-rc/meson-dts' of https://github.com/carlocaione/linux-meson into next/dt

Pull "meson DTS changes" from Carlo Caione:

- New DTS for MINIX NEO-X8
- Add DTS support for SPIFC, Ethernet controller and pinctrl

* tag 'for-v4.0-rc/meson-dts' of https://github.com/carlocaione/linux-meson:
  ARM: dts: meson: add DTS file for MINIX NEO-X8
  ARM: dts: meson8: add pinctrl node
  ARM: dts: meson: enable Ethernet controller
  ARM: dts: meson: add node for SPIFC

9 years agoMerge tag 'renesas-dt-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Wed, 4 Mar 2015 21:59:23 +0000 (22:59 +0100)]
Merge tag 'renesas-dt-for-v4.1' of git://git./linux/kernel/git/horms/renesas into next/dt

Pull "Renesas ARM Based SoC DT Updates for v4.1" from Simon Horman:

* Increase hardware coverage of DT for various SoCs
* Add PFC information for emev2 SoC
* Remap entire APMU region for r8a7791 and r8a7790 SoCs
* Declare the full 512 MiB of RAM for kzm9g board
* Add selectable sources to DIV6 clocks to sh73a0 SoC
* Add missing INTCA0 clock for irqpin module on sh73a0 SoC
* Set control-parent for all irqpin node on sh73a0 SoC

* tag 'renesas-dt-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (32 commits)
  ARM: shmobile: r8a7794: add SDHI DT support
  ARM: shmobile: r8a7790: add ADSP clocks
  ARM: shmobile: r8a7791: add ADSP clocks
  ARM: shmobile: henninger: add CAN0 DT support
  ARM: shmobile: r8a7791: add CAN DT support
  ARM: shmobile: r8a7791: add CAN clocks
  ARM: shmobile: r8a7790: add CAN DT support
  ARM: shmobile: r8a7790: add CAN clocks
  ARM: shmobile: emev2-kzm9d dts: Add PFC information for uart1
  ARM: shmobile: emev2 dtsi: Add PFC information
  ARM: shmobile: r8a7791: smp: remap whole apmu region
  ARM: shmobile: r8a7790: smp: remap whole apmu region
  ARM: shmobile: koelsch: Add DU HDMI output support
  ARM: shmobile: r8a7791: Correct SDHI clock labels and output-names
  ARM: shmobile: r8a7794: Correct SDHI clock base address, labels and output-names
  ARM: shmobile: r8a7794: alt: Enable ethernet controller
  ARM: shmobile: r8a7794: Add ethernet controller to device tree
  ARM: shmobile: r8a7794: Add IPMMU DT nodes
  ARM: shmobile: r8a7791: Add IPMMU DT nodes
  ARM: shmobile: r8a7790: Add IPMMU DT nodes
  ...

9 years agoARM: at91/dt: sama5d4: add ISI dt support
Josh Wu [Fri, 23 Jan 2015 08:38:03 +0000 (16:38 +0800)]
ARM: at91/dt: sama5d4: add ISI dt support

Add ISI dt node and pinctrl settings in sama5d4.dtsi.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
[nicolas.ferre@atmel.com: sort nodes in order. remove useless comments]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sama5d4: add pwm0 device node
Bo Shen [Fri, 9 Jan 2015 16:11:05 +0000 (17:11 +0100)]
ARM: at91/dt: sama5d4: add pwm0 device node

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sama5d4: add aes, sha and tdes nodes
Leilei Zhao [Fri, 9 Jan 2015 15:58:57 +0000 (16:58 +0100)]
ARM: at91/dt: sama5d4: add aes, sha and tdes nodes

Signed-off-by: Leilei Zhao <leilei.zhao@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dt: sama5d4ek: enable audio
Bo Shen [Mon, 2 Feb 2015 06:51:47 +0000 (14:51 +0800)]
ARM: at91: dt: sama5d4ek: enable audio

Enable audio support for sama5d4ek board.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dt: sama5d4ek: add and enable wm8904
Bo Shen [Mon, 2 Feb 2015 06:51:46 +0000 (14:51 +0800)]
ARM: at91: dt: sama5d4ek: add and enable wm8904

Add wm8904 codec node and enable it.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dt: sama5d4ek: enable ssc0
Bo Shen [Mon, 2 Feb 2015 06:51:45 +0000 (14:51 +0800)]
ARM: at91: dt: sama5d4ek: enable ssc0

Enable SSC0 node, which will be used for audio.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: dt: sama5d4: add ssc nodes
Bo Shen [Mon, 2 Feb 2015 06:51:44 +0000 (14:51 +0800)]
ARM: at91: dt: sama5d4: add ssc nodes

Add SSC 0 and 1 nodes.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sama5d4 xplained: add i2c0
Nicolas Ferre [Thu, 26 Feb 2015 15:05:14 +0000 (16:05 +0100)]
ARM: at91/dt: sama5d4 xplained: add i2c0

Add i2c0 aka twi0 on sama5d4 xplained board.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sama5d4: add dts for sama5d4 xplained board
Josh Wu [Wed, 4 Mar 2015 02:51:48 +0000 (10:51 +0800)]
ARM: at91/dt: sama5d4: add dts for sama5d4 xplained board

Add at91 sama5d4 xplained board support.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sama5d4: add #{address, size}_cells properties for macb0
Josh Wu [Wed, 4 Mar 2015 02:51:47 +0000 (10:51 +0800)]
ARM: at91/dt: sama5d4: add #{address, size}_cells properties for macb0

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>
9 years agoARM: at91/dt: sama5d4ek: add leds in DT node
Josh Wu [Mon, 9 Feb 2015 09:40:20 +0000 (17:40 +0800)]
ARM: at91/dt: sama5d4ek: add leds in DT node

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>
9 years agoARM: at91/dt: add i2c1 declaration to sama5d4
Philip Attfield [Fri, 6 Feb 2015 13:52:56 +0000 (14:52 +0100)]
ARM: at91/dt: add i2c1 declaration to sama5d4

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>
9 years agoARM: at91/dt: gpio-keys: address-cells and size-cells properties are not needed
Nicolas Ferre [Wed, 4 Mar 2015 17:31:03 +0000 (18:31 +0100)]
ARM: at91/dt: gpio-keys: address-cells and size-cells properties are not needed

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>
9 years agoARM: at91/dt: at91-sama5d3_xplained: add gpio-key pinctrl property
Wenyou Yang [Wed, 13 Aug 2014 04:58:21 +0000 (12:58 +0800)]
ARM: at91/dt: at91-sama5d3_xplained: add gpio-key pinctrl property

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt/trivial: correct file headers for SAMA5D3 SoC peripherals
Nicolas Ferre [Wed, 4 Mar 2015 16:56:03 +0000 (17:56 +0100)]
ARM: at91/dt/trivial: correct file headers for SAMA5D3 SoC peripherals

File name had at91 prefix, which is not the case anymore for SAMA5D3.
AT91SAM9x5 was mentioned instead of SAMA5D3 SoC.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: at91sam9n12ek: enable udp
Bo Shen [Tue, 10 Feb 2015 01:55:35 +0000 (09:55 +0800)]
ARM: at91/dt: at91sam9n12ek: enable udp

Enable usb device port on at91sam9n12ek board.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: at91sam9n12: add udp device node
Bo Shen [Tue, 10 Feb 2015 01:55:34 +0000 (09:55 +0800)]
ARM: at91/dt: at91sam9n12: add udp device node

Add usb device node for at91sam9n12.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: at91sam9g25ek/dts: enable ISI and ov2640
Josh Wu [Thu, 12 Feb 2015 08:06:25 +0000 (16:06 +0800)]
ARM: at91: at91sam9g25ek/dts: enable ISI and ov2640

Enable ISI and ov2640 for at91sam9g25ek board.
Meantime, we need to disable the mmc1 and spi0 as they have pin conflict
with ISI.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: at91sam9x5ek/dts: add ov2640 support
Josh Wu [Thu, 12 Feb 2015 08:06:24 +0000 (16:06 +0800)]
ARM: at91: at91sam9x5ek/dts: add ov2640 support

Add the camera sensor ov2640 dt support. And connect sensor to isi node
as well.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: at91sam9x5/dts: add ISI dt support, include isi node, pinctrls
Josh Wu [Thu, 12 Feb 2015 08:06:23 +0000 (16:06 +0800)]
ARM: at91: at91sam9x5/dts: add ISI dt support, include isi node, pinctrls

Add a new file: at91sam9x5_isi.dtsi, which includes ISI node and
pinctrls.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: mvebu: add Device Tree files for Armada 39x SoC and board
Thomas Petazzoni [Tue, 3 Mar 2015 14:41:12 +0000 (15:41 +0100)]
ARM: mvebu: add Device Tree files for Armada 39x SoC and board

This commit adds the Device Tree files for the Armada 39x family of
processors, as well as one Armada 398 Development Board.

Like for other Marvell EBU families, a common armada-39x.dtsi contains
the description of the common features of all Armada 39x SoCs, while
armada-390.dtsi and armada-398.dtsi respectively describe the
specificities of those SoCs.

Finally, an armada-398-db.dts file is added to describe the Armada 398
Development Board itself.

So far, the following features are supported:

 * SMP: dual Cortex-A9
 * Basic ARM IPs: SCU, timer, GIC, L2 cache
 * Basic Marvell IPs: pin-muxing, clocks, system controller, MBus
   controller, MPIC interrupt controller, timer, CPU reset for SMP,
   PMSU.
 * I2C
 * SPI
 * SDHCI
 * XOR
 * NAND
 * UART
 * PCIe

Additional features will be supported in the future.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoMerge tag 'at91-fixes' into at91-4.1-dt
Nicolas Ferre [Wed, 4 Mar 2015 14:17:23 +0000 (15:17 +0100)]
Merge tag 'at91-fixes' into at91-4.1-dt

First fixes batch for AT91 on 4.0:
- PM slowclock fixes for DDR and timeouts
- fix some DT entries
- little defconfig updates
- the removal of a harmful watchdog option + its detailed documentation

9 years agoARM: mvebu: fix unit address of MPIC nodes
Thomas Petazzoni [Tue, 3 Mar 2015 14:41:03 +0000 (15:41 +0100)]
ARM: mvebu: fix unit address of MPIC nodes

The Device Tree nodes describing the MPIC nodes on Armada 370, 375,
38x and XP had a unit address that did not match the first reg
property, as suggested by the ePAPR. This commit fixes that.

[gregory.clement@free-electrons.com: removed the armada-38x part, as it
was already applied by a previous patch]

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: use stdout-path in all armada-*.dts
Thomas Petazzoni [Tue, 3 Mar 2015 14:41:02 +0000 (15:41 +0100)]
ARM: mvebu: use stdout-path in all armada-*.dts

This commit adds the stdout-path property in /chosen for all Armada
boards that were not yet carrying this property, and gets rid of
/chosen/bootargs which becomes unneeded: earlyprintk should not be
used by default, and the console= parameter is replaced by the
/chosen/stdout-path property.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: add serial port aliases on Armada 370/375/38x/XP
Thomas Petazzoni [Tue, 3 Mar 2015 14:41:01 +0000 (15:41 +0100)]
ARM: mvebu: add serial port aliases on Armada 370/375/38x/XP

This commit adds 'serialX' aliases for the various serial ports on
Armada 370, 375, 38x and XP platforms. It will allow the usage of the
stdout-path property.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: remove aliases for Ethernet devices on Armada 370/375/38x/XP
Thomas Petazzoni [Tue, 3 Mar 2015 14:41:00 +0000 (15:41 +0100)]
ARM: mvebu: remove aliases for Ethernet devices on Armada 370/375/38x/XP

Having aliases for Ethernet devices is useless, since the networking
subsystem unfortunately doesn't care about aliases to name network
interfaces.

Note that the 'aliases' nodes in armada-370-xp.dtsi and armada-xp.dtsi
become empty, but that we keep it as is since a followup patch will
re-add some aliases to it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: add UART labels to Armada 375
Thomas Petazzoni [Tue, 3 Mar 2015 14:40:59 +0000 (15:40 +0100)]
ARM: mvebu: add UART labels to Armada 375

This commit adds the standard uart0 and uart1 DT labels to the Device
Tree description of the Marvell Armada 375 SoC.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: add missing UART labels on Armada 38x
Thomas Petazzoni [Tue, 3 Mar 2015 14:40:58 +0000 (15:40 +0100)]
ARM: mvebu: add missing UART labels on Armada 38x

The Armada 38x had a label for UART0, but not UART1. This commit fixes
that.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: fix usb@ unit address on Armada 38x to match register address
Thomas Petazzoni [Tue, 3 Mar 2015 14:40:57 +0000 (15:40 +0100)]
ARM: mvebu: fix usb@ unit address on Armada 38x to match register address

On Marvell Armada 38x, the USB2 controller registers are at 0x58000,
so the corresponding Device Tree node should have a unit address of
58000, and not 50000. We were using 50000 due to an incorrect
copy/pastebin of Armada 370/XP code.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: a385-db-ap: Enable the NAND
Maxime Ripard [Tue, 3 Mar 2015 10:16:45 +0000 (11:16 +0100)]
ARM: mvebu: a385-db-ap: Enable the NAND

The Armada 385 Access Point Development Board has a 1GB NAND SLC chip from
Micron as its main storage. Enable it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: ARMADA XP: WRT1900AC: Add support for the Ethernet switch
Andrew Lunn [Sat, 28 Feb 2015 20:20:48 +0000 (21:20 +0100)]
ARM: ARMADA XP: WRT1900AC: Add support for the Ethernet switch

Add a DSA section to the DT blob representing the Ethernet switch.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: Kirkwood: enable GPIO fan alarm support for 2Big Network v2
Simon Guinot [Wed, 25 Feb 2015 18:00:19 +0000 (19:00 +0100)]
ARM: Kirkwood: enable GPIO fan alarm support for 2Big Network v2

On the LaCie 2Big Network v2 (net2big_v2) board, the fan alarm is not
wired to the I2C fan controller but to a separe GPIO. This GPIO can be
controlled by using the gpio-fan driver.

This patch adds the gpio-fan alarm description in the net2big_v2 DTS.

Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: mvebu: Fix MPIC unit address
Maxime Ripard [Thu, 26 Feb 2015 09:51:17 +0000 (10:51 +0100)]
ARM: mvebu: Fix MPIC unit address

The unit-address is supposed to be equal the first reg address, which is not
the case for the MPIC, that uses the mbus-controller one. Fix this.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: dts: dove: Add some more common pinctrl settings
Sebastian Hesselbarth [Tue, 17 Feb 2015 18:52:07 +0000 (19:52 +0100)]
ARM: dts: dove: Add some more common pinctrl settings

This add common pinctrl settings for pcie[01]_clkreq, spi1, i2c[23],
and internal i2c mux. These settings have either one or two options
only, so put them into the SoC dtsi instead of repeating them on
board level.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
9 years agoARM: at91/dt: keep watchdog running in idle mode
Michel Marti [Tue, 23 Dec 2014 11:41:43 +0000 (12:41 +0100)]
ARM: at91/dt: keep watchdog running in idle mode

Since turning on idle-halt in commit fe46aa679f12 (ARM: at91/dt: add
sam9 watchdog default options to SoCs), SoCs compatible with at91sam9260-wdt
no longer reboot if the watchdog times out while the CPU is in idle state.
Removing the 'idle-halt' flag that was set by default fixes this.

Signed-off-by: Michel Marti <mma@objectxp.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
[nicolas.ferre@atmel.com: rework the commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agodts: Documentation: AT91 Watchdog, explain what atmel,idle-halt property really do
Sylvain Rochet [Sun, 18 Jan 2015 13:26:50 +0000 (14:26 +0100)]
dts: Documentation: AT91 Watchdog, explain what atmel,idle-halt property really do

atmel,idle-halt property should be used with care, it actually makes the
watchdog not counting when the CPU is in idle state, therefore the
watchdog reset time depends on mean CPU usage and will not reset at all
of the CPU stop working while it is in idle state, which is probably not
what you want.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/defconfig: add at91rm9200 ethernet support
Alexandre Belloni [Mon, 5 Jan 2015 11:53:02 +0000 (12:53 +0100)]
ARM: at91/defconfig: add at91rm9200 ethernet support

There is now only one defconfig for the at91rm9200 and at91sam9. Add ethernet
support for the at91rm9200.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/defconfig: remove CONFIG_SYSFS_DEPRECATED
Anthony Harivel [Thu, 5 Feb 2015 21:59:36 +0000 (22:59 +0100)]
ARM: at91/defconfig: remove CONFIG_SYSFS_DEPRECATED

Recent distributions and userspace tools after 2009/2010 depend on
the existence of /sys/class/block/, and will not work with this option enabled.

Signed-off-by: Anthony Harivel <anthony.harivel@emtrion.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: at91sam9260: fix usart pinctrl
Jonas Andersson [Fri, 30 Jan 2015 11:25:10 +0000 (12:25 +0100)]
ARM: at91/dt: at91sam9260: fix usart pinctrl

Corrected pins used by usart3.

Signed-off-by: Jonas Andersson <jonas@microbit.se>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: sama5d4: add missing alias for i2c0
Nicolas Ferre [Fri, 6 Feb 2015 14:22:12 +0000 (15:22 +0100)]
ARM: at91/dt: sama5d4: add missing alias for i2c0

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91/dt: at91sam9263: Fixup sram1 device tree node
Alexander Stein [Wed, 25 Feb 2015 08:35:04 +0000 (09:35 +0100)]
ARM: at91/dt: at91sam9263: Fixup sram1 device tree node

Commit ff04660e48b20 ("ARM: at91/dt: add SRAM nodes") used the same base
address for sram0 and sram1 leading to the following warning:
WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x50/0x70()
sysfs: cannot create duplicate filename '/devices/platform/300000.sram'
Fix the base address for sram1.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: pm: fix SRAM allocation
Alexandre Belloni [Tue, 3 Mar 2015 07:38:07 +0000 (08:38 +0100)]
ARM: at91: pm: fix SRAM allocation

On some platforms, there are multiple SRAM nodes defined in the device tree but
some of them are disabled, leading to allocation failure. Try to find the first
enabled SRAM node and allocate from it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoARM: at91: pm: fix at91rm9200 standby
Alexandre Belloni [Tue, 3 Mar 2015 18:58:22 +0000 (19:58 +0100)]
ARM: at91: pm: fix at91rm9200 standby

at91rm9200 standby and suspend to ram has been broken since
00482a4078f4. It is wrongly using AT91_BASE_SYS which is a physical address
and actually doesn't correspond to any register on at91rm9200.

Use the correct at91_ramc_base[0] instead.

Fixes: 00482a4078f4 (ARM: at91: implement the standby function for pm/cpuidle)

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agopm: at91: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.
Peter Rosin [Thu, 5 Feb 2015 06:02:09 +0000 (14:02 +0800)]
pm: at91: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.

The DDRSDR controller fails miserably to put LPDDR1 memories in
self-refresh. Force the controller to think it has DDR2 memories
during the self-refresh period, as the DDR2 self-refresh spec is
equivalent to LPDDR1, and is correctly implemented in the
controller.

Assume that the second controller has the same fault, but that is
untested.

Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agopm: at91: pm_slowclock: fix suspend/resume hang up in timeouts
Sylvain Rochet [Thu, 5 Feb 2015 06:00:37 +0000 (14:00 +0800)]
pm: at91: pm_slowclock: fix suspend/resume hang up in timeouts

Removed timeout on XTAL, PLL lock and Master Clock Ready, hang if
something went wrong instead of continuing in unknown condition. There
is not much we can do if a PLL lock never ends, we are running in SRAM
and we will not be able to connect back the sdram or ddram in order to
be able to fire up a message or just panic.

As a bonus, not decounting the timeout register in slow clock mode
reduce cumulated suspend time and resume time from ~17ms to ~15ms.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Wenyou.Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
9 years agoLinux 4.0-rc2 v4.0-rc2
Linus Torvalds [Tue, 3 Mar 2015 17:04:59 +0000 (09:04 -0800)]
Linux 4.0-rc2

9 years agodrm/i915: Fix modeset state confusion in the load detect code
Daniel Vetter [Tue, 3 Mar 2015 16:31:21 +0000 (17:31 +0100)]
drm/i915: Fix modeset state confusion in the load detect code

This is a tricky story of the new atomic state handling and the legacy
code fighting over each another. The bug at hand is an underrun of the
framebuffer reference with subsequent hilarity caused by the load
detect code. Which is peculiar since the the exact same code works
fine as the implementation of the legacy setcrtc ioctl.

Let's look at the ingredients:

- Currently our code is a crazy mix of legacy modeset interfaces to
  set the parameters and half-baked atomic state tracking underneath.
  While this transition is going we're using the transitional plane
  helpers to update the atomic side (drm_plane_helper_disable/update
  and friends), i.e. plane->state->fb. Since the state structure owns
  the fb those functions take care of that themselves.

  The legacy state (specifically crtc->primary->fb) is still managed
  by the old code (and mostly by the drm core), with the fb reference
  counting done by callers (core drm for the ioctl or the i915 load
  detect code). The relevant commit is

  commit ea2c67bb4affa84080c616920f3899f123786e56
  Author: Matt Roper <matthew.d.roper@intel.com>
  Date:   Tue Dec 23 10:41:52 2014 -0800

      drm/i915: Move to atomic plane helpers (v9)

- drm_plane_helper_disable has special code to handle multiple calls
  in a row - it checks plane->crtc == NULL and bails out. This is to
  match the proper atomic implementation which needs the crtc to get
  at the implied locking context atomic updates always need. See

  commit acf24a395c5a9290189b080383564437101d411c
  Author: Daniel Vetter <daniel.vetter@ffwll.ch>
  Date:   Tue Jul 29 15:33:05 2014 +0200

      drm/plane-helper: transitional atomic plane helpers

- The universal plane code split out the implicit primary plane from
  the CRTC into it's own full-blown drm_plane object. As part of that
  the setcrtc ioctl (which updated both the crtc mode and primary
  plane) learned to set crtc->primary->crtc on modeset to make sure
  the plane->crtc assignments statate up to date in

  commit e13161af80c185ecd8dc4641d0f5df58f9e3e0af
  Author: Matt Roper <matthew.d.roper@intel.com>
  Date:   Tue Apr 1 15:22:38 2014 -0700

      drm: Add drm_crtc_init_with_planes() (v2)

  Unfortunately we've forgotten to update the load detect code. Which
  wasn't a problem since the load detect modeset is temporary and
  always undone before we drop the locks.

- Finally there is a organically grown history (i.e. don't ask) around
  who sets the legacy plane->fb for the various driver entry points.
  Originally updating that was the drivers duty, but for almost all
  places we've moved that (plus updating the refcounts) into the core.
  Again the exception is the load detect code.

Taking all together the following happens:
- The load detect code doesn't set crtc->primary->crtc. This is only
  really an issue on crtcs never before used or when userspace
  explicitly disabled the primary plane.

- The plane helper glue code short-circuits because of that and leaves
  a non-NULL fb behind in plane->state->fb and plane->fb. The state
  fb isn't a real problem (it's properly refcounted on its own), it's
  just the canary.

- Load detect code drops the reference for that fb, but doesn't set
  plane->fb = NULL. This is ok since it's still living in that old
  world where drivers had to clear the pointer but the core/callers
  handled the refcounting.

- On the next modeset the drm core notices plane->fb and takes care of
  refcounting it properly by doing another unref. This drops the
  refcount to zero, leaving state->plane now pointing at freed memory.

- intel_plane_duplicate_state still assume it owns a reference to that
  very state->fb and bad things start to happen.

Fix this all by applying the same duct-tape as for the legacy setcrtc
ioctl code and set crtc->primary->crtc properly.

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Paulo Zanoni <przanoni@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoARM: dts: Enable Broadcom Cygnus BCM958305K
Jonathan Richardson [Mon, 2 Mar 2015 22:41:10 +0000 (14:41 -0800)]
ARM: dts: Enable Broadcom Cygnus BCM958305K

DT file to enable the Wireless Audio reference design based on the
BCM58305.

Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
9 years agoMerge tag 'gpio-v4.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux...
Linus Torvalds [Mon, 2 Mar 2015 22:13:39 +0000 (14:13 -0800)]
Merge tag 'gpio-v4.0-2' of git://git./linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Two GPIO fixes:

   - Fix a translation problem in of_get_named_gpiod_flags()

   - Fix a long standing container_of() mistake in the TPS65912 driver"

* tag 'gpio-v4.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: tps65912: fix wrong container_of arguments
  gpiolib: of: allow of_gpiochip_find_and_xlate to find more than one chip per node

9 years agoMerge branch 'fixes-for-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 2 Mar 2015 22:08:10 +0000 (14:08 -0800)]
Merge branch 'fixes-for-4.0-rc2' of git://git./linux/kernel/git/evalenti/linux-soc-thermal

Pull thermal management fixes from Eduardo Valentin:
 "Specifics:

   - Several fixes in tmon tool.

   - Fixes in intel int340x for _ART and _TRT tables.

   - Add id for Avoton SoC into powerclamp driver.

   - Fixes in RCAR thermal driver to remove race conditions and fix fail
     path

   - Fixes in TI thermal driver: removal of unnecessary code and build
     fix if !CONFIG_PM_SLEEP

   - Cleanups in exynos thermal driver

   - Add stubs for include/linux/thermal.h.  Now drivers using thermal
     calls but that also work without CONFIG_THERMAL will be able to
     compile for systems that don't care about thermal.

  Note: I am sending this pull on Rui's behalf while he fixes issues in
  his Linux box"

* 'fixes-for-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: int340x_thermal: Ignore missing _ART, _TRT tables
  thermal/intel_powerclamp: add id for Avoton SoC
  tools/thermal: tmon: silence 'set but not used' warnings
  tools/thermal: tmon: use pkg-config to determine library dependencies
  tools/thermal: tmon: support cross-compiling
  tools/thermal: tmon: add .gitignore
  tools/thermal: tmon: fixup tui windowing calculations
  tools/thermal: tmon: tui: don't hard-code dialog window size assumptions
  tools/thermal: tmon: add min/max macros
  tools/thermal: tmon: add --target-temp parameter
  thermal: exynos: Clean-up code to use oneline entry for exynos compatible table
  thermal: rcar: Make error and remove paths symmetrical with init
  thermal: rcar: Fix race condition between init and interrupt
  thermal: Introduce dummy functions when thermal is not defined
  ti-soc-thermal: Delete an unnecessary check before the function call "cpufreq_cooling_unregister"
  thermal: ti-soc-thermal: bandgap: Fix build warning if !CONFIG_PM_SLEEP

9 years agoMerge tag 'md/4.0-fixes' of git://neil.brown.name/md
Linus Torvalds [Mon, 2 Mar 2015 22:03:27 +0000 (14:03 -0800)]
Merge tag 'md/4.0-fixes' of git://neil.brown.name/md

Pull md fixes from Neil Brown:
 "Three md fixes:

   - fix a read-balance problem that was reported 2 years ago, but that
     I never noticed the report :-(

   - fix for rare RAID6 problem causing incorrect bitmap updates when
     two devices fail.

   - add __ATTR_PREALLOC annotation now that it is possible"

* tag 'md/4.0-fixes' of git://neil.brown.name/md:
  md: mark some attributes as pre-alloc
  raid5: check faulty flag for array status during recovery.
  md/raid1: fix read balance when a drive is write-mostly.

9 years agoMerge tag 'metag-fixes-v4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhoga...
Linus Torvalds [Mon, 2 Mar 2015 22:02:17 +0000 (14:02 -0800)]
Merge tag 'metag-fixes-v4.0-1' of git://git./linux/kernel/git/jhogan/metag

Pull arch/metag fix from James Hogan:
 "This is just a single patch to fix the KSTK_EIP() and KSTK_ESP()
  macros for metag which have always been erronously returning the PC
  and stack pointer of the task's kernel context rather than from its
  user context saved at entry from userland into the kernel, which
  affects the contents of /proc/<pid>/maps and /proc/<pid>/stat"

* tag 'metag-fixes-v4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  metag: Fix KSTK_EIP() and KSTK_ESP() macros

9 years agoARM: dts: meson: add DTS file for MINIX NEO-X8
Beniamino Galvani [Sun, 1 Mar 2015 18:19:26 +0000 (19:19 +0100)]
ARM: dts: meson: add DTS file for MINIX NEO-X8

Add a DTS file for MINIX NEO-X8, a Meson8-based digital media player.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
9 years agoARM: dts: meson8: add pinctrl node
Beniamino Galvani [Sat, 17 Jan 2015 18:15:16 +0000 (19:15 +0100)]
ARM: dts: meson8: add pinctrl node

Add pinctrl node to the DTSI file for meson8 and sub-nodes for some
standard mux configurations.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
9 years agoARM: dts: meson: enable Ethernet controller
Beniamino Galvani [Sun, 1 Mar 2015 19:45:37 +0000 (20:45 +0100)]
ARM: dts: meson: enable Ethernet controller

Add a node for the Ethernet controller to Meson DTS file and
enable it on the Geniatech ATV1200 board.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
9 years agoARM: dts: meson: add node for SPIFC
Beniamino Galvani [Sun, 1 Mar 2015 19:39:51 +0000 (20:39 +0100)]
ARM: dts: meson: add node for SPIFC

This adds a node for the SPI Flash Controller to the Amlogic Meson
DTS.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Mark Brown <broonie@kernel.org>
9 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 1 Mar 2015 20:22:44 +0000 (12:22 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "A CR4-shadow 32-bit init fix, plus two typo fixes"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Init per-cpu shadow copy of CR4 on 32-bit CPUs too
  x86/platform/intel-mid: Fix trivial printk message typo in intel_mid_arch_setup()
  x86/cpu/intel: Fix trivial typo in intel_tlb_table[]

9 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 1 Mar 2015 20:00:25 +0000 (12:00 -0800)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Ingo Molnar:
 "Three clockevents/clocksource driver fixes"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: pxa: Fix section mismatch
  clocksource: mtk: Fix race conditions in probe code
  clockevents: asm9260: Fix compilation error with sparc/sparc64 allyesconfig

9 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 1 Mar 2015 19:56:13 +0000 (11:56 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Two kprobes fixes and a handful of tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tools: Make sparc64 arch point to sparc
  perf symbols: Define EM_AARCH64 for older OSes
  perf top: Fix SIGBUS on sparc64
  perf tools: Fix probing for PERF_FLAG_FD_CLOEXEC flag
  perf tools: Fix pthread_attr_setaffinity_np build error
  perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check
  perf bench: Fix order of arguments to memcpy_alloc_mem
  kprobes/x86: Check for invalid ftrace location in __recover_probed_insn()
  kprobes/x86: Use 5-byte NOP when the code might be modified by ftrace

9 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 1 Mar 2015 19:27:04 +0000 (11:27 -0800)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull locking fix from Ingo Molnar:
 "An rtmutex deadlock path fixlet"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rtmutex: Set state back to running on error

9 years agoMerge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git...
Ingo Molnar [Sun, 1 Mar 2015 16:41:42 +0000 (17:41 +0100)]
Merge tag 'perf-urgent-for-mingo' of git://git./linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

  - pthread_attr_setaffinity_np() feature detection build fixes (Adrian Hunter, Josh Boyer)

  - Fix probing for PERF_FLAG_FD_CLOEXEC flag (Adrian Hunter)

  - Fix order of arguments to memcpy_alloc_mem in 'perf bench' (Bruce Merry)

  - Sparc64 and Aarch64 build and segfault fixes (David Ahern)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agolocking/rtmutex: Set state back to running on error
Sebastian Andrzej Siewior [Fri, 27 Feb 2015 16:57:09 +0000 (17:57 +0100)]
locking/rtmutex: Set state back to running on error

The "usual" path is:

 - rt_mutex_slowlock()
 - set_current_state()
 - task_blocks_on_rt_mutex() (ret 0)
 - __rt_mutex_slowlock()
   - sleep or not but do return with __set_current_state(TASK_RUNNING)
 - back to caller.

In the early error case where task_blocks_on_rt_mutex() return
-EDEADLK we never change the task's state back to RUNNING. I
assume this is intended. Without this change after ww_mutex
using rt_mutex the selftest passes but later I get plenty of:

  | bad: scheduling from the idle thread!

backtraces.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: afffc6c1805d ("locking/rtmutex: Optimize setting task running after being blocked")
Link: http://lkml.kernel.org/r/1425056229-22326-4-git-send-email-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agoARM: shmobile: r8a7791: Fix IPMMU-GP clock to device tree
Ryo Kataoka [Thu, 19 Feb 2015 13:29:06 +0000 (22:29 +0900)]
ARM: shmobile: r8a7791: Fix IPMMU-GP clock to device tree

Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoARM: shmobile: r8a7794: alt: Fix ethernet controller PHY IRQ line
Laurent Pinchart [Thu, 26 Feb 2015 14:08:33 +0000 (16:08 +0200)]
ARM: shmobile: r8a7794: alt: Fix ethernet controller PHY IRQ line

The PHY IRQ line is connected to external IRQ8, not IRQ0. Fix DT
accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Sat, 28 Feb 2015 18:36:48 +0000 (10:36 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Just general fixes: radeon, i915, atmel, tegra, amdkfd and one core
  fix"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (28 commits)
  drm: atmel-hlcdc: remove clock polarity from crtc driver
  drm/radeon: only enable DP audio if the monitor supports it
  drm/radeon: fix atom aux payload size check for writes (v2)
  drm/radeon: fix 1 RB harvest config setup for TN/RL
  drm/radeon: enable SRBM timeout interrupt on EG/NI
  drm/radeon: enable SRBM timeout interrupt on SI
  drm/radeon: enable SRBM timeout interrupt on CIK v2
  drm/radeon: dump full IB if we hit a packet error
  drm/radeon: disable mclk switching with 120hz+ monitors
  drm/radeon: use drm_mode_vrefresh() rather than mode->vrefresh
  drm/radeon: enable native backlight control on old macs
  drm/i915: Fix frontbuffer false positve.
  drm/i915: Align initial plane backing objects correctly
  drm/i915: avoid processing spurious/shared interrupts in low-power states
  drm/i915: Check obj->vma_list under the struct_mutex
  drm/i915: Fix a use after free, and unbalanced refcounting
  drm: atmel-hlcdc: remove useless pm_runtime_put_sync in probe
  drm: atmel-hlcdc: reset layer A2Q and UPDATE bits when disabling it
  drm: Fix deadlock due to getconnector locking changes
  drm/i915: Dell Chromebook 11 has PWM backlight
  ...

9 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 28 Feb 2015 18:21:57 +0000 (10:21 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block layer fixes from Jens Axboe:
 "Two smaller fixes for this cycle:

   - A fixup from Keith so that NVMe compiles without BLK_INTEGRITY,
     basically just moving the code around appropriately.

   - A fixup for shm, fixing an oops in shmem_mapping() for mapping with
     no inode.  From Sasha"

[ The shmem fix doesn't look block-layer-related, but fixes a bug that
  happened due to the backing_dev_info removal..  - Linus ]

* 'for-linus' of git://git.kernel.dk/linux-block:
  mm: shmem: check for mapping owner before dereferencing
  NVMe: Fix for BLK_DEV_INTEGRITY not set

9 years agoMerge tag 'xfs-for-linus-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 28 Feb 2015 18:06:33 +0000 (10:06 -0800)]
Merge tag 'xfs-for-linus-4.0-rc2' of git://git./linux/kernel/git/dgc/linux-xfs

Pull xfs fixes from Dave Chinner:
 "These are fixes for regressions/bugs introduced in the 4.0 merge cycle
  and problems discovered during the merge window that need to be pushed
  back to stable kernels ASAP.

  This contains:
   - ensure quota type is reset in on-disk dquots
   - fix missing partial EOF block data flush on truncate extension
   - fix transaction leak in error handling for new pnfs block layout
     support
   - add missing target_ip check to RENAME_EXCHANGE"

* tag 'xfs-for-linus-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
  xfs: cancel failed transaction in xfs_fs_commit_blocks()
  xfs: Ensure we have target_ip for RENAME_EXCHANGE
  xfs: ensure truncate forces zeroed blocks to disk
  xfs: Fix quota type in quota structures when reusing quota file

9 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Sat, 28 Feb 2015 17:58:03 +0000 (09:58 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "13 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: add missing __PAGETABLE_{PUD,PMD}_FOLDED defines
  mm: page_alloc: revert inadvertent !__GFP_FS retry behavior change
  kernel/sys.c: fix UNAME26 for 4.0
  mm: memcontrol: use "max" instead of "infinity" in control knobs
  zram: use proper type to update max_used_pages
  drivers/rtc/rtc-ds1685.c: fix conditional in ds1685_rtc_sysfs_time_regs_{show,store}
  nilfs2: fix potential memory overrun on inode
  scripts/gdb: add empty package initialization script
  rtc: ds1685: remove superfluous checks for out-of-range u8 values
  rtc: ds1685: fix ds1685_rtc_alarm_irq_enable build error
  memcg: fix low limit calculation
  mm/nommu: fix memory leak
  ocfs2: update web page + git tree in documentation

9 years agomm: add missing __PAGETABLE_{PUD,PMD}_FOLDED defines
Kirill A. Shutemov [Fri, 27 Feb 2015 23:52:12 +0000 (15:52 -0800)]
mm: add missing __PAGETABLE_{PUD,PMD}_FOLDED defines

Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page
table levels folded.  Usually, these defines are provided by
<asm-generic/pgtable-nopmd.h> and <asm-generic/pgtable-nopud.h>.

But some architectures fold page table levels in a custom way.  They
need to define these macros themself.  This patch adds missing defines.

The patch fixes mm->nr_pmds underflow and eliminates dead __pmd_alloc()
and __pud_alloc() on architectures without these page table levels.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm: page_alloc: revert inadvertent !__GFP_FS retry behavior change
Johannes Weiner [Fri, 27 Feb 2015 23:52:09 +0000 (15:52 -0800)]
mm: page_alloc: revert inadvertent !__GFP_FS retry behavior change

Historically, !__GFP_FS allocations were not allowed to invoke the OOM
killer once reclaim had failed, but nevertheless kept looping in the
allocator.

Commit 9879de7373fc ("mm: page_alloc: embed OOM killing naturally into
allocation slowpath"), which should have been a simple cleanup patch,
accidentally changed the behavior to aborting the allocation at that
point.  This creates problems with filesystem callers (?) that currently
rely on the allocator waiting for other tasks to intervene.

Revert the behavior as it shouldn't have been changed as part of a
cleanup patch.

Fixes: 9879de7373fc ("mm: page_alloc: embed OOM killing naturally into allocation slowpath")
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Dave Chinner <david@fromorbit.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: <stable@vger.kernel.org> [3.19.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agokernel/sys.c: fix UNAME26 for 4.0
Jon DeVree [Fri, 27 Feb 2015 23:52:07 +0000 (15:52 -0800)]
kernel/sys.c: fix UNAME26 for 4.0

There's a uname workaround for broken userspace which can't handle kernel
versions of 3.x.  Update it for 4.x.

Signed-off-by: Jon DeVree <nuxi@vault24.org>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm: memcontrol: use "max" instead of "infinity" in control knobs
Johannes Weiner [Fri, 27 Feb 2015 23:52:04 +0000 (15:52 -0800)]
mm: memcontrol: use "max" instead of "infinity" in control knobs

The memcg control knobs indicate the highest possible value using the
symbolic name "infinity", which is long and awkward to type.

Switch to the string "max", which is just as descriptive but shorter and
sweeter.

This changes a user interface, so do it before the release and before
the development flag is dropped from the default hierarchy.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agozram: use proper type to update max_used_pages
Joonsoo Kim [Fri, 27 Feb 2015 23:52:01 +0000 (15:52 -0800)]
zram: use proper type to update max_used_pages

max_used_pages is defined as atomic_long_t so we need to use unsigned
long to keep temporary value for it rather than int which is smaller
than unsigned long in a 64 bit system.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agodrivers/rtc/rtc-ds1685.c: fix conditional in ds1685_rtc_sysfs_time_regs_{show,store}
Joshua Kinard [Fri, 27 Feb 2015 23:51:59 +0000 (15:51 -0800)]
drivers/rtc/rtc-ds1685.c: fix conditional in ds1685_rtc_sysfs_time_regs_{show,store}

Fix a conditional statement checking for NULL in both
ds1685_rtc_sysfs_time_regs_show and ds1685_rtc_sysfs_time_regs_store
that was using a logical AND when it should be using a logical OR so
that we fail out of the function properly if the condition ever
evaluates to true.

Fixes: aaaf5fbf56f1 ("rtc: add driver for DS1685 family of real time clocks")
Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agonilfs2: fix potential memory overrun on inode
Ryusuke Konishi [Fri, 27 Feb 2015 23:51:56 +0000 (15:51 -0800)]
nilfs2: fix potential memory overrun on inode

Each inode of nilfs2 stores a root node of a b-tree, and it turned out to
have a memory overrun issue:

Each b-tree node of nilfs2 stores a set of key-value pairs and the number
of them (in "bn_nchildren" member of nilfs_btree_node struct), as well as
a few other "bn_*" members.

Since the value of "bn_nchildren" is used for operations on the key-values
within the b-tree node, it can cause memory access overrun if a large
number is incorrectly set to "bn_nchildren".

For instance, nilfs_btree_node_lookup() function determines the range of
binary search with it, and too large "bn_nchildren" leads
nilfs_btree_node_get_key() in that function to overrun.

As for intermediate b-tree nodes, this is prevented by a sanity check
performed when each node is read from a drive, however, no sanity check
has been done for root nodes stored in inodes.

This patch fixes the issue by adding missing sanity check against b-tree
root nodes so that it's called when on-memory inodes are read from ifile,
inode metadata file.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoscripts/gdb: add empty package initialization script
Jan Kiszka [Fri, 27 Feb 2015 23:51:53 +0000 (15:51 -0800)]
scripts/gdb: add empty package initialization script

This got lost during the initial merge process: Python requires an
__init__.py script, even if empty, in order to accept a directory as
package.  Add it, this time as a non-empty file.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agortc: ds1685: remove superfluous checks for out-of-range u8 values
Geert Uytterhoeven [Fri, 27 Feb 2015 23:51:51 +0000 (15:51 -0800)]
rtc: ds1685: remove superfluous checks for out-of-range u8 values

drivers/rtc/rtc-ds1685.c: In function `ds1685_rtc_read_alarm':
drivers/rtc/rtc-ds1685.c:402: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:409: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:416: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c: In function `ds1685_rtc_set_alarm':
drivers/rtc/rtc-ds1685.c:475: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:478: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:481: warning: comparison is always true due to limited range of data type

u8 cannot contain a value larger than 0xff, hence drop the checks.
Wrapping the checks in unlikely() indicated some sense of humor, though ;-)

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agortc: ds1685: fix ds1685_rtc_alarm_irq_enable build error
Arnd Bergmann [Fri, 27 Feb 2015 23:51:48 +0000 (15:51 -0800)]
rtc: ds1685: fix ds1685_rtc_alarm_irq_enable build error

The newly added ds1685 driver causes a build error when enabled without
CONFIG_RTC_INTF_DEV:

  drivers/rtc/rtc-ds1685.c:919:22: error: 'ds1685_rtc_alarm_irq_enable' undeclared here (not in a function)
    .alarm_irq_enable = ds1685_rtc_alarm_irq_enable,

Apparently the driver was incorrectly changed to reflect the interface
change from 16380c153a69c ("RTC: Convert rtc drivers to use the
alarm_irq_enable method"), which removed the respective #ifdef from all
other rtc drivers.

This does the same change that was merged for the other drivers before and
removes the #ifdef, allowing the interrupts to be enabled through the
in-kernel rtc interface independent of the existence of /dev/rtc.

Fixes: aaaf5fbf56f ("rtc: add driver for DS1685 family of real time clocks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomemcg: fix low limit calculation
Michal Hocko [Fri, 27 Feb 2015 23:51:46 +0000 (15:51 -0800)]
memcg: fix low limit calculation

A memcg is considered low limited even when the current usage is equal to
the low limit.  This leads to interesting side effects e.g.
groups/hierarchies with no memory accounted are considered protected and
so the reclaim will emit MEMCG_LOW event when encountering them.

Another and much bigger issue was reported by Joonsoo Kim.  He has hit a
NULL ptr dereference with the legacy cgroup API which even doesn't have
low limit exposed.  The limit is 0 by default but the initial check fails
for memcg with 0 consumption and parent_mem_cgroup() would return NULL if
use_hierarchy is 0 and so page_counter_read would try to dereference NULL.

I suppose that the current implementation is just an overlook because the
documentation in Documentation/cgroups/unified-hierarchy.txt says:

  "The memory.low boundary on the other hand is a top-down allocated
  reserve.  A cgroup enjoys reclaim protection when it and all its
  ancestors are below their low boundaries"

Fix the usage and the low limit comparision in mem_cgroup_low accordingly.

Fixes: 241994ed8649 (mm: memcontrol: default hierarchy interface for memory)
Reported-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm/nommu: fix memory leak
Joonsoo Kim [Fri, 27 Feb 2015 23:51:43 +0000 (15:51 -0800)]
mm/nommu: fix memory leak

Maxime reported the following memory leak regression due to commit
dbc8358c7237 ("mm/nommu: use alloc_pages_exact() rather than its own
implementation").

On v3.19, I am facing a memory leak.  Each time I run a command one page
is lost.  Here an example with busybox's free command:

  / # free
               total       used       free     shared    buffers     cached
  Mem:          7928       1972       5956          0          0        492
  -/+ buffers/cache:       1480       6448
  / # free
               total       used       free     shared    buffers     cached
  Mem:          7928       1976       5952          0          0        492
  -/+ buffers/cache:       1484       6444
  / # free
               total       used       free     shared    buffers     cached
  Mem:          7928       1980       5948          0          0        492
  -/+ buffers/cache:       1488       6440
  / # free
               total       used       free     shared    buffers     cached
  Mem:          7928       1984       5944          0          0        492
  -/+ buffers/cache:       1492       6436
  / # free
               total       used       free     shared    buffers     cached
  Mem:          7928       1988       5940          0          0        492
  -/+ buffers/cache:       1496       6432

At some point, the system fails to sastisfy 256KB allocations:

  free: page allocation failure: order:6, mode:0xd0
  CPU: 0 PID: 67 Comm: free Not tainted 3.19.0-05389-gacf2cf1-dirty #64
  Hardware name: STM32 (Device Tree Support)
    show_stack+0xb/0xc
    warn_alloc_failed+0x97/0xbc
    __alloc_pages_nodemask+0x295/0x35c
    __get_free_pages+0xb/0x24
    alloc_pages_exact+0x19/0x24
    do_mmap_pgoff+0x423/0x658
    vm_mmap_pgoff+0x3f/0x4e
    load_flat_file+0x20d/0x4f8
    load_flat_binary+0x3f/0x26c
    search_binary_handler+0x51/0xe4
    do_execveat_common+0x271/0x35c
    do_execve+0x19/0x1c
    ret_fast_syscall+0x1/0x4a
  Mem-info:
  Normal per-cpu:
  CPU    0: hi:    0, btch:   1 usd:   0
  active_anon:0 inactive_anon:0 isolated_anon:0
   active_file:0 inactive_file:0 isolated_file:0
   unevictable:123 dirty:0 writeback:0 unstable:0
   free:1515 slab_reclaimable:17 slab_unreclaimable:139
   mapped:0 shmem:0 pagetables:0 bounce:0
   free_cma:0
  Normal free:6060kB min:352kB low:440kB high:528kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:492kB isolated(anon):0ks
  lowmem_reserve[]: 0 0
  Normal: 23*4kB (U) 22*8kB (U) 24*16kB (U) 23*32kB (U) 23*64kB (U) 23*128kB (U) 1*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 6060kB
  123 total pagecache pages
  2048 pages of RAM
  1538 free pages
  66 reserved pages
  109 slab pages
  -46 pages shared
  0 pages swap cached
  nommu: Allocation of length 221184 from process 67 (free) failed
  Normal per-cpu:
  CPU    0: hi:    0, btch:   1 usd:   0
  active_anon:0 inactive_anon:0 isolated_anon:0
   active_file:0 inactive_file:0 isolated_file:0
   unevictable:123 dirty:0 writeback:0 unstable:0
   free:1515 slab_reclaimable:17 slab_unreclaimable:139
   mapped:0 shmem:0 pagetables:0 bounce:0
   free_cma:0
  Normal free:6060kB min:352kB low:440kB high:528kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:492kB isolated(anon):0ks
  lowmem_reserve[]: 0 0
  Normal: 23*4kB (U) 22*8kB (U) 24*16kB (U) 23*32kB (U) 23*64kB (U) 23*128kB (U) 1*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 6060kB
  123 total pagecache pages
  Unable to allocate RAM for process text/data, errno 12 SEGV

This problem happens because we allocate ordered page through
__get_free_pages() in do_mmap_private() in some cases and we try to free
individual pages rather than ordered page in free_page_series().  In
this case, freeing pages whose refcount is not 0 won't be freed to the
page allocator so memory leak happens.

To fix the problem, this patch changes __get_free_pages() to
alloc_pages_exact() since alloc_pages_exact() returns
physically-contiguous pages but each pages are refcounted.

Fixes: dbc8358c7237 ("mm/nommu: use alloc_pages_exact() rather than its own implementation").
Reported-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Tested-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <stable@vger.kernel.org> [3.19]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoocfs2: update web page + git tree in documentation
Mark Fasheh [Fri, 27 Feb 2015 23:51:40 +0000 (15:51 -0800)]
ocfs2: update web page + git tree in documentation

We (the Ocfs2 project) recently moved the location of our ocfs2-tools
git tree and project web page.  The pertinent discussion can be seen
here:

  https://oss.oracle.com/pipermail/ocfs2-devel/2015-February/010579.html

The following patch updates the Ocfs2 documentation in MAINTAINERS,
ocfs2.txt, and dlmfs.txt.  I added our new official web page, changed
the location of our tools git tree and removed the link to Joel's
ancient kernel git tree - Andrew has handled our patches for a while
now.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agox86: Init per-cpu shadow copy of CR4 on 32-bit CPUs too
Steven Rostedt [Fri, 27 Feb 2015 19:50:19 +0000 (14:50 -0500)]
x86: Init per-cpu shadow copy of CR4 on 32-bit CPUs too

Commit:

   1e02ce4cccdc ("x86: Store a per-cpu shadow copy of CR4")

added a shadow CR4 such that reads and writes that do not
modify the CR4 execute much faster than always reading the
register itself.

The change modified cpu_init() in common.c, so that the
shadow CR4 gets initialized before anything uses it.

Unfortunately, there's two cpu_init()s in common.c. There's
one for 64-bit and one for 32-bit. The commit only added
the shadow init to the 64-bit path, but the 32-bit path
needs the init too.

Link: http://lkml.kernel.org/r/20150227125208.71c36402@gandalf.local.home
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Andy Lutomirski <luto@amacapital.net>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20150227145019.2bdd4354@gandalf.local.home
Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agoMerge branch 'linus' into x86/urgent, to merge dependent patch
Ingo Molnar [Sat, 28 Feb 2015 07:03:10 +0000 (08:03 +0100)]
Merge branch 'linus' into x86/urgent, to merge dependent patch

Signed-off-by: Ingo Molnar <mingo@kernel.org>