platform/kernel/linux-arm64.git
11 years agoMerge tag 'renesas-pinmux-fixes-for-v3.10' of git://git.kernel.org/pub/scm/linux...
Olof Johansson [Thu, 11 Apr 2013 17:29:58 +0000 (10:29 -0700)]
Merge tag 'renesas-pinmux-fixes-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/soc2

From Simon Horman:
Renesas ARM and SH based SoC pinmux fixes for v3.10

Correct a typo in sh-pfc r8a7779

* tag 'renesas-pinmux-fixes-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  sh-pfc: r8a7779: tidyup intc_irq3_b typo

Signed-off-by: Olof Johansson <olof@lixom.net>
11 years agoMerge tag 'renesas-soc-r8a7778-for-v3.10' of git://git.kernel.org/pub/scm/linux/kerne...
Arnd Bergmann [Tue, 9 Apr 2013 12:44:07 +0000 (14:44 +0200)]
Merge tag 'renesas-soc-r8a7778-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/soc2

From Simon Horman <horms+renesas@verge.net.au>:

Renesas ARM r8a7778 SoC update for v3.10

Update to the r8a7778 SoC:
* Add SH Ethernet support
* Add r8a7778_init_irq_extpin() to allow configuration of IRQ0 - IRQ3
  - This is a requirement for SMSC ethernet support
* Cleanup: remove PLATFORM_INFO macro

This pull request is based on:
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-soc2-for-v3.10

* tag 'renesas-soc-r8a7778-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: R8A7778: add Ether support
  ARM: shmobile: r8a7778: add r8a7778_init_irq_extpin()
  ARM: shmobile: r8a7778: remove pointless PLATFORM_INFO()

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge tag 'renesas-soc-r8a7779-for-v3.10' of git://git.kernel.org/pub/scm/linux/kerne...
Arnd Bergmann [Tue, 9 Apr 2013 12:43:00 +0000 (14:43 +0200)]
Merge tag 'renesas-soc-r8a7779-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/soc2

From Simon Horman <horms+renesas@verge.net.au>:

Renesas ARM r8a7779 SoC update for v3.10

Update to the r8a7779 SoC:
* Add SH Ethernet support
* Add comment describing clock ratios

This pull request is based on:
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-soc2-for-v3.10

* tag 'renesas-soc-r8a7779-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: R8A7779: add Ether support
  ARM: shmobile: r8a7779: add each clocks ratio on comment area

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agosh-pfc: r8a7779: tidyup intc_irq3_b typo
Kuninori Morimoto [Mon, 8 Apr 2013 02:49:17 +0000 (02:49 +0000)]
sh-pfc: r8a7779: tidyup intc_irq3_b typo

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
11 years agoMerge branch 'gic/cleanup' into next/soc2
Arnd Bergmann [Mon, 8 Apr 2013 16:59:19 +0000 (18:59 +0200)]
Merge branch 'gic/cleanup' into next/soc2

Both zynq and shmobile have conflicts against the gic cleanup
series, resolved here.

Conflicts:
arch/arm/mach-shmobile/smp-emev2.c
arch/arm/mach-shmobile/smp-r8a7779.c
arch/arm/mach-shmobile/smp-sh73a0.c
arch/arm/mach-zynq/platsmp.c
drivers/gpio/gpio-pl061.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge branch 'zynq/core-smp' of git://git.xilinx.com/linux-xlnx into next/soc2
Arnd Bergmann [Mon, 8 Apr 2013 16:42:16 +0000 (18:42 +0200)]
Merge branch 'zynq/core-smp' of git://git.xilinx.com/linux-xlnx into next/soc2

From Michal Simek <michal.simek@xilinx.com>:

This branch is based on zynq/clksrc/cleanup parts because
there are some dependencies on moving timer to generic location.

I could based it on standard Linux tagged version but you will get
several conflicts you will have to resolve.
If you are OK to resolving these problems, please let me know
I will create another branch with core-smp changes which are not based
on zynq/clksrc/cleanup branch.

* 'zynq/core-smp' of git://git.xilinx.com/linux-xlnx:
  arm: zynq: Add hotplug support
  arm: zynq: Add smp support
  arm: zynq: Add smp_twd timer
  arm: zynq: Get rid of xilinx function prefix
  arm: zynq: Add support for system reset
  arm: zynq: Move slcr initialization to separate file
  arm: zynq: Load scu baseaddress at run time

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoARM: shmobile: R8A7778: add Ether support
Sergei Shtylyov [Thu, 4 Apr 2013 18:55:46 +0000 (18:55 +0000)]
ARM: shmobile: R8A7778: add Ether support

Add Ether clock and platform device for R8A7778 SoC; add a function to register
this device with board-specific platform data.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: R8A7779: add Ether support
Sergei Shtylyov [Thu, 4 Apr 2013 18:53:50 +0000 (18:53 +0000)]
ARM: shmobile: R8A7779: add Ether support

Add Ether clock and platform device for R8A7779 SoC; add a function to register
this device with board-specific platform data.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7779: add each clocks ratio on comment area
Kuninori Morimoto [Thu, 4 Apr 2013 07:07:14 +0000 (00:07 -0700)]
ARM: shmobile: r8a7779: add each clocks ratio on comment area

Adding comment describing the r8a7779 clock frequencies depending on
MD pin settings.

Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoarm: zynq: Add hotplug support
Michal Simek [Wed, 20 Mar 2013 12:56:15 +0000 (13:56 +0100)]
arm: zynq: Add hotplug support

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Add smp support
Michal Simek [Wed, 20 Mar 2013 12:50:12 +0000 (13:50 +0100)]
arm: zynq: Add smp support

Zynq is dual core Cortex A9 which starts always
at zero. Using simple trampoline ensure long jump
to secondary_startup code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
11 years agoarm: zynq: Add smp_twd timer
Michal Simek [Wed, 27 Mar 2013 12:36:39 +0000 (13:36 +0100)]
arm: zynq: Add smp_twd timer

The zynq has a Cortex-A9 with the corresponding smp_twd timers. Use them.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Get rid of xilinx function prefix
Michal Simek [Wed, 27 Mar 2013 12:07:00 +0000 (13:07 +0100)]
arm: zynq: Get rid of xilinx function prefix

Xilinx is vendor name not SoC name. Use zynq instead.

Also remove one checkpatch warning:
WARNING: static const char * array should probably be
static const char * const
+static const char *xilinx_dt_match[] = {

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Add support for system reset
Michal Simek [Wed, 20 Mar 2013 10:42:15 +0000 (11:42 +0100)]
arm: zynq: Add support for system reset

Do system reset via slcr registers.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Move slcr initialization to separate file
Michal Simek [Wed, 27 Mar 2013 11:37:53 +0000 (12:37 +0100)]
arm: zynq: Move slcr initialization to separate file

Create separate slcr driver instead of polluting common code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Load scu baseaddress at run time
Michal Simek [Wed, 20 Mar 2013 10:11:43 +0000 (11:11 +0100)]
arm: zynq: Load scu baseaddress at run time

Use Cortex a9 cp15 to read scu baseaddress.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Move timer to generic location
Michal Simek [Wed, 20 Mar 2013 09:46:01 +0000 (10:46 +0100)]
arm: zynq: Move timer to generic location

Move zynq timer out of mach folder to generic location
and enable it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Do not use xilinx specific function names
Michal Simek [Wed, 27 Mar 2013 11:05:28 +0000 (12:05 +0100)]
arm: zynq: Do not use xilinx specific function names

Remove all xilinx specific names from the driver
because this is generic driver for cadence ttc.
xttc->ttc
ttcps->ttc
...

No functional changes in this driver.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Move timer to clocksource interface
Michal Simek [Wed, 20 Mar 2013 09:24:59 +0000 (10:24 +0100)]
arm: zynq: Move timer to clocksource interface

Use clocksource timer initialization.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoarm: zynq: Use standard timer binding
Michal Simek [Wed, 20 Mar 2013 09:15:28 +0000 (10:15 +0100)]
arm: zynq: Use standard timer binding

Use cdns,ttc because this driver is Cadence Rev06
Triple Timer Counter and everybody can use it
without xilinx specific function name or probing.

Also use standard dt description for timer
and also prepare for moving to clocksource
initialization.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
11 years agoARM: shmobile: r8a7778: add r8a7778_init_irq_extpin()
Kuninori Morimoto [Tue, 2 Apr 2013 04:19:37 +0000 (21:19 -0700)]
ARM: shmobile: r8a7778: add r8a7778_init_irq_extpin()

This patch adds r8a7778_init_irq_extpin() for IRQ0 - IRQ3.
But this patch doesn't enable DT settings on r8a7778.dts,
because R8A7778 chip external IRQ depends on
IRQ0 - IRQ3 pin encoding which came from platform board
implementation.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7778: remove pointless PLATFORM_INFO()
Kuninori Morimoto [Tue, 2 Apr 2013 04:19:17 +0000 (21:19 -0700)]
ARM: shmobile: r8a7778: remove pointless PLATFORM_INFO()

remove pointless PLATFORM_INFO() macro from setup-r8a7778,
and, used original platform_device_register_xxx()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoMerge tag 'renesas-pinmux2-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Wed, 3 Apr 2013 06:06:48 +0000 (23:06 -0700)]
Merge tag 'renesas-pinmux2-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/soc2

Second round of Renesas ARM and SH based SoC pinmux updates for v3.10

Highlights:

* Compilation fixes for sh7269 and for when CONFIG_BUG is not set
* sh-pfc Support for r8a73a4 SoC
* Move GPIOs handling from the PFC device to separate GPIO devices on the r8a7779 SoC

This pull request is based on a merge of:
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-pinmux-for-v3.10
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-soc2-for-v3.10

* tag 'renesas-pinmux2-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (185 commits)
  sh-pfc: r8a73a4: Remove unused GPIO bias data
  ARM: shmobile: r8a73a4: Remove all GPIO enums
  sh-pfc: r8a73a4: Remove function GPIOs
  ARM: shmobile: r8a73a4: Remove IRQC function GPIOs
  ARM: shmobile: r8a73a4: Remove SCIF function GPIOs
  sh-pfc: r8a73a4: Remove IRQC function GPIOS
  sh-pfc: r8a73a4: Remove SCIF function GPIOS
  sh-pfc: r8a73a4: Add IRQC pin groups and functions
  sh-pfc: r8a73a4: Add SCIF pin groups and functions
  sh-pfc: r8a73a4: Add bias (pull-up/down) pinconf support
  sh-pfc: r8a73a4: GPIO IRQ support
  sh-pfc: r8a73a4: Support sparse GPIO numbers
  sh-pfc: Add r8a73a4 pinmux support
  sh-pfc: r8a7779: Split DU input and output pixel clocks
  sh-pfc: r8a7779: Remove GPIO data
  ARM: shmobile: r8a7779: Register GPIO devices
  sh-pfc: Configure pins as GPIOs at request time when handled externally
  sh-pfc: Skip gpiochip registration when no GPIO resource is found
  sh-pfc: Make GPIO support optional
  sh-pfc: Make function GPIOs support optional
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
11 years agoMerge tag 'renesas-soc2-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Wed, 3 Apr 2013 05:48:57 +0000 (22:48 -0700)]
Merge tag 'renesas-soc2-for-v3.10' of git://git./linux/kernel/git/horms/renesas into next/soc2

Second round of Renesas ARM SoC updates for v3.10

Some Highlights:

* Add r8a7790 SoC
* Add r8a73a4 SoC
* Migrate r8a7740 SoC from INTC to GIC
* Add thermal driver support to r8a73a4 SoC
* Add irqpin DT nodes to sh73a0 SoC
* Add SCIF support to r8a7778 SoC

This pull request is based on a merge of:
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-soc-for-v3.10
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-intc-external-irq2-for-v3.10

* tag 'renesas-soc2-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (88 commits)
  ARM: shmobile: r8a7790 SoC 64-bit DT support
  ARM: shmobile: r8a73a4 SoC 64-bit DT support
  ARM: shmobile: r8a7790 PFC support
  ARM: shmobile: r8a7790 IRQC support
  ARM: shmobile: r8a7790 SCIF support
  ARM: shmobile: Initial r8a7790 SoC support
  ARM: shmobile: r8a7779: move global functions to r8a7779.h
  ARM: shmobile: r8a7740: move global functions to r8a7740.h
  ARM: shmobile: sh73a0: move global functions to sh73a0.h
  ARM: shmobile: sh7372: move global functions to sh7372.h
  ARM: shmobile: r8a7779: remove DIV4 clocks and use fixed ratio clock
  ARM: shmobile: r8a7740: use fixed ratio clock
  ARM: shmobile: r8a7740: tidyup comment/implementation mismatch
  ARM: shmobile: sh73a0: use fixed ratio clock
  ARM: shmobile: sh7372: use fixed ratio clock
  ARM: shmobile: add struct clk_ratio and fixed ratio clock macro
  ARM: shmobile: sh7372: remove DIV4_ZT* clocks
  ARM: shmobile: sh73a0: remove DIV4_ZT* clocks
  ARM: shmobile: sh73a0: add a TWD clock
  ARM: shmobile: r8a7740: Migrate from INTC to GIC
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
11 years agosh-pfc: r8a73a4: Remove unused GPIO bias data
Magnus Damm [Tue, 26 Mar 2013 13:51:53 +0000 (22:51 +0900)]
sh-pfc: r8a73a4: Remove unused GPIO bias data

Remove unused pull-up/down data from the r8a73a4 PFC code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4: Remove all GPIO enums
Magnus Damm [Tue, 26 Mar 2013 13:51:43 +0000 (22:51 +0900)]
ARM: shmobile: r8a73a4: Remove all GPIO enums

Function GPIOs are not used anymore, and all code use the GPIO numbers
directly. Remove the GPIOs enumeration.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: Remove function GPIOs
Magnus Damm [Tue, 26 Mar 2013 13:51:34 +0000 (22:51 +0900)]
sh-pfc: r8a73a4: Remove function GPIOs

All r8a73a4 platforms use the pinctrl API to control pin functions.
Function GPIOs are no longer needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4: Remove IRQC function GPIOs
Magnus Damm [Tue, 26 Mar 2013 13:51:24 +0000 (22:51 +0900)]
ARM: shmobile: r8a73a4: Remove IRQC function GPIOs

Remove IRQ pin function GPIOs that have been deprecated by the pinctrl
API.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4: Remove SCIF function GPIOs
Magnus Damm [Tue, 26 Mar 2013 13:51:15 +0000 (22:51 +0900)]
ARM: shmobile: r8a73a4: Remove SCIF function GPIOs

Remove SCIF function GPIOs that have been deprecated by the pinctrl API.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: Remove IRQC function GPIOS
Magnus Damm [Tue, 26 Mar 2013 13:51:05 +0000 (22:51 +0900)]
sh-pfc: r8a73a4: Remove IRQC function GPIOS

The r8a73a4 board support will use the pinctrl API to control the
external IRQ pins so remove the unused function GPIOS.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: Remove SCIF function GPIOS
Magnus Damm [Tue, 26 Mar 2013 13:50:55 +0000 (22:50 +0900)]
sh-pfc: r8a73a4: Remove SCIF function GPIOS

The r8a73a4 board support will use the pinctrl API to control the SCIF
pins, remove the corresponding unused function GPIOS.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: Add IRQC pin groups and functions
Magnus Damm [Wed, 27 Mar 2013 15:16:37 +0000 (00:16 +0900)]
sh-pfc: r8a73a4: Add IRQC pin groups and functions

V2 of PINCTRL support for r8a73a4 IRQC hardware
and in particular the external pins IRQ0 -> IRQ57.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: Add SCIF pin groups and functions
Magnus Damm [Tue, 26 Mar 2013 13:50:36 +0000 (22:50 +0900)]
sh-pfc: r8a73a4: Add SCIF pin groups and functions

Add PINCTRL support for r8a73a4 SCIF ports SCIFA0->SCIFA1 and
SCIFB0->SCIFB3.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: Add bias (pull-up/down) pinconf support
Magnus Damm [Tue, 26 Mar 2013 13:50:27 +0000 (22:50 +0900)]
sh-pfc: r8a73a4: Add bias (pull-up/down) pinconf support

Implement pull-up/down support for r8a73a4 similar to the implementation
for sh73a0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: GPIO IRQ support
Magnus Damm [Tue, 26 Mar 2013 13:50:09 +0000 (22:50 +0900)]
sh-pfc: r8a73a4: GPIO IRQ support

V2 of code to add GPIO -> IRQ mappings to the
PFC table for the r8a73a4 SoC. Requires the IRQs
to be mapped at a fixed location in Linux IRQ
space. The actual IRQs are not handled by the
PFC, instead IRQC is used on r8a73a4.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a73a4: Support sparse GPIO numbers
Magnus Damm [Tue, 26 Mar 2013 13:49:59 +0000 (22:49 +0900)]
sh-pfc: r8a73a4: Support sparse GPIO numbers

The r8a73a4 SoC has sparse GPIO numbers. Declare ranges for pin numbers
in the PFC SoC data. Pin numbers shall be used with the GPIO API from
this point on.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Add r8a73a4 pinmux support
Magnus Damm [Tue, 26 Mar 2013 13:49:49 +0000 (22:49 +0900)]
sh-pfc: Add r8a73a4 pinmux support

Add initial PFC support for the r8a73a4 SoC.

At this point only GPIO interface is supported, move to newer interfaces
planned as incremental changes.

Original authors are Morimoto-san with help from Yoshii-san, thanks to
them for the heavy lifting. Adjusted by Magnus to work together with
updated code in drivers/pinctrl.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: Split DU input and output pixel clocks
Laurent Pinchart [Wed, 27 Mar 2013 10:06:37 +0000 (11:06 +0100)]
sh-pfc: r8a7779: Split DU input and output pixel clocks

The output pixel clocks can be used without the input pixel clocks.
Split them in different groups.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: Remove GPIO data
Laurent Pinchart [Sun, 10 Mar 2013 03:02:15 +0000 (04:02 +0100)]
sh-pfc: r8a7779: Remove GPIO data

GPIOs are now handled by a separate driver, remove GPIO data from the
SoC information structure.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7779: Register GPIO devices
Laurent Pinchart [Sun, 10 Mar 2013 02:31:51 +0000 (03:31 +0100)]
ARM: shmobile: r8a7779: Register GPIO devices

Move GPIOs handling from the PFC device to separate GPIO devices.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Configure pins as GPIOs at request time when handled externally
Laurent Pinchart [Sun, 10 Mar 2013 16:30:25 +0000 (17:30 +0100)]
sh-pfc: Configure pins as GPIOs at request time when handled externally

When a GPIO is handled by a separate driver the pinmux
gpio_set_direction() handler won't be called. The pin mux type then need
to be configured to GPIO at request time.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Skip gpiochip registration when no GPIO resource is found
Laurent Pinchart [Sun, 10 Mar 2013 02:19:44 +0000 (03:19 +0100)]
sh-pfc: Skip gpiochip registration when no GPIO resource is found

Boards/platforms that register dedicated GPIO devices will not supply a
memory resource for GPIOs. Try to locate the GPIO memory resource at
initialization time, and skip registration of the gpiochip if the
resource can't be found.

This is a temporary modification to ease the transition to separate GPIO
drivers. It should be reverted when all boards and platforms will have
been moved.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Make GPIO support optional
Laurent Pinchart [Sun, 10 Mar 2013 02:19:44 +0000 (03:19 +0100)]
sh-pfc: Make GPIO support optional

When implemented as a separate IP block, GPIOs should be handled by a
separate driver. To make this possible GPIO support needs to be optional
in the sh-pfc driver.

If no GPIO data registers are supplied in the SoC information structure
skip registration of the gpiochip.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Make function GPIOs support optional
Laurent Pinchart [Thu, 7 Mar 2013 13:31:57 +0000 (14:31 +0100)]
sh-pfc: Make function GPIOs support optional

The target is to get rid of function GPIOs completely. To reach this,
make function GPIOs support optional by skipping the function GPIO chip
registration if no function GPIOS are defined in SoC data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: marzen: Add GPIO LEDs
Laurent Pinchart [Sun, 10 Mar 2013 02:43:32 +0000 (03:43 +0100)]
ARM: shmobile: marzen: Add GPIO LEDs

The board has 3 LEDs connected to GPIOs. Add a led-gpio device to
support them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agogpio-rcar: Add pinctrl support
Laurent Pinchart [Sun, 10 Mar 2013 02:27:00 +0000 (03:27 +0100)]
gpio-rcar: Add pinctrl support

Register the GPIO pin range, and request and free GPIO pins using the
pinctrl API.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agogpio: Renesas R-Car GPIO driver V3
Magnus Damm [Wed, 13 Mar 2013 11:32:13 +0000 (20:32 +0900)]
gpio: Renesas R-Car GPIO driver V3

This patch is V3 of a GPIO driver for the R-Car series of
SoCs from Renesas. This driver is designed to be reusable
between multiple SoCs that share the same basic building block,
but so far it has only been used on R-Car H1 (r8a7779).

Each driver instance handles 32 GPIOs with individually
maskable IRQs. The driver operates on a single I/O memory
range and the 32 GPIOs are hooked up a single interrupt.

In the case of R-Car H1 either external IRQ pins or GPIOs
with interrupts can be used for on-board interupts. For
external IRQs 4 pins are supported, and in the case of GPIO
there are 202 GPIOS as 202 interrupts hooked up via 6 driver
instances and to the GIC and the Cortex-A9 Quad.

At this point this driver is interfacing as a regular
platform device driver. In the future DT support will be
submitted as an incremental feature patch.

Signed-off-by: Magnus Damm <damm@opensource.se>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoirqchip: vic: add include of linux/irq.h
Olof Johansson [Tue, 2 Apr 2013 22:07:37 +0000 (15:07 -0700)]
irqchip: vic: add include of linux/irq.h

With the include of <asm/mach/irq.h> removed, the implicit include of
linux/irq.h also disappeared. Add it back.

Signed-off-by: Olof Johansson <olof@lixom.net>
11 years agoARM: shmobile: r8a7779: Remove all GPIOs
Laurent Pinchart [Thu, 7 Mar 2013 13:44:27 +0000 (14:44 +0100)]
ARM: shmobile: r8a7779: Remove all GPIOs

Function GPIOs are not used anymore, and all code use the GPIO numbers
directly. Remove the GPIOs enumeration.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: Don't use GPIO enum entries
Laurent Pinchart [Thu, 7 Mar 2013 22:47:18 +0000 (23:47 +0100)]
sh-pfc: r8a7779: Don't use GPIO enum entries

Refactor the GPIO macro magic to use GPIO numbers directly instead of
the GPIO_GP_x_y enum entries. This will allow removing the GPIO enum
entries from the mach/r8a7779.h header.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: r8a7779: Remove function GPIOs
Laurent Pinchart [Thu, 7 Mar 2013 13:33:32 +0000 (14:33 +0100)]
sh-pfc: r8a7779: Remove function GPIOs

All r8a7779 platforms use the pinctrl API to control functions. Function
GPIOs are unused and unneeded, remove them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh: sh7269: Fix compilation by adding missing includes
Laurent Pinchart [Tue, 26 Mar 2013 01:07:51 +0000 (02:07 +0100)]
sh: sh7269: Fix compilation by adding missing includes

struct resource is defined in linux/ioport.h. Include it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agosh-pfc: Fix compiler warning when BUG()
Laurent Pinchart [Tue, 26 Mar 2013 00:44:52 +0000 (01:44 +0100)]
sh-pfc: Fix compiler warning when BUG()

The sh_pfc_phys_to_virt() function ends with a BUG() statement without a
return. When CONFIG_BUG isn't set the function will thus have no return
value. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoMerge branch 'soc' into pinmux-base
Simon Horman [Tue, 2 Apr 2013 02:08:34 +0000 (11:08 +0900)]
Merge branch 'soc' into pinmux-base

Conflicts:
drivers/pinctrl/sh-pfc/pfc-r8a7740.c

This merge is to provide r8a73a4 SoC files, which are added in the
soc branch and depended on by r8a73a4 pfc-changes which are to
be added to the pinmux branch.

11 years agoARM: shmobile: r8a7790 SoC 64-bit DT support
Takashi Yoshii [Fri, 29 Mar 2013 07:49:17 +0000 (16:49 +0900)]
ARM: shmobile: r8a7790 SoC 64-bit DT support

The r8a7790 SoC supports LPAE and has memory window up to
0x2ffffffff. Convert to 64-bit addresses by enlarging
#addr-cells and #size-cells to 2.

Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4 SoC 64-bit DT support
Takashi Yoshii [Fri, 29 Mar 2013 07:45:56 +0000 (16:45 +0900)]
ARM: shmobile: r8a73a4 SoC 64-bit DT support

The r8a73a4 SoC supports LPAE and has memory window up to
0x2ffffffff. Convert to 64-bit addresses by enlarging
#addr-cells and #size-cells to 2.

Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7790 PFC support
Magnus Damm [Wed, 27 Mar 2013 15:50:03 +0000 (00:50 +0900)]
ARM: shmobile: r8a7790 PFC support

Add a platform device for the r8a7790 PFC.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7790 IRQC support
Magnus Damm [Wed, 27 Mar 2013 15:49:54 +0000 (00:49 +0900)]
ARM: shmobile: r8a7790 IRQC support

Add IRQC interrupt controller support to r8a7790 by
hooking up a single IRQC instances to handle 4 external
IRQ signals. The IRQC controller is tied to SPIs of
the GIC. On r8a7790 the external IRQ pins routing is
handled by the PFC which is excluded from this patch.

Both platform devices and DT devices are added in this
patch. The platform device versions are used to provide
a static interrupt map configuration for board code
written in C.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7790 SCIF support
Magnus Damm [Wed, 27 Mar 2013 15:49:44 +0000 (00:49 +0900)]
ARM: shmobile: r8a7790 SCIF support

Add SCIF serial port support to the r8a7790 SoC by
adding platform devices for SCIFA0 -> SCIFA2 as well
as SCIFB0 -> SCIFB2 and SCIF0 -> SCIF1 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: Initial r8a7790 SoC support
Magnus Damm [Wed, 27 Mar 2013 15:49:34 +0000 (00:49 +0900)]
ARM: shmobile: Initial r8a7790 SoC support

Add initial support for the r8a7790 SoC including:
 - Single Cortex-A15 CPU Core
 - GIC
 - Architecture timer

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7779: move global functions to r8a7779.h
Kuninori Morimoto [Thu, 28 Mar 2013 08:49:27 +0000 (01:49 -0700)]
ARM: shmobile: r8a7779: move global functions to r8a7779.h

There is no reason each CPU's own function has to exist in common.h.
r8a7779_xxx() go to r8a7779.h

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7740: move global functions to r8a7740.h
Kuninori Morimoto [Thu, 28 Mar 2013 08:49:15 +0000 (01:49 -0700)]
ARM: shmobile: r8a7740: move global functions to r8a7740.h

There is no reason each CPU's own function has to exist in common.h.
r8a7740_xxx() go to r8a7740.h

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh73a0: move global functions to sh73a0.h
Kuninori Morimoto [Thu, 28 Mar 2013 08:48:30 +0000 (01:48 -0700)]
ARM: shmobile: sh73a0: move global functions to sh73a0.h

There is no reason each CPU's own function has to exist in common.h.
sh73a0_xxx() go to sh73a0.h

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh7372: move global functions to sh7372.h
Kuninori Morimoto [Thu, 28 Mar 2013 08:48:19 +0000 (01:48 -0700)]
ARM: shmobile: sh7372: move global functions to sh7372.h

There is no reason each CPU's own function has to exist in common.h.
sh7372_xxx() go to sh7372.h

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7779: remove DIV4 clocks and use fixed ratio clock
Kuninori Morimoto [Wed, 27 Mar 2013 07:57:38 +0000 (00:57 -0700)]
ARM: shmobile: r8a7779: remove DIV4 clocks and use fixed ratio clock

R-Car H1 has many clocks, and it is possible to read/use clock ratio
of these clocks from FRQMRx as DIV4 clocks.
But, these ratio are fixed value and these are decided
by MD pin status.
This means that we can use fixed ratio clock via MD pin status,
instead of DIV4 clocks.

This patch reads MD pin status, and sets PLLA clock (= root clock),
and used fixed ratio clock for other clocks.
It was tesed on marzen board.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7740: use fixed ratio clock
Kuninori Morimoto [Wed, 27 Mar 2013 07:56:57 +0000 (00:56 -0700)]
ARM: shmobile: r8a7740: use fixed ratio clock

Current clock-r8a7740 is using own implement
for each divX clocks.
This patch switches to use fixed ratio clock,
and was tesed on armadillo board.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7740: tidyup comment/implementation mismatch
Kuninori Morimoto [Wed, 27 Mar 2013 07:56:40 +0000 (00:56 -0700)]
ARM: shmobile: r8a7740: tidyup comment/implementation mismatch

Current clock-r8a7740's DIV4/DIV6/MSTP implemented area and
its comment are mismatching.
This patch tidyup its comment/implementation area.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh73a0: use fixed ratio clock
Kuninori Morimoto [Wed, 27 Mar 2013 07:56:14 +0000 (00:56 -0700)]
ARM: shmobile: sh73a0: use fixed ratio clock

Current clock-sh73a0 is using own implement
for each divX clocks.
This patch switches to use fixed ratio clock,
and was tesed on kzm9g board.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh7372: use fixed ratio clock
Kuninori Morimoto [Wed, 27 Mar 2013 07:55:54 +0000 (00:55 -0700)]
ARM: shmobile: sh7372: use fixed ratio clock

Current clock-sh7372 is using own implement
for each divX clocks.
This patch switches to use fixed ratio clock,
and was tesed on mackerel board.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: add struct clk_ratio and fixed ratio clock macro
Kuninori Morimoto [Wed, 27 Mar 2013 07:55:41 +0000 (00:55 -0700)]
ARM: shmobile: add struct clk_ratio and fixed ratio clock macro

Renesas chip has many clocks inside,
and some of them are using fixed ratio via parent clock.
Current shmobile clock code is using own divX_recalc function
and divX_clk_ops.
This patch can reduce these code

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh7372: remove DIV4_ZT* clocks
Kuninori Morimoto [Wed, 27 Mar 2013 07:55:24 +0000 (00:55 -0700)]
ARM: shmobile: sh7372: remove DIV4_ZT* clocks

DIV4_ZT* clocks are for debugging and trace bus clock.
It is not necessary to control it from Linux/Software.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh73a0: remove DIV4_ZT* clocks
Kuninori Morimoto [Wed, 27 Mar 2013 07:55:07 +0000 (00:55 -0700)]
ARM: shmobile: sh73a0: remove DIV4_ZT* clocks

DIV4_ZT* clocks are for debugging and trace bus clock.
It is not necessary to control it from Linux/Software.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh73a0: add a TWD clock
Guennadi Liakhovetski [Thu, 7 Mar 2013 19:00:48 +0000 (20:00 +0100)]
ARM: shmobile: sh73a0: add a TWD clock

Add a TWD clock on sh73a0 for the smp_twd driver to properly update the
clock's frequency upon cpufreq events.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7740: Migrate from INTC to GIC
Bastian Hecht [Wed, 27 Mar 2013 13:54:04 +0000 (14:54 +0100)]
ARM: shmobile: r8a7740: Migrate from INTC to GIC

With the added capabilty of the intc_irqpin driver to handle shared
external IRQs, all prerequisites are fulfilled and we are ready to
migrate completely to GIC. This includes the following steps:

- Kconfig: select ARM_GIC and RENESAS_INTC_IRQPIN
- intc-r8a7740: Throw out all legacy INTC code and init the GIC. We need
   to mask out all shared IRQs as it is needed by the
shared intc_irqpin driver.
- setup-r8a7740: Add 4 irqpin devices to handle external IRQs and update
all IRQ numbers to point to the GIC SPI.
- board-armadillo: Update all IRQ numbers to point to the GIC SPI.
- pfc-r8a7740: Update all IRQ numbers of the GPIOs to point to the GIC
SPI.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4: add thermal driver support
Kuninori Morimoto [Tue, 26 Mar 2013 06:18:15 +0000 (23:18 -0700)]
ARM: shmobile: r8a73a4: add thermal driver support

You can get current thermal by
> cat /sys/class/thermal/thermal_zone?/temp

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: Disallow PINCTRL without GPIOLIB
Magnus Damm [Mon, 18 Mar 2013 13:58:18 +0000 (22:58 +0900)]
ARM: shmobile: Disallow PINCTRL without GPIOLIB

Modify mach-shmobile to only select PINCTRL in case of
ARCH_WANT_OPTIONAL_GPIOLIB is set.

This fixes a build error triggered when adding a new SoC
lacking GPIO software support (ARCH_WANT_OPTIONAL_GPIOLIB=n):

 CC      drivers/tty/vt/keyboard.o
In file included from drivers/pinctrl/core.c:30:0:
include/asm-generic/gpio.h: In function 'gpio_get_value_cansleep':
include/asm-generic/gpio.h:270:2: error: implicit declaration of function '__gpio_get_value'
include/asm-generic/gpio.h: In function 'gpio_set_value_cansleep':
include/asm-generic/gpio.h:276:2: error: implicit declaration of function '__gpio_set_value'
drivers/pinctrl/core.c: In function 'pinctrl_ready_for_gpio_range':
drivers/pinctrl/core.c:297:9: error: implicit declaration of function 'gpio_to_chip'
drivers/pinctrl/core.c:297:27: warning: initialization makes pointer from integer without a cast
drivers/pinctrl/core.c:304:45: error: dereferencing pointer to incomplete type
drivers/pinctrl/core.c:305:26: error: dereferencing pointer to incomplete type
drivers/pinctrl/core.c:305:39: error: dereferencing pointer to incomplete type
make[2]: *** [drivers/pinctrl/core.o] Error 1
make[1]: *** [drivers/pinctrl] Error 2
make[1]: *** Waiting for unfinished jobs....
  LD      drivers/sh/built-in.o

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh73a0: add irqpin DT nodes
Guennadi Liakhovetski [Thu, 21 Mar 2013 16:05:40 +0000 (17:05 +0100)]
ARM: shmobile: sh73a0: add irqpin DT nodes

Add DT nodes for the 4 irqpin interrupt controllers on sh73a0. We add them
to sh73a0.dtsi, which is also used by configurations, doing all their
device instantiation from board the .c code. We rely on the fact, that
such configurations don't instantiate devices from the device-tree.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a7778 SCIF support
Kuninori Morimoto [Thu, 21 Mar 2013 10:02:38 +0000 (03:02 -0700)]
ARM: shmobile: r8a7778 SCIF support

Add SCIF serial port support to the r8a7778 SoC by
adding platform devices together with clock bindings.
DT device description is excluded at this point since
such bindings are still under development.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: add R8A7778 basis support
Kuninori Morimoto [Thu, 21 Mar 2013 10:01:36 +0000 (03:01 -0700)]
ARM: shmobile: add R8A7778 basis support

Add initial support for the R8A7778 R-Car M1A SoC.
No static virtual mappings are used, all the components
make use of ioremap().
DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

It is based on v1.0 datasheet

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: sh73a0: wait for completion when kicking the clock
Guennadi Liakhovetski [Thu, 28 Feb 2013 12:21:58 +0000 (13:21 +0100)]
ARM: shmobile: sh73a0: wait for completion when kicking the clock

To reconfigure clocks, controlled by FRQCRA and FRQCRB, a kick bit has to
be set and to make sure the setting has taken effect, it has to be read
back repeatedly until it is cleared by the hardware. This patch adds the
waiting part, that was missing until now.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4 PFC support
Magnus Damm [Tue, 26 Mar 2013 01:34:52 +0000 (10:34 +0900)]
ARM: shmobile: r8a73a4 PFC support

Add a platform device for the r8a73a4 PFC.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4 IRQC support V2
Magnus Damm [Tue, 26 Mar 2013 01:34:42 +0000 (10:34 +0900)]
ARM: shmobile: r8a73a4 IRQC support V2

Add IRQC interrupt controller support to r8a73a4 by
hooking up two IRQC instances to handle 58 external
IRQ signals. There IRQC controllers are tied to SPIs
of the GIC. On r8a73a4 exact IRQ pin routing is handled
by the PFC which is excluded from this patch.

Both platform devices and DT devices are added in this
patch. The platform device versions are used to provide
a static interrupt map configuration for board code
written in C.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: r8a73a4 SCIF support V3
Magnus Damm [Tue, 26 Mar 2013 01:34:33 +0000 (10:34 +0900)]
ARM: shmobile: r8a73a4 SCIF support V3

V3 of SCIF serial port support for the r8a73a4 SoC.
This is done by adding platform devices for SCIFA0
-> SCIFA1 as well as SCIFB0 -> SCIFB3 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoARM: shmobile: Initial r8a73a4 SoC support V3
Magnus Damm [Tue, 26 Mar 2013 01:34:24 +0000 (10:34 +0900)]
ARM: shmobile: Initial r8a73a4 SoC support V3

V3 of initial support for the r8a73a4 SoC including:
 - Single Cortex-A15 CPU Core
 - GIC
 - Architecture timer

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
11 years agoMerge tag 'renesas-intc-external-irq2-for-v3.10' into soc-base
Simon Horman [Tue, 2 Apr 2013 01:55:57 +0000 (10:55 +0900)]
Merge tag 'renesas-intc-external-irq2-for-v3.10' into soc-base

Update for Renesas INTC External IRQ pin driver for v3.10

This adds support for shared interrupt lines to the
Renesas INTC External IRQ pin driver which has already
been queued up for v3.10 (tag renesas-intc-external-irq-for-v3.10).

The patch "irqchip: intc-irqpin: Add support for shared interrupt lines"
in renesas-intc-external-irq2-for-v3.10 is a dependency for
"ARM: shmobile: r8a7740: Migrate from INTC to GIC". That dependency is
the reason for this merge.

11 years agoLinux 3.9-rc5
Linus Torvalds [Sun, 31 Mar 2013 22:12:43 +0000 (15:12 -0700)]
Linux 3.9-rc5

11 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 31 Mar 2013 18:41:47 +0000 (11:41 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine fixes from Vinod Koul:
 "Two fixes for slave-dmaengine.

  The first one is for making slave_id value correct for dw_dmac and
  the other one fixes the endieness in DT parsing"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dw_dmac: adjust slave_id accordingly to request line base
  dmaengine: dw_dma: fix endianess for DT xlate function

11 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Sun, 31 Mar 2013 18:40:33 +0000 (11:40 -0700)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "For a some fixes for Kernel 3.9:
   - subsystem build fix when VIDEO_DEV=y, VIDEO_V4L2=m and I2C=m
   - compilation fix for arm multiarch preventing IR_RX51 to be selected
   - regression fix at bttv crop logic
   - s5p-mfc/m5mols/exynos: a few fixes for cameras on exynos hardware"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] [REGRESSION] bt8xx: Fix too large height in cropcap
  [media] fix compilation with both V4L2 and I2C as 'm'
  [media] m5mols: Fix bug in stream on handler
  [media] s5p-fimc: Do not attempt to disable not enabled media pipeline
  [media] s5p-mfc: Fix encoder control 15 issue
  [media] s5p-mfc: Fix frame skip bug
  [media] s5p-fimc: send valid m2m ctx to fimc_m2m_job_finish
  [media] exynos-gsc: send valid m2m ctx to gsc_m2m_job_finish
  [media] fimc-lite: Fix the variable type to avoid possible crash
  [media] fimc-lite: Initialize 'step' field in fimc_lite_ctrl structure
  [media] ir: IR_RX51 only works on OMAP2

11 years agoMerge tag 'for-linus-20130331' of git://git.kernel.dk/linux-block
Linus Torvalds [Sun, 31 Mar 2013 18:38:59 +0000 (11:38 -0700)]
Merge tag 'for-linus-20130331' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Alright, this time from 10K up in the air.

  Collection of fixes that have been queued up since the merge window
  opened, hence postponed until later in the cycle.  The pull request
  contains:

   - A bunch of fixes for the xen blk front/back driver.

   - A round of fixes for the new IBM RamSan driver, fixing various
     nasty issues.

   - Fixes for multiple drives from Wei Yongjun, bad handling of return
     values and wrong pointer math.

   - A fix for loop properly killing partitions when being detached."

* tag 'for-linus-20130331' of git://git.kernel.dk/linux-block: (25 commits)
  mg_disk: fix error return code in mg_probe()
  rsxx: remove unused variable
  rsxx: enable error return of rsxx_eeh_save_issued_dmas()
  block: removes dynamic allocation on stack
  Block: blk-flush: Fixed indent code style
  cciss: fix invalid use of sizeof in cciss_find_cfgtables()
  loop: cleanup partitions when detaching loop device
  loop: fix error return code in loop_add()
  mtip32xx: fix error return code in mtip_pci_probe()
  xen-blkfront: remove frame list from blk_shadow
  xen-blkfront: pre-allocate pages for requests
  xen-blkback: don't store dev_bus_addr
  xen-blkfront: switch from llist to list
  xen-blkback: fix foreach_grant_safe to handle empty lists
  xen-blkfront: replace kmalloc and then memcpy with kmemdup
  xen-blkback: fix dispatch_rw_block_io() error path
  rsxx: fix missing unlock on error return in rsxx_eeh_remap_dmas()
  Adding in EEH support to the IBM FlashSystem 70/80 device driver
  block: IBM RamSan 70/80 error message bug fix.
  block: IBM RamSan 70/80 branding changes.
  ...

11 years agoRevert "lockdep: check that no locks held at freeze time"
Paul Walmsley [Sun, 31 Mar 2013 00:04:40 +0000 (00:04 +0000)]
Revert "lockdep: check that no locks held at freeze time"

This reverts commit 6aa9707099c4b25700940eb3d016f16c4434360d.

Commit 6aa9707099c4 ("lockdep: check that no locks held at freeze time")
causes problems with NFS root filesystems.  The failures were noticed on
OMAP2 and 3 boards during kernel init:

  [ BUG: swapper/0/1 still has locks held! ]
  3.9.0-rc3-00344-ga937536 #1 Not tainted
  -------------------------------------
  1 lock held by swapper/0/1:
   #0:  (&type->s_umount_key#13/1){+.+.+.}, at: [<c011e84c>] sget+0x248/0x574

  stack backtrace:
    rpc_wait_bit_killable
    __wait_on_bit
    out_of_line_wait_on_bit
    __rpc_execute
    rpc_run_task
    rpc_call_sync
    nfs_proc_get_root
    nfs_get_root
    nfs_fs_mount_common
    nfs_try_mount
    nfs_fs_mount
    mount_fs
    vfs_kern_mount
    do_mount
    sys_mount
    do_mount_root
    mount_root
    prepare_namespace
    kernel_init_freeable
    kernel_init

Although the rootfs mounts, the system is unstable.  Here's a transcript
from a PM test:

  http://www.pwsan.com/omap/testlogs/test_v3.9-rc3/20130317194234/pm/37xxevm/37xxevm_log.txt

Here's what the test log should look like:

  http://www.pwsan.com/omap/testlogs/test_v3.8/20130218214403/pm/37xxevm/37xxevm_log.txt

Mailing list discussion is here:

  http://lkml.org/lkml/2013/3/4/221

Deal with this for v3.9 by reverting the problem commit, until folks can
figure out the right long-term course of action.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Mandeep Singh Baines <msb@chromium.org>
Cc: Jeff Layton <jlayton@redhat.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: <maciej.rutecki@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ben Chan <benchan@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Linus Torvalds [Sat, 30 Mar 2013 20:13:05 +0000 (13:13 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending

Pull SCSI target fixes from Nicholas Bellinger:
 "This includes the bug-fix for a >= v3.8-rc1 regression specific to
  iscsi-target persistent reservation conflict handling (CC'ed to
  stable), and a tcm_vhost patch to drop VIRTIO_RING_F_EVENT_IDX usage
  so that in-flight qemu vhost-scsi-pci device code can detect the
  proper vhost feature bits.

  Also, there are two more tcm_vhost patches still being discussed by
  MST and Asias for v3.9 that will be required for the in-flight qemu
  vhost-scsi-pci device patch to function properly, and that should
  (hopefully) be the last target fixes for this round."

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: Fix RESERVATION_CONFLICT status regression for iscsi-target special case
  tcm_vhost: Avoid VIRTIO_RING_F_EVENT_IDX feature bit

11 years agodw_dmac: adjust slave_id accordingly to request line base
Andy Shevchenko [Wed, 20 Feb 2013 11:52:17 +0000 (13:52 +0200)]
dw_dmac: adjust slave_id accordingly to request line base

On some hardware configurations we have got the request line with the offset.
The patch introduces convert_slave_id() helper for that cases. The request line
base is came from the driver data provided by the platform_device_id table.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agodmaengine: dw_dma: fix endianess for DT xlate function
Arnd Bergmann [Sun, 3 Mar 2013 20:51:28 +0000 (20:51 +0000)]
dmaengine: dw_dma: fix endianess for DT xlate function

As reported by Wu Fengguang's build robot tracking sparse warnings, the
dma_spec arguments in the dw_dma_xlate are already byte swapped on
little-endian platforms and must not get swapped again. This code is
currently not used anywhere, but will be used in Linux 3.10 when the
ARM SPEAr platform starts using the generic DMA DT binding.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
11 years agoPNP: List Rafael Wysocki as a maintainer
Rafael J. Wysocki [Fri, 29 Mar 2013 21:59:53 +0000 (22:59 +0100)]
PNP: List Rafael Wysocki as a maintainer

The Adam Belay's e-mail address in MAINTAINERS under PNP SUPPORT
is not valid any more and I started to maintain that code in the
meantime as a matter of fact, so list myself as a maintainer of it
along with Bjorn and remove the Adam's entry from it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Fri, 29 Mar 2013 18:47:43 +0000 (11:47 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull ceph fix from Sage Weil:
 "This fixes a regression introduced during the last merge window when
  mapping non-existent images."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: don't zero-fill non-image object requests

11 years agorbd: don't zero-fill non-image object requests
Alex Elder [Wed, 27 Mar 2013 14:16:30 +0000 (09:16 -0500)]
rbd: don't zero-fill non-image object requests

A result of ENOENT from a read request for an object that's part of
an rbd image indicates that there is a hole in that portion of the
image.  Similarly, a short read for such an object indicates that
the remainder of the read should be interpreted a full read with
zeros filling out the end of the request.

This behavior is not correct for objects that are not backing rbd
image data.  Currently rbd_img_obj_request_callback() assumes it
should be done for all objects.

Change rbd_img_obj_request_callback() so it only does this zeroing
for image objects.  Encapsulate that special handling in its own
function.  Add an assertion that the image object request is a bio
request, since we assume that (and we currently don't support any
other types).

This resolves a problem identified here:
    http://tracker.ceph.com/issues/4559

The regression was introduced by bf0d5f503dc11d6314c0503591d258d60ee9c944.

Reported-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-off-by: Sage Weil <sage@inktank.com>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Fri, 29 Mar 2013 18:13:25 +0000 (11:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "We've had a busy two weeks of bug fixing.  The biggest patches in here
  are some long standing early-enospc problems (Josef) and a very old
  race where compression and mmap combine forces to lose writes (me).
  I'm fairly sure the mmap bug goes all the way back to the introduction
  of the compression code, which is proof that fsx doesn't trigger every
  possible mmap corner after all.

  I'm sure you'll notice one of these is from this morning, it's a small
  and isolated use-after-free fix in our scrub error reporting.  I
  double checked it here."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: don't drop path when printing out tree errors in scrub
  Btrfs: fix wrong return value of btrfs_lookup_csum()
  Btrfs: fix wrong reservation of csums
  Btrfs: fix double free in the btrfs_qgroup_account_ref()
  Btrfs: limit the global reserve to 512mb
  Btrfs: hold the ordered operations mutex when waiting on ordered extents
  Btrfs: fix space accounting for unlink and rename
  Btrfs: fix space leak when we fail to reserve metadata space
  Btrfs: fix EIO from btrfs send in is_extent_unchanged for punched holes
  Btrfs: fix race between mmap writes and compression
  Btrfs: fix memory leak in btrfs_create_tree()
  Btrfs: fix locking on ROOT_REPLACE operations in tree mod log
  Btrfs: fix missing qgroup reservation before fallocating
  Btrfs: handle a bogus chunk tree nicely
  Btrfs: update to use fs_state bit

11 years agoia64 idle: delete stale (*idle)() function pointer
Len Brown [Fri, 29 Mar 2013 18:02:30 +0000 (11:02 -0700)]
ia64 idle: delete stale (*idle)() function pointer

Commit 3e7fc708eb41 ("ia64 idle: delete pm_idle") in 3.9-rc1 didn't
finish the job, leaving an un-initialized reference to (*idle)().

[ Haven't seen a crash from this - but seems like we are just being
  lucky that "idle" is zero so it does get initialized before we jump to
  randomland  - Len ]

Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge branch 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Linus Torvalds [Fri, 29 Mar 2013 18:00:43 +0000 (11:00 -0700)]
Merge branch 'for-curr' of git://git./linux/kernel/git/vgupta/arc

Pull arc architecture fixes from Vineet Gupta:
 "This includes fix for a serious bug in DMA mapping API, make
  allyesconfig wreckage, removal of bogus email-list placeholder in
  MAINTAINERS, a typo in ptrace helper code and last remaining changes
  for syscall ABI v3 which we are finally starting to transition-to
  internally.

  The request is late than I intended to - but I was held up with
  debugging a timer link list corruption, for which a proposed fix to
  generic timer code was sent out to lkml/tglx earlier today."

* 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: Fix the typo in event identifier flags used by ptrace
  arc: fix dma_address assignment during dma_map_sg()
  ARC: Remove SET_PERSONALITY (tracks cross-arch change)
  ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI
  ARC: ABIv3: Print the correct ABI ver
  ARC: make allyesconfig build breakages
  ARC: MAINTAINERS update for ARC

11 years agoBtrfs: don't drop path when printing out tree errors in scrub
Josef Bacik [Fri, 29 Mar 2013 14:09:34 +0000 (08:09 -0600)]
Btrfs: don't drop path when printing out tree errors in scrub

A user reported a panic where we were panicing somewhere in
tree_backref_for_extent from scrub_print_warning.  He only captured the trace
but looking at scrub_print_warning we drop the path right before we mess with
the extent buffer to print out a bunch of stuff, which isn't right.  So fix this
by dropping the path after we use the eb if we need to.  Thanks,

Cc: stable@vger.kernel.org
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>