- 01 Nov, 2012 31 commits
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Lee Jones authored
The Device Tree machine description for the ux5x0 was moved recently and as a consequence missed the addition of SMP operations. Without this patch SMP doesn't work and only one CPU is present after booting. Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org>
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Lee Jones authored
It is the intention to convert the MMC voltage changing from GPIO flipping to using a proper GPIO regulator interface. A prerequisite of that is to enable the GPIO regulator functionality. As this affects all ux5x0 based boards we'll do it here instead of in the Kconfigs. Acked-by:
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Lee Jones authored
On boot the Nomadik GPIO controller complains that an IRQ can't be configured as active high level-sensitive, so this patch converts it to be low-to-high edge triggered instead. Acked-by:
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Lee Jones authored
There is a very simple mechanism to change and SDI's voltage which consists of toggling some GPIOs. This scenario can be better handled if we convert it to a GPIO regulator. This patch provides one which can be read from Device Tree. Acked-by:
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Lee Jones authored
So far, each ST-Ericsson board supported by Device Tree has been similar enough to run though a single DT_MACHINE_INIT call. On the back of that it has been suggested that we should reduce the number of compatible strings in our dt_compat structure. After subsequent discussion with Arnd Bergmann the conclusion was to list entries by platform as opposed to by board. The other suggestion was to use a single string which would cover all supported platforms, but any wildcard entries would include unsupported chipsets, such as the u5500 and potential new chips which no not yet have DT functionality. Hence, the best solution which encompasses all supported platforms, but no unsupported ones was to list the currently enabled four chipsets; u8500, u8540, u9500 and u9540 instead. Acked-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
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Lee Jones authored
The u8500 and u9540 DT_MACHINE_START calls are almost identical at the moment, referencing exactly the same function pointers. Until this changes we may as well convert the original one to be more generic and use that instead. Acked-by:
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Lee Jones authored
When enabling ST-Ericsson's ccu9540 development board the board's full name has not been used. This patch adapts all references of the board's short name to how it should be referenced. Reviewed-by:
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Lee Jones authored
The u9540 supports 3 MMC devices. This patch enables two of them and updates the configuration of the already enabled SDI4 port. Acked-by:
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Lee Jones authored
Here we add the device node for the SDI4 (MMC) port to the u9540 Device Tree source file. This will allow successful probing of the internal MMC storage device when booting with DT enabled. Acked-by:
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Lee Jones authored
Add the 3 UART nodes required to enable serial ports on the u9540. Acked-by:
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Lee Jones authored
First level board support for the u9540. Acked-by:
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Lee Jones authored
This patch sees the creation of a sparse Device Tree file for ST-Ericsson's latest development board supporting the latest dual-core Cortex-a9 u9540 SoC. Acked-by:
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Lee Jones authored
'st-ericsson,u8500' is too much of a broad name to be used for any of the supported development boards supported by ST-Ericsson. As such it was never used. It has no place to remain in the board compatible list, hence why it's being removed. Acked-by:
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Lee Jones authored
This patch allows the STMPE keypad driver to be successfully probed and initialised during a Device Tree enabled boot sequence. It contains all of the required properties needed to setup and map each key on the 6x3 keypad located on the ST User Interface Board. Acked-by:
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Lee Jones authored
Here we apply the STMPE Multi-Functional Device's node to the ST User Interface Board Device Tree file. It includes all of the properties required for correct device initialsation. Acked-by:
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Lee Jones authored
The regulator_has_full_constraints() call is not required if we are booting with Device Tree as it's assumed in this case. Acked-by:
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Lee Jones authored
It is possible to connect a BU21013 Touch Screen to all version of the HREF which support the ST-UIB. This patch applies all the necessary settings to the pre-v60 and v60+ HREF Device Trees. Acked-by:
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Lee Jones authored
As there will be a Device Tree created for the UIBs, there is no need to call the UIB initiation functions. Each device will be detailed and registered from the Device Tree instead. Acked-by:
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Lee Jones authored
This is a skeleton creation which will be populated with the devices found on one of ST-Ericsson's (UIB) User Interface Board. Acked-by:
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Lee Jones authored
Here we apply required documentation for the Rohm BU21013 Touch Screen driver which describe available properties and how to use them. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: linux-input@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org Acked-by:
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Lee Jones authored
We're currently carrying two 'struct bu21013_platform_device's which are identical for no apparent reason. Here we remove the extra burden and apply the same information to the two different instances of the bu21012_tp driver registration. Acked-by:
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Lee Jones authored
To aid the kernel in its effort to move to DT only booting, we're transplanting all Device Tree related code to cpu-db8500 which will remain persistent throughout the transition. This change paths the way for complete removal of board-mop500, which will be done once the all DMA settings are moved into the respective DT source files. Acked-by:
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Lee Jones authored
Most devices have now been successfully DT:ed and each supported platform has its own Device Tree source file. Hence the majority of the platform specific device registration calls can now be successfully removed. Acked-by:
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Lee Jones authored
Here we ensure the SFH7741 Proximity Sensor is registered through gpio-keys when booting with Device Tree enabled. Acked-by:
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Lee Jones authored
In ux500 platform code we currently support a number of devices. Two of these devices are fairly similar, but have key differences. Early (pre-v60) HREFs and the more up-to-date versions (v60+), and they both need to be supported by Device Tree. Here we apply a DT source file for the earlier versions. Acked-by:
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Lee Jones authored
There are two main versions of the ST-Ericsson hardware reference board, each with subtle differences. These versions are described in current platform data as 'mop500' for HREF v1.1 & v2.0 and 'hrefv60+' for latter incarnations. However, the boards have much in common, so this patch creates a .dtsi (Device Tree Source Include) file which describes the similarities between the two boards and individual 'hrefprev60' and 'hrefv60plus' .dts files which depict the differences. Acked-by:
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Lee Jones authored
Snowball's external SD/MMC slot is only capable of 4 bit data transfer, not 8 bits as previously thought. This is a simple fixup moving to the correct settings. Acked-by:
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Lee Jones authored
Here we add the Device Tree nodes which are required to successfully probe the MMCI driver which will enable the four cards available on ST-Ericsson's HREF hardware development platform. Acked-by:
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Lee Jones authored
In the DB8500 Reference Manual SDI devices are described as being part of peripheral blocks. This is more in line with how these devices are actually represented in hardware, so here we detail which peripheral block each of the SDI devices belong in the node name. Requested-by:
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Lee Jones authored
An earlier change prevented User Interface Boards (UIBs) from being initialised on boards which did not support them. This change had the undesired effect of reordering the UIB initialisation calls with I2C registration. Here we ensure UIBs are only setup after all required infrastructure is already in place. Acked-by:
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Lee Jones authored
Regulator supply names should be allocated by board rather than per SoC, as the same SoC could be wired differently on varying hardware. Here we push all regulator-name allocation out to the dbx5x0 subordinate board files; HREF and Snowball. Requested-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by:
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- 28 Oct, 2012 7 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktestLinus Torvalds authored
Pull ktest confusion fix from Steven Rostedt: "With the v3.7-rc2 kernel, the network cards on my target boxes were not being brought up. I found that the modules for the network was not being installed. This was due to the config CONFIG_MODULES_USE_ELF_RELA that came before CONFIG_MODULES, and confused ktest in thinking that CONFIG_MODULES=y was not found. Ktest needs to test all configs and not just stop if something starts with CONFIG_MODULES." * tag 'ktest-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/miscLinus Torvalds authored
Pull minor spi MXS fixes from Mark Brown: "These fixes are both pretty minor ones and are driver local." * tag 'spi-mxs' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc: spi: mxs: Terminate DMA in case of DMA timeout spi: mxs: Assign message status after transfer finished
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull arm-soc fixes from Arnd Bergmann: "Bug fixes for a number of ARM platforms, mostly OMAP, imx and at91. These come a little later than I had hoped but unfortunately we had a few of these patches cause regressions themselves and had to work out how to deal with those in the meantime." * tag 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits) Revert "ARM i.MX25: Fix PWM per clock lookups" ARM: versatile: fix versatile_defconfig ARM: mvebu: update defconfig with 3.7 changes ARM: at91: fix at91x40 build ARM: socfpga: Fix socfpga compilation with early_printk() enabled ARM: SPEAr: Remove unused empty files MAINTAINERS: Add arm-soc tree entry ARM: dts: mxs: add the "clock-names" for gpmi-nand ARM: ux500: Correct SDI5 address and add some format changes ARM: ux500: Specify AMBA Primecell IDs for Nomadik I2C in DT ARM: ux500: Fix build error relating to IRQCHIP_SKIP_SET_WAKE ARM: at91: drop duplicated config SOC_AT91SAM9 entry ARM: at91/i2c: change id to let i2c-at91 work ARM: at91/i2c: change id to let i2c-gpio work ARM: at91/dts: at91sam9g20ek_common: Fix typos in buttons labels. ARM: at91: fix external interrupt specification in board code ARM: at91: fix external interrupts in non-DT case ARM: at91: at91sam9g10: fix SOC type detection ARM: at91/tc: fix typo in the DT document ARM: AM33XX: Fix configuration of dmtimer parent clock by dmtimer driverDate:Wed, 17 Oct 2012 13:55:55 -0500 ...
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Mikulas Patocka authored
Functions generic_file_splice_read and generic_file_splice_write access the pagecache directly. For block devices these functions must be locked so that block size is not changed while they are in progress. This patch is an additional fix for commit b87570f5 ("Fix a crash when block device is read and block size is changed at the same time") that locked aio_read, aio_write and mmap against block size change. Signed-off-by:
Mikulas Patocka <mpatocka@redhat.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Mikulas Patocka authored
Use rcu_read_lock_sched / rcu_read_unlock_sched / synchronize_sched instead of rcu_read_lock / rcu_read_unlock / synchronize_rcu. This is an optimization. The RCU-protected region is very small, so there will be no latency problems if we disable preempt in this region. So we use rcu_read_lock_sched / rcu_read_unlock_sched that translates to preempt_disable / preempt_disable. It is smaller (and supposedly faster) than preemptible rcu_read_lock / rcu_read_unlock. Signed-off-by:
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Mikulas Patocka authored
This patch introduces new barrier pair light_mb() and heavy_mb() for percpu rw semaphores. This patch fixes a bug in percpu-rw-semaphores where a barrier was missing in percpu_up_write. This patch improves performance on the read path of percpu-rw-semaphores: on non-x86 cpus, there was a smp_mb() in percpu_up_read. This patch changes it to a compiler barrier and removes the "#if defined(X86) ..." condition. From: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by:
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- 27 Oct, 2012 2 commits
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Arnd Bergmann authored
This reverts commit 92063cee, it was applied prematurely, causing this build error for imx_v4_v5_defconfig: arch/arm/mach-imx/clk-imx25.c: In function 'mx25_clocks_init': arch/arm/mach-imx/clk-imx25.c:206:26: error: 'pwm_ipg_per' undeclared (first use in this function) arch/arm/mach-imx/clk-imx25.c:206:26: note: each undeclared identifier is reported only once for each function it appears in Sascha Hauer explains: > There are several gates missing in clk-imx25.c. I have a patch which > adds support for them and I seem to have missed that the above depends > on it. Signed-off-by:
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Arnd Bergmann authored
With the introduction of CONFIG_ARCH_MULTIPLATFORM, versatile is no longer the default platform, so we need to enable CONFIG_ARCH_VERSATILE explicitly in order for that to be selected rather than the multiplatform configuration. Signed-off-by:
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