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2009-03-13imxfb: add mx27 supportSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31: add dma and fb devicesValentin Longchamp
This adds the dma (ipu_dma) and fb devices for the mx31 for which drivers now are available. v2: merge the ipu and fb device in the same patch as suggested by Sascha Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31moboard: initial support for various baseboardsValentin Longchamp
This enables our mx31moboard to be used on the different baseboards that we are developping according to the application needs. There are not many differences between the boards for now, but when other peripherals are available for mx31 the differences are going to grow. v2: takes Sascha's comments into account Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31: add pin definition for LCDValentin Longchamp
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mxc: first set GPIO level, then switch direction to outputGuennadi Liakhovetski
Make sure not to create spurious pulses on GPIOs, when configuring them as output: first set required level, then switch direction. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13arm/imx: Kconfig beautificationHolger Schurig
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] mxc: add missing includeSascha Hauer
include devices.h from devices.c to avoid inconsistencies and to fix sparse warnings Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] Add Synertronixx scb9328 board supportSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] PCM037 Board: Add I2C supportSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] iommux mx3: Add pin definitions for I2CSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] mx1ads: add I2C supportSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] PCM038 board: Add I2C supportSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MX2: Add I2C devices / resourcesSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MX2: add pwm device/resourcesSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MXC: add pwm driver for i.MX SoCsSascha Hauer
This driver has been tested on MX27/MX31. It should work on MX1/MX1 aswell, but the actual setting of the PWM is missing so far. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13imxfb: add 18 bit supportSascha Hauer
v2: As pointed out by Hans J. Koch we have to claim we can do 24bit to make software like X work. We are lucky on i.MX that 18bit support has the necessary gaps in the fields to do so. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] pcm038: Add framebuffer supportSascha Hauer
Add framebuffer support for PCM038 Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13imxfb: add platform specific init/exit functionsSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MX2: Add FEC platform deviceSascha Hauer
The in kernel FEC driver has recently been ported to a platform driver. Add a platform_device for it and register it for pcm038 and mx27ads. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31ads: Initial support for Wolfson Microelectronics 1133-EV1 moduleMark Brown
The i.MX31ADS supports pluggable PMU modules, including the WM835x based Wolfson Microelectronics 1133-EV1. These boards provide power, audio, RTC and watchdiog services to the system. This patch adds initial support for those boards in I2C mode. Currently support is limited by the available support for the features of the i.MX31 in the mainline kernel. Some further work will be needed once other PMU modules are supported and once there is SPI support. Many of the regulator constraints will be sharable with other PMU boards. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13pcm037: use of new iomux implementationValentin Longchamp
This was only compilation tested. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31pdk: use of new iomux implementationValentin Longchamp
This was only compilation tested. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31ads: use of new iomux implementationValentin Longchamp
This was only compilation tested. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31moboard: use of new iomux implementationValentin Longchamp
This example takes advantage of the possibility to use tables of iomux configs. This is inspired from mx1-mx2 iomux code. It allows a better code readability. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31: rework of iomux supportValentin Longchamp
This new implemenatation avoids that two physical pins are claimed by the same driver (also with the the gpr hardware modes). The gpio kernel lib is also called when a capable gpio pin is assigned its gpio function. The mxc_iomux_mode function is still here for backward compatibility but should not be used anymore. V2: In the precendent revision, the iomux code was claiming a pin when its hardware mode was changed. This was uncorrect: when the hardware mode is changed, the pin must still be claimed through the iomux. In order to have a pin working in mode hw2, we must fist issue the mxc_iomux_set_gpr call and then the corresponding mxc_iomux_mode calls with the FUNC mode (usually done with mxc_iomux_setup_multiple_pins). The reverse calls must be done to fee the pins. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13remove unused static function gpio_fec_inactiveUwe Kleine-König
... from both mx27ads.c and pcm038.c Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Holger Schurig <hs4233@mail.mn-solutions.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Martin Fuzzey <mfuzzey@gmail.com>
2009-03-13fix warning "control reaches end of non-void function"Uwe Kleine-König
Add a return 0 analogous to uart_mxc_port[0-2]_exit. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Holger Schurig <hs4233@mail.mn-solutions.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Martin Fuzzey <mfuzzey@gmail.com>
2009-03-13mx31ads: Make unexported data staticMark Brown
Keeps sparse happy. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31ads: Fix build for missing mx31.hMark Brown
Several of the macros in mx31ads.h depend on mx31.h which is no longer included in quite so many standard headers as it once was. Include it directly so we can build. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13mx31: Add device definitions for the i.MX3x I2C controllersMark Brown
The i.MX I2C driver has not yet been merged into mainline but it is near to that and the device defintions don't depend directly on it so we can add the devices now. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13arm/imx21: Framebuffer support for i.MX21Holger Schurig
This patch mimicks what Martin wrote on the mailing list: * move arch/arm/mach-imx/include/mach/imxfb.h into arch/arm/mach-mxc/include/mach/imxfb.h * changes Kconfig so that CONFIG_FB_IMX is selectable * adds a platform device (copied from some pengutronix patches) Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13arm/imx21: clock support for i.MX21Holger Schurig
Based on code from "Martin Fuzzey" <mfuzzey@gmail.com> Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13arm/imx2x: split i.MX21/i.MX27 register definitionsHolger Schurig
* define new CONFIG_ARCH_MX21 (this one is currently mutually exclusive to CONFIG_ARCH_MX27, but this might change) * splits one header file. Memory definitions, interrupt sources, DMA channels are split into common part, i.MX27 specific and i.MX21 specific. * guard access to UART5/UART6, which don't exist on i.MX21 Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13arm/imx2x: removes a bunch of sparse-warningsHolger Schurig
Here are some of the warnings that get fixed by this: > 200 times: warning: cast adds address space to expression (<asn:2>) twelve times: warning: symbol 'xxx' was not declared. Should it be static two times: warning: symbol 'clock' shadows an earlier one five times: warning: incorrect type in initializer (different address spaces) Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MX27 Clock reworkSascha Hauer
This changes MX27 to use common clkdev. It also cleans up MX27 clock support to be more readable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MXC: add clkdev supportSascha Hauer
This patch only adds general clkdev support without actually switching any MXC architecture to clkdev. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MXC: remove _clk suffix from clock namesSascha Hauer
The context makes it clear already that these are clocks, so there's no need for such a suffix. This patch only changes the clocks actually used in the tree. The remaining clocks are renamed in the subsequent architecture specific patches. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MXC: rework timer/clock initialisationSascha Hauer
- rename mxc_clocks_init to architecture specific versions. This allows us to have more than one architecture compiled in. - call mxc_timer_init from clock initialisation instead from board code Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13[ARM] MXC: Use a single function for decoding a PLLSascha Hauer
We had 3 versions of this function in clock support for MX1/2/3 Use a single one instead. I picked the one from the MX3 as it seems to calculate more accurate as the other ones. Also, on MX27 and MX31 mfn can be negative, this hasn't been handled correctly on MX27 since now. This patch has been tested on MX27 and MX31 and produces the same clock frequencies for me. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13arm/imx21: add kbuild support for the Freescale i.MX21Holger Schurig
* adds Kconfig variables * specifies different physical address for i.MX21 because of the different memory layouts * disables support for UART5/UART6 in the i.MX serial driver (the i.MX21 doesn't have those modules) Based on code from "Martin Fuzzey" <mfuzzey@gmail.com> Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-13arm/imx2x: new IOMUX definitionsHolger Schurig
* removed iomux-mx1-mx2.h completely * distributes the former contents to four different files (iomux-mx1.h, iomux-mx21.h, iomux-mx27.h and the file iomux-mx2x.h, which is common to both i.MX21 and i.MX27). * adds all documented IOMUX definitions for i.MX21 and i.MX27 * fixes a few that were wrong (PD14_AOUT_FEC_CLR, PE16_AF_RTCK). * don't silenly include <linux/io.h> * and fixes all collateral damage from above Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-03-10i810: fix kernel crash fix when struct fb_var_screeninfo is suppliedSamuel CUELLA
Prevent the kernel from being crashed by a divide-by-zero operation when supplied an incorrectly filled 'struct fb_var_screeninfo' from userland. Previously i810_main.c:1005 (i810_check_params) was using the global 'yres' symbol previously defined at i810_main.c:145 as a module parameter value holder (i810_main.c:2174). If i810fb is compiled-in or if this param doesn't get a default value, this direct usage leads to a divide-by-zero at i810_main.c:1005 (i810_check_params). The patch simply replace the 'yres' global, perhaps undefined symbol usage by a given parameter structure lookup. This problem occurs with directfb, mplayer -vo fbdev, SDL library. It was also reported ( but non solved ) at: http://mail.directfb.org/pipermail/directfb-dev/2008-March/004050.html Signed-off-by: Samuel CUELLA <samuel.cuella@supinfo.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10m68knommu: m528x build fixSteven King
There isn't any mcfqspi.h in the tree, and without it everything inside the #ifdef CONFIG_SPI is uncompilable. Signed-off-by: Steven King <sfking@fdwdc.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10m68knommu: m5206e build fixSteven King
Signed-off-by: Steven King <sfking@fdwdc.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10rcu: documentation 1Q09 updatePaul E. McKenney
Update the RCU documentation to call out the need for callers of primitives like call_rcu() and synchronize_rcu() to prevent subsequent RCU readers from hazard. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10kernel/user.c: fix a memory leak when freeing up non-init usernamespaces usersDhaval Giani
We were returning early in the sysfs directory cleanup function if the user belonged to a non init usernamespace. Due to this a lot of the cleanup was not done and we were left with a leak. Fix the leak. Reported-by: Serge Hallyn <serue@linux.vnet.ibm.com> Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Tested-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10mtd: physmap: fix NULL pointer dereference in error pathAtsushi Nemoto
commit e480814f138cd5d78a8efe397756ba6b6518fdb6 ("[MTD] [MAPS] physmap: fix wrong free and del_mtd_{partition,device}") introduces a NULL pointer dereference in physmap_flash_remove when called from the error path in physmap_flash_probe (if map_probe failed). Call del_mtd_{partition,device} only if info->cmtd was not NULL. Reported-by: pHilipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: David Woodhouse <dwmw2@infradead.org> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10intel-agp: fix a panic with 1M of shared memory, no GTT entriesLubomir Rintel
When GTT size is equal to amount of video memory, the amount of GTT entries is computed lower than zero, which is invalid and leads to off-by-one error in intel_i915_configure() Originally posted here: http://bugzilla.kernel.org/show_bug.cgi?id=12539 http://bugzilla.redhat.com/show_bug.cgi?id=445592 Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Cc: Lubomir Rintel <lkundrak@v3.sk> Cc: Dave Airlie <airlied@linux.ie> Reviewed-by: Eric Anholt <eric@anholt.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10mtd_dataflash: fix probing of AT45DB321C chips.Will Newton
Commit 771999b65f79264acde4b855e5d35696eca5e80c ("[MTD] DataFlash: bugfix, binary page sizes now handled") broke support for probing AT45DB321C flash chips. These chips do not support the "page size" status bit, so if we match the JEDEC id return early. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Will Newton <will.newton@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10idr: make idr_remove_all() do removal -before- free_layer()Paul E. McKenney
Fix a problem in the IDR system, where an idr_remove_all() hands a data element to call_rcu() (via free_layer()) before making that data element inaccessible to new readers. This is very bad, and results in readers still having a reference to this data element at the end of the grace period. Tests on large machines that concurrently map and unmap user-space memory within the same multithreaded process result in crashes within about five minutes. Applying this patch increases the kernel's longevity to the three-to-eight-hour range. There appear to be other similar problems in idr_get_empty_slot() and sub_remove(), but I fixed the easy one in idr_remove_all() first. It is therefore no surprise that failures still occur. Located-by: Milton Miller II <miltonm@austin.ibm.com> Tested-by: Milton Miller II <miltonm@austin.ibm.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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