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2010-05-27gpiolib: document that names can contain printk format specifiersUwe Kleine-König1-1/+3
Signed-off-by: Uwe Kleine-König <[email protected]> Cc: David Brownell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27gpiolib: make names array and its values constUwe Kleine-König2-2/+2
gpiolib doesn't need to modify the names and I assume most initializers use string constants that shouldn't be modified anyhow. [[email protected]: fix drivers/gpio/cs5535-gpio.c] Signed-off-by: Uwe Kleine-König <[email protected]> Cc: Kevin Wells <[email protected]> Cc: David Brownell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27gpio: add interrupt handling capability to max732xMarc Zyngier1-0/+3
Most of the GPIO expanders supported by the max732x driver have interrupt generation capability by reporting changes on input pins through an INT# pin. This patch implements the irq_chip functionnality (edge detection only). Signed-off-by: Marc Zyngier <[email protected]> Cc: Eric Miao <[email protected]> Cc: Jebediah Huang <[email protected]> Cc: David Brownell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27sdhci-spear: ST SPEAr based SDHCI controller glueViresh KUMAR1-0/+42
Add a glue layer to support the sdhci driver on the ST SPEAr platform. Signed-off-by: Viresh Kumar <[email protected]> Cc: <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Russell King <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27sdio: add new function for RAW (Read after Write) operationGrazvydas Ignotas1-0/+3
SDIO specification allows RAW (Read after Write) operation using IO_RW_DIRECT command (CMD52) by setting the RAW bit. This operation is similar to ordinary read/write commands, except that both write and read are performed using single command/response pair. The Linux SDIO layer already supports this internaly, only external function is missing for drivers to make use, which is added by this patch. This type of command is required to implement proper power save mode support in wl1251 wifi driver. Android has similar patch for G1 in it's tree for the same reason: http://android.git.kernel.org/?p=kernel/common.git;a=commitdiff;h=74a47786f6ecbe6c1cf9fb15efe6a968451deb52 Signed-off-by: Grazvydas Ignotas <[email protected]> Acked-by: Kalle Valo <[email protected]> Cc: Dmitry Shmidt <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27mmc: remove the "state" argument to mmc_suspend_host()Matt Fleming1-1/+1
Even though many mmc host drivers pass a pm_message_t argument to mmc_suspend_host() that argument isn't used the by MMC core. As host drivers are converted to dev_pm_ops they'll have to construct pm_message_t's (as they won't be passed by the PM subsystem any more) just to appease the mmc suspend interface. We might as well just delete the unused paramter. Signed-off-by: Matt Fleming <[email protected]> Acked-by: Anton Vorontsov <[email protected]> Acked-by: Michal Miroslaw <[email protected]>ZZ Acked-by: Sascha Sommer <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27mmc: add support MMCIF for SuperHYusuke Goda1-0/+39
MMCIF is the MMC Host Interface in SuperH. Signed-off-by: Yusuke Goda <[email protected]> Cc: Ben Hutchings <[email protected]> Cc: Paul Mundt <[email protected]> Cc: Magnus Damm <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27sdhci-pltfm: implement platform data passingAnton Vorontsov1-0/+35
This includes platform ops, quirks and (de)initialization callbacks. Signed-off-by: Anton Vorontsov <[email protected]> Cc: Richard Röjfors <[email protected]> Cc: David Vrabel <[email protected]> Cc: Pierre Ossman <[email protected]> Cc: Ben Dooks <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-26backlight: pcf50633: Register a pcf50633-backlight device in pcf50633 core ↵Lars-Peter Clausen1-0/+4
driver. Register a device newly added pcf50633-backlight driver as a child device in the pcf50633 core driver. Signed-off-by: Lars-Peter Clausen <[email protected]> Acked-by: Samuel Ortiz <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26backlight: Add pcf50633 backlight driverLars-Peter Clausen1-0/+51
This patch adds a backlight driver for controlling the pcf50633 LED module. Signed-off-by: Lars-Peter Clausen <[email protected]> Acked-by: Samuel Ortiz <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26backlight: add S6E63M0 AMOLED LCD Panel driverInKi Dae1-0/+23
This is S6E63M0 AMOLED LCD Panel(480x800) driver using 3-wired SPI interface also almost features for lcd panel driver has been implemented in here. and I added new structure common for all the lcd panel drivers to include/linux/lcd.h file. LCD Panel driver needs interfaces for controlling device power such as power on/off and reset. these interfaces are device specific so it should be implemented to machine code at this time, we should create new structure for registering these functions as callbacks and also a header file for that structure and finally registered callback functions would be called by lcd panel driver. such header file(including new structure for lcd panel) would be added for all the lcd panel drivers. If anyone provides common structure for registering such callback functions then we could reduce unnecessary header files for lcd panel. I thought that suitable anyone could be include/linux/lcd.h so a new lcd_platform_data structure was added there. [[email protected]: coding-style fixes] [[email protected]: fix s6e63m0 kconfig] [[email protected]: fix device attribute functions return types] Signed-off-by: InKi Dae <[email protected]> Reviewed-by: KyungMin Park <kyungmin.park.samsung.com> Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26Revert "endian: #define __BYTE_ORDER"Linus Torvalds2-6/+0
This reverts commit b3b77c8caef1750ebeea1054e39e358550ea9f55, which was also totally broken (see commit 0d2daf5cc858 that reverted the crc32 version of it). As reported by Stephen Rothwell, it causes problems on big-endian machines: > In file included from fs/jfs/jfs_types.h:33, > from fs/jfs/jfs_incore.h:26, > from fs/jfs/file.c:22: > fs/jfs/endian24.h:36:101: warning: "__LITTLE_ENDIAN" is not defined The kernel has never had that crazy "__BYTE_ORDER == __LITTLE_ENDIAN" model. It's not how we do things, and it isn't how we _should_ do things. So don't go there. Requested-by: Stephen Rothwell <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-26backlight: adp8860: add support for ADP8861 & ADP8863Michael Hennerich1-0/+17
Signed-off-by: Michael Hennerich <[email protected]> Signed-off-by: Mike Frysinger <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26backlight: new driver for the ADP8860 backlight partsMichael Hennerich1-0/+137
The ADP8860 combines a programmable backlight LED charge pump driver with automatic phototransistor control. Signed-off-by: Michael Hennerich <[email protected]> Signed-off-by: Mike Frysinger <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26leds: Add mc13783 LED supportPhilippe Rétornaz1-0/+66
This add basic led support for Freescale MC13783 PMIC. Signed-off-by: Philippe Rétornaz <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26leds: leds-gpio: Change blink_set callback to be able to turn off blinkingBenjamin Herrenschmidt1-4/+8
The leds-gpio blink_set() callback follows the same prototype as the main leds subsystem blink_set() one. The problem is that to stop blink, normally, a leds driver does it in the brightness_set() callback when asked to set a new fixed value. However, with leds-gpio, the platform has no hook to do so, as this later callback results in a standard GPIO manipulation. This changes the leds-gpio specific callback to take a new argument that indicates whether the LED should be blinking or not and in what state it should be set if not. We also update the dns323 platform which seems to be the only user of this so far. Signed-off-by: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds8-10/+113
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (63 commits) drivers/net/usb/asix.c: Fix pointer cast. be2net: Bug fix to avoid disabling bottom half during firmware upgrade. proc_dointvec: write a single value hso: add support for new products Phonet: fix potential use-after-free in pep_sock_close() ath9k: remove VEOL support for ad-hoc ath9k: change beacon allocation to prefer the first beacon slot sock.h: fix kernel-doc warning cls_cgroup: Fix build error when built-in macvlan: do proper cleanup in macvlan_common_newlink() V2 be2net: Bug fix in init code in probe net/dccp: expansion of error code size ath9k: Fix rx of mcast/bcast frames in PS mode with auto sleep wireless: fix sta_info.h kernel-doc warnings wireless: fix mac80211.h kernel-doc warnings iwlwifi: testing the wrong variable in iwl_add_bssid_station() ath9k_htc: rare leak in ath9k_hif_usb_alloc_tx_urbs() ath9k_htc: dereferencing before check in hif_usb_tx_cb() rt2x00: Fix rt2800usb TX descriptor writing. rt2x00: Fix failed SLEEP->AWAKE and AWAKE->SLEEP transitions. ...
2010-05-25libata: implement dump_id force paramTejun Heo1-0/+1
Add dump_id libata.force parameter. If specified, libata dumps full IDENTIFY data during device configuration. This is to aid debugging. Signed-off-by: Tejun Heo <[email protected]> Cc: Larry Baker <[email protected]> Signed-off-by: Jeff Garzik <[email protected]>
2010-05-25libata-sff: make BMDMA optionalTejun Heo1-6/+16
Make BMDMA optional depending on new config variable CONFIG_ATA_BMDMA. In Kconfig, drivers are grouped into five groups - non-SFF native, SFF w/ custom DMA interface, SFF w/ BMDMA, PIO-only SFF, and generic fallback / legacy ones. Kconfig and Makefile are reorganized according to the groups and ordered alphabetically inside each group. ata_ioports.bmdma_addr and ata_port.bmdma_prd[_dma] are put into CONFIG_ATA_BMDMA, as are all bmdma related ops, variables and functions. This increase the binary size slightly when BMDMA is enabled but on both native-only and PIO-only configurations the size is slightly reduced. Either way, the size difference is insignificant. This change is more meaningful to signify the separation between SFF and BMDMA and as a tool to verify the separation. Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Jeff Garzik <[email protected]>
2010-05-25libata-sff: separate out BMDMA initTejun Heo1-0/+7
Separate out ata_pci_bmdma_prepare_host() and ata_pci_bmdma_init_one() from their SFF counterparts. SFF ones no longer try to initialize BMDMA or set PCI master. Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Jeff Garzik <[email protected]>
2010-05-25libata-sff: separate out BMDMA irq handlerTejun Heo1-1/+4
Separate out BMDMA irq handler from SFF irq handler. The misnamed host_intr() functions are renamed to ata_sff_port_intr() and ata_bmdma_port_intr(). Common parts are factored into __ata_sff_port_intr() and __ata_sff_interrupt() and used by sff and bmdma interrupt routines. All BMDMA drivers now use ata_bmdma_interrupt() or ata_bmdma_port_intr() while all non-BMDMA SFF ones use ata_sff_interrupt() or ata_sff_port_intr(). For now, ata_pci_sff_init_one() uses ata_bmdma_interrupt() as it's used by both SFF and BMDMA drivers. Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Jeff Garzik <[email protected]>
2010-05-25libata-sff: ata_sff_irq_clear() is BMDMA specificTejun Heo1-0/+1
ata_sff_irq_clear() is BMDMA specific. Rename it to ata_bmdma_irq_clear(), move it to ata_bmdma_port_ops and make ->sff_irq_clear() optional. Note: ata_bmdma_irq_clear() is actually only needed by ata_piix and possibly by sata_sil. This should be moved to respective low level drivers later. Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Jeff Garzik <[email protected]>
2010-05-25driver core: add devname module aliases to allow module on-demand auto-loadingKay Sievers1-0/+2
This adds: alias: devname:<name> to some common kernel modules, which will allow the on-demand loading of the kernel module when the device node is accessed. Ideally all these modules would be compiled-in, but distros seems too much in love with their modularization that we need to cover the common cases with this new facility. It will allow us to remove a bunch of pretty useless init scripts and modprobes from init scripts. The static device node aliases will be carried in the module itself. The program depmod will extract this information to a file in the module directory: $ cat /lib/modules/2.6.34-00650-g537b60d-dirty/modules.devname # Device nodes to trigger on-demand module loading. microcode cpu/microcode c10:184 fuse fuse c10:229 ppp_generic ppp c108:0 tun net/tun c10:200 dm_mod mapper/control c10:235 Udev will pick up the depmod created file on startup and create all the static device nodes which the kernel modules specify, so that these modules get automatically loaded when the device node is accessed: $ /sbin/udevd --debug ... static_dev_create_from_modules: mknod '/dev/cpu/microcode' c10:184 static_dev_create_from_modules: mknod '/dev/fuse' c10:229 static_dev_create_from_modules: mknod '/dev/ppp' c108:0 static_dev_create_from_modules: mknod '/dev/net/tun' c10:200 static_dev_create_from_modules: mknod '/dev/mapper/control' c10:235 udev_rules_apply_static_dev_perms: chmod '/dev/net/tun' 0666 udev_rules_apply_static_dev_perms: chmod '/dev/fuse' 0666 A few device nodes are switched to statically allocated numbers, to allow the static nodes to work. This might also useful for systems which still run a plain static /dev, which is completely unsafe to use with any dynamic minor numbers. Note: The devname aliases must be limited to the *common* and *single*instance* device nodes, like the misc devices, and never be used for conceptually limited systems like the loop devices, which should rather get fixed properly and get a control node for losetup to talk to, instead of creating a random number of device nodes in advance, regardless if they are ever used. This facility is to hide the mess distros are creating with too modualized kernels, and just to hide that these modules are not compiled-in, and not to paper-over broken concepts. Thanks! :) Cc: Greg Kroah-Hartman <[email protected]> Cc: David S. Miller <[email protected]> Cc: Miklos Szeredi <[email protected]> Cc: Chris Mason <[email protected]> Cc: Alasdair G Kergon <[email protected]> Cc: Tigran Aivazian <[email protected]> Cc: Ian Kent <[email protected]> Signed-Off-By: Kay Sievers <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-05-25Merge branch 'master' of ↵David S. Miller1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-05-25Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds1-0/+3
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits) ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900 ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline ARM: 6140/1: silence a bogus sparse warning in unwind.c ARM: mach-at91: duplicated include ARM: arch/arm/nwfpe/fpsr.h: Checkpatch cleanup ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup ARM: arch/arm/nwfpe/ChangeLog: Checkpatch cleanup ARM: arch/arm/mach-sa1100/leds.c: Checkpatch cleanup ARM: arch/arm/mach-h720x/common.h: Checkpatch cleanup ARM: arch/arm/mach-footbridge/ebsa285-pci.c: Checkpatch cleanup ARM: arch/arm/mach-clps711x/Makefile.boot: Checkpatch cleanup ARM: arch/arm/boot/bootp/bootp.lds: Checkpatch cleanup ARM: SPEAR6xx: remove duplicated #include ARM: s3c6400_defconfig: Add NAND driver ARM: s3c6400_defconfig: enable sound as modules ARM: s3c6400_defconfig: enable power management ARM: s5pv210_defconfig: Update s5pv210_defconfig to v2.6.34 ARM: s5pc110_defconfig: Update s5pc110_defconfig to v2.6.34 ARM: s5p6442_defconfig: Update s5p6442_defconfig to v2.6.34 ARM: s5p6440_defconfig: Update s5p6440_defconfig to v2.6.34 ...
2010-05-25Merge branch 'for-linus' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: RDMA/nes: Fix incorrect unlock in nes_process_mac_intr() RDMA/nes: Async event for closed QP causes crash RDMA/nes: Have ethtool read hardware registers for rx/tx stats RDMA/cxgb4: Only insert sq qid in lookup table RDMA/cxgb4: Support IB_WR_READ_WITH_INV opcode RDMA/cxgb4: Set fence flag for inv-local-stag work requests RDMA/cxgb4: Update some HW limits RDMA/cxgb4: Don't limit fastreg page list depth RDMA/cxgb4: Return proper errors in fastreg mr/pbl allocation RDMA/cxgb4: Fix overflow bug in CQ arm RDMA/cxgb4: Optimize CQ overflow detection RDMA/cxgb4: CQ size must be IQ size - 2 RDMA/cxgb4: Register RDMA provider based on LLD state_change events RDMA/cxgb4: Detach from the LLD after unregistering RDMA device IB/ipath: Remove support for QLogic PCIe QLE devices IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters IB/mad: Make needlessly global mad_sendq_size/mad_recvq_size static IB/core: Allow device-specific per-port sysfs files mlx4_core: Clean up mlx4_alloc_icm() a bit mlx4_core: Fix possible chunk sg list overflow in mlx4_alloc_icm()
2010-05-25Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2-102/+31
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: spi/xilinx: Fix compile error spi/davinci: Fix clock prescale factor computation spi: move bitbang txrx utility functions to private header spi/mpc5121: Add SPI master driver for MPC5121 PSC powerpc/mpc5121: move PSC FIFO memory init to platform code spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller Documentation/spi/* compile warning fix spi/omap2_mcspi: Check params before dereference or use spi/omap2_mcspi: add turbo mode support spi/omap2_mcspi: change default DMA_MIN_BYTES value to 160 spi/pl022: fix stop queue procedure spi/pl022: add support for the PL023 derivate spi/pl022: fix up differences between ARM and ST versions spi/spi_mpc8xxx: Do not use map_tx_dma to unmap rx_dma spi/spi_mpc8xxx: Fix QE mode Litte Endian spi/spi_mpc8xxx: fix potential memory corruption.
2010-05-25Merge branch 'for-linus' of ↵Linus Torvalds2-3/+9
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: regulator: return set_mode is same mode is requested Regulators: ab3100/bq24022: add a missing .owner field in regulator_desc twl6030: regulator: Remove vsel tables and use formula for calculation mc13783-regulator: fix vaild voltage range checking for mc13783_fixed_regulator_set_voltage regulator: use voltage number array in 88pm860x regulator: make 88pm860x sharing one driver structure regulator: simplify regulator_register() error handling regulator: fix unset_regulator_supplies() to remove all matches regulator: prevent registration of matching regulator consumer supplies regulator: Allow regulator-regulator supplies to be specified by name
2010-05-25SFI: add support for v0.81 specFeng Tang1-1/+23
There are 2 major changes from v0.81 to v0.7: 1. Consolidating the SPIB/I2CB tables into a new DEVS table, which is more expandable and can support other bus types than spi/i2c. 2. Creating a new GPIO table, which list all the GPIO pins used in the platform. However, to avoid breaking current platforms who use SFI v0.7 version firmware, the definitions for SPIB/I2CB will still be kept for a while Signed-off-by: Feng Tang <[email protected]> Signed-off-by: Len Brown <[email protected]>
2010-05-25fbdev: move FBIO_WAITFORVSYNC to linux/fb.hGrazvydas Ignotas4-6/+2
FBIO_WAITFORVSYNC is currently implemented by matroxfb, atyfb, intelfb and more. All of them keep redefining the same FBIO_WAITFORVSYNC macro over and over again, so move it to linux/fb.h and clean up those duplicate defines. Signed-off-by: Grazvydas Ignotas <[email protected]> Cc: Ville Syrjala <[email protected]> Cc: Grant Likely <[email protected]> Cc: Maik Broemme <[email protected]> Cc: Petr Vandrovec <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Krzysztof Helt <[email protected]> Cc: "Hiremath, Vaibhav" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25fbdev: da8xx/omap-l1xx: implement double bufferingMartin Ambrose1-0/+1
This work includes the following: - Implement handler for FBIO_WAITFORVSYNC ioctl. - Allocate the data and palette buffers separately. A consequence of this is that the palette and data loading is now done in different phases. And that the LCD must be disabled temporarily after the palette is loaded but this will only happen once after init and each time the palette is changed. I think this is OK. - Allocate two (ping and pong) framebuffers from memory. - Add pan_display handler which toggles the LCDC DMA registers between the ping and pong buffers. Signed-off-by: Martin Ambrose <[email protected]> Cc: Chaithrika U S <[email protected]> Cc: Sudhakar Rajashekhara <[email protected]> Cc: Krzysztof Helt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25lis3: interrupt handlers for 8bit wakeup and click eventsSamu Onkalo1-0/+2
Content for the 8bit device threaded interrupt handlers. Depending on the interrupt line and chip configuration, either click or wakeup / freefall handler is called. In case of click, BTN_ event is sent via input device. In case of wakeup or freefall, input device ABS_ events are updated immediatelly. It is still possible to configure interrupt line 1 for fast freefall detection and use the second line either for click or threshold based interrupts. Or both lines can be used for click / threshold interrupts. Polled input device can be set to stopped state and still get coordinate updates via input device using interrupt based method. Polled mode and interrupt mode can also be used parallel. BTN_ events are remapped based on existing axis remapping information. Signed-off-by: Samu Onkalo <[email protected]> Acked-by: Eric Piel <[email protected]> Cc: Daniel Mack <[email protected]> Cc: Pavel Machek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25lis3: add skeletons for interrupt handlersSamu Onkalo1-0/+1
Original lis3 driver didn't provide interrupt handler(s) for click or threshold event handling. This patch adds threaded handlers for one or two interrupt lines for 8 bit device. Actual content for interrupt handling is provided in the separate patch. Signed-off-by: Samu Onkalo <[email protected]> Tested-by: Daniel Mack <[email protected]> Acked-by: Eric Piel <[email protected]> Cc: Pavel Machek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25lis3: introduce platform data for second ff / wu unitSamu Onkalo1-0/+9
8 bit device has two wakeup / free fall units. It was not possible to configure the second unit. This patch introduces configuration entry to the platform data and also corresponding changes to the 8 bit setup function. High pass filters were enabled by default. Patch introduces configuration option for high pass filter cut off frequency and also possibility to disable or enable the filter via platform data. Since the control is a new one and default state was filter enabled, new option is used to disable the filter. This way old platform data is still compatible with the change. Signed-off-by: Samu Onkalo <[email protected]> Acked-by: Eric Piel <[email protected]> Tested-by: Daniel Mack <[email protected]> Cc: Pavel Machek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25lib: introduce common method to convert hex digitsAndy Shevchenko1-0/+2
hex_to_bin() is a little method which converts hex digit to its actual value. There are plenty of places where such functionality is needed. [[email protected]: use tolower(), saving 3 bytes, test the more common case first - it's quicker] [[email protected]: relocate tolower to make it even faster! (Joe)] Signed-off-by: Andy Shevchenko <[email protected]> Cc: Tilman Schmidt <[email protected]> Cc: Duncan Sands <[email protected]> Cc: Eric W. Biederman <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: "Richard Russon (FlatCap)" <[email protected]> Cc: John W. Linville <[email protected]> Cc: Len Brown <[email protected]> Cc: Joe Perches <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25DYNAMIC_DEBUG: fix documentation errorsFlorian Ragwitz1-1/+1
[[email protected]: coding-style fixes] Signed-off-by: Florian Ragwitz <[email protected]> Cc: Jason Baron <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25ratelimit: add ratelimit_state_init()OGAWA Hirofumi1-1/+12
For now, all users of ratelimit_state allocates it statically, so DEFINE_RATELIMIT_STATE() is enough. But, I want to use ratelimit_state for fs, i.e. per super_block to suppress too many error reports. So, this adds ratelimit_state_init() to initialize ratelimite_state which is dynamically allocated, instead of opencoding. Signed-off-by: OGAWA Hirofumi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25printk_ratelimited(): fix uninitialized spinlockOGAWA Hirofumi1-8/+7
ratelimit_state initialization of printk_ratelimited() seems broken. This fixes it by using DEFINE_RATELIMIT_STATE() to initialize spinlock properly. Signed-off-by: OGAWA Hirofumi <[email protected]> Cc: Joe Perches <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25include/asm-generic/kmap_types.h: add helpful reminderAndrew Morton1-0/+3
Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25asm-generic: don't warn that atomic_t is only 24 bitPeter Fritzsche1-6/+2
32-bit Sparc used to only allow usage of 24-bit of it's atomic_t type. This was corrected with linux 2.6.3 when Keith M Wesolowski changed the implementation to use the parisc approach of having an array of spinlocks to protect the atomic_t. These warnings were also removed from the sparc implementation when the new implementation was merged in BKrev:402e4949VThdc6D3iaosSFUgabMfvw, but the warning still remained in some other places without any 24-bit-only atomic_t implementation inside the kernel. We should remove these warnings to allow users to rely on the full 32-bit range of atomic_t. Signed-off-by: Peter Fritzsche <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25kernel.h: add pr_warn for symmetry to dev_warn, netdev_warnJoe Perches1-0/+2
The current logging macros are pr_<level>, dev_<level>, netdev_<level>, and netif_<level>. pr_ uses warning, the other use warn. Standardize these logging macros a bit more by adding pr_warn and pr_warn_ratelimited. Right now, there are: $ for level in emerg alert crit err warn warning notice info ; do \ for prefix in pr dev netdev netif ; do \ echo -n "${prefix}_${level}: `git grep -w "${prefix}_${level}" | wc -l` " ; \ done ; \ echo ; \ done pr_emerg: 45 dev_emerg: 4 netdev_emerg: 1 netif_emerg: 4 pr_alert: 24 dev_alert: 36 netdev_alert: 1 netif_alert: 6 pr_crit: 24 dev_crit: 22 netdev_crit: 1 netif_crit: 4 pr_err: 2013 dev_err: 8467 netdev_err: 267 netif_err: 240 pr_warn: 0 dev_warn: 1818 netdev_warn: 126 netif_warn: 23 pr_warning: 773 dev_warning: 0 netdev_warning: 0 netif_warning: 0 pr_notice: 148 dev_notice: 111 netdev_notice: 9 netif_notice: 3 pr_info: 1717 dev_info: 3007 netdev_info: 101 netif_info: 85 Signed-off-by: Joe Perches <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, ↵Alexey Dobriyan4-10/+10
SHRT_MAX and SHRT_MIN - C99 knows about USHRT_MAX/SHRT_MAX/SHRT_MIN, not USHORT_MAX/SHORT_MAX/SHORT_MIN. - Make SHRT_MIN of type s16, not int, for consistency. [[email protected]: fix drivers/dma/timb_dma.c] [[email protected]: fix security/keys/keyring.c] Signed-off-by: Alexey Dobriyan <[email protected]> Acked-by: WANG Cong <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25endian: #define __BYTE_ORDERJoakim Tjernlund2-0/+6
Linux does not define __BYTE_ORDER in its endian header files which makes some header files bend backwards to get at the current endian. Lets #define __BYTE_ORDER in big_endian.h/litte_endian.h to make it easier for header files that are used in user space too. In userspace the convention is that 1. _both_ __LITTLE_ENDIAN and __BIG_ENDIAN are defined, 2. you have to test for e.g. __BYTE_ORDER == __BIG_ENDIAN. Signed-off-by: Joakim Tjernlund <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25err.h: add __must_check to error pointer handlersJani Nikula1-5/+5
Add __must_check to error pointer handlers to have the compiler warn about mistakes like: if (err) ERR_PTR(err); It found two bugs: Mar 12 Nikula Jani [PATCH] enclosure: fix error path - actually return ERR_PTR() on error Mar 12 Nikula Jani [PATCH] sunrpc: fix error path - actually return ERR_PTR() on error Signed-off-by: Jani Nikula <[email protected]> Cc: Phil Carmody <[email protected]> Cc: Alexey Dobriyan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25mm: make lowmem_page_address() use PFN_PHYS() for improved portabilityChris Metcalf1-1/+2
This ensures that platforms with lowmem PAs above 32 bits work correctly by avoiding truncating the PA during a left shift. Signed-off-by: Chris Metcalf <[email protected]> Cc: Barry Song <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25mem-hotplug: fix potential race while building zonelist for new populated zoneHaicheng Li1-0/+1
Add global mutex zonelists_mutex to fix the possible race: CPU0 CPU1 CPU2 (1) zone->present_pages += online_pages; (2) build_all_zonelists(); (3) alloc_page(); (4) free_page(); (5) build_all_zonelists(); (6) __build_all_zonelists(); (7) zone->pageset = alloc_percpu(); In step (3,4), zone->pageset still points to boot_pageset, so bad things may happen if 2+ nodes are in this state. Even if only 1 node is accessing the boot_pageset, (3) may still consume too much memory to fail the memory allocations in step (7). Besides, atomic operation ensures alloc_percpu() in step (7) will never fail since there is a new fresh memory block added in step(6). [[email protected]: hold zonelists_mutex when build_all_zonelists] Signed-off-by: Haicheng Li <[email protected]> Signed-off-by: Wu Fengguang <[email protected]> Reviewed-by: Andi Kleen <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Tejun Heo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25mem-hotplug: avoid multiple zones sharing same boot strapping boot_pagesetHaicheng Li1-1/+1
For each new populated zone of hotadded node, need to update its pagesets with dynamically allocated per_cpu_pageset struct for all possible CPUs: 1) Detach zone->pageset from the shared boot_pageset at end of __build_all_zonelists(). 2) Use mutex to protect zone->pageset when it's still shared in onlined_pages() Otherwises, multiple zones of different nodes would share same boot strapping boot_pageset for same CPU, which will finally cause below kernel panic: ------------[ cut here ]------------ kernel BUG at mm/page_alloc.c:1239! invalid opcode: 0000 [#1] SMP ... Call Trace: [<ffffffff811300c1>] __alloc_pages_nodemask+0x131/0x7b0 [<ffffffff81162e67>] alloc_pages_current+0x87/0xd0 [<ffffffff81128407>] __page_cache_alloc+0x67/0x70 [<ffffffff811325f0>] __do_page_cache_readahead+0x120/0x260 [<ffffffff81132751>] ra_submit+0x21/0x30 [<ffffffff811329c6>] ondemand_readahead+0x166/0x2c0 [<ffffffff81132ba0>] page_cache_async_readahead+0x80/0xa0 [<ffffffff8112a0e4>] generic_file_aio_read+0x364/0x670 [<ffffffff81266cfa>] nfs_file_read+0xca/0x130 [<ffffffff8117b20a>] do_sync_read+0xfa/0x140 [<ffffffff8117bf75>] vfs_read+0xb5/0x1a0 [<ffffffff8117c151>] sys_read+0x51/0x80 [<ffffffff8103c032>] system_call_fastpath+0x16/0x1b RIP [<ffffffff8112ff13>] get_page_from_freelist+0x883/0x900 RSP <ffff88000d1e78a8> ---[ end trace 4bda28328b9990db ] [[email protected]: merge fix] Signed-off-by: Haicheng Li <[email protected]> Signed-off-by: Wu Fengguang <[email protected]> Reviewed-by: Andi Kleen <[email protected]> Reviewed-by: Christoph Lameter <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Tejun Heo <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25mm: fix NR_SECTION_ROOTS == 0 when using using sparsemem extreme.Marcelo Roberto Jimenez1-1/+1
Got this while compiling for ARM/SA1100: mm/sparse.c: In function '__section_nr': mm/sparse.c:135: warning: 'root' is used uninitialized in this function This patch follows Russell King's suggestion for a new calculation for NR_SECTION_ROOTS. Thanks also to Sergei Shtylyov for pointing out the existence of the macro DIV_ROUND_UP. Atsushi Nemoto observed: : This fix doesn't just silence the warning - it fixes a real problem. : : Without this fix, mem_section[] might have 0 size so mem_section[0] : will share other variable area. For example, I got: : : c030c700 b __warned.16478 : c030c700 B mem_section : c030c701 b __warned.16483 : : This might cause very strange behavior. Your patch actually fixes it. Signed-off-by: Marcelo Roberto Jimenez <[email protected]> Cc: Atsushi Nemoto <[email protected]> Cc: KOSAKI Motohiro <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Yinghai Lu <[email protected]> Cc: Sergei Shtylyov <[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25highmem: remove unneeded #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT for ↵Akinobu Mita1-1/+1
debug_kmap_atomic() In f4112de6b679d84bd9b9681c7504be7bdfb7c7d5 ("mm: introduce debug_kmap_atomic") I said that debug_kmap_atomic() needs CONFIG_TRACE_IRQFLAGS_SUPPORT. It was wrong. (I thought irqs_disabled() is only available when the architecture has CONFIG_TRACE_IRQFLAGS_SUPPORT) Remove the #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT check to enable kmap_atomic() debugging for the architectures which do not have CONFIG_TRACE_IRQFLAGS_SUPPORT. Reported-by: Andrew Morton <[email protected]> Signed-off-by: Akinobu Mita <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-25include/linux/gfp.h: fix coding stylematt mooney1-5/+5
Add parenthesis in a define. This doesn't change functionality. checkpatch errors: 1) white space fixes 2) add spaces after comas Signed-off-by: matt mooney <[email protected]> Cc: Dan Carpenter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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