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2012-01-17Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits) ARM: mach-shmobile: specify CHCLR registers on SH7372 dma: shdma: fix runtime PM: clear channel buffers on reset dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submit dmaengine/ste_dma40: clear LNK on channel startup dmaengine: intel_mid_dma: remove legacy pm interface ASoC: mxs: correct 'direction' of device_prep_dma_cyclic dmaengine: intel_mid_dma: error path fix dmaengine: intel_mid_dma: locking and freeing fixes mtd: gpmi-nand: move to dma_transfer_direction mtd: fix compile error for gpmi-nand mmc: mxs-mmc: fix the dma_transfer_direction migration dmaengine: add DMA_TRANS_NONE to dma_transfer_direction dma: mxs-dma: Don't use CLKGATE bits in CTRL0 to disable DMA channels dma: mxs-dma: make mxs_dma_prep_slave_sg() multi user safe dma: mxs-dma: Always leave mxs_dma_init() with the clock disabled. dma: mxs-dma: fix a typo in comment DMA: PL330: Remove pm_runtime_xxx calls from pl330 probe/remove video i.MX IPU: Fix display connections i.MX IPU DMA: Fix wrong burstsize settings dmaengine/ste_dma40: allow fixed physical channel ... Fix up conflicts in drivers/dma/{Kconfig,mxs-dma.c,pl330.c} The conflicts looked pretty trivial, but I'll ask people to verify them.
2012-01-14Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits) MIPS: Delete unused function add_temporary_entry. MIPS: Set default pci cache line size. MIPS: Flush huge TLB MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM. MIPS: Octeon: Add support for OCTEON II PCIe MIPS: Octeon: Update PCI Latency timer and enable more error reporting. MIPS: Alchemy: Update cpu-feature-overrides MIPS: Alchemy: db1200: Improve PB1200 detection. MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code. MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller MIPS: Alchemy: irq: register pm at irq init time MIPS: Alchemy: Touchscreen support on DB1100 MIPS: Alchemy: Hook up IrDA on DB1000/DB1100 net/irda: convert au1k_ir to platform driver. MIPS: Alchemy: remove unused board headers MTD: nand: make au1550nd.c a platform_driver MIPS: Netlogic: Mark Netlogic chips as SMT capable MIPS: Netlogic: Add support for XLP 3XX cores MIPS: Netlogic: Merge some of XLR/XLP wakup code MIPS: Netlogic: Add default XLP config. ... Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c, traps.c} and drivers/tty/serial/Makefile
2012-01-13module_param: make bool parameters really bool (drivers & misc)Rusty Russell
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-11Merge tag 'rmobile-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds
SH/R-Mobile updates for 3.3 merge window. * tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh: (32 commits) arm: mach-shmobile: add a resource name for shdma ARM: mach-shmobile: r8a7779 SMP support V3 ARM: mach-shmobile: Add kota2 defconfig. ARM: mach-shmobile: Add marzen defconfig. ARM: mach-shmobile: r8a7779 power domain support V2 ARM: mach-shmobile: Fix up marzen build for recent GIC changes. ARM: mach-shmobile: r8a7779 PFC function support ARM: mach-shmobile: Flush caches in platform_cpu_die() ARM: mach-shmobile: Allow SoC specific CPU kill code ARM: mach-shmobile: Fix headsmp.S code to use CPUINIT ARM: mach-shmobile: clock-r8a7779: clkz/clkzs support ARM: mach-shmobile: clock-r8a7779: add DIV4 clock support ARM: mach-shmobile: Marzen LAN89218 support ARM: mach-shmobile: Marzen SCIF2/SCIF4 support ARM: mach-shmobile: r8a7779 PFC GPIO-only support V2 ARM: mach-shmobile: r8a7779 and Marzen base support V2 sh: pfc: Unlock register support sh: pfc: Variable bitfield width config register support sh: pfc: Add config_reg_helper() function sh: pfc: Convert index to field and value pair ...
2012-01-12Merge branch 'sh/nommu' into sh-latestPaul Mundt
2012-01-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-nextLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: sparc32: remove unused file: include/asm/pgtsun4.h sparc32: fix PAGE_SIZE definition sparc32: enable different preemptions models sparc32: support atomic64_t apbuart: fix section mismatch warning sparc32: drop useless preprocessor conditional in atomic_32.h sparc32: drop unused atomic24 support
2012-01-09Merge tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
clock management changes for i.MX Another simple series related to clock management, this time only for imx. * tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: mxs: select HAVE_CLK_PREPARE for clock clk: add config option HAVE_CLK_PREPARE into Kconfig ASoC: mxs-saif: convert to clk_prepare/clk_unprepare video: mxsfb: convert to clk_prepare/clk_unprepare serial: mxs-auart: convert to clk_prepare/clk_unprepare net: flexcan: convert to clk_prepare/clk_unprepare mtd: gpmi-lib: convert to clk_prepare/clk_unprepare mmc: mxs-mmc: convert to clk_prepare/clk_unprepare dma: mxs-dma: convert to clk_prepare/clk_unprepare net: fec: add clk_prepare/clk_unprepare ARM: mxs: convert platform code to clk_prepare/clk_unprepare clk: add helper functions clk_prepare_enable and clk_disable_unprepare Fix up trivial conflicts in drivers/net/ethernet/freescale/fec.c due to commit 0ebafefcaa7a ("net: fec: add clk_prepare/clk_unprepare") clashing trivially with commit e163cc97f9ac ("net/fec: fix the .remove code").
2012-01-09Merge tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
power management changes for omap and imx A significant part of the changes for these two platforms went into power management, so they are split out into a separate branch. * tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (65 commits) ARM: imx6: remove __CPUINIT annotation from v7_invalidate_l1 ARM: imx6: fix v7_invalidate_l1 by adding I-Cache invalidation ARM: imx6q: resume PL310 only when CACHE_L2X0 defined ARM: imx6q: build pm code only when CONFIG_PM selected ARM: mx5: use generic irq chip pm interface for pm functions on ARM: omap: pass minimal SoC/board data for UART from dt arm/dts: Add minimal device tree support for omap2420 and omap2430 omap-serial: Add minimal device tree support omap-serial: Use default clock speed (48Mhz) if not specified omap-serial: Get rid of all pdev->id usage ARM: OMAP2+: hwmod: Add a new flag to handle hwmods left enabled at init ARM: OMAP4: PRM: use PRCM interrupt handler ARM: OMAP3: pm: use prcm chain handler ARM: OMAP: hwmod: add support for selecting mpu_irq for each wakeup pad ARM: OMAP2+: mux: add support for PAD wakeup interrupts ARM: OMAP: PRCM: add suspend prepare / finish support ARM: OMAP: PRCM: add support for chain interrupt handler ARM: OMAP3/4: PRM: add functions to read pending IRQs, PRM barrier ARM: OMAP2+: hwmod: Add API to enable IO ring wakeup ARM: OMAP2+: mux: add wakeup-capable hwmod mux entries to dynamic list ...
2012-01-09Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Device tree conversions for samsung and tegra Both platforms had some initial device tree support, but this adds much more to actually make it usable. * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits) ARM: dts: Add intial dts file for EXYNOS4210 SoC, SMDKV310 and ORIGEN ARM: EXYNOS: Add Exynos4 device tree enabled board file rtc: rtc-s3c: Add device tree support input: samsung-keypad: Add device tree support ARM: S5PV210: Modify platform data for pl330 driver ARM: S5PC100: Modify platform data for pl330 driver ARM: S5P64x0: Modify platform data for pl330 driver ARM: EXYNOS: Add a alias for pdma clocks ARM: EXYNOS: Limit usage of pl330 device instance to non-dt build ARM: SAMSUNG: Add device tree support for pl330 dma engine wrappers DMA: PL330: Add device tree support ARM: EXYNOS: Modify platform data for pl330 driver DMA: PL330: Infer transfer direction from transfer request instead of platform data DMA: PL330: move filter function into driver serial: samsung: Fix build for non-Exynos4210 devices serial: samsung: add device tree support serial: samsung: merge probe() function from all SoC specific extensions serial: samsung: merge all SoC specific port reset functions ARM: SAMSUNG: register uart clocks to clock lookup list serial: samsung: remove all uses of get_clksrc and set_clksrc ... Fix up fairly trivial conflicts in arch/arm/mach-s3c2440/clock.c and drivers/tty/serial/Kconfig both due to just adding code close to changes.
2012-01-09Merge branch 'tty-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty * 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (65 commits) tty: serial: imx: move del_timer_sync() to avoid potential deadlock imx: add polled io uart methods imx: Add save/restore functions for UART control regs serial/imx: let probing fail for the dt case without a valid alias serial/imx: propagate error from of_alias_get_id instead of using -ENODEV tty: serial: imx: Allow UART to be a source for wakeup serial: driver for m32 arch should not have DEC alpha errata serial/documentation: fix documented name of DCD cpp symbol atmel_serial: fix spinlock lockup in RS485 code tty: Fix memory leak in virtual console when enable unicode translation serial: use DIV_ROUND_CLOSEST instead of open coding it serial: add support for 400 and 800 v3 series Titan cards serial: bfin-uart: Remove ASYNC_CTS_FLOW flag for hardware automatic CTS. serial: bfin-uart: Enable hardware automatic CTS only when CTS pin is available. serial: make FSL errata depend on 8250_CONSOLE, not just 8250 serial: add irq handler for Freescale 16550 errata. serial: manually inline serial8250_handle_port serial: make 8250 timeout use the specified IRQ handler serial: export the key functions for an 8250 IRQ handler serial: clean up parameter passing for 8250 Rx IRQ handling ...
2012-01-09Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest Conflicts: arch/arm/mach-shmobile/clock-sh73a0.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into rmobile-latest Conflicts: arch/arm/mach-shmobile/Makefile Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits) Kconfig: acpi: Fix typo in comment. misc latin1 to utf8 conversions devres: Fix a typo in devm_kfree comment btrfs: free-space-cache.c: remove extra semicolon. fat: Spelling s/obsolate/obsolete/g SCSI, pmcraid: Fix spelling error in a pmcraid_err() call tools/power turbostat: update fields in manpage mac80211: drop spelling fix types.h: fix comment spelling for 'architectures' typo fixes: aera -> area, exntension -> extension devices.txt: Fix typo of 'VMware'. sis900: Fix enum typo 'sis900_rx_bufer_status' decompress_bunzip2: remove invalid vi modeline treewide: Fix comment and string typo 'bufer' hyper-v: Update MAINTAINERS treewide: Fix typos in various parts of the kernel, and fix some comments. clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR gpio: Kconfig: drop unknown symbol 'CS5535_GPIO' leds: Kconfig: Fix typo 'D2NET_V2' sound: Kconfig: drop unknown symbol ARCH_CLPS7500 ... Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new kconfig additions, close to removed commented-out old ones)
2012-01-08Merge branch 'for-linus2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits) reiserfs: Properly display mount options in /proc/mounts vfs: prevent remount read-only if pending removes vfs: count unlinked inodes vfs: protect remounting superblock read-only vfs: keep list of mounts for each superblock vfs: switch ->show_options() to struct dentry * vfs: switch ->show_path() to struct dentry * vfs: switch ->show_devname() to struct dentry * vfs: switch ->show_stats to struct dentry * switch security_path_chmod() to struct path * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb vfs: trim includes a bit switch mnt_namespace ->root to struct mount vfs: take /proc/*/mounts and friends to fs/proc_namespace.c vfs: opencode mntget() mnt_set_mountpoint() vfs: spread struct mount - remaining argument of next_mnt() vfs: move fsnotify junk to struct mount vfs: move mnt_devname vfs: move mnt_list to struct mount vfs: switch pnode.h macros to struct mount * ...
2012-01-06Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into ZAl Viro
2012-01-06Merge branch 'amba-modalias' of ↵Linus Torvalds
git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'amba-modalias' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: sound: aaci: Enable module alias autogeneration for AMBA drivers watchdog: sp805: Enable module alias autogeneration for AMBA drivers fbdev: amba: Enable module alias autogeneration for AMBA drivers serial: pl011: Enable module alias autogeneration for AMBA drivers serial: pl010: Enable module alias autogeneration for AMBA drivers spi: pl022: Enable module alias autogeneration for AMBA drivers rtc: pl031: Enable module alias autogeneration for AMBA drivers rtc: pl030: Enable module alias autogeneration for AMBA drivers mmc: mmci: Enable module alias autogeneration for AMBA drivers input: ambakmi: Enable module alias autogeneration for AMBA drivers gpio: pl061: Enable module alias autogeneration for AMBA drivers dmaengine: pl330: Enable module alias autogeneration for AMBA drivers dmaengine: pl08x: Enable module alias autogeneration for AMBA drivers hwrng: nomadik: Enable module alias autogeneration for AMBA drivers ARM: amba: Auto-generate AMBA driver module aliases during modpost ARM: amba: Move definition of struct amba_id to mod_devicetable.h
2012-01-04tty: serial: imx: move del_timer_sync() to avoid potential deadlockEric Miao
del_timer_sync() acquires its own lock and doesn't have to be nested within the spinlock of sport->port.lock in imx_set_termios(), which will cause potential deadlock. Fix this by moving it outside. Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Eric Miao <eric.miao@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04imx: add polled io uart methodsSaleem Abdulrasool
These methods are invoked if the iMX uart is used in conjuction with kgdb during early boot. In order to access the UART without the interrupts, the kernel uses the basic polling methods for IO with the device. With these methods implemented, it is now possible to enable kgdb during early boot over serial. Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org> Signed-off-by: Dirk Behme <dirk.behme@gmail.com> CC: Sascha Hauer <s.hauer@pengutronix.de> CC: Fabio Estevam <festevam@gmail.com> CC: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> CC: linux-serial@vger.kernel.org CC: Alan Cox <alan@linux.intel.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04imx: Add save/restore functions for UART control regsDirk Behme
Factor out the uart save/restore functionality instead of having the same code several times in the driver. Signed-off-by: Dirk Behme <dirk.behme@gmail.com> CC: Saleem Abdulrasool <compnerd@compnerd.org> CC: Sascha Hauer <s.hauer@pengutronix.de> CC: Fabio Estevam <festevam@gmail.com> CC: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> CC: linux-serial@vger.kernel.org CC: Alan Cox <alan@linux.intel.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04serial/imx: let probing fail for the dt case without a valid aliasUwe Kleine-König
When the uart device is instantiated by dt but dt doesn't provide an alias then better let probing fail instead of falling back to an unrelated device id used for the line number and no platform data. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04serial/imx: propagate error from of_alias_get_id instead of using -ENODEVUwe Kleine-König
A quick look at of_alias_get_id shows that in the error case it returns -ENODEV, too, but still it's better style to propagate the value as is. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Alan Cox <alan@linux.intel.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Jeremy Kerr <jeremy.kerr@canonical.com> Cc: Jason Liu <jason.hui@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Jason Liu <jason.hui@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04tty: serial: imx: Allow UART to be a source for wakeupFabio Estevam
Allow UART to be a source for wakeup from low power mode. Tested on a MX27PDK by doing: echo enabled > /sys/devices/platform/imx21-uart.0/tty/ttymxc0/power/wakeup echo mem > /sys/power/state and then pressing a key in the console will wakeup the sytem. Suggested-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Tested-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04serial: driver for m32 arch should not have DEC alpha errataPaul Gortmaker
This driver was copied from the original 8250 driver and hence got the DEC alpha errata workaround. But the workaround is ugly and we don't really want it in any more places than it absolutely needs to be. Obviously ARCH=m32r means ARCH != alpha, so just remove the references to the ALPHA_KLUDGE_MCR define. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04atmel_serial: fix spinlock lockup in RS485 codeClaudio Scordino
Patch to fix a spinlock lockup in the driver that sometimes happens when the tasklet starts. Signed-off-by: Claudio Scordino <claudio@evidence.eu.com> Signed-off-by: Dave Bender <codehero@gmail.com> Tested-by: Dave Bender <codehero@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04tty: Fix memory leak in virtual console when enable unicode translationZeng Zhaoming
Virtual console unicode translation map leaks with following message when enable kmemleak: unreferenced object 0xeb5ec450 (size 192): comm "setfont", pid 665, jiffies 4294899028 (age 3696.220s) hex dump (first 32 bytes): e0 5b 9d eb 00 00 00 00 00 00 00 00 80 b9 ea eb .[.............. b0 5a 9d eb 00 00 00 00 00 00 00 00 00 00 00 00 .Z.............. backtrace: [<c1533f8c>] kmemleak_alloc+0x3c/0xa0 [<c114acc2>] kmem_cache_alloc_trace+0xe2/0x250 [<c13498e8>] con_clear_unimap+0x78/0xd0 [<c1345552>] vt_ioctl+0x1562/0x1d00 [<c133aa00>] tty_ioctl+0x230/0x7c0 [<c1171519>] do_vfs_ioctl+0x79/0x2d0 [<c11717df>] sys_ioctl+0x6f/0x80 [<c156601f>] sysenter_do_call+0x12/0x38 [<ffffffff>] 0xffffffff unreferenced object 0xeb9d5be0 (size 128): comm "setfont", pid 660, jiffies 4294899030 (age 3696.212s) hex dump (first 32 bytes): 60 c2 a6 eb 50 c8 a6 eb c0 54 9d eb 80 59 9d eb `...P....T...Y.. 90 53 9d eb 60 52 9d eb 60 92 9b eb 00 00 00 00 .S..`R..`....... backtrace: [<c1533f8c>] kmemleak_alloc+0x3c/0xa0 [<c114acc2>] kmem_cache_alloc_trace+0xe2/0x250 [<c134938c>] con_insert_unipair+0x7c/0x150 [<c1349f8c>] con_set_unimap+0x15c/0x1f0 [<c13456fb>] vt_ioctl+0x170b/0x1d00 [<c133aa00>] tty_ioctl+0x230/0x7c0 [<c1171519>] do_vfs_ioctl+0x79/0x2d0 [<c11717df>] sys_ioctl+0x6f/0x80 [<c156601f>] sysenter_do_call+0x12/0x38 [<ffffffff>] 0xffffffff The leak caused by con_set_default_unimap() not correct free the old map. Signed-off-by: Zeng Zhaoming <zengzm.kernel@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04serial: use DIV_ROUND_CLOSEST instead of open coding itUwe Kleine-König
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-03switch device_get_devnode() and ->devnode() to umode_t *Al Viro
both callers of device_get_devnode() are only interested in lower 16bits and nobody tries to return anything wider than 16bit anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03fs: move code out of buffer.cAl Viro
Move invalidate_bdev, block_sync_page into fs/block_dev.c. Export kill_bdev as well, so brd doesn't have to open code it. Reduce buffer_head.h requirement accordingly. Removed a rather large comment from invalidate_bdev, as it looked a bit obsolete to bother moving. The small comment replacing it says enough. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03serial: add support for 400 and 800 v3 series Titan cardsYegor Yefremov
add support for 400Hv3, 410Hv3 and 800Hv3 Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-28serial: mxs-auart: convert to clk_prepare/clk_unprepareShawn Guo
The patch converts mxs-auart driver to clk_prepare/clk_unprepare by using helper functions clk_prepare_enable/clk_disable_unprepare. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Alan Cox <alan@linux.intel.com>
2011-12-27apbuart: fix section mismatch warningSam Ravnborg
Fix following warnings: WARNING: drivers/tty/serial/built-in.o(.text+0x7370): Section mismatch in reference from the function grlib_apbuart_configure() to the variable .init.data:apbuart_match The function grlib_apbuart_configure() references the variable __initdata apbuart_match. This is often because grlib_apbuart_configure lacks a __initdata annotation or the annotation of apbuart_match is wrong. + 3 more warnings like this. There is no guarantee that grlib_apbuart_of_driver.of_match_table is only used at __init time - so drop the __initdata annotation. grlib_apbuart_configure() is only used during __init so add __init to this method too. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23serial: samsung: Fix build for non-Exynos4210 devicesMark Brown
exynos4120_serial_drv_data is only defined when building with support for Exynos4210 so use the already provided define to ensure that we don't reference it when building for other SoCs. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> [kgene.kim@samsung.com: Fixed build warning] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: add device tree supportThomas Abraham
Add device tree based discovery support for Samsung's uart controller. Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: merge probe() function from all SoC specific extensionsThomas Abraham
With reset port, set clock and get clock functions in SoC specific extentions being removed, only the driver probe is left over in these extensions. The probe function itself can be merged into one and moved into the samsung common serial driver. With driver probe also moved, all the SoC specific extentions are no longer required and they are deleted. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: merge all SoC specific port reset functionsThomas Abraham
The port reset function in each of the platform specific extension performs the same operations and hence all the reset port functions can be merged into one and moved into the common samsung uart driver. The SoC specific port reset functions are removed from SoC extensions. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: remove all uses of get_clksrc and set_clksrcThomas Abraham
With clkdev based clock lookup support, the clock set and get operation using clock names communicated between the samsung uart driver and the SoC specific extension can be removed. In addition to that, for each platform specific extension, add the default clock selection, number of clock options for uart baud generator, clock selection bit mask and shift values which is required by the clkdev support in samsung uart driver. The default clock selection value 'def_clk_sel' specifies the default clock to be used as the source clock for baud rate generator in case the platform code does not specify the same. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: SAMSUNG: remove struct 's3c24xx_uart_clksrc' and all uses of itThomas Abraham
With clkdev based clock lookup added to samsung serial driver, the use of 'struct s3c24xx_uart_clksrc' to supply clock names in platform data is removed from all the Samsung platform code. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Ramax Lo <ramaxlo@gmail.com> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: switch to clkdev based clock lookupThomas Abraham
Instead of using clock names supplied in platform data, use a generic clock name 'clk_uart_baud' to look up clocks. The platform code should register clocks with the name 'clk_uart_baud' which can be used by the baud rate generator. The clock lookup and selection of the best clock as baud rate clock is reworked. Platform code can specify the clocks that can be used as source for the baud clock (as supported previously by passing names of clocks). A new member is added to the platform data 'clk_sel' which holds a bit-field value with each bit representing a baud source clock. If a bit at any bit position is set, that clock is looked up to participate in the selection of the baud clock source. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S3C2440: move handling of fclk/n clock to platform codeThomas Abraham
s3c2440 uses fclk/n (fclk divided by n) clock as one of the possible clocks used to generate the baud rate clock. The divider 'n' in this case can be logically represented outside of the uart controller. This patch creates a new clock by name "fclk_n" for s3c2440 based platforms to represent the fclk/n clock in the platform code. This clock provides a get_rate callback that checks the UCON0/1/2 registers to determine the clock rate. The samsung uart driver would receive the "fclk_n" clock name as one of the possible baud rate clock options and the driver need not determine clock rate of fclk/n. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: Keep a copy of the location of platform data in driver's ↵Thomas Abraham
private data Add a pointer to the location of the platform data in the driver's private data. When instantiated using device tree, pdev->dev->platform_data does not necessarily point to a valid instance of platform data. The platform data pointer in the driver's private data could be set to pdev->dev->platform_data or platform data instance created from device tree. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-16omap-serial: Add minimal device tree supportRajendra Nayak
Adapt the driver to device tree and pass minimal platform data from device tree needed for console boot. No power management features will be suppported for now since it requires more tweaks around OCP settings to toggle forceidle/noidle/smartidle bits and handling remote wakeup and dynamic muxing. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-16omap-serial: Use default clock speed (48Mhz) if not specifiedRajendra Nayak
Use a default clock speed of 48Mhz, instead of ending up with 0, if platforms fail to specify a valid clock speed. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-16omap-serial: Get rid of all pdev->id usageRajendra Nayak
With Device tree, pdev->id would no longer be Valid. Hence get rid of all instances of its usage in the driver. Device tree support for the driver is added in subsequent patches. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-16tty/serial/pmac_zilog: Fix suspend & resumeBenjamin Herrenschmidt
This patch reworks & simplifies pmac_zilog handling of suspend/resume, essentially removing all the specific code in there and using the generic uart helpers. This required properly registering the tty as a child of the macio (or platform) device, so I had to delay the registration a bit (we used to register the ports very very early). We still register the kernel console early though. I removed a couple of unused or useless flags as well, relying on the core to not call us when asleep. I also removed the essentially useless interrupt mutex, simplifying the locking a bit. I removed some code for handling unexpected interrupt which should never be hit and could potentially be harmful (causing us to access a register on a powered off SCC). We diable port interrupts on close always so there should be no need to drain data on a closed port. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-14ARM: OMAP2+: UART: Fix compilation/sparse warningsGovindraj.R
Fixes below compilation warning. drivers/tty/serial/omap-serial.c: In function 'serial_omap_irq': drivers/tty/serial/omap-serial.c:228:29: warning: 'ch' may be used uninitialized in this function [-Wuninitialized] Fix below sparse warning. drivers/tty/serial/omap-serial.c:392:52: warning: incorrect type in argument 2 (different signedness) drivers/tty/serial/omap-serial.c:392:52: expected int *status drivers/tty/serial/omap-serial.c:392:52: got unsigned int *<noident> Reported-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes) Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-12-14ARM: OMAP2+: UART: Remove omap_uart_can_sleep and add pm_qosGovindraj.R
Omap_uart_can_sleep function blocks system wide low power state until uart is active remove this func and add qos requests to prevent MPU from transitioning. Keep qos request to default value which will allow MPU to transition and while uart baud rate is available calculate the latency value from the baudrate and use the same to hold constraint while uart clocks are enabled, and if uart is auto-idled the constraint is updated with default constraint value allowing MPU to transition. Qos requests are blocking notifier calls so put these requests to work queue, also the driver uses irq_safe version of runtime API's and callbacks can be called in interrupt disabled context. So to avoid warn on slow path warning while using qos update API's from runtime callbacks use the qos_work_queue. During bootup the runtime_resume call backs might not be called and runtime callback gets called only after uart is idled by setting the autosuspend timeout. So qos_request from runtime resume callback might not activated during boot if uart baudrate is calculated during bootup for console uart, so schedule the qos_work queue once we calc_latency while configuring the uart port. Flush and complete any pending qos jobs in work queue while suspending. Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes) Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-12-14ARM: OMAP2+: UART: Make the RX_TIMEOUT for DMA configurable for each UARTJon Hunter
When using DMA there are two timeouts defined. The first timeout, rx_timeout, is really a polling rate in which software polls the DMA status to see if the DMA has finished. This is necessary for the RX side because we do not know how much data we will receive. The secound timeout, RX_TIMEOUT, is a timeout after which the DMA will be stopped if no more data is received. To make this clearer, rename rx_timeout as rx_poll_rate and rename the function serial_omap_rx_timeout() to serial_omap_rxdma_poll(). The OMAP-Serial driver defines an RX_TIMEOUT of 3 seconds that is used to indicate when the DMA for UART can be stopped if no more data is received. The value is a global definition that is applied to all instances of the UART. Each UART may be used for a different purpose and so the timeout required may differ. Make this value configurable for each UART so that this value can be optimised for power savings. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes) Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-12-14ARM: OMAP2+: UART: Allow UART parameters to be configured from board file.Deepak K
The following UART parameters are defined within the UART driver: 1). Whether the UART uses DMA (dma_enabled), by default set to 0 2). The size of dma buffer (set to 4096 bytes) 3). The time after which the dma should stop if no more data is received. 4). The auto suspend delay that will be passed for pm_runtime_autosuspend where uart will be disabled after timeout Different UARTs may be used for different purpose such as the console, for interfacing bluetooth chip, for interfacing to a modem chip, etc. Therefore, it is necessary to be able to customize the above settings for a given board on a per UART basis. This change allows these parameters to be configured from the board file and allows the parameters to be configured for each UART independently. If a board does not define its own custom parameters for the UARTs, then use the default parameters in the structure "omap_serial_default_info". The default parameters are defined to be the same as the current settings in the UART driver to avoid breaking the UART for any cuurnelty supported boards. By default, make all boards use the default UART parameters. Signed-off-by: Deepak K <deepak.k@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes) Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-12-14ARM: OMAP2+: UART: Add wakeup mechanism for omap-uartsGovindraj.R
From the runtime callbacks enable hwmod wakeups for uart which will internally enable io-pad wakeups for uarts if they have rx-pad pins set as wakeup capabale. Use the io-ring wakeup mechanism after uart clock gating and leave the PM_WKST set for uart to default reset values cleanup the code in serial.c which was handling PM_WKST reg. Irq_chaing(PRM_DRIVER) is used to wakeup uart after uart clocks are gated using pad wakeup mechanism. Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes) Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-12-14ARM: OMAP2+: UART: Move errata handling from serial.c to omap-serialGovindraj.R
Move the errata handling mechanism from serial.c to omap-serial file and utilise the same func in driver file. Errata i202, i291 are moved to be handled with omap-serial Moving the errata macro from serial.c file to driver header file as from on errata will be handled in driver file itself. Corrected errata id from chapter reference 2.15 to errata id i291. Removed errata and dma_enabled fields from omap_uart_state struct as they are no more needed with errata handling done within omap-serial. Signed-off-by: Govindraj.R <govindraj.raja@ti.com> Acked-by: Alan Cox <alan@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kevin Hilman <khilman@ti.com>