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2010-03-08[S390] smsgiucv_app: deliver z/VM CP special messages (SMSG) as ueventsHendrik Brueckner5-1/+225
The smsgiucv_app driver registers a callback with the smsgiucv driver to receive z/VM CP special messages (SMSG) starting with "APP". When the callback is called for special messages, the driver creates an uevent for the received message. The uevent consists of additional environment data containing the message prefix ("APP"), message sender, and message content. udev rules can be used to trigger application specific actions through matching the content or sender of the special message. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-08[S390] smsgiucv: declare char pointers as "const"Hendrik Brueckner2-8/+11
Declare the smsgiucv prefix char pointer as "const" and use use const char pointers in callback functions. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-08[S390] dasd: automatic recognition of read-only devicesStefan Weinhuber9-16/+79
In z/VM it is possible to attach a device as read-only. To prevent unintentional write requests and subsequent I/O errors, we can detect this configuration using the z/VM DIAG 210 interface and set the respective linux block device to read-only as well. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-08[S390] remove unused qdio flags in zfcp and qethUrsula Braun3-6/+0
zfcp and qeth are setting flags for the qdio-layer, but these flags are not used in qdio. Patch removes the flag definitions from qdio and their settings in zfcp and qeth. Cc: Jan Glauber <jang@linux.vnet.ibm.com> Cc: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-08[S390] qdio: add missing bracketUrsula Braun1-1/+2
Add a missing bracket to only log the outbound handler event in the appropriate case. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-08[S390] cio: fix init_count in case of recognition after steal lockSebastian Ott1-2/+3
After we try to steal a lock on a ccw device in boxed state, we have to restart device recognition and potentially reprobing. In this case ccw_device_init_count was erroneously decreased twice. This patch fixes the issue. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-08[S390] dasd: security and PSF update patch for EMC CKD ioctlNigel Hislop1-7/+10
Remove the PSF order/suborder check from the Symmetrix CKD dasd ioctl. In exchange restrict the ioctl to CAP_SYS_ADMIN and CAP_SYS_RAWIO. Signed-off-by: Nigel Hislop <hislop_nigel@emc.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-08[S390] hvc_iucv: allocate memory buffers for IUCV in zone DMAHendrik Brueckner1-2/+4
The device driver must allocate memory for IUCV buffers with GFP_DMA, because IUCV cannot address memory above 2GB (31bit addresses only). Because the IUCV ignores the higher bits of the address, sending and receiving IUCV data with this driver might cause memory corruptions. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-03-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-consoleLinus Torvalds1-13/+16
* git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-console: virtio: console: Use better variable names for fill_queue operation virtio: console: Fix type of 'len' as unsigned int
2010-03-07Merge branch 'x86-mrst-for-linus' of ↵Linus Torvalds1-0/+43
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits) x86, mrst: Fix whitespace breakage in apb_timer.c x86, mrst: Fix APB timer per cpu clockevent x86, mrst: Remove X86_MRST dependency on PCI_IOAPIC x86, olpc: Use pci subarch init for OLPC x86, pci: Add arch_init to x86_init abstraction x86, mrst: Add Kconfig dependencies for Moorestown x86, pci: Exclude Moorestown PCI code if CONFIG_X86_MRST=n x86, numaq: Make CONFIG_X86_NUMAQ depend on CONFIG_PCI x86, pci: Add sanity check for PCI fixed bar probing x86, legacy_irq: Remove duplicate vector assigment x86, legacy_irq: Remove left over nr_legacy_irqs x86, mrst: Platform clock setup code x86, apbt: Moorestown APB system timer driver x86, mrst: Add vrtc platform data setup code x86, mrst: Add platform timer info parsing code x86, mrst: Fill in PCI functions in x86_init layer x86, mrst: Add dummy legacy pic to platform setup x86/PCI: Moorestown PCI support x86, ioapic: Add dummy ioapic functions x86, ioapic: Early enable ioapic for timer irq ... Fixed up semantic conflict of new clocksources due to commit 17622339af25 ("clocksource: add argument to resume callback").
2010-03-07Merge branch 'for-linus/i2c' of git://git.fluff.org/bjdooks/linuxLinus Torvalds8-108/+1951
* 'for-linus/i2c' of git://git.fluff.org/bjdooks/linux: i2c: Add support for Xilinx XPS IIC Bus Interface i2c: omap: Add support for 16-bit registers i2c-pnx: fix setting start/stop condition powerpc: doc/dts-bindings: update doc of FSL I2C bindings i2c-mpc: add support for the MPC512x processors from Freescale i2c-mpc: rename "setclock" initialization functions to "setup" i2c-mpc: use __devinit[data] for initialization functions and data i2c/imx: don't add probe function to the driver struct i2c: Add support for Ux500/Nomadik I2C controller
2010-03-07Merge branch 'for-next' of ↵Linus Torvalds60-780/+6907
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (66 commits) mfd: Fix ucb1x00 build failure for collie_defconfig mfd: Fix lpc_sch related depends/selects, fix build error gpio: Fix sch_gpio warning gpio: add Intel SCH GPIO controller driver i2c: convert i2c-isch to platform_device mfd: Use completion interrupt for WM831x AUXADC mfd: Use completion interrupt for WM835x AUXADC mfd: Introduce remove_script function for twl4030 mfd/mmc: SDHI Kconfig update mfd: sh_mobile_sdhi MMC_CAP_MMC_HIGHSPEED support gpiolib: Force wm831x GPIOs into GPIO mode when requested mfd: Add WM831x revision B support gpiolib: Correct debugfs display of WM831x GPIO inversion gpiolib: Actually set output state in wm831x_gpio_direction_output() tmio_mmc: Balance cell enable()/disable() calls tmio_mmc: Remove const from platform data V3 tmio_mmc: Use 100ms mmc_detect_change() delay tmio_mmc: Add MMC_CAP_MMC_HIGHSPEED support V2 tmio_mmc: Keep card-detect interrupts enabled mfd: Add twl6030 base addr for ID0, ID1, ID2 ...
2010-03-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6Linus Torvalds478-24384/+29064
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (368 commits) Staging: winbond: fix up wireless api errors Staging: dream: camera: sk5k3e2fx: fix code style issues Staging: dream: camera: msm_camera: fix code style issues Staging: wlan-ng: More checkpatch.pl error cleanups Staging: wlan-ng - checkpatch.pl fixups Staging: comedi: comedi_fops.c: Checkpatch cleanup Staging: comedi: fix suspect code indent in ni_labpc.c Staging: comedi: fix yet another brace coding style issue in ni_labpc.c Staging: comedi: fix another brace coding style issues in ni_labpc.c Staging: comedi: fix brace coding style issue in ni_labpc.c Staging: comedi: poc: Adding some KERN_ facility level Staging: dream: camera: msm_camera: fix some code style issues Staging: wlan-ng: fix most of the style issues in hfa384x.h Staging: dream: camera: msm_camera: fix coding style issues Staging: comedi: fix bracing coding style and 80 character issues in ni_660x.c Staging: comedi: fix bracing coding style issue in ni_65xx.c Staging: comedi: pcmad: Checkpatch cleanups Staging: comedi: poc: fix coding style issues staging: dt3155: revert u_long to u64 usage Staging: comedi: drivers.c: Checkpatch cleanup ...
2010-03-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds4-248/+898
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits) sh: Convert sh to use read/update_persistent_clock sh: Move PMB debugfs entry initialization to later stage sh: Fix up flush_cache_vmap() on SMP. sh: fix up MMU reset with variable PMB mapping sizes. sh: establish PMB mappings for NUMA nodes. sh: check for existing mappings for bolted PMB entries. sh: fixed virt/phys mapping helpers for PMB. sh: make pmb iomapping configurable. sh: reworked dynamic PMB mapping. sh: Fix up cpumask_of_pcibus() for the NUMA build. serial: sh-sci: Tidy up build warnings. sh: Fix up ctrl_read/write stragglers in migor setup. serial: sh-sci: Add DMA support. dmaengine: shdma: extend .device_terminate_all() to record partial transfer sh: merge sh7722 and sh7724 DMA register definitions sh: activate runtime PM for dmaengine on sh7722 and sh7724 dmaengine: shdma: add runtime PM support. dmaengine: shdma: separate DMA headers. dmaengine: shdma: convert to platform device resources dmaengine: shdma: fix DMA error handling. ...
2010-03-07Merge branch 'for-linus' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: use __ratelimit in unaligned.c parisc: Convert to read/update_persistent_clock parisc: Simplify param.h by including <asm-generic/param.h> parisc: drop unnecessary cast in __ldcw_align() macro parisc: add strict copy size checks (v2) parisc: remove trailing space in messages parisc: ditto sys_accept4 parisc: wire up sys_recvmmsg
2010-03-07Merge branch 'for-linus' of ↵Linus Torvalds2-0/+234
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: Provide generic subsystem-level callbacks PM / Runtime: Document power.runtime_auto and related functions
2010-03-07Merge branch 'for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio: set pci bus master enable bit
2010-03-07Merge branch 'next-i2c-xilinx' into next-i2cBen Dooks3-0/+835
2010-03-07Merge branch 'next-i2c-omap' into next-i2cBen Dooks1-19/+25
2010-03-07Merge branch 'next-i2c-mpc-v8' into next-i2cBen Dooks2-77/+124
2010-03-07i2c: Add support for Xilinx XPS IIC Bus InterfaceRichard Röjfors3-0/+835
This patch adds support for the Xilinx XPS IIC Bus Interface. The driver uses the dynamic mode, supporting to put several I2C messages in the FIFO to reduce the number of interrupts. It has the same feature as ocores, it can be passed a list of devices that will be added when the bus is probed. Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07i2c: omap: Add support for 16-bit registersCory Maccarrone1-19/+25
The current i2c-omap driver is set up for 32-bit registers, which corresponds to most OMAP devices. However, OMAP730/850 based devices use a 16-bit register size. This change modifies the driver to perform a runtime CPU type check to determine the register sizes, and uses a bit shift of either 1 or 2 bits to compute the proper register sizes for all registers. Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07i2c-pnx: fix setting start/stop conditionLuotao Fu1-11/+0
The start/stop condtions are set in different places repetedly in the i2c-pnx driver. Beside in i2c_pnx_start and i2c_pnx_stop the start/stop bit are also set during the transfer of a i2c message in the master_xmit/rcv calls. This is wrong since we can't set the start/stop condition during the transaction of a single message any way. As a matter of fact, the driver will sometimes set both the start and the stop bits at one time. This can be easily reproduced by sending a simple read request like e.g struct i2c_msg msgs[] = { { addr, 0, 1, buf }, { addr, I2C_M_RD, offset, buf } }; While processing the first message the i2c_pnx_master_xmit will set both the start_bit and the stop_bit, which will eventually confuse the slave. Fixed by remove setting start/stop condition from the transmit routines. Signed-off-by: Luotao Fu <l.fu@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07i2c-mpc: add support for the MPC512x processors from FreescaleWolfgang Grandegger2-22/+78
As I2C interrupts must be enabled for the MPC512x by the setup function as well, "fsl,preserve-clocking" is handled in a slighly different way. Also, the old settings are now reported calling dev_dbg(). For the MPC512x the clock setup function of the MPC52xx can be re-used. Furthermore, the Kconfig help has been updated and corrected. Signed-off-by: Wolfgang Grandegger <wg@denx.de> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07i2c-mpc: rename "setclock" initialization functions to "setup"Wolfgang Grandegger1-22/+20
To prepare support for the MPC512x processors from Freescale the "setclock" initialization functions have been renamed to "setup" because I2C interrupts must be enabled for the MPC512x by this function as well. Signed-off-by: Wolfgang Grandegger <wg@denx.de> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07i2c-mpc: use __devinit[data] for initialization functions and dataWolfgang Grandegger1-53/+46
"__devinit[data]" has not yet been used for all initialization functions and data. To avoid truncating lines, the struct "mpc_i2c_match_data" has been renamed to "mpc_i2c_data", which is even the better name. Signed-off-by: Wolfgang Grandegger <wg@denx.de> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07i2c/imx: don't add probe function to the driver structUwe Kleine-König1-1/+0
Having a pointer to the probe function is unnecessary when using platform_driver_probe and yields a section mismatch warning after removing the white list entry "*driver" for { .data$, .data.rel$ } -> { .init.* } mismatches in modpost. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07i2c: Add support for Ux500/Nomadik I2C controllersrinidhi kasagar3-0/+967
This adds support for ST-Ericsson's I2C block found in Ux500 and Nomadik 8815 platforms. Signed-off-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Reviewed-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-07mfd: Fix ucb1x00 build failure for collie_defconfigPeter Huewe1-0/+1
This patch fixes a build failure[1], by adding the missing semaphore.h include References: [1] http://kisskb.ellerman.id.au/kisskb/buildresult/2234322/ Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Fix lpc_sch related depends/selects, fix build errorRandy Dunlap2-1/+4
LPC_SCH is selected by GPI_SCH and I2C_ISCH, even when PCI is not enabled, but LPC_SCH depends on PCI, so make GPI_SCH and I2C_ISCH also depend on PCI. Those 2 selects also need to select what LPC_SCH selects, since kconfig does not follow selects. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Denis Turischev <denis@compulab.co.il> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07gpio: Fix sch_gpio warningSamuel Ortiz1-3/+16
We need to check for gpiochip_remove() errors. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07gpio: add Intel SCH GPIO controller driverDenis Turischev3-0/+299
Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07i2c: convert i2c-isch to platform_deviceDenis Turischev2-42/+28
Convert i2c-isch to platform_device for the lpc mfd core to add it at probe time. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Use completion interrupt for WM831x AUXADCMark Brown1-7/+29
Use the completion interrupt generated by the device rather than polling for conversions to complete. As a backup we still check the status of the AUXADC if we don't get a completion, mostly for systems that don't have the WM831x interrupt infrastructure hooked up. Also reduce the timeout for completion of conversions to 5ms from the previous 10ms, the lower timeout should be sufficient. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Use completion interrupt for WM835x AUXADCMark Brown1-6/+29
Use the completion interrupt generated by the device rather than polling for conversions to complete. As a backup we still check the state of the AUXADC if we don't get a completion, mostly for systems that don't have the WM8350 interrupt infrastructure hooked up. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Introduce remove_script function for twl4030Mike Turquette1-0/+50
New function twl4030_remove_script(u8 flags) takes a script type as defined in twl.h and prevents any script already loaded in that position from running. This is accomplished by programming SEQ_ADD_* to 0x3f, the END_OF_SCRIPT value, where SEQ_ADD_* is determined by flags. (Future) users of this function include OMAP board files for machines facing a race condition between sleep and warm reset. Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd/mmc: SDHI Kconfig updateMagnus Damm2-2/+2
Enable the sh_mobile_sdhi mfd driver on SH-Mobile ARM processors. While at it, make CONFIG_TMIO_MMC depend on CONFIG_MFD_SH_MOBILE_SDHI. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: sh_mobile_sdhi MMC_CAP_MMC_HIGHSPEED supportMagnus Damm1-3/+3
Add MMC_CAP_MMC_HIGHSPEED support to the sh_mobile_sdhi driver. Also, remove type cast and FIXME comment. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07gpiolib: Force wm831x GPIOs into GPIO mode when requestedMark Brown1-2/+4
This is the chip default but it's possible the bootloader or OTP will have been configured to a different mode (eg, to provide feedback during startup). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Add WM831x revision B supportMark Brown2-5/+31
Revision B of the WM831x devices changes the sense of the tristate bit for GPIO configuration, inverting it to become an enable instead. Take account of this in the gpiolib driver. A current sink regulation status bit has also been added in revision B, add a flag indicating if it's present but don't use it yet. This revision also adds an interrupt on key up for the ON pin event which the existing code is able to take advantage of. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07gpiolib: Correct debugfs display of WM831x GPIO inversionMark Brown1-1/+1
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07gpiolib: Actually set output state in wm831x_gpio_direction_output()Mark Brown1-7/+15
wm831x_gpio_direction_output() ignored the state passed into it. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07tmio_mmc: Balance cell enable()/disable() callsMagnus Damm1-2/+8
This patch adds cell->disable() calls to the tmio-mmc probe() error handling and the remove() function. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07tmio_mmc: Use 100ms mmc_detect_change() delayMagnus Damm1-1/+1
This patch changes the tmio_mmc driver to wait 100ms before checking the card detect status. This type of delay is quite common among mmc drivers, it seems that most hardware platforms need to give the hardware some time to settle before checking card availabilty. Hotplug is half-broken without this patch on the sh7724 Ecovec board. Hot insertion seems ok but eject is never detected without this patch. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07tmio_mmc: Add MMC_CAP_MMC_HIGHSPEED support V2Yusuke Goda1-0/+1
Enable MMC_CAP_XX support in the tmio_mmc driver if pdata->capabilities is set. Signed-off-by: Yusuke Goda <goda.yusuke@renesas.com> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07tmio_mmc: Keep card-detect interrupts enabledGuennadi Liakhovetski1-4/+2
On SuperH platforms the SDHI controller does not produce any command IRQs after a completed IO. This leads to card-detect interrupts staying disabled. Do not disable card-detect interrupts on DATA IRQs. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Add twl6030 base addr for ID0, ID1, ID2Balaji T K1-2/+5
Add base address for generic slave ID0, ID1, ID2 and introduced one more entry to align RTC module number between twl4030 and twl6030 Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Disable TWL4030/5030 I2C1/I2C4 internal pull-upsMoiz Sonasath1-0/+13
This patch disables TWL4030/5030 I2C1 adn I2C4(SR) internal pull-up, to use only the external HW resistor >=470 Ohm for the assured functionality in HS mode. While testing the I2C in High Speed mode, it was discovered that without a proper pull-up resistor, there is data corruption during multi-byte transfer. RTC(time_set) test case was used for testing. From the analysis done, it was concluded that ideally we need a pull-up of 1.6k Ohm(recomended) or atleast 470 Ohm or greater for assured performance in HS mode. Signed-off-by: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Allen Pais <allen.pais@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Introduce lpc_sch for Intel SCH LPC bridgeDenis Turischev3-0/+143
Intel Poulsbo (SCH) chipset LPC bridge controller contains several functions. Creating and MFD driver for the LPC bridge controller allows simultaneous use of SMBus and GPIO interfaces on the SCH. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07mfd: Check for ACPI conflictsSamuel Ortiz1-0/+5
For ACPI based systems, we should check for ACPI conflicts when adding the platform devices. The test will always succeed for non ACPI platforms. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 11:10:20 +0000