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2009-06-16Merge branch 'i2c-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: therm_windtunnel: Convert to a new-style i2c driver therm_adt746x: Convert to a new-style i2c driver windfarm: Convert to new-style i2c drivers therm_pm72: Convert to a new-style i2c driver i2c-viapro: Add new PCI device ID for VX855 i2c/chips: Move max6875 to drivers/misc/eeprom i2c: Do not give adapters a default parent i2c: Do not probe for TV chips on Voodoo3 adapters i2c: Retry automatically on arbitration loss i2c: Remove void casts
2009-06-15Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (103 commits) powerpc: Fix bug in move of altivec code to vector.S powerpc: Add support for swiotlb on 32-bit powerpc/spufs: Remove unused error path powerpc: Fix warning when printing a resource_size_t powerpc/xmon: Remove unused variable in xmon.c powerpc/pseries: Fix warnings when printing resource_size_t powerpc: Shield code specific to 64-bit server processors powerpc: Separate PACA fields for server CPUs powerpc: Split exception handling out of head_64.S powerpc: Introduce CONFIG_PPC_BOOK3S powerpc: Move VMX and VSX asm code to vector.S powerpc: Set init_bootmem_done on NUMA platforms as well powerpc/mm: Fix a AB->BA deadlock scenario with nohash MMU context lock powerpc/mm: Fix some SMP issues with MMU context handling powerpc: Add PTRACE_SINGLEBLOCK support fbdev: Add PLB support and cleanup DCR in xilinxfb driver. powerpc/virtex: Add ml510 reference design device tree powerpc/virtex: Add Xilinx ML510 reference design support powerpc/virtex: refactor intc driver and add support for i8259 cascading powerpc/virtex: Add support for Xilinx PCI host bridge ...
2009-06-15i2c-viapro: Add new PCI device ID for VX855Harald Welte
The south bridge of the VIA VX855 chipset has a different PCI Device ID so i2c-viapro.c needs to be updated with this. Signed-off-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-15i2c/chips: Move max6875 to drivers/misc/eepromWolfram Sang
This driver only reads the user EEPROM of that chip, so we can move it to the eeprom-directory in order to further clean up (and later remove) drivers/i2c/chips. The Kconfig text was updated to match the current functionality, dropping the meanwhile obsoleted parts. Defconfigs have been adapted. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Ben Gardner <gardner.ben@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-15i2c: Do not give adapters a default parentJean Delvare
We don't need to give adapters a parent if they don't have one. The driver core will put them in the virtual device directory and all will be fine. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-15i2c: Do not probe for TV chips on Voodoo3 adaptersJean Delvare
There's no point in giving the I2C bus of Voodoo3 adapters a class value, there's no video chip driver checking for it anymore. If support is ever needed, the video device should be instantiated explicitly rather than probed. To the best of my knowledge the only video chip that can be found on these boards is a BT869 video encoder, for which no support exists currently. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
2009-06-15i2c: Retry automatically on arbitration lossClifford Wolf
Some small changes in i2c core to retry i2c xfers until either the maximum number of retries or the timeout is hit. Signed-off-by: Clifford Wolf <clifford@clifford.at> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-15i2c: Remove void castsJack Stone
Remove uneeded void casts. Signed-off-by: Jack Stone <jwjstone@fastmail.fm> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-14Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits) MAINTAINERS: EB110ATX is not ebsa110 MAINTAINERS: update Eric Miao's email address and status fb: add support of LCD display controller on pxa168/910 (base layer) [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines [ARM] 5544/1: Trust PrimeCell resource sizes [ARM] pxa/sharpsl_pm: cleanup of gpio-related code. [ARM] pxa/sharpsl_pm: drop set_irq_type calls [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific [ARM] sa1100: remove unused collie_pm.c [ARM] pxa: fix the conflicting non-static declarations of global_gpios[] [ARM] 5550/1: Add default configure file for w90p910 platform [ARM] 5549/1: Add clock api for w90p910 platform. [ARM] 5548/1: Add gpio api for w90p910 platform [ARM] 5551/1: Add multi-function pin api for w90p910 platform. [ARM] Make ARM_VIC_NR depend on ARM_VIC [ARM] 5546/1: ARM PL022 SSP/SPI driver v3 ARM: OMAP4: SMP: Update defconfig for OMAP4430 ARM: OMAP4: SMP: Enable SMP support for OMAP4430 ...
2009-06-13i2c-ocores: Can add I2C devices to the busRichard Röjfors
There is sometimes a need for the ocores driver to add devices to the bus when installed. i2c_register_board_info can not always be used, because the I2C devices are not known at an early state, they could for instance be connected on a I2C bus on a PCI device which has the Open Cores IP. i2c_new_device can not be used in all cases either since the resulting bus nummer might be unknown. The solution is the pass a list of I2C devices in the platform data to the Open Cores driver. This is useful for MFD drivers. Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-13i2c-s3c2410: move to using platform idtable to match devicesBen Dooks
Change to using platform id table to match either of the two supported platform device names in the driver. This simplifies the driver init and exit code Note, log messages will now be prefixed with 's3c-i2c' instead of the driver name, so output will be of the form of: s3c-i2c s3c2440-i2c.0: slave address 0x10 Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-13i2c: OMAP3: Better noise suppression for fast/standard modesAaro Koskinen
Use longer noise filter period for fast and standard mode. Based on an earlier patch by Eero Nurkkala. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-13i2c: OMAP2/3: Fix scll/sclh calculationsAaro Koskinen
Fix scll/sclh calculations for HS and fast modes. Currently the driver uses equal (roughly) low/high times which will result in too short low time. OMAP3430 TRM gives the following equations: F/S: tLow = (scll + 7) * internal_clk tHigh = (sclh + 5) * internal_clk HS: tLow = (scll + 7) * fclk tHigh = (sclh + 5) * fclk Furthermore, the I2C specification sets the following minimum values for HS tLow/tHigh for capacitive bus loads 100 pF (maximum speed 3400) and 400 pF (maximum speed 1700): speed tLow tHigh 3400 160 ns 60 ns 1700 320 ns 120 ns and for F/S: speed tLow tHigh 400 1300 ns 600 ns 100 4700 ns 4000 ns By using duty cycles 33/66 (HS, F) and 50/50 (S) we stay above these minimum values. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-13i2c: Blackfin TWI: implement I2C_FUNC_SMBUS_I2C_BLOCK functionalityMichael Hennerich
Some drivers need i2c_smbus_read_i2c_block_data() functionality, so add support for it to the Blackfin I2C bus driver. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> [ben-linux@fluff.org: shortened subject] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-13i2c: Blackfin TWI: fix transfer errors with repeat startFrank Shew
We have a custom BF537 board with an I2C RTC (MAX DS3231) running uclinux 2007R1 for some time. Recently during migration to 2008R1.5-RC3 we losted access to the RTC. The RTC driver calls 'i2c_transfer()' which in turns calls 'bfin_twi_master_xfer()' in i2c-bfin-twi.c. Compared with 2007R1, it looks like the 2008R1.5 version of i2c-bin-twi.c has a new mode 'TWI_I2C-MODE_REPEAT' which corresponds to the Repeat Start Condition described in the HRM. However, according to the HRM, at XMIT or RECV interrupt and when the data count is 0, not only is the RESTART bit supposed to be set, but MDIR must also be set if the next operation is a receive sequence, and cleared if not. Currently there is no code that looks at the I2C_M_RD bit in the flag from the next cur_msg and set/clear the MDIR flag accordingly at the same time that the RSTART bit is set. Instead, MDIR is set or cleared (by OR'ing with 0?) after the RESTART bit has been cleared during handling of MCOMP interrupt. It appears that this is causing our failure with reading the RTC, as a quick patch to set/clear MDIR when RESTART is set seem to solve our problem. Signed-off-by: Frank Shew <fshew@geometrics.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org> [ben-linux@fluff.org: shorted subject] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-13i2c: Blackfin TWI: fix REPEAT START mode doesn't repeatSonic Zhang
Avoid rewrite TWI MASTER_CTL reg when issue next message In i2c repeat transfer mode, byte count of next message should be filled into part of the TWI MASTER_CTL reg when interrupt MCOMP of last message transfer is triggered. But, other bits in this reg should not be touched. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org> [ben-linux@fluff.org: shorted subject] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-13i2c: Blackfin TWI: make sure we don't end up with a CLKDIV=0Michael Hennerich
Make sure we don't end up with an invalid CLKDIV=0 in case someone specifies 20kHz SCL or less (5 * 1024 / 20 = 0x100). Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org> [ben-linux@fluff.org: shortened subject line] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-12Merge commit 'origin/master' into nextBenjamin Herrenschmidt
Manual merge of: arch/powerpc/kernel/asm-offsets.c
2009-06-05[ARM] pxa: move mach/i2c.h to plat/i2c.hEric Miao
Signed-off-by: Paul Shen <paul.shen@marvell.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-06-05[ARM] pxa: add platform device ID table to pxa i2c driverEric Miao
Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-06-04i2c: Fix confusing i2c-ibm_iic messageSean MacLennan
The i2c-ibm_iic driver printed messages in an odd order that seemed to list devices before the driver was probed. Here is an example: at24 0-0052: 512 byte 24c04 EEPROM (writable) ibm-iic ef600700.i2c: using standard (100 kHz) mode ad7414 0-004a: chip found This changes the order to print the i2c driver message before scanning for devices so that the logs show the driver, then the devices. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-05-26Merge branch 'sh/clkfwk'Paul Mundt
2009-05-13sh: clkfwk: module_clk -> peripheral_clk rename.Paul Mundt
For consistenct naming, and to allow us to fix up some confusion in the SH-Mobile clock framework, amongst other places. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12Merge branch 'i2c-for-2630-rc5' of git://aeryn.fluff.org.uk/bjdooks/linuxLinus Torvalds
* 'i2c-for-2630-rc5' of git://aeryn.fluff.org.uk/bjdooks/linux: i2c-cpm: Pass dev ptr to dma_*_coherent rather than NULL i2c: Enable i2c-s3c2410 for S3C64XX too i2c-mpc: bug fix for MPC52xx clock setting and printout i2c-pxa.c: timeouts off by 1
2009-05-12i2c-cpm: Pass dev ptr to dma_*_coherent rather than NULLMark Ware
Recent DMA changes result in a BUG() when NULL is passed to dma_alloc_coherent in place of a device. Signed-off-by: Mark Ware <mware@elphinstone.net> [ben-linux@fluff.org: fix patch moves] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-12i2c: Enable i2c-s3c2410 for S3C64XX tooMark Brown
This controller is also present on the S3C64xx series processors so enable the driver in Kconfig for those platforms. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-12i2c-mpc: bug fix for MPC52xx clock setting and printoutWolfgang Grandegger
The clock setting did not work for the MPC52xx due to a stupid bug. Furthermore, the dev info output "clock=0" for old device trees was misleading. This patch fixes both issues. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-05i2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30)Enrik Berkhan
Currently, the i2c-algo-pca driver does nothing if the chip enters state 0x30 (Data byte in I2CDAT has been transmitted; NOT ACK has been received). Thus, the i2c bus connected to the controller gets stuck afterwards. I have seen this kind of error on a custom board in certain load situations most probably caused by interference or noise. A possible reaction is to let the controller generate a STOP condition. This is documented in the PCA9564 data sheet (2006-09-01) and the same is done for other NACK states as well. Further, state 0x38 isn't handled completely, either. Try to do another START in this case like the data sheet says. As this couldn't be tested, I've added a comment to try to reset the chip if the START doesn't help as suggested by Wolfram Sang. Signed-off-by: Enrik Berkhan <Enrik.Berkhan@ge.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-05-05i2c-algo-bit: Fix timeout testDave Airlie
When fetching DDC using i2c algo bit, we were often seeing timeouts before getting valid EDID on a retry. The VESA spec states 2ms is the DDC timeout, so when this translates into 1 jiffie and we are close to the end of the time period, it could return with a timeout less than 2ms. Change this code to use time_after instead of time_after_eq. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-05-05i2c: Timeouts off by 1Roel Kluin
with while (timeout++ < MAX_TIMEOUT); timeout reaches MAX_TIMEOUT + 1 after the loop, so the tests below are off by one. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-05-03i2c-pxa.c: timeouts off by 1Roel Kluin
With `while (timeout--)' timeout reaches -1 after the loop, so the tests below are off by one. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-13i2c: Let new-style drivers implement attach_adapterJean Delvare
While it isn't the way the standard device binding model works, it is OK for new-style drivers to implement attach_adapter. It may help convert the renaming legacy drivers to new style drivers faster. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <dbrownell@users.sourceforge.net>
2009-04-13i2c-voodoo3: Deprecate in favor of tdfxfbJean Delvare
Support for I2C/DDC was recently added to the tdfxfb driver, which means that the i2c-voodoo3 driver can be deprecated. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
2009-04-13i2c-algo-pca: Fix use of uninitialized variable in debug messageJean Delvare
A recent change broke debugging of pca_xfer(), fix it. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2009-04-07i2c: imx: Make disable_delay a per-device variableWolfram Sang
'disable_delay' was static which is wrong as it is calculated using the per-device bus speed. This patch turns 'disable_delay' into a per-device variable. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Darius Augulis <augulis.darius@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: xtensa s6000 i2c driverOskar Schirmer
Support for the s6000 on-chip i2c controller. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-mpc: make I2C bus speed configurableWolfgang Grandegger
This patch makes the I2C bus speed configurable by using the I2C node property "clock-frequency". If the property is not defined, the old fixed clock settings will be used for backward comptibility. The generic I2C clock properties, especially the CPU-specific source clock pre-scaler are defined via the OF match table: static const struct of_device_id mpc_i2c_of_match[] = { ... {.compatible = "fsl,mpc8543-i2c", .data = &(struct fsl_i2c_match_data) { .setclock = mpc_i2c_setclock_8xxx, .prescaler = 2, }, }, The "data" field defines the relevant I2C setclock function and the relevant pre-scaler for the I2C source clock frequency. It uses arch-specific tables and functions to determine resonable Freqency Divider Register (fdr) values for MPC83xx, MPC85xx, MPC86xx, MPC5200 and MPC5200B. The i2c->flags field and the corresponding FSL_I2C_DEV_* definitions have been removed as they are obsolete. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-mpc: use dev based printout functionWolfgang Grandegger
This patch used the dev_dbg, dev_err, etc. functions for debug and error output instead of printk and pr_debug. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-mpc: various coding style fixesWolfgang Grandegger
Fix errors reported by checkpatch (indention, long lines, trailing white space, etc.). Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: imx: Add missing request_mem_region in probe()Darius Augulis
Signed-off-by: Darius Augulis <augulis.darius@gmail.com> [ben-linux@fluff.org: fix minor patch fault in remove] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c: i2c-s3c2410: Initialise Samsung I2C controller earlyMark Brown
This is required in order to ensure that core system devices such as voltage regulators attached via I2C are avaiable early in boot. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c-s3c2410: Simplify bus frequency calculationDaniel Silverstone
The platform data for the i2c-s3c2410 driver used to allow a min, max and desired frequency for the I2C bus. This patch reduces it to simply a desired frequency ceiling and corrects all the uses of the platform data appropriately. This means, for example, that on a system with a 66MHz fclk, a request for 100KHz will achieve 65KHz which is safe and acceptable, rather than 378KHz which it would have achieved without this change. Signed-off-by: Simtec Linux Team <linux@simtec.co.uk> Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk> [ben-linux@fluff.org: tidy subject and description] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07i2c-s3c2410: sda_delay should be in ns, not clock ticksBen Dooks
The sda_delay field should be specified in ns, not in clock ticks as when using cpufreq we could be changing the bus rate. Signed-off-by: Ben Dooks <ben@simtec.co.uk>
2009-04-07i2c: iMX/MXC supportDarius Augulis
Implementation of I2C Adapter/Algorithm Driver for I2C Bus integrated in Freescale's i.MX/MXC processors. Signed-off-by: Darius Augulis <augulis.darius@gmail.com> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-06i2c: Delete unused i2c-algo-sgi helper moduleJean Delvare
The i2c-algo-sgi code was merged into the vino driver, so we can delete it now. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-03-30Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: hwmon: (fschmd) Add support for the FSC Hades IC hwmon: (fschmd) Add support for the FSC Syleus IC i2c-i801: Instantiate FSC hardware montioring chips dmi: Let dmi_walk() users pass private data hwmon: Define a standard interface for chassis intrusion detection Move the pcf8591 driver to hwmon hwmon: (w83627ehf) Only expose in6 or temp3 on the W83667HG hwmon: (w83627ehf) Add support for W83667HG hwmon: (w83627ehf) Invert fan pin variables logic hwmon: (hdaps) Fix Thinkpad X41 axis inversion hwmon: (hdaps) Allow inversion of separate axis hwmon: (ds1621) Clean up documentation hwmon: (ds1621) Avoid unneeded register access hwmon: (ds1621) Clean up register access hwmon: (ds1621) Reorder code statements
2009-03-30i2c-i801: Instantiate FSC hardware montioring chipsHans de Goede
Detect various FSC hwmon IC's based on DMI tables and then let the i2c-i801 driver instantiate the i2c client devices. Note that some of the info in the added table is indentical for all rows, still this is kept in the table to keep the code general and thus (hopefully) easily extensible in the future. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-03-30Move the pcf8591 driver to hwmonJean Delvare
Directory drivers/i2c/chips is going away, so drivers there must find new homes. For the pcf8591 driver, the best choice seems to be the hwmon subsystem. While the Philips PCF8591 device isn't a typical hardware monitoring chip, its DAC interface is compatible with the hwmon one, so it fits somewhat. If a better subsystem is ever created for ADC/DAC chips, the driver could be moved there. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Aurelien Jarno <aurelien@aurel32.net>
2009-03-30Merge commit 'origin/master' into nextBenjamin Herrenschmidt
Manual merge of: arch/powerpc/include/asm/elf.h drivers/i2c/busses/i2c-mpc.c
2009-03-28Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c-core: Some style cleanups i2c-piix4: Add support for the Broadcom HT1100 chipset i2c-piix4: Add support to SB800 SMBus changes i2c-pca-platform: Use defaults if no platform_data given i2c-algo-pca: Use timeout for checking the state machine i2c-algo-pca: Rework waiting for a free bus i2c-algo-pca: Add PCA9665 support i2c: Adapt debug macros for KERN_* constants i2c-davinci: Fix timeout handling i2c: Adapter timeout is in jiffies i2c: Set a default timeout value for all adapters i2c: Add missing KERN_* constants to printks i2c-algo-pcf: Handle timeout correctly i2c-algo-pcf: Style cleanups eeprom/at24: Remove EXPERIMENTAL i2c-nforce2: Add support for MCP67, MCP73, MCP78S and MCP79 i2c: Clarify which clients are auto-removed i2c: Let checkpatch shout on users of the legacy model i2c: Document the different ways to instantiate i2c devices
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