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2006-05-26[PATCH] scx200_acb: fix section mismatch warningRandy Dunlap1-1/+1
WARNING: drivers/i2c/busses/scx200_acb.o - Section mismatch: reference to .init.text: from .text after 'scx200_add_cs553x' (at offset 0x528) Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-09[PATCH] scx200_acb: Fix for the CS5535 errataJordan Crouse1-0/+7
This is a fix for the CS5535 errata 111: When the SMBus controller tries to access a non-existing device, it sets the NEGACK bit, SMBus I/O offset 01h[4], to 1 after it detects no acknowledge at the ninth clock. The specification states that the bit can be cleared by writing a 1 to it, but under certain circumstances it is possible for this bit to not clear. Writing a 0 to the bit resets the internal state machine and clears the issue. Since all writable bits in ACBST are W1C bits (write-one-to-clear) the second write doesn't affect any other logic except the buggy NEGACK state machine. The second write clears an internal register which is responsible for "overwriting" the NEGACK bit in ACBST. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-09[PATCH] scx200_acb: Fix resource name use after freeJean Delvare1-5/+1
We can't pass a string on the stack to request_region. As soon as we leave the function that stack is gone and the string is lost. Let's use the same string we identify the i2c_adapter with instead, it's more simple, more consistent, and just works. This is the second half of fix to bug #6445. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-09[PATCH] scx200_acb: Fix return on init errorJean Delvare1-0/+3
The scx200_acb driver shouldn't return failure after initialization if it successfully registered at least one i2c_adapter, else we are leaking resources. The driver was OK in that respect up to 2.6.16, a recent change broke it. This is part of the fix to bug #6445. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-20[PATCH] i2c-i801: Fix resume when PEC is usedJean Delvare1-0/+5
Fix for bug #6395: Fail to resume on Tecra M2 with ADM1032 and Intel 82801DBM The BIOS of the Tecra M2 doesn't like it when it has to reboot or resume after the i2c-i801 driver has left the SMBus in PEC mode. The most simple fix is to clear the PEC bit after after every transaction. That's what this driver was doing up to 2.6.15 (inclusive). Thanks to Daniele Gaffuri for the very good report. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] m41t00: fix bitmasks when writing to chipDavid Barksdale1-4/+4
Fix the bitmasks used when writing to the M41T00 registers. The original code used a mask of 0x7f when writing to each register, this is incorrect and probably the result of a copy-paste error. As a result years from 1980 to 1999 will be read back as 2000 to 2019. Signed-off-by: David Barksdale <amatus@ocgnet.org> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-14[PATCH] i2c-parport: Make type parameter mandatoryMark M. Hoffman4-6/+19
This patch forces the user to specify what type of adapter is present when loading i2c-parport or i2c-parport-light. If none is specified, the driver init simply fails - instead of assuming adapter type 0. This alleviates the sometimes lengthy boot time delays which can be caused by accidentally building one of these into a kernel along with several i2c slave drivers that have lengthy probe routines (e.g. hwmon drivers). Kconfig and documentation updated accordingly. Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] i2c-sis96x: Remove an init-time log messageMark M. Hoffman1-8/+0
This patch removes an init-time kernel log message. http://marc.theaimsgroup.com/?l=linux-kernel&m=114232987208628&w=3 Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] i2c: convert m41t00 to use a workqueueMark A. Greer1-7/+9
The m41t00 i2c/rtc driver currently uses a tasklet to schedule interrupt-level writes to the rtc. This patch causes the driver to use a workqueue instead. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] i2c: convert ds1374 to use a workqueueJean Delvare1-6/+10
A tasklet is not suitable for what the ds1374 driver does: neither sleeping nor mutex operations are allowed in tasklets, and ds1374_set_tlet may do both. We can use a workqueue instead, where both sleeping and mutex operations are allowed. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Randy Vinson <rvinson@mvista.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-27[PATCH] RTC subsystem: I2C cleanupAlessandro Zummo5-1181/+0
This patch, completely optional, removes from drivers/i2c/chips all the drivers that are implemented in the new RTC subsystem. It should be noted that none of the current driver is actually integrated, i.e. usable without further patches. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] s/;;/;/gAlexey Dobriyan1-1/+1
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-23[PATCH] I2C: i2c-ixp4xx: Add hwmon classAlessandro Zummo1-0/+1
This patch adds I2C_CLASS_HWMON to the ixp4xx bus driver. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] I2C: i2c-piix4: Add Broadcom HT-1000 supportMartin Devera2-2/+6
Add Broadcom HT-1000 south bridge's PCI ID to i2c-piix driver. Note that at least on Supermicro H8SSL it uses non-standard SMBHSTCFG = 3 and standard values like 0 or 9 causes hangup. Signed-off-by: Martin Devera <devik@cdi.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] I2C: i2c-amd756-s4882: Improve static mutex initializationJean Delvare1-3/+1
Static mutexes can be initialized at declaration time. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-03-23[PATCH] I2C: i2c-ali1535: Drop redundant mutexJean Delvare1-4/+0
Drop a redundant mutex in driver i2c-ali1535. The struct i2c_adapter includes a mutex for the same purpose, operated by i2c-core. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: Cleanup isp1301_omapJean Delvare1-2/+0
Drop unused rogue i2c driver ID and nonsensical i2c class. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: Fix i2c-ite name initializationJean Delvare1-3/+1
Properly set the name member of the i2c_adapter structure of the ite i2c adapter driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: Drop the i2c-frodo bus driverJean Delvare1-85/+0
Drop the i2c-frodo bus driver. It isn't referenced by the build system, and depends on code which was never included in 2.6 kernels. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: Optimize core_lists mutex usageJean Delvare1-6/+5
Stop holding the core_lists mutex when we don't actually need it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: Semaphore to mutex conversions, part 3Jean Delvare3-6/+6
Cleanup after the semaphores to mutexes conversions in the i2c subsystem. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: Semaphore to mutex conversions, part 2Ingo Molnar7-61/+65
semaphore to mutex conversion. the conversion was generated via scripts, and the result was validated automatically via a script as well. build tested. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: Speed up block transfersJean Delvare1-9/+6
Speed up i2c_smbus_write_block_data and i2c_smbus_read_i2c_block_data a bit by using memcpy instead of an explicit loop. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] I2C: fix sx200_acb build on other archesJean Delvare1-1/+1
scx200_acb is only useful on a few Geode-based systems, and won't compile on non-x86 systems due to the lack of asm/msr.h, as reported by Andrew Morton. Thus, we should make that driver depend on X86. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-03-23[PATCH] i2c: scx200_acb minimal documentation updateBen Gardner1-2/+3
scx200_acb: Minimal documentation update Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: scx200_acb fix and speed up the poll loopBen Gardner1-11/+2
scx200_acb: Fix and speed up the poll loop Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: scx200_acb add support for the CS5535/CS5536Ben Gardner1-14/+43
scx200_acb: Add support for the CS5535/CS5536 Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-03-23[PATCH] i2c: scx200_acb remove use of lock_kernelBen Gardner1-6/+7
scx200_acb: remove use of lock_kernel() Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: scx200_acb refactor/simplify codeBen Gardner1-44/+29
scx200_acb: refactor/simplify code (no functional changes) Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: scx200_acb debug log cleanupBen Gardner1-25/+17
scx200_acb: debug log cleanup Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] i2c: scx200_acb whitespace and comment cleanupBen Gardner1-47/+43
scx200_acb: Whitespace and comment cleanup Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] I2C: Convert i2c to mutexesArjan van de Ven4-24/+28
The patch below converts a few i2c semaphores to mutexes Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] handle errors returned by platform_get_irq*()David Vrabel3-2/+16
platform_get_irq*() now returns on -ENXIO when the resource cannot be found. Ensure all users of platform_get_irq*() handle this error appropriately. Signed-off-by: David Vrabel <dvrabel@arcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-02-13[PATCH] i2c: Drop outdated probe/remove code in i2c-isaJean Delvare1-12/+0
Probe and remove methods are now defined at bus level. No more need to redefine them at driver level in i2c-isa. This lets us get rid of these annoying messages: Driver 'it87-isa' needs updating - please use bus_type methods Thanks to Nicolas Mailhot for reporting the problem and testing the fix. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-02-06[PATCH] i2c: Use ARRAY_SIZE macroTobias Klauser3-12/+6
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]). Some trailing whitespaces are also removed. Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-02-06[PATCH] i2c: Use module_param in i2c-algo-sibyteEric Sesterhenn1-1/+1
this patch changes MODULE_PARM usage to module_param in i2c-algo-sibyte.c Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-02-06[PATCH] I2C: Resurrect i2c_smbus_write_i2c_block_data.Jean Delvare1-0/+15
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-02-06[PATCH] i2c-i801: I2C patch for Intel ICH8Jason Gaston2-0/+3
This patch adds the Intel ICH8 DID to the i2c-i801.c and Kconfig files for I2C support. Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13[PATCH] Add i2c_bus_type probe and remove methodsRussell King1-11/+9
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-12[ARM] 3237/1: PXA I2C driver updatesRichard Purdie1-0/+10
Patch from Richard Purdie This patch adds a check to see if the pxa i2c interface is enabled before allowing it to be used and resets it if found to be disabled. This automatically restores the interface if the device has been suspended and resumed without causing any suspend/resume call ordering issues. The patch also fixes a build warning and adds an appropriate module licence (the module is gpl according to the header). Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds6-1193/+298
2006-01-09[PATCH] 2/5 powerpc: Rework PowerMac i2c part 2Benjamin Herrenschmidt6-1205/+298
This is the continuation of the previous patch. This one removes the old PowerMac i2c drivers (i2c-keywest and i2c-pmac-smu) and replaces them both with a single stub driver that uses the new PowerMac low i2c layer. Now that i2c-keywest is gone, the low-i2c code is extended to support interrupt driver transfers. All i2c busses now appear as platform devices. Compatibility with existing drivers should be maintained as the i2c bus names have been kept identical, except for the SMU bus but in that later case, all users has been fixed. With that patch added, matching a device node to an i2c_adapter becomes trivial. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] 1/5 powerpc: Rework PowerMac i2c part 1Benjamin Herrenschmidt1-4/+13
This is the first part of a rework of the PowerMac i2c code. It completely reworks the "low_i2c" layer. It is now more flexible, supports KeyWest, SMU and PMU i2c busses, and provides functions to match device nodes to i2c busses and adapters. This patch also extends & fix some bugs in the SMU driver related to i2c support and removes the clock spreading hacks from the pmac feature code rather than adapting them to the new API since they'll be replaced by the platform function code completely in patch 3/5 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-08[PATCH] IRQ type flagsRussell King1-5/+6
Some ARM platforms have the ability to program the interrupt controller to detect various interrupt edges and/or levels. For some platforms, this is critical to setup correctly, particularly those which the setting is dependent on the device. Currently, ARM drivers do (eg) the following: err = request_irq(irq, ...); set_irq_type(irq, IRQT_RISING); However, if the interrupt has previously been programmed to be level sensitive (for whatever reason) then this will cause an interrupt storm. Hence, if we combine set_irq_type() with request_irq(), we can then safely set the type prior to unmasking the interrupt. The unfortunate problem is that in order to support this, these flags need to be visible outside of the ARM architecture - drivers such as smc91x need these flags and they're cross-architecture. Finally, the SA_TRIGGER_* flag passed to request_irq() should reflect the property that the device would like. The IRQ controller code should do its best to select the most appropriate supported mode. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-09[PATCH] powerpc: Unify udbg (#2)Benjamin Herrenschmidt1-11/+14
This patch unifies udbg for both ppc32 and ppc64 when building the merged achitecture. xmon now has a single "back end". The powermac udbg stuff gets enriched with some ADB capabilities and btext output. In addition, the early_init callback is now called on ppc32 as well, approx. in the same order as ppc64 regarding device-tree manipulations. The init sequences of ppc32 and ppc64 are getting closer, I'll unify them in a later patch. For now, you can force udbg to the scc using "sccdbg" or to btext using "btextdbg" on powermacs. I'll implement a cleaner way of forcing udbg output to something else than the autodetected OF output device in a later patch. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-07[ARM] Move asm/hardware/clock.h to linux/clk.hRussell King1-1/+1
This is needs to be visible to other architectures using the AMBA bus and peripherals. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-07Merge with Linus' kernel.Russell King20-178/+165
2006-01-05[PATCH] i2c: i2c-mv64xxx fix transaction abortionMark A. Greer1-18/+15
When the i2c-mv64xxx i2c driver is signalled to abort a transaction, it aborts it immediately by issuing a stop condition on the bus. This violates the i2c protocol and can cause what appears to be an i2c bus hang. This patch delays issuing the stop condition until the i2c device can reasonably expect a stop condition. Also includes a minor fixup. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-01-05[PATCH] i2c: i2c-nforce2 add nforce4 MCP-04 device IDJean Delvare1-0/+2
One more supported PCI ID for the i2c-nforce2 driver. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-05[PATCH] i2c: i2c-ibm_iic add I2C_CLASS_HWMONMartin Hicks1-0/+1
Add the ibm_iic driver to the HWMON class so it will scan the bus for connected hardware monitor sensors. Signed-off-by: Martin Hicks <mort@bork.org> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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