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* [ARM] 4017/1: [Jornada7xx] - Updating Jornada720.cKristoffer Ericson2006-12-13
| | | | | | | | | | | | | | | | * HP Jornada 720 uses epson 1356 chip for graphics. This chip is compatible with s1d13xxxfb driver. * HP Jornada 720 uses a Microprocessor Control Unit to talk to various hardware. We add it as a platform device in jornada720_init() * We provide pm_suspend() to avoid unresolved symbols in apm.o. We are unable to truly suspend now, hence the stub. * Speaker/microphone enabling got removed because it will be placed in the alsa driver. Signed-off-by: Filip Zyzniewski <(address hidden)> Signed-off-by: Kristoffer Ericson <(address hidden)> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3992/1: i.MX/MX1 CPU Frequency scaling supportPavel Pisa2006-12-13
| | | | | | | | | Support to change MX1 CPU frequency at runtime. Tested on PiKRON's PiMX1 board and seems to be fully stable up to 200 MHz end even as low as 8 MHz. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Provide a method to alter the control registerRussell King2006-12-13
| | | | | | | | | | i.MX needs to tweak the control register to support CPU frequency scaling. Rather than have folk blindly try and change the control register by writing to it and then wondering why it doesn't work, provide a method (which is safe for UP only, and therefore only available for UP) to achieve this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4016/1: prefetch macro is wrong wrt gcc's "delete-null-pointer-checks"Nicolas Pitre2006-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | optimization The gcc manual says: |`-fdelete-null-pointer-checks' | Use global dataflow analysis to identify and eliminate useless | checks for null pointers. The compiler assumes that dereferencing | a null pointer would have halted the program. If a pointer is | checked after it has already been dereferenced, it cannot be null. | Enabled at levels `-O2', `-O3', `-Os'. Now the problem can be seen with this test case: #include <linux/prefetch.h> extern void bar(char *x); void foo(char *x) { prefetch(x); if (x) bar(x); } Because the constraint to the inline asm used in the prefetch() macro is a memory operand, gcc assumes that the asm code does dereference the pointer and the delete-null-pointer-checks optimization kicks in. Inspection of generated assembly for the above example shows that bar() is indeed called unconditionally without any test on the value of x. Of course in the prefetch case there is no real dereference and it cannot be assumed that a null pointer would have been caught at that point. This causes kernel oopses with constructs like hlist_for_each_entry() where the list's 'next' content is prefetched before the pointer is tested against NULL, and only when gcc feels like applying this optimization which doesn't happen all the time with more complex code. It appears that the way to prevent delete-null-pointer-checks optimization to occur in this case is to make prefetch() into a static inline function instead of a macro. At least this is what is done on x86_64 where a similar inline asm memory operand is used (I presume they would have seen the same problem if it didn't work) and resulting code for the above example confirms that. An alternative would consist of replacing the memory operand by a register operand containing the pointer, and use the addressing mode explicitly in the asm template. But that would be less optimal than an offsettable memory reference. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Remove empty fixup functionRussell King2006-12-13
| | | | | | | Empty fixup functions are just a waste of code, and are not necessary. Remote them. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4014/1: include drivers/hid/KconfigSascha Hauer2006-12-13
| | | | | | | | HID drivers are in their own directory now, so we have to include the Kconfig file for arm. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4013/1: clocksource driver for netxSascha Hauer2006-12-13
| | | | | | | | Add a clocksource driver for netx systems Signed-off-by: Luotao Fu <lfu@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4012/1: Clocksource for pxaSascha Hauer2006-12-13
| | | | | | | | | Add a clocksource driver for pxa2xx systems Signed-off-by: Luotao Fu <lfu@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Clean up ioremap codeRussell King2006-12-13
| | | | | | | Since we're keeping the ioremap code, we might as well keep it as close to the standard kernel as possible. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Unuse another Linux PTE bitRussell King2006-12-13
| | | | | | | | | | L_PTE_ASID is not really required to be stored in every PTE, since we can identify it via the address passed to set_pte_at(). So, create set_pte_ext() which takes the address of the PTE to set, the Linux PTE value, and the additional CPU PTE bits which aren't encoded in the Linux PTE value. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Clean up KERNEL_RAM_ADDRRussell King2006-12-11
| | | | | | | | | Clean up the KERNEL_RAM_ADDR stuff in arch/arm/kernel/head.S to make it clearer what's referring to what. In doing so, remove the usage of __virt_to_phys(), which is not guaranteed to be something that the assembler can parse. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Add sys_*at syscallsRussell King2006-12-09
| | | | | | Later glibc requires the *at syscalls. Add them. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4004/1: S3C24XX: UDC remove implict addition of VA to regsBen Dooks2006-12-08
| | | | | | | | | Remove the implicit addition of a virtual address to the UDC registers. This should have been done by ioremap() in the driver, not by a static map. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Formalise the ARMv6 processor name stringRussell King2006-12-08
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Handle HWCAP_VFP in VFP support codeRussell King2006-12-08
| | | | | | | | | | | | Don't set HWCAP_VFP in the processor support file; not only does it depend on the processor features, but it also depends on the support code being present. Therefore, only set it if the support code detects that we have a VFP coprocessor attached. Also, move the VFP handling of the coprocessor access register into the VFP support code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'for-linus' of ↵Linus Torvalds2006-12-07
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (55 commits) ieee1394: sbp2: code formatting around work_struct stuff ieee1394: nodemgr: remove a kcalloc ieee1394: conditionally export ieee1394_bus_type ieee1394: Consolidate driver registering ieee1394: sbp2: convert from PCI DMA to generic DMA ieee1394: nodemgr: spaces to tabs ieee1394: nodemgr: fix deadlock in shutdown ieee1394: nodemgr: remove duplicate assignment sbp2: make 1bit bitfield unsigned ieee1394: schedule *_oui sysfs attributes for removal ieee1394: schedule unused symbol exports for removal ieee1394: dv1394: schedule for feature removal ieee1394: raw1394: defer feature removal of old isoch interface ieee1394: ohci1394: call PMac code in shutdown only for proper machines ieee1394: ohci1394: reformat PPC_PMAC platform code ieee1394: ohci1394: add PPC_PMAC platform code to driver probe ieee1394: sbp2: wrap two functions into one ieee1394: sbp2: update comment on things to do ieee1394: sbp2: use list_move_tail() ieee1394: sbp2: more concise names for types and variables ...
| * ieee1394: sbp2: code formatting around work_struct stuffStefan Richter2006-12-07
| | | | | | | | | | | | Merge is finished, can bring the code in readable style again. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: nodemgr: remove a kcallocStefan Richter2006-12-07
| | | | | | | | | | | | Was I sleepwalking when I wrote this? Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: conditionally export ieee1394_bus_typeStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | Follow-up to patch "Consolidate driver registering": Since I plan the lifetime of Linux 2.6.20 to be the deprecation phase of CONFIG_IEEE1394_EXPORT_FULL_API, it seems fair to keep all previously exported symbols available with this option until this phase is over. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: Consolidate driver registeringBen Collins2006-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates some bookkeeping for driver registering. It closely models what pci_register_driver() does. The main addition is that the owner of the driver is set, so we get a proper symlink for /sys/bus/ieee1394/driver/*/module. Also moves setting of name and bus type into nodemgr. Because of this, we can remove the EXPORT_SYMBOL for ieee1394_bus_type, since it's now only used in ieee1394.ko. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: convert from PCI DMA to generic DMAStefan Richter2006-12-07
| | | | | | | | | | | | API conversion without change in functionality Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: nodemgr: spaces to tabsStefan Richter2006-12-07
| | | | | | | | | | | | whitespace pedantry Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: nodemgr: fix deadlock in shutdownStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If "modprobe ohci1394" was quickly followed by "modprobe -r ohci1394", say with 1 second pause in between, the modprobe -r got stuck in uninterruptible sleep in kthread_stop. At the same time the knodemgrd slept uninterruptibly in bus_rescan_devices_helper. That's because driver_detach took the semaphore of the PCI device and bus_rescan_devices_helper wanted to take the semaphore of the FireWire host device's parent, which is the same semaphore. This was a regression since Linux 2.6.16, commit bf74ad5bc41727d5f2f1c6bedb2c1fac394de731, "Hold the device's parent's lock during probe and remove". The fix (or workaround) adds a dummy driver to the hpsb_host device. Now bus_rescan_devices_helper won't scan the host device anymore. This doesn't hurt since we have no drivers which will bind to these devices and it is unlikely that there will ever be such a driver. The dummy driver is befittingly presented as a representation of ieee1394 itself. Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=6706 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: nodemgr: remove duplicate assignmentStefan Richter2006-12-07
| | | | | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * sbp2: make 1bit bitfield unsignedLuca Tettamanti2006-12-07
| | | | | | | | | | | | | | A signed single-bit bitfield doesn't make much sense. Make it unsigned. Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: schedule *_oui sysfs attributes for removalStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | | | | | There is no manpower available to reform oui.db into a library for use in more kernel subsystems. The low ratio of usefulness to size and the occasional need to update oui.db from IEEE's official list suggest to drop oui.db. I plan to make a userspace script available which translates the remaining numeric sysfs attributes to names of organizations. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: schedule unused symbol exports for removalStefan Richter2006-12-07
| | | | | | | | | | | | | | This also means that former parts of ieee1394's API will be subject to change or removal. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: dv1394: schedule for feature removalStefan Richter2006-12-07
| | | | | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: raw1394: defer feature removal of old isoch interfaceStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | Known to be affected: - libdc1394: prefers video1394 for now, old-style raw1394 support might be dropped eventually - OpenH323 PWLib, AVC video input module: uses libraw1394's old API Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: ohci1394: call PMac code in shutdown only for proper machinesStefan Richter2006-12-07
| | | | | | | | | | | | There has been an if(...) missing, for ages. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: ohci1394: reformat PPC_PMAC platform codeStefan Richter2006-12-07
| | | | | | | | | | | | Adjust whitespace and line lengths Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: ohci1394: add PPC_PMAC platform code to driver probeStefan Richter2006-12-07
| | | | | | | | | | | | | | | | Fixes http://bugzilla.kernel.org/show_bug.cgi?id=7431 iBook G3 threw a machine check exception and put the display backlight to full brightness after ohci1394 was unloaded and reloaded. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: wrap two functions into oneStefan Richter2006-12-07
| | | | | | | | | | | | Move the body of a function into its only caller. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: update comment on things to doStefan Richter2006-12-07
| | | | | | | | | | | | Some people actually look at those comments. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: use list_move_tail()Stefan Richter2006-12-07
| | | | | | | | | | | | It's OK to reorder list_del() and sbp2util_free_command_dma() here. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: more concise names for types and variablesStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | "struct scsi_id_instance_data" represents a logical unit. Rename it to "struct sbp2_lu", and "scsi_id" to "lu". Rename some other variables too. Wrap almost all lines after at most 80 columns. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: remove unused struct membersStefan Richter2006-12-07
| | | | | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: proper unit in module parameter descriptionStefan Richter2006-12-07
| | | | | | | | | | | | It's 2^20 bit/s, not 0.001 bit. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: clean up sbp2_ namespaceStefan Richter2006-12-07
| | | | | | | | | | | | | | Prepend sbp2*_ to anything globally defined in sbp2.c except for some macros. Strip sbp2_ from names of struct members. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: some conditions in queue_command are unlikelyStefan Richter2006-12-07
| | | | | | | | Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: remove superfluous commentsStefan Richter2006-12-07
| | | | | | | | | | | | And update and reformat remaining comments. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: delayed_work -> work_structStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | This work is not delayed. Also bring the code format in a state which reduces my work to merge pending sbp2 patchs. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: coding style of some macrosStefan Richter2006-12-07
| | | | | | | | | | | | Adjust parentheses, indentation, line lengths. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: remove debug macrosStefan Richter2006-12-07
| | | | | | | | | | | | No need to keep them in released sources. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: consolidate log levelsStefan Richter2006-12-07
| | | | | | | | | | | | | | | | Replace some calls to SBP2_ERR and SBP2_WARN by SBP2_INFO. Remove logging macros SBP2_NOTICE and SBP2_WARN. Remove direct usage of HPSB_ logging macros. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: remove duplicate codeStefan Richter2006-12-07
| | | | | | | | | | | | | | | | The same case is handled further below in sbp2scsi_complete_command. Note, the second version behaves slightly different but looks preferable. It's an extremely unlikely case by the way. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: remove dead codeStefan Richter2006-12-07
| | | | | | | | | | | | This has been within #if 0 for a long time and is wrong anyway. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: clean up function declarationsStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | Remove unnecessary function prototypes. Remove variable names from function prototypes. Move declarations from sbp2.h to sbp2.c. Move definitions of driver templates together near the top of sbp2.c. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: remove irritating log messageStefan Richter2006-12-07
| | | | | | | | | | | | | | | | | | | | | | The queue depth can be read from /sys/bus/scsi/devices/*/queue_depth, so don't log it. And the hint about speed improvements is misleading, at least under current kernels. If serialization is switched off, read performance is typically increased by less than 10%. (I did not test write performance recently.) On the other hand, serialize_io=0 is not yet safe due to some implementation issues that are not trivial to fix. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ohci1394: shortcut irq printingAlexey Dobriyan2006-12-07
| | | | | | | | | | | | | | To print irq number no need to transform to string using %d, then print using %s. Just use %d. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
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