- 26 Sep, 2006 40 commits
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Jean Delvare authored
i2c: Constify i2c_algorithm declarations, part 2 Make struct i2c_algorithm declarations const in all i2c bus drivers where it is possible. Signed-off-by:
Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Jean Delvare authored
i2c: Constify i2c_algorithm declarations, part 1 Make struct i2c_algorithm declarations const in all i2c algorithm drivers. Signed-off-by:
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David Brownell authored
i2c: Let drivers constify i2c_algorithm data Let drivers constify I2C algorithm method operations tables, moving them from ".data" to ".rodata". Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Jean Delvare authored
i2c-isa: Restore driver owner Commit 2b48716d back in January 2006 was a bit overzealous. It removed .owner from all i2c drivers, including i2c-isa ones, while they still need it. Signed-off-by:
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Rudolf Marek authored
i2c-viapro: Add support for the VT8237A and VT8251 Documentation update included. Compile tested. Signed-off-by:
Rudolf Marek <r.marek@sh.cvut.cz> Signed-off-by:
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Jean Delvare authored
i2c: Warn on i2c client creation failure Warn when an i2c client creation fails. If we don't, the user will never know something wrong happened, as i2c client creation is typically called through an attach_adapter callback, those return value we currently ignore for technical reasons. Signed-off-by:
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Jean Delvare authored
i2c-core: Drop useless bitmaskings The code generated is exactly the same. Signed-off-by:
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Adrian Bunk authored
i2c-algo-pcf: Discard the mdelay data struct member Just as i2c-algo-bit, i2c-algo-pcf has an unused mdelay struct member, which we can get rid of to spare some code and memory. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Jean Delvare authored
i2c-algo-bit: Cleanups * Uninline long functions (saves around 1 kB or 15%) * Refactor code in sclhi() * Drop redundant udelay on repeated start Signed-off-by:
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David Hubbard authored
i2c-isa: Fail adding driver on attach_adapter error Signed-off-by:
David Hubbard <david.c.hubbard@gmail.com> Signed-off-by:
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Jean Delvare authored
i2c: __must_check fixes (chip drivers) Check for error on sysfs file creation. Delete sysfs files on device removal. The approach taken for the most complex case (pcf8591) is similar to what Mark M. Hoffman proposed for hardware monitoring chip drivers. Signed-off-by:
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Jean Delvare authored
i2c-dev: attach/detach_adapter cleanups * Only print that an adapter was attached when it succeeds. * i2c_dev == NULL on detach simply means that the attach failed before, this isn't an error per se. Signed-off-by:
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Jean Delvare authored
i2c-stub: Chip address as a module parameter Add a mandatory chip_addr parameter to i2c-stub. This parameter defines to which chip address the driver will respond, instead of reponding to all addresses as before. The idea is to prevent the users from loading i2c-stub at random and being then confused by the results of sensors-detect or other user-space tools. Signed-off-by:
Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by:
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Jean Delvare authored
i2c: Plan i2c-isa for removal i2c-isa doesn't make much sense in the device driver model. Drivers relying on it are better implemented as platform drivers. We must wait for recent versions of libsensors (2.10.0 or later) to be widely deployed beforehand, though. This move should also make it easier to convert i2c-core to the device driver model. Signed-off-by:
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Komal Shah authored
i2c: New bus driver for TI OMAP boards This patch adds I2C bus driver for various Texas Instruments (TI) OMAP1/2 (http://www.ti.com/omap) series based boards like OMAP1510/1610/1710/242x. Signed-off-by:
Komal Shah <komal_shah802003@yahoo.com> Signed-off-by:
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Jean Delvare authored
i2c-algo-bit: Discard the mdelay data struct member The i2c_algo_bit_data structure has an mdelay member, which is not used by the algorithm code (the code has always been ifdef'd out.) Let's discard it to save some code and memory. Signed-off-by:
Mauro Carvalho Chehab <mchehab@brturbo.com.br> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Jean Delvare authored
i2c-matroxfb: Struct init conversion Convert the struct i2c_algo_bit_data initialization to proper C99 style. Signed-off-by:
Petr Vandrovec <vandrove@vc.cvut.cz> Signed-off-by:
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Arthur Othieno authored
i2c: Fix copy-n-paste in subsystem Kconfig We have: drivers/i2c/Kconfig:2:# Character device configuration Which is obviously not true.. Signed-off-by:
Arthur Othieno <apgo@patchbomb.org> Signed-off-by:
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Domen Puncer authored
i2c-au1550: Add I2C support for Au1200 Signed-off-by:
Domen Puncer <domen.puncer@ultra.si> Signed-off-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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Domen Puncer authored
i2c-au1550: Add SMBus functionality flag Add SMBus functionality flag, so we can use eeprom and similar drivers. Signed-off-by:
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Domen Puncer authored
i2c-au1550: Fix timeout problem Fix from Jordan Crouse: If the transmit and recieve FIFOS are not empty, forceably flush them rather then waiting for them to drain on their own. This solves at least a problem reported by Clem Taylor: http://www.linux-mips.org/archives/linux-mips/2006-05/msg00240.html (1% of I2C transactions would timeout) Signed-off-by:
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Jean Delvare authored
i2c-sibyte: Kip Walker is gone Kip Walker no longer works at Broadcom, and his e-mail address there bounces back, so let's drop it. Signed-off-by:
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Jean Delvare authored
i2c-algo-sibyte: Merge into i2c-sibyte Merge i2c-algo-sibyte into i2c-sibyte, as this is a complete, hardware-dependent SMBus implementation and not a reusable algorithm. Perform some basic coding style cleanups while we're here (mainly space-based indentation replaced by tabulations.) Signed-off-by:
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Jean Delvare authored
i2c-algo-sibyte: Cleanups * Delete empty algo_control implementation. * Simplify i2c_sibyte_del_bus. * Delete empty module init and cleanup functions. * Drop out-of-date #ifdef MODULE construct. Signed-off-by:
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Jean Delvare authored
i2c: __must_check fixes (i2c-dev) Check for error on sysfs file creation. Check for error on device creation. Delete sysfs file on device destruction. I couldn't test this one beyond compilation, as it applies on top of another patch in Greg's tree [1] which breaks all my systems when I apply it (my udev isn't recent enough.) Anyone with bleeding edge udev is welcome to test and report. [1] http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/i2c/i2c-dev-device.patchSigned-off-by:
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Jean Delvare authored
i2c: __must_check fixes (core drivers) Check for error on sysfs file creation. Check for error on device registration. Check for error on class device registration. Greg, I am not familiar with completion, can you please tell me if I need to take care of it in the error paths (as I did in this patch, see /* Needed? */ comments), or if it isn't needed? These patches were tested, including forced errors, so they should work fine. But of course more testing can't hurt. Signed-off-by:
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Jean Delvare authored
i2c-dev: Drop the client template Drop the i2c-dev client template. This saves about 360 bytes of memory. I got the idea from a similar cleanup Hans-Frieder Vogt made to i2c-nforce2 recently. Signed-off-by:
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Jean Delvare authored
i2c-dev: Use a list for data storage Use a list instead of a static array for storing the i2c-dev data. Given that most systems have less than 10 i2c busses, most of the space was wasted, so this saves around 1 kB of memory (2 kB on 64-bit archs.) The drawback is that lookup was in O(1) and is now in O(N), but given that the values of N are always small, I don't think this is a problem. Signed-off-by:
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Jean Delvare authored
i2c-dev: Cleanups * We no more need to include platform_device.h. * Delete the to_i2c_dev macro, which is no more used (and no more valid either.) * Drop i2c_dev.minor. Now that the minor number always matches the i2c adapter number, this field is redundant with i2c_dev.adap->nr. * Delete i2c_dev_get_by_adapter() which is now redundant with i2c_dev_get_by_minor() for the same reason. * Drop the local variable dev in i2cdev_attach_adapter(), we can easily do without it. Signed-off-by:
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (47 commits) Driver core: Don't call put methods while holding a spinlock Driver core: Remove unneeded routines from driver core Driver core: Fix potential deadlock in driver core PCI: enable driver multi-threaded probe Driver Core: add ability for drivers to do a threaded probe sysfs: add proper sysfs_init() prototype drivers/base: check errors drivers/base: Platform notify needs to occur before drivers attach to the device v4l-dev2: handle __must_check add CONFIG_ENABLE_MUST_CHECK add __must_check to device management code Driver core: fixed add_bind_files() definition Driver core: fix comments in drivers/base/power/resume.c sysfs_remove_bin_file: no return value, dump_stack on error kobject: must_check fixes Driver core: add ability for devices to create and remove bin files Class: add support for class interfaces for devices Driver core: create devices/virtual/ tree Driver core: add device_rename function Driver core: add ability for classes to handle devices properly ...
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Heiko Carstens authored
Convert cmm's usage of kernel_thread to kthread_run. Also create the cmmthread at module load time, so it is possible to check if creation of the thread fails. In addition the cmmthread now gets terminated when the module gets unloaded instead of leaving a stale kernel thread. Also check the return values of other registration functions at module load and handle their return values appropriately. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Include the host architecture's ptrace-abi.h instead of ptrace.h. There was some cpp mangling of names around the ptrace.h include to avoid symbol clashes between UML and the host architecture. Most of these can go away. The exception is struct pt_regs, which is convenient to have in userspace, but must be renamed in order that UML can define its own. ptrace-x86_64.h needed to have some now-obsolete cpp cruft and a declaration removed. Signed-off-by:
Jeff Dike <jdike@addtoit.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Jeff Dike authored
The use of SEGMENT_RPL_MASK in the i386 ptrace.h introduced by x86-allow-a-kernel-to-not-be-in-ring-0.patch broke the UML build, as UML includes the underlying architecture's ptrace.h, but has no easy access to the x86 segment definitions. Rather than kludging around this, as in the past, this patch splits the userspace-usable parts, which are the bits that UML needs, of ptrace.h into ptrace-abi.h, which is included back into ptrace.h. Thus, there is no net effect on i386. As a side-effect, this creates a ptrace header which is close to being usable in /usr/include. x86_64 is also treated in this way for consistency. There was some trailing whitespace there, which is cleaned up. Signed-off-by:
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Alan Cox authored
Ensure current->signal->tty doesn't get freed during log_exec(). Signed-off-by:
Alan Cox <alan@redhat.com> Acked-by:
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Jeff Dike authored
The KSTK_* macros used an inordinate amount of stack. In order to overcome an impedance mismatch between their interface, which just returns a single register value, and the interface of get_thread_regs, which took a full pt_regs, the implementation created an on-stack pt_regs, filled it in, and returned one field. do_task_stat calls KSTK_* twice, resulting in two local pt_regs, blowing out the stack. This patch changes the interface (and name) of get_thread_regs to just return a single register from a jmp_buf. The include of archsetjmp.h" in registers.h to get the definition of jmp_buf exposed a bogus include of <setjmp.h> in start_up.c. <setjmp.h> shouldn't be used anywhere any more since UML uses the klibc setjmp/longjmp. Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
Clean set_ether_mac usage. Maybe could also be removed, but surely it can't be a global function taking a void* argument. Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by:
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Jeff Dike authored
timer_irq_inited was useless, so it is removed. Signed-off-by:
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Jeff Dike authored
set_interval returns an error instead of panicing if setitimer fails. Some of its callers now check the return. enable_timer is largely tt-mode-specific, so it is marked as such, and the only skas-mode caller is made to call set-interval instead. user_time_init was a no-value-added wrapper around set_interval, so it is gone. Since set_interval is now called from kernel code, callers no longer pass ITIMER_* to it. Instead, they pass a flag which is converted into ITIMER_REAL or ITIMER_VIRTUAL. Signed-off-by:
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Jeff Dike authored
Have most signals go through an arch-provided handler which recovers the sigcontext and then calls a generic handler. This replaces the ARCH_GET_SIGCONTEXT macro, which was somewhat fragile. On x86_64, recovering %rdx (which holds the sigcontext pointer) must be the first thing that happens. sig_handler duly invokes that first, but there is no guarantee that I can see that instructions won't be reordered such that %rdx is used before that. Having the arch provide the handler seems much more robust. Some signals in some parts of UML require their own handlers - these places don't call set_handler any more. They call sigaction or signal themselves. Signed-off-by:
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Jeff Dike authored
- Various cleanups in the sigio code. - Removed explicit zero-initializations of a few structures. - Improved some error messages. - An API change - there was an asymmetry between reactivate_fd calling maybe_sigio_broken, which goes through all the machinery of figuring out if a file descriptor supports SIGIO and applying the workaround to it if not, and deactivate_fd, which just turns off the descriptor. This is changed so that only activate_fd calls maybe_sigio_broken, when the descriptor is first seen. reactivate_fd now calls add_sigio_fd, which is symmetric with ignore_sigio_fd. This removes a recursion which makes a critical section look more critical than it really was, obsoleting a big comment to that effect. This requires keeping track of all descriptors which are getting the SIGIO treatment, not just the ones being polled at any given moment, so that reactivate_fd, through add_sigio_fd, doesn't try to tell the SIGIO thread about descriptors it doesn't care about. Signed-off-by:
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