- 23 4月, 2008 1 次提交
-
-
由 Kay Sievers 提交于
Since 43cc71ee, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable I2C platform drivers, to allow module auto loading. [ db: add some more drivers ] Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NJean Delvare <khali@linux-fr.org>
-
- 24 3月, 2008 1 次提交
-
-
由 Tony Lindgren 提交于
If an I2C interrupt happens between disabling interface clock and functional clock, the interrupt handler will produce an external abort on non-linefetch error when trying to access driver registers while interface clock is disabled. This patch fixes the problem by saving and disabling i2c-omap interrupt before turning off the clocks. Also disable functional clock before the interface clock as suggested by Paul Walmsley. Patch also renames enable/disable_clocks functions to unidle/idle functions. Note that the driver is currently not taking advantage of the idle interrupts. To use the idle interrupts, driver would have to enable interface clock based on the idle interrupt and dev->idle flag. This patch has been tested in linux-omap tree with various omaps. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
-
- 28 1月, 2008 1 次提交
-
-
由 Jean Delvare 提交于
I2C adapter drivers are supposed to handle retries on nack by themselves if they do, so there's no point in setting .retries if they don't. As this retry mechanism is going away (at least in its current form), clean this up now so that we don't get build failures later. Signed-off-by: NJean Delvare <khali@linux-fr.org>
-
- 15 1月, 2008 1 次提交
-
-
由 Tony Lindgren 提交于
This patch fixes bug #9581 reported by Marcio Buss. If kzalloc fails, omap_i2c_write_reg() tries to reset an unallocated I2C controller. Cc: Marcio Buss <marciobuss@gmail.com> Signed-off-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
-
- 12 12月, 2007 1 次提交
-
-
由 Joe Perches 提交于
Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
-
- 20 10月, 2007 1 次提交
-
-
由 Jan Engelhardt 提交于
* Convert files to UTF-8. * Also correct some people's names (one example is Eißfeldt, which was found in a source file. Given that the author used an ß at all in a source file indicates that the real name has in fact a 'ß' and not an 'ss', which is commonly used as a substitute for 'ß' when limited to 7bit.) * Correct town names (Goettingen -> Göttingen) * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313) Signed-off-by: NJan Engelhardt <jengelh@gmx.de> Signed-off-by: NAdrian Bunk <bunk@kernel.org>
-
- 02 5月, 2007 1 次提交
-
-
由 David Brownell 提交于
Update the OMAP I2C driver to use i2c_add_numbered_adapter(), so that later patches can convert boards to using new-style drivers. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NJean Delvare <khali@linux-fr.org>
-
- 11 12月, 2006 1 次提交
-
-
由 Jean Delvare 提交于
Signed-off-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NTony Lindgren <tony@atomide.com>
-
- 05 10月, 2006 1 次提交
-
-
由 David Howells 提交于
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: NDavid Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
-
- 27 9月, 2006 2 次提交
-
-
由 Jean Delvare 提交于
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: NJean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Komal Shah 提交于
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: NKomal Shah <komal_shah802003@yahoo.com> Signed-off-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-