)]}' { "log": [ { "commit": "c4b5be98fe78508e7199d6919eb712feba9a4f01", "tree": "9e688dd076cea9213f8bcbda3627aa7941a01879", "parents": [ "796a8e423ac8afe9e98ad96e668f50142bdd7825" ], "author": { "name": "Felipe Balbi", "email": "felipe.balbi@nokia.com", "time": "Wed May 26 14:42:23 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:42 2010 -0700" }, "message": "gpiolib: introduce set_debounce method\n\nA few architectures, like OMAP, allow you to set a debouncing time for the\ngpio before generating the IRQ. Teach gpiolib about that.\n\nMark said:\n: This would be generally useful for embedded systems, especially where\n: the interrupt concerned is a wake source. It allows drivers to avoid\n: spurious interrupts from noisy sources so if the hardware supports it\n: the driver can avoid having to explicitly wait for the signal to become\n: stable and software has to cope with fewer events. We\u0027ve lived without\n: it for quite some time, though.\n\nDavid said:\n: I looked at adding debounce support to the generic GPIO calls (and thus\n: gpiolib) some time back, but decided against it. I forget why at this\n: time (check list archives) but it wasn\u0027t because of lack of utility in\n: certain contexts.\n:\n: One thing to watch out for is just how variable the hardware capabilities\n: are. Atmel GPIOs have something like a fixed number of 32K clock cycles\n: for debounce, twl4030 had something odd, OMAPs were more like the Atmel\n: chips but with a different clock. In some cases debouncing had to be\n: ganged, not per-GPIO. And so forth.\n\nSigned-off-by: Felipe Balbi \u003cfelipe.balbi@nokia.com\u003e\nCc: Tony Lindgren \u003ctony@atomide.com\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nReviewed-by: Mark Brown \u003cbroonie@opensource.wolfsonmicro.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7839ec78214ecf477cc9e2862233b8d9fcf4ec58", "tree": "2adf5796b9eb1cbae7196f11c0751add4ede9413", "parents": [ "7cfe1395b28c472e569db6595a27bfefb161a7bc" ], "author": { "name": "Uwe Kleine-König", "email": "u.kleine-koenig@pengutronix.de", "time": "Wed May 26 14:42:18 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:41 2010 -0700" }, "message": "gpiolib: document that names can contain printk format specifiers\n\nSigned-off-by: Uwe Kleine-König \u003cu.kleine-koenig@pengutronix.de\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "62154991a8b2b932112d39bf4aeaab37fa7b9a31", "tree": "3a66dee35354f8ffe071aa059024d9ae41d3cdaa", "parents": [ "a80a0bbee49872c296c9ed9d6af0f510fcd825a7" ], "author": { "name": "Uwe Kleine-König", "email": "u.kleine-koenig@pengutronix.de", "time": "Wed May 26 14:42:17 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:41 2010 -0700" }, "message": "gpiolib: make names array and its values const\n\ngpiolib doesn\u0027t need to modify the names and I assume most initializers\nuse string constants that shouldn\u0027t be modified anyhow.\n\n[akpm@linux-foundation.org: fix drivers/gpio/cs5535-gpio.c]\nSigned-off-by: Uwe Kleine-König \u003cu.kleine-koenig@pengutronix.de\u003e\nCc: Kevin Wells \u003ckevin.wells@nxp.com\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3e45f1d1155894e6f4291f5536b224874d52d8e2", "tree": "d7b44dd5248bdb053c0cd6632e82ce8893833519", "parents": [ "62fecb70cfaa9b4c6aa1981acd53b18f4ad925f0" ], "author": { "name": "Eric Miao", "email": "eric.y.miao@gmail.com", "time": "Fri Mar 05 13:44:35 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 06 11:26:48 2010 -0800" }, "message": "gpio: introduce gpio_request_one() and friends\n\ngpio_request() without initial configuration of the GPIO is normally\nuseless, introduce gpio_request_one() together with GPIOF_ flags for\ninput/output direction and initial output level.\n\ngpio_{request,free}_array() for multiple GPIOs.\n\nSigned-off-by: Eric Miao \u003ceric.y.miao@gmail.com\u003e\nCc: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Ben Nizette \u003cbn@niasdigital.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0769746183caff9d4334be48c7b0e7d2ec8716c4", "tree": "e23768be82bd84cf8331709ecc1fd36c3d468f33", "parents": [ "35570ac6039ef490b9c5abde1fee4803a39bf4e1" ], "author": { "name": "Jani Nikula", "email": "ext-jani.1.nikula@nokia.com", "time": "Tue Dec 15 16:46:20 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 16 07:20:01 2009 -0800" }, "message": "gpiolib: add support for changing value polarity in sysfs\n\nDrivers may use gpiolib sysfs as part of their public user space\ninterface. The GPIO number and polarity might change from board to\nboard. The gpio_export_link() call can be used to hide the GPIO number\nfrom user space. Add support for also hiding the GPIO line polarity\nchanges from user space.\n\nSigned-off-by: Jani Nikula \u003cext-jani.1.nikula@nokia.com\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1f018c8d0d30bd6cc704104cfc50f2e5eee4e2dd", "tree": "84795bbbba73ed57b073958e0000f144a570abc3", "parents": [ "4029a91f0c82ae16e5b10b36da51c470895deedf" ], "author": { "name": "Mike Frysinger", "email": "vapier@gentoo.org", "time": "Wed Dec 09 06:53:39 2009 -0500" }, "committer": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Thu Dec 10 22:18:33 2009 +0100" }, "message": "asm-generic/gpio.h: add some forward decls of the device struct\n\nAfter the recent commit a4177ee7f, attempting to include asm-generic/gpio.h\nin otherwise \"slim\" code results in ugly warnings like so:\n\n CC arch/blackfin/kernel/bfin_gpio.o\nIn file included from arch/blackfin/include/asm/gpio.h:278,\n from arch/blackfin/kernel/bfin_gpio.c:15:\ninclude/asm-generic/gpio.h:193: warning:\n‘struct device’ declared inside parameter list\nits scope is only this definition or declaration, which is probably not what you want\n\nSo add simple C forward decls of the struct device to avoid these.\n\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\n" }, { "commit": "b3db4a8ad19173a8fd0ced13d47c97910f1ab14b", "tree": "28c6cf9c9240b1db27a85dc740407f8a7e124c97", "parents": [ "828c09509b9695271bcbdc53e9fc9a6a737148d2" ], "author": { "name": "Mike Frysinger", "email": "vapier@gentoo.org", "time": "Thu Oct 01 15:43:56 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 01 16:11:11 2009 -0700" }, "message": "asm-generic/gpio.h: pull in linux/kernel.h for might_sleep()\n\nThe asm-generic/gpio.h header uses the might_sleep() macro but doesn\u0027t\ninclude the header for it, so any source code that might include\nlinux/gpio.h before linux/kernel.h can easily lead to a build failure.\n\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a4177ee7f1a83eecb1d75e85d32664b023ef65e9", "tree": "614b12b1f28a1a9090d96bea33639265e3e79839", "parents": [ "d8c1acb1664d17dd995e34507533321e986d9215" ], "author": { "name": "Jani Nikula", "email": "ext-jani.1.nikula@nokia.com", "time": "Tue Sep 22 16:46:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:46 2009 -0700" }, "message": "gpiolib: allow exported GPIO nodes to be named using sysfs links\n\nCommit 926b663ce8215ba448960e1ff6e58b67a2c3b99b (gpiolib: allow GPIOs to\nbe named) already provides naming on the chip level. This patch provides\nmore flexibility by allowing multiple names where ever in sysfs on a per\nGPIO basis.\n\nAdapted from David Brownell\u0027s comments on a similar concept:\nhttp://lkml.org/lkml/2009/4/20/203.\n\n[randy.dunlap@oracle.com: fix build for CONFIG_GENERIC_GPIO\u003dn]\nSigned-off-by: Jani Nikula \u003cext-jani.1.nikula@nokia.com\u003e\nAcked-by: David Brownell \u003cdavid-b@pacbell.net\u003e\nCc: Daniel Silverstone \u003cdsilvers@simtec.co.uk\u003e\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "926b663ce8215ba448960e1ff6e58b67a2c3b99b", "tree": "d60e6add2528b6a61968b0dc2db2f162bb157639", "parents": [ "f30281f4f7c2a0efcfeddad12277dfdada8f08a7" ], "author": { "name": "Daniel Silverstone", "email": "dsilvers@simtec.co.uk", "time": "Thu Apr 02 16:57:05 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:04:51 2009 -0700" }, "message": "gpiolib: allow GPIOs to be named\n\nAllow GPIOs in GPIOLIB chips to be named. This name is then used when the\nGPIO is exported to sysfs, although it could be used elsewhere if deemed\nuseful.\n\nSigned-off-by: Daniel Silverstone \u003cdsilvers@simtec.co.uk\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "35e8bb5175c1a6ff6253f1a2acb30bfe52a2f500", "tree": "88a1e9695824f88efef3340fd53f8dbe576f5852", "parents": [ "93a22f8b95756c53e80308820892119c910d2739" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Wed Oct 15 22:03:16 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 16 11:21:40 2008 -0700" }, "message": "gpiolib: request/free hooks\n\nAdd a new internal mechanism to gpiolib to support low power\noperations by letting gpio_chip instances see when their GPIOs\nare in use. When no GPIOs are active, chips may be able to\nenter lower powered runtime states by disabling clocks and/or\npower domains.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: \"Magnus Damm\" \u003cmagnus.damm@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0f6d504e73b49374c6093efe6aa60ab55058248a", "tree": "414c9e591ba23b2126bc9cad4e0efb1b60693b2d", "parents": [ "2f8d11971b9f54362437ce70f4d1911f0996d542" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Wed Oct 15 22:03:14 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 16 11:21:40 2008 -0700" }, "message": "gpiolib: gpio_to_irq() hooks\n\nAdd a new gpiolib mechanism: gpio_chip instances can provide mappings\nbetween their (input) GPIOs and any associated IRQs. This makes it easier\nfor platforms to support IRQs that are provided by board-specific external\nchips instead of as part of their core (such as SOC-integrated GPIOs).\n\nAlso update the irq_to_gpio() description, saying to avoid it because it\u0027s\nnot always supported.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4fd5463c43d75ec919e27abdcfde1b199c19541e", "tree": "c9cbc30718184ebc52a912786c4f9856f00bddbb", "parents": [ "1716b0fea36c2be628440c1050182a1a1e9caae7" ], "author": { "name": "Dmitry Baryshkov", "email": "dbaryshkov@gmail.com", "time": "Wed Oct 15 22:03:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 16 11:21:40 2008 -0700" }, "message": "gpio: make gpiochip label const\n\nMark gpiochip label as a const char pointer. Fixes things like\n\narch/arm/common/scoop.c: In function `scoop_probe\u0027:\narch/arm/common/scoop.c:250: warning: assignment discards qualifiers from pointer target type\n\nSigned-off-by: Dmitry Baryshkov \u003cdbaryshkov@gmail.com\u003e\nAcked-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "25947d5ac56004378d8c2d31ebf22600d5bc0c02", "tree": "9c31bdb948e5bbb01e481fb1d74b9983aa93c987", "parents": [ "e3b6e806cf7e45ac5e6ac0625cebafa4de3394aa" ], "author": { "name": "Atsushi Nemoto", "email": "anemo@mba.ocn.ne.jp", "time": "Mon Jul 28 15:46:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 28 16:30:21 2008 -0700" }, "message": "gpio: fix build on CONFIG_GPIO_SYSFS\u003dn\n\nIf CONFIG_GENERIC_GPIO\u003dy \u0026\u0026 CONFIG_GPIO_SYSFS\u003dn, gpio_export() in\nasm-generic/gpio.h refers -ENOSYS and causes build error.\n\nSigned-off-by: Atsushi Nemoto \u003canemo@mba.ocn.ne.jp\u003e\nAcked-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6a9436d0c3cbe8941b1acd5b0736d355295cad98", "tree": "d29f52ca2778aa2aa1ee66158b234e4ac462013b", "parents": [ "a048d3aff8b828b6c0fa7ddd90a531248ab4e0f9" ], "author": { "name": "Michael Buesch", "email": "mb@bu3sch.de", "time": "Sat Jul 26 15:22:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 20:16:47 2008 -0700" }, "message": "gpiolib: fix typo in comment\n\nThis fixes an off-by-one error in a comment.\n\nSigned-off-by: Michael Buesch \u003cmb@bu3sch.de\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7444a72effa632fcd8edc566f880d96fe213c73b", "tree": "89d3e70c22751a6b00091df2b4dce7202eb3b1f5", "parents": [ "ff1d5c2f0268f4e32103536e2e65480b5b7b6530" ], "author": { "name": "Michael Buesch", "email": "mb@bu3sch.de", "time": "Fri Jul 25 01:46:11 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "gpiolib: allow user-selection\n\nThis patch adds functionality to the gpio-lib subsystem to make it\npossible to enable the gpio-lib code even if the architecture code didn\u0027t\nrequest to get it built in.\n\nThe archtitecture code does still need to implement the gpiolib accessor\nfunctions in its asm/gpio.h file. This patch adds the implementations for\nx86 and PPC.\n\nWith these changes it is possible to run generic GPIO expansion cards on\nevery architecture that implements the trivial wrapper functions. Support\nfor more architectures can easily be added.\n\nSigned-off-by: Michael Buesch \u003cmb@bu3sch.de\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nCc: Jesper Nilsson \u003cjesper.nilsson@axis.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Samuel Ortiz \u003csameo@openedhand.com\u003e\nCc: Kumar Gala \u003cgalak@gate.crashing.org\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d8f388d8dc8d4f36539dd37c1fff62cc404ea0fc", "tree": "df8603775c889f29f8a03c77b9f7913bfd90d296", "parents": [ "8b6dd986823a8d92ed9f54baa5cef8604d9d9d44" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Fri Jul 25 01:46:07 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "gpio: sysfs interface\n\nThis adds a simple sysfs interface for GPIOs.\n\n /sys/class/gpio\n \t/export ... asks the kernel to export a GPIO to userspace\n \t/unexport ... to return a GPIO to the kernel\n /gpioN ... for each exported GPIO #N\n\t /value ... always readable, writes fail for input GPIOs\n\t /direction ... r/w as: in, out (default low); write high, low\n\t/gpiochipN ... for each gpiochip; #N is its first GPIO\n\t /base ... (r/o) same as N\n\t /label ... (r/o) descriptive, not necessarily unique\n\t /ngpio ... (r/o) number of GPIOs; numbered N .. N+(ngpio - 1)\n\nGPIOs claimed by kernel code may be exported by its owner using a new\ngpio_export() call, which should be most useful for driver debugging.\nSuch exports may optionally be done without a \"direction\" attribute.\n\nUserspace may ask to take over a GPIO by writing to a sysfs control file,\nhelping to cope with incomplete board support or other \"one-off\"\nrequirements that don\u0027t merit full kernel support:\n\n echo 23 \u003e /sys/class/gpio/export\n\t... will gpio_request(23, \"sysfs\") and gpio_export(23);\n\tuse /sys/class/gpio/gpio-23/direction to (re)configure it,\n\twhen that GPIO can be used as both input and output.\n echo 23 \u003e /sys/class/gpio/unexport\n\t... will gpio_free(23), when it was exported as above\n\nThe extra D-space footprint is a few hundred bytes, except for the sysfs\nresources associated with each exported GPIO. The additional I-space\nfootprint is about two thirds of the current size of gpiolib (!). Since\nno /dev node creation is involved, no \"udev\" support is needed.\n\nRelated changes:\n\n * This adds a device pointer to \"struct gpio_chip\". When GPIO\n providers initialize that, sysfs gpio class devices become children of\n that device instead of being \"virtual\" devices.\n\n * The (few) gpio_chip providers which have such a device node have\n been updated.\n\n * Some gpio_chip drivers also needed to update their module \"owner\"\n field ... for which missing kerneldoc was added.\n\n * Some gpio_chips don\u0027t support input GPIOs. Those GPIOs are now\n flagged appropriately when the chip is registered.\n\nBased on previous patches, and discussion both on and off LKML.\n\nA Documentation/ABI/testing/sysfs-gpio update is ready to submit once this\nmerges to mainline.\n\n[akpm@linux-foundation.org: a few maintenance build fixes]\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6ea0205b56546cef782b74d9f4664ec00290a6ae", "tree": "6d95b52af65d6de540e606d95159e539d5cc2852", "parents": [ "ee29420aca6ca6fbb3e72ee8a980b2600911b864" ], "author": { "name": "David Brownell", "email": "david-b@pacbell.net", "time": "Fri May 23 13:04:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat May 24 09:56:13 2008 -0700" }, "message": "gpio: build fixes\n\nThis fixes various gpio-related build errors (mostly potential)\nreported in part by Russell King and Uwe Kleine-König.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Uwe Kleine-König \u003cUwe.Kleine-Koenig@digi.com\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Arnaud Patard \u003carnaud.patard@rtp-net.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "169b6a7a6e91e1ea32136681b475cbaf2074bf35", "tree": "bf29842528e61cb07c581e43acbe3619a25746ab", "parents": [ "8d0aab2f16c4fa170f32e7a74a52cd0122bbafef" ], "author": { "name": "Anton Vorontsov", "email": "avorontsov@ru.mvista.com", "time": "Mon Apr 28 02:14:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 28 08:58:34 2008 -0700" }, "message": "gpiochip_reserve()\n\nAdd a new function gpiochip_reserve() to reserve ranges of gpios that platform\ncode has pre-allocated. That is, this marks gpio numbers which will be\nclaimed by drivers that haven\u0027t yet been loaded, and thus are not available\nfor dynamic gpio number allocation.\n\n[akpm@linux-foundation.org: remove unneeded __must_check]\n[david-b@pacbell.net: don\u0027t export gpiochip_reserve (section fix)]\nSigned-off-by: Anton Vorontsov \u003cavorontsov@ru.mvista.com\u003e\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e6de1808f8ebfeb7e49f3c5a30cb8f2032beb287", "tree": "2230ea8f384449c7785d636ab016af3b2aa20123", "parents": [ "d72cbed0c486e3db8b56380635f8e845073ce63a" ], "author": { "name": "Guennadi Liakhovetski", "email": "g.liakhovetski@pengutronix.de", "time": "Mon Apr 28 02:14:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 28 08:58:34 2008 -0700" }, "message": "gpio: define gpio_is_valid()\n\nIntroduce a gpio_is_valid() predicate; use it in gpiolib.\n\nSigned-off-by: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\u003e\n [ use inline function; follow the gpio_* naming convention;\n work without gpiolib; all programming interfaces need docs ]\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "438d8908b379b6322fc3b28d45c9ebdddf58bc20", "tree": "ce9439dc8c7e5d9e80f514751fb3b4ce4e414233", "parents": [ "73fcdc9e15c27bb92595c611c8938a36645ea20d" ], "author": { "name": "Guennadi Liakhovetski", "email": "g.liakhovetski@pengutronix.de", "time": "Mon Apr 28 02:14:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 28 08:58:34 2008 -0700" }, "message": "gpiolib: better rmmod infrastructure\n\nAs long as one or more GPIOs on a gpio chip are used its driver should not be\nunloaded. The existing mechanism (gpiochip_remove failure) doesn\u0027t address\nthat, since rmmod can no longer be made to fail by having the cleanup code\nreport errors. Module usecounts are the solution.\n\nAssuming standard \"initialize struct to zero\" policies, this change won\u0027t\naffect SOC platform drivers. However, drivers for external chips (on I2C and\nSPI busses) should be updated if they can be built as modules.\n\nSigned-off-by: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\u003e\n[ gpio_ensure_requested() needs to update module usecounts too ]\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d2876d08d86f22ce1f276fc29f6baec8b53e32c6", "tree": "d9d059fad208001edb58d9dff3ed6ad64c8e7407", "parents": [ "a9c5fff542544c8595bb12efeb278a96d99386fc" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Mon Feb 04 22:28:20 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:12 2008 -0800" }, "message": "gpiolib: add gpio provider infrastructure\n\nProvide new implementation infrastructure that platforms may choose to use\nwhen implementing the GPIO programming interface. Platforms can update their\nGPIO support to use this. In many cases the incremental cost to access a\nnon-inlined GPIO should be less than a dozen instructions, with the memory\ncost being about a page (total) of extra data and code. The upside is:\n\n * Providing two features which were \"want to have (but OK to defer)\" when\n GPIO interfaces were first discussed in November 2006:\n\n -\tA \"struct gpio_chip\" to plug in GPIOs that aren\u0027t directly supported\n\tby SOC platforms, but come from FPGAs or other multifunction devices\n\tusing conventional device registers (like UCB-1x00 or SM501 GPIOs,\n\tand southbridges in PCs with more open specs than usual).\n\n -\tFull support for message-based GPIO expanders, where registers are\n\taccessed through sleeping I/O calls. Previous support for these\n\t\"cansleep\" calls was just stubs. (One example: the widely used\n\tpcf8574 I2C chips, with 8 GPIOs each.)\n\n * Including a non-stub implementation of the gpio_{request,free}() calls,\n making those calls much more useful. The diagnostic labels are also\n recorded given DEBUG_FS, so /sys/kernel/debug/gpio can show a snapshot\n of all GPIOs known to this infrastructure.\n\nThe driver programming interfaces introduced in 2.6.21 do not change at all;\nthis infrastructure is entirely below those covers.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Eric Miao \u003ceric.miao@marvell.com\u003e\nCc: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nCc: Philipp Zabel \u003cphilipp.zabel@gmail.com\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Ben Gardner \u003cbgardner@wabtec.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4c20386c8d0719b42503efe65abe47ad3fb3d711", "tree": "9ec169c4c8548a9c2ac5c258c15020c346b969e1", "parents": [ "9794f33ddedd878dd92fcf8b4834391840366919" ], "author": { "name": "David Brownell", "email": "david-b@pacbell.net", "time": "Mon Feb 12 00:53:11 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Feb 12 09:48:34 2007 -0800" }, "message": "[PATCH] GPIO core\n\nThis defines a simple and minimalist programming interface for GPIO APIs:\n\n - Documentation/gpio.txt ... describes things (read it)\n\n - include/asm-arm/gpio.h ... defines the ARM hook, which just punts\n to \u003casm/arch/gpio.h\u003e for any implementation\n\n - include/asm-generic/gpio.h ... implement \"can sleep\" variants as calling\n the normal ones, for systems that don\u0027t handle i2c expanders.\n\nThe immediate need for such a cross-architecture API convention is to support\ndrivers that work the same on AT91 ARM and AVR32 AP7000 chips, which embed many\nof the same controllers but have different CPUs. However, several other users\nhave been reported, including a driver for a hardware watchdog chip and some\nhandhelds.org multi-CPU button drivers.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ] }