)]}'
{
  "log": [
    {
      "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": "bfc9dcabd513334c1d888ab66f7b7d84a3159571",
      "tree": "66638fc446addaef69f9d9e0578e41bb3418a5b9",
      "parents": [
        "2770f189b7a5582869c137e5617fb88cc0ad0fd3"
      ],
      "author": {
        "name": "Dominik D. Geyer",
        "email": "dominik.geyer@gmx.de",
        "time": "Sun Dec 06 18:30:44 2009 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Dec 09 18:59:52 2009 -0800"
      },
      "message": "correct gpio.txt typos\n\nCorrected sysfs gpio chip node name and fixed punctuation.\n\nSigned-off-by: Dominik D. Geyer \u003cdominik.geyer@gmx.de\u003e\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "ff77c352ae17768c61cfc36357f0a3904552f11c",
      "tree": "195c102f75445654e87453cbce284b2f658d13a8",
      "parents": [
        "d120c17faeb391f5b4b99af8b1e190619934ecdd"
      ],
      "author": {
        "name": "Daniel Glöckner",
        "email": "dg@emlix.com",
        "time": "Tue Sep 22 16:46:38 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Sep 23 07:39:48 2009 -0700"
      },
      "message": "gpiolib: allow poll() on value\n\nMany gpio chips allow to generate interrupts when the value of a pin\nchanges.  This patch gives usermode application the opportunity to make\nuse of this feature by calling poll(2) on the /sys/class/gpio/gpioN/value\nsysfs file.  The edge to trigger can be set in the edge file in the same\ndirectory.  Possible values are \"none\", \"rising\", \"falling\", and \"both\".\n\nUsing level triggers is not possible with current sysfs since nothing\nchanges the GPIO value (and the IRQ keeps triggering).  Edge triggering\nwill \"just work\".  Note that if there was an event between read() and\npoll(), the poll() returns immediately.\n\nAlso note that this version only supports true GPIO interrupts.  Some\nlater patch might be able to synthesize this behavior by timer-driven\npolling; some systems seem to need that.\n\n[dbrownell@users.sourceforge.net: align ids to 16 bit ids; whitespace]\nSigned-off-by: Daniel Glöckner \u003cdg@emlix.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": "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": "19f594600110377ec4037fdf7fb93a25ec516212",
      "tree": "bf88707b65f0138b754d896300976e474098a50d",
      "parents": [
        "19af5cdb7c79ff5ec96a99893ffb7f894f4a3dc1"
      ],
      "author": {
        "name": "Matt LaPlante",
        "email": "kernel1@cyberdogtech.com",
        "time": "Mon Apr 27 15:06:31 2009 +0200"
      },
      "committer": {
        "name": "Jiri Kosina",
        "email": "jkosina@suse.cz",
        "time": "Fri Jun 12 18:01:47 2009 +0200"
      },
      "message": "trivial: Miscellaneous documentation typo fixes\n\nFix various typos in documentation txts.\n\nSigned-off-by: Matt LaPlante \u003ckernel1@cyberdogtech.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n"
    },
    {
      "commit": "8a0cecffeb52363a57257bbbbd58f4c4537a75bb",
      "tree": "ee7f754d49a2f2ad75b72ec59e90e6fa2c0753eb",
      "parents": [
        "926b663ce8215ba448960e1ff6e58b67a2c3b99b"
      ],
      "author": {
        "name": "David Brownell",
        "email": "dbrownell@users.sourceforge.net",
        "time": "Thu Apr 02 16:57:06 2009 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Thu Apr 02 19:04:51 2009 -0700"
      },
      "message": "gpio: gpio_{request,free}() now required (feature removal)\n\nWe want to phase out the GPIO \"autorequest\" mechanism in gpiolib and\nrequire all callers to use gpio_request().\n\n - Update feature-removal-schedule\n - Update the documentation now\n - Convert the relevant pr_warning() in gpiolib to a WARN()\n   so folk using this mechanism get a noisy stack dump\n\nSome drivers and board init code will probably need to change.\nImplementations not using gpiolib will still be fine; they are already\nrequired to implement gpio_{request,free}() stubs.\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": "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": "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": "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": "7560fa60fcdcdb0da662f6a9fad9064b554ef46c",
      "tree": "2089d826b0b9230752f318b20884dca20b3847d5",
      "parents": [
        "83c7c693ed3e61535ad6a097ad991a88aafc54b8"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Tue Mar 04 14:28:27 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Mar 04 16:35:10 2008 -0800"
      },
      "message": "gpio: \u003clinux/gpio.h\u003e and \"no GPIO support here\" stubs\n\nAdd a \u003clinux/gpio.h\u003e defining fail/warn stubs for GPIO calls on platforms that\ndon\u0027t support the GPIO programming interface.  That includes the arch-specific\nimplementation glue otherwise.\n\nThis facilitates a new model for GPIO usage: drivers that can use GPIOs if\nthey\u0027re available, but don\u0027t require them.  One example of such a driver is\nNAND driver for various FreeScale chips.  On platforms update with GPIO\nsupport, they can be used instead of a worst-case delay to verify that the\nBUSY signal is off.\n\n(Also includes a couple minor unrelated doc updates.)\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": "7c2db759ece63fd166cf0849b7b271589fa1b754",
      "tree": "581486de22550e1a2ccdbce6de24027bef1a39d9",
      "parents": [
        "d2876d08d86f22ce1f276fc29f6baec8b53e32c6"
      ],
      "author": {
        "name": "David Brownell",
        "email": "dbrownell@users.sourceforge.net",
        "time": "Mon Feb 04 22:28:21 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Feb 05 09:44:13 2008 -0800"
      },
      "message": "gpiolib: update Documentation/gpio.txt\n\nUpdate Documentation/gpio.txt, primarily to include the new \"gpiolib\"\ninfrastructure.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Eric Miao \u003ceric.miao@marvell.com\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\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": "be1ff386e768ee4fc19bb7da48cee4fc4cb4e75b",
      "tree": "56b1dc6b7220d8f32688acdb214318c5842b017b",
      "parents": [
        "6570c45995a6339597462434a81f358a38941ac4"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Mon Jul 23 18:43:57 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Jul 24 12:24:59 2007 -0700"
      },
      "message": "minor gpio doc update\n\nFix doc bug noted by Uwe Kleine-König:  gpio_set_direction() is long\ngone, replaced by gpio_direction_input() and gpio_direction_output().\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: \u003cukleinek@informatik.uni-freiburg.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a0a9983509f45b2225ca87fdcf7b40ea916834ed",
      "tree": "a70151c57f184bccd24175fa19a585021e297973",
      "parents": [
        "e53252d97e670a38b1d2e9723b48077bba11ddda"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Thu Jul 19 01:47:52 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Jul 19 10:04:43 2007 -0700"
      },
      "message": "gpio calls don\u0027t need i/o barriers\n\nClarify that drivers using the GPIO operations don\u0027t need to issue io\nbarrier instructions themselves.  Previously this wasn\u0027t clear, and at\nleast one platform assumed otherwise (and would thus break various\notherwise-portable drivers which don\u0027t issue barriers).\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": "83c6590cb83d3106df12fee36ac2a261951b8c88",
      "tree": "8906e0f3366959e2595d26d263ab32922958743b",
      "parents": [
        "621e59a771f310358ade8f14cb745d5d5f1c410e"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Wed May 16 22:11:13 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu May 17 05:23:05 2007 -0700"
      },
      "message": "gpio interface loosens call restrictions\n\nLoosen gpio_{request,free}() and gpio_direction_{in,out}put() call context\nrestrictions slightly, so a common idiom is no longer an error: board init\ncode setting up spinlock-safe GPIOs before tasking is enabled.\n\nThe issue was caught by some paranoid code with might_sleep() checks.  The\nlegacy platform-specific GPIO interfaces stick to spinlock-safe GPIOs, so this\nchange reflects current implementations and won\u0027t break anything.\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": "32993b793fb07784fd1380004f5b34f31f9105d5",
      "tree": "8fc3f407480d8e18c67bf55b559ac74bd635481b",
      "parents": [
        "7faaa5f0bf4db6ac4908038e2139adc46c165ff4"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Thu May 10 22:22:17 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Fri May 11 08:29:32 2007 -0700"
      },
      "message": "Documentation/gpio.txt mentions GENERIC_GPIO\n\nDocumentation/gpio.txt should mention the Kconfig GENERIC_GPIO flag, for\nplatforms to declare when relevant.  This should help minimize goofs like\nomitting it, or not depending on it when needed.\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": "1668be71ccae5a9610fc8a224bd80fbe852f93ae",
      "tree": "4efb5472b8295a9b7572709f8d3903c5a83943da",
      "parents": [
        "fe20e581a72979917e35d5146458ceba79be391f"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Wed Apr 11 23:28:42 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Apr 12 15:31:42 2007 -0700"
      },
      "message": "[PATCH] doc: gpio.txt describes open-drain emulation\n\nUpdate the GPIO docs to describe the idiom whereby open drain signals are\nemulated by toggling the GPIO direction.\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": "28735a7253a6c24364765e80a5428b4a151fccc2",
      "tree": "824c6391341338dac51f92735d37c83de0d1d522",
      "parents": [
        "a836f5856ae46ccb2464ea76031ea05ae967b832"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Fri Mar 16 13:38:14 2007 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Fri Mar 16 19:25:04 2007 -0700"
      },
      "message": "[PATCH] gpio_direction_output() needs an initial value\n\nIt\u0027s been pointed out that output GPIOs should have an initial value, to\navoid signal glitching ...  among other things, it can be some time before\na driver is ready.  This patch corrects that oversight, fixing\n\n - documentation\n - platforms supporting the GPIO interface\n - users of that call (just one for now, others are pending)\n\nThere\u0027s only one user of this call for now since most platforms are still\nusing non-generic GPIO setup code, which in most cases already couples the\ninitial value with its \"set output mode\" request.\n\nNote that most platforms are clear about the hardware letting the output\nvalue be set before the pin direction is changed, but the s3c241x docs are\nvague on that topic ...  so those chips might not avoid the glitches.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nAcked-by: Andrew Victor \u003candrew@sanpeople.com\u003e\nAcked-by: Milan Svoboda \u003cmsvoboda@ra.rockwell.com\u003e\nAcked-by: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f5de611148c8370cbe50796ca5567ca624b99686",
      "tree": "b3dd73c3ad0414bbc83bca31f800a7af1b79dc3a",
      "parents": [
        "7de970e11fb832a56c897276967fb0e49f59b313"
      ],
      "author": {
        "name": "David Brownell",
        "email": "david-b@pacbell.net",
        "time": "Fri Feb 16 01:27:14 2007 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Fri Feb 16 08:13:55 2007 -0800"
      },
      "message": "[PATCH] GPIO core documentation\n\nSmall updates to the GPIO documentation, addressing feedback and\nfixing a few spelling errors.\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": "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"
    }
  ]
}