)]}' { "log": [ { "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": "7059d4b08eba2ad046395a04b02e34ca27304d8f", "tree": "47fbdbec332d2fea3b24f984f08237f92cdfcd2d", "parents": [ "da9eac8990dc614ab4756f2a3d84870b675f1f1e" ], "author": { "name": "David Brownell", "email": "david-b@pacbell.net", "time": "Fri Jul 04 09:59:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 04 10:40:06 2008 -0700" }, "message": "gpio: pca953x (i2c) handles max7310 too\n\nThe pca953x driver can handle another 8-bit I/O expander, the max7310.\nThis patch adds that chip to the list of supported IDs in that driver, and\nexpands the Kconfig helptext accordingly.\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": "69292b342193d4068f6435660368ff98713d8164", "tree": "798419bd4299bd28042c3893865f3b33eea7d562", "parents": [ "da7978b0348d497688541e2d2f5739aa2a2c334f" ], "author": { "name": "David Brownell", "email": "david-b@pacbell.net", "time": "Fri May 23 13:04:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat May 24 09:56:11 2008 -0700" }, "message": "gpio: pca953x driver handles pca9554 too\n\nTeach drivers/gpio/pca953x.c about PCA9554, another compatible chip.\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": "f39e578172f30d3bdd4533465c7ec00db738eb9d", "tree": "6a3e4928f88ec2ed8300bebc85a506c6641b6e7a", "parents": [ "868eb7a8539d3e8c494209be2b1f4084a274dfef" ], "author": { "name": "Will Newton", "email": "will.newton@gmail.com", "time": "Thu May 01 04:35:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 01 08:04:01 2008 -0700" }, "message": "gpio: pca953x: add support for pca9555 I2C I/O expander\n\nAdd support for pca9555 I2C I/O expander. As the comment suggests this part\nis software compatible with the pca9539.\n\nSigned-off-by: Will Newton \u003cwill.newton@imgtec.com\u003e\nCc: \"eric miao\" \u003ceric.miao@marvell.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": "3760f736716f74bdc62a4ba5406934338da93eb2", "tree": "e28e22c6655dd62566f1b7a99f9354a31bf9d06e", "parents": [ "d2653e92732bd3911feff6bee5e23dbf959381db" ], "author": { "name": "Jean Delvare", "email": "khali@linux-fr.org", "time": "Tue Apr 29 23:11:40 2008 +0200" }, "committer": { "name": "Jean Delvare", "email": "khali@hyperion.delvare", "time": "Tue Apr 29 23:11:40 2008 +0200" }, "message": "i2c: Convert most new-style drivers to use module aliasing\n\nBased on earlier work by Jon Smirl and Jochen Friedrich.\n\nUpdate most new-style i2c drivers to use standard module aliasing\ninstead of the old driver_name/type driver matching scheme. I\u0027ve\nleft the video drivers apart (except for SoC camera drivers) as\nthey\u0027re a bit more diffcult to deal with, they\u0027ll have their own\npatch later.\n\nSigned-off-by: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Jon Smirl \u003cjonsmirl@gmail.com\u003e\nCc: Jochen Friedrich \u003cjochen@scram.de\u003e\n" }, { "commit": "d2653e92732bd3911feff6bee5e23dbf959381db", "tree": "fd3a413bc150855a09de29b2d253b7dbeb2705ff", "parents": [ "ee56d977423a58b53fd0fc1ef0aca0c9cb564c53" ], "author": { "name": "Jean Delvare", "email": "khali@linux-fr.org", "time": "Tue Apr 29 23:11:39 2008 +0200" }, "committer": { "name": "Jean Delvare", "email": "khali@hyperion.delvare", "time": "Tue Apr 29 23:11:39 2008 +0200" }, "message": "i2c: Add support for device alias names\n\nBased on earlier work by Jon Smirl and Jochen Friedrich.\n\nThis patch allows new-style i2c chip drivers to have alias names using\nthe official kernel aliasing system and MODULE_DEVICE_TABLE(). At this\npoint, the old i2c driver binding scheme (driver_name/type) is still\nsupported.\n\nSigned-off-by: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Jochen Friedrich \u003cjochen@scram.de\u003e\nCc: Jon Smirl \u003cjonsmirl@gmail.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\n" }, { "commit": "d72cbed0c486e3db8b56380635f8e845073ce63a", "tree": "8739c1078f970a2acdb24fd3f2b94c68c89dd3b5", "parents": [ "438d8908b379b6322fc3b28d45c9ebdddf58bc20" ], "author": { "name": "Guennadi Liakhovetski", "email": "g.liakhovetski@pengutronix.de", "time": "Mon Apr 28 02:14:45 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 28 08:58:34 2008 -0700" }, "message": "gpiolib: i2c/spi drivers: handle rmmod better\n\nUse the newly introduced owner field in struct gpio_chip to protect the\ncurrent (small) set of non-SOC GPIO drivers from being unloaded while any of\ntheir GPIOs are in use.\n\nSigned-off-by: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\u003e\n[ add mcp23s08 and pcf857x ]\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": "842078054da2d754c6b998b116d7c468abbfaaca", "tree": "e31e3d8bef79080c339f94a3a0e205774201e203", "parents": [ "7be3dfec4724c51e890455fe48fe188ad7c18b88" ], "author": { "name": "Arnaud Patard", "email": "arnaud.patard@rtp-net.org", "time": "Mon Mar 10 11:43:48 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Mar 10 18:01:19 2008 -0700" }, "message": "gpio/pca953x bugfix: mark as can_sleep\n\nThe pca953x driver is an I2C driver so gpio_chip-\u003ecan_sleep should be set.\nThis lets upper layers know they should use the gpio_*_cansleep() calls to\naccess values, and may not access them from nonsleeping contexts.\n\nSigned-off-by: Arnaud Patard \u003carnaud.patard@rtp-net.org\u003e\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nAcked-by: \"eric miao\" \u003ceric.y.miao@gmail.com\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f5e8ff483266e2913bd676d520f46b5675a18e7a", "tree": "54c0212d51fb53fb1f301530649dfcd5247bd8b3", "parents": [ "f3dc3630f687aa4664b663143f69d99d83195c54" ], "author": { "name": "Guennadi Liakhovetski", "email": "g.liakhovetski@pengutronix.de", "time": "Wed Feb 06 01:39:04 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 06 10:41:15 2008 -0800" }, "message": "gpio: handle pca953{4,5,6,7,8} too\n\nThis third part of an extension to support more pca953x chips updates the\nlogic to handle the smaller register widths used by the 4-bit and 8-bit parts,\nand to use the chip type to determine how many GPIOs it provides.\n\nAs long as we don\u0027t support interrupt and reset capabilities, those size\nissues are the only software-visible differences between these parts.\n\nSigned-off-by: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\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": "f3dc3630f687aa4664b663143f69d99d83195c54", "tree": "928dd4c1b2ddc7970e6bfebe17911271e1417597", "parents": [ "d1c057e31734426ba385e02291d97bdf06ba0c1d" ], "author": { "name": "Guennadi Liakhovetski", "email": "g.liakhovetski@pengutronix.de", "time": "Wed Feb 06 01:39:03 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 06 10:41:15 2008 -0800" }, "message": "gpio: rename pca953x symbols\n\nThis second part of an extension to support more pca953x chips renames the C\nand Kconfig symbols. All affected files were updated by sed, except for a\ncouple of obvious exceptions. It also updates the Kconfig helptext.\n\nSigned-off-by: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\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": "d1c057e31734426ba385e02291d97bdf06ba0c1d", "tree": "46d85c501626fdc8db60f30a7bc6c3c45eef89dd", "parents": [ "ad8dc96e3b2c3e28854e0de4ab49351ed547b30c" ], "author": { "name": "Guennadi Liakhovetski", "email": "g.liakhovetski@pengutronix.de", "time": "Wed Feb 06 01:39:02 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 06 10:41:15 2008 -0800" }, "message": "gpio: rename pca9539 driver\n\nFirst part of an extension to let the pca9539 driver support more chips,\nstarting with pca9534, pca9535, pca9536, pca9537, and pca9538.\n\nThis renames the files and modifies the Makefile.\n\nSigned-off-by: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\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": "9e60fdcf0c2905d7a8fc4cb2b3711ea5c5acaae1", "tree": "c90417ab0e2079d0355ffb553985d9a0f2348bab", "parents": [ "e58b9e2762a6ef99e20dba47aba21b911658541d" ], "author": { "name": "eric miao", "email": "eric.miao@marvell.com", "time": "Mon Feb 04 22:28:26 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:13 2008 -0800" }, "message": "gpiolib: pca9539 i2c gpio expander support\n\nThis adds a new-style I2C driver with basic support for the sixteen bit\nPCA9539 GPIO expanders. These chips have multiple registers, push-pull output\ndrivers, and (not supported in this patch) pin change interrupts.\n\nBoard-specific code must provide \"pca9539_platform_data\" with each chip\u0027s\n\"i2c_board_info\". That provides the GPIO numbers to be used by that chip, and\ncallbacks for board-specific setup/teardown logic.\n\nDerived from drivers/i2c/chips/pca9539.c (which has no current known users).\nThis is faster and simpler; it uses 16-bit register access, and cache the\nOUTPUT and DIRECTION registers for fast access\n\nSigned-off-by: eric miao \u003ceric.miao@marvell.com\u003e\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nAcked-by: Jean Delvare \u003ckhali@linux-fr.org\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" } ] }