{"action":"created","issue":{"url":"https://api.github.com/repos/raspberrypi/linux/issues/770","labels_url":"https://api.github.com/repos/raspberrypi/linux/issues/770/labels{/name}","comments_url":"https://api.github.com/repos/raspberrypi/linux/issues/770/comments","events_url":"https://api.github.com/repos/raspberrypi/linux/issues/770/events","html_url":"https://github.com/raspberrypi/linux/issues/770","id":55630105,"number":770,"title":"pps gpio stopped working on latest update","user":{"login":"jacs90","id":10726862,"avatar_url":"https://avatars.githubusercontent.com/u/10726862?v=3","gravatar_id":"","url":"https://api.github.com/users/jacs90","html_url":"https://github.com/jacs90","followers_url":"https://api.github.com/users/jacs90/followers","following_url":"https://api.github.com/users/jacs90/following{/other_user}","gists_url":"https://api.github.com/users/jacs90/gists{/gist_id}","starred_url":"https://api.github.com/users/jacs90/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jacs90/subscriptions","organizations_url":"https://api.github.com/users/jacs90/orgs","repos_url":"https://api.github.com/users/jacs90/repos","events_url":"https://api.github.com/users/jacs90/events{/privacy}","received_events_url":"https://api.github.com/users/jacs90/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-01-27T15:15:24Z","updated_at":"2015-01-27T16:11:16Z","closed_at":null,"body":"Something has happened in the bcm2708 code somewhere between the following two versions\r\n\r\nWas: Linux raspi-2 3.12.32+ #721 PREEMPT Fri Nov 7 16:50:31 GMT 2014 armv6l\r\nNow: Linux raspi-2 3.18.3+ #742 PREEMPT Mon Jan 26 18:27:18 GMT 2015 armv6l\r\n\r\nthat is stopping pps_gpi working with bcm2708.pps_gpio_pin=18 set in /boot/cmdline.txt\r\n\r\nI should be getting \"bcm2708: GPIO 18 setup as pps-gpio device \"  in the kernel dmesg but its no there anymore. I have check that pps_gpio is getting loaded\r\n\r\nThanks\r\n\r\nChris\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/raspberrypi/linux/issues/comments/71674470","html_url":"https://github.com/raspberrypi/linux/issues/770#issuecomment-71674470","issue_url":"https://api.github.com/repos/raspberrypi/linux/issues/770","id":71674470,"user":{"login":"pelwell","id":8911409,"avatar_url":"https://avatars.githubusercontent.com/u/8911409?v=3","gravatar_id":"","url":"https://api.github.com/users/pelwell","html_url":"https://github.com/pelwell","followers_url":"https://api.github.com/users/pelwell/followers","following_url":"https://api.github.com/users/pelwell/following{/other_user}","gists_url":"https://api.github.com/users/pelwell/gists{/gist_id}","starred_url":"https://api.github.com/users/pelwell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pelwell/subscriptions","organizations_url":"https://api.github.com/users/pelwell/orgs","repos_url":"https://api.github.com/users/pelwell/repos","events_url":"https://api.github.com/users/pelwell/events{/privacy}","received_events_url":"https://api.github.com/users/pelwell/received_events","type":"User","site_admin":false},"created_at":"2015-01-27T16:11:15Z","updated_at":"2015-01-27T16:11:15Z","body":"The README (also available [here](http://www.raspberrypi.org/forums/viewtopic.php?p=675661#p675661)) explains that you can specify an explicit pin using:\r\n```\r\ndtoverlay=pps-gpio,gpiopin=18\r\n```\r\nbut that 18 is the default.\r\n\r\nI don't think that -1 is a pin value, it is a part of the device name, and using a parameterised overlay doesn't get you the \"GPIO.18\" name."}}