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Groups > linux.debian.kernel > #52195
| From | Roger Shimizu <rogershimizu@gmail.com> |
|---|---|
| Newsgroups | linux.debian.bugs.dist, linux.debian.kernel |
| Subject | Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL |
| Date | 2016-01-14 16:50 +0100 |
| Message-ID | <qQSjU-Dz-7@gated-at.bofh.it> (permalink) |
| References | <qQtvc-dp-3@gated-at.bofh.it> <qQzhg-48x-1@gated-at.bofh.it> <qQD1w-6Mu-11@gated-at.bofh.it> <qQQUO-8fS-7@gated-at.bofh.it> <qQRe9-8oq-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Cross-posted to 2 groups.
On Thu, Jan 14, 2016 at 11:32 PM, Roger Shimizu <rogershimizu@gmail.com> wrote: > Dear Uwe, > > On Thu, Jan 14, 2016 at 11:08 PM, Uwe Kleine-König > <uwe+debian@kleine-koenig.org> wrote: >>>>> I need to run the following command to enable USB port on Linkstation >>>>> LS-WXL/WSXL (armel/kirkwood with DTS [0] ): >>>>> echo 37 >/sys/class/gpio/export >>>>> echo out > /sys/class/gpio/gpio37/direction >>>>> echo 1 > /sys/class/gpio/gpio37/value >> >> Can you post the contents of /sys/kernel/debug/gpio when the broken >> kernel is running? > > Thanks for the debugging tool! > It seems there's clue ... > > Here's the log for working & non-working kernel: > > # uname -a > Linux LS-WXL 4.2.0-0.bpo.1-kirkwood #1 Debian 4.2.6-3~bpo8+2 > (2015-12-14) armv5tel GNU/Linux > # mount -t debugfs none /sys/kernel/debug > # cat /sys/kernel/debug/gpio > GPIOs 0-31, platform/f1010100.gpio, f1010100.gpio: > gpio-28 (HDD0 Power ) out hi > gpio-29 (HDD1 Power ) out hi > > GPIOs 32-49, platform/f1010140.gpio, f1010140.gpio: > gpio-34 (? ) out hi > gpio-35 (? ) out hi > gpio-37 (? ) out lo > gpio-38 (? ) out hi > gpio-40 (? ) out hi > > # uname -a > Linux LS-WXL 3.16.0-4-kirkwood #1 Debian 3.16.7-ckt7-1 (2015-03-01) > armv5tel GNU/Linux > # mount -t debugfs none /sys/kernel/debug > # cat /sys/kernel/debug/gpio > GPIOs 0-31, platform/f1010100.gpio, f1010100.gpio: > gpio-28 (HDD0 Power ) out hi > gpio-29 (HDD1 Power ) out hi > > GPIOs 32-49, platform/f1010140.gpio, f1010140.gpio: > gpio-34 (lswxl:red:hdderr0 ) out hi > gpio-35 (lswxl:red:hdderr1 ) out hi > gpio-37 (lswxl:red:func ) out lo > gpio-38 (lswxl:amber:info ) out hi > gpio-40 (lswxl:blue:power ) out hi For above gpio-XX and it's string, I know there're gpio pin definition errors for gpio 32-49. Now I understand gpio 32-49 should be defined as gpio1 XX, and XX should be real pinnumber - 32. e.g. GPIO 37 should be defined as "gpio1 5" After I modified DTS as above new gpio[01] pinnumber, the debug info is like: GPIOs 0-31, platform/f1010100.gpio, f1010100.gpio: gpio-28 (HDD0 Power ) out hi gpio-29 (HDD1 Power ) out hi GPIOs 32-49, platform/f1010140.gpio, f1010140.gpio: gpio-37 (USB Power ) out hi gpio-41 (Function Button ) in hi (act lo) - IRQ edge (clear ) gpio-42 (Power-on Switch ) in lo (act hi) - IRQ edge (clear ) gpio-43 (Power-auto Switch ) in hi (act lo) - IRQ edge (clear ) So gpio-37 is HIGH by default now. Although gpio export is still not working on previously reported kernel version, my problem seems get solved. Cheers, Roger
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Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-13 14:20 +0100
Processed: Re: Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL owner@bugs.debian.org (Debian Bug Tracking System) - 2016-01-13 14:30 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Uwe Kleine-König <uwe+debian@kleine-koenig.org> - 2016-01-13 20:30 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-14 00:30 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Ben Hutchings <ben@decadent.org.uk> - 2016-01-14 01:00 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-14 14:50 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Uwe Kleine-König <uwe+debian@kleine-koenig.org> - 2016-01-14 15:20 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-14 15:40 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> - 2016-01-14 16:40 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-14 17:00 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-15 01:10 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-14 16:50 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Uwe Kleine-König <uwe+debian@kleine-koenig.org> - 2016-01-15 09:20 +0100
Bug#810894: src:linux: GPIO probe failure on Linkstation LS-WXL/WSXL Roger Shimizu <rogershimizu@gmail.com> - 2016-01-15 15:40 +0100
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