Jason Kridner, You totally saved me! I had no idea what was going on until I stumbled on your guess. Keep on guessing is all I can say!
Thanks!!!!!!! On Friday, February 21, 2014 at 5:21:36 PM UTC-8, Jason Kridner wrote: > > > > > On Fri, Feb 21, 2014 at 3:53 PM, <cfa...@gmail.com <javascript:>> wrote: > >> Hi Jason, >> >> Yes, I was using Derek Molloy's DTS file as a template. The only >> difference is that I edited it for the following >> >> 0x198 0x37 /* P9_30 102 OUTPUT MODE7 */ >> >> I posted the relevant dmesg output in my first post. I wasn't sure how >> to attach a file to this thread... >> >> Guy: >> I did look at both DTS files and as far as I could tell there is not a >> conflict with pins. I also tried assigning other GPIO pins values, and >> those did not take effect either. >> > > My first guess is it is the name 'helper' that is in conflict with names > in the other part of the device tree. Try renaming 'helper' to > 'my_pin_helper' or something fun like that. Just a shot in the dark, but > I've run into a similar sort of problem before. > > >> >> On Friday, February 21, 2014 2:17:36 PM UTC-6, Jason Kridner wrote: >>> >>> >>> >>> >>> On Fri, Feb 21, 2014 at 2:47 PM, <cfa...@gmail.com> wrote: >>> >>>> Hello, >>>> >>>> I am trying to use both the "cape-bone-iio" device tree overlay for >>>> analog input, and a simple pin-muxing overlay (see attached DTS file) >>>> >>> >>> I don't see an attachment. Googling for the name I found >>> https://github.com/derekmolloy/boneDeviceTree/ >>> blob/master/overlay/DM-GPIO-Test.dts. Is this the same file or did you >>> edit it? >>> >>> >>>> to change the direction of various gpio pins. Although they both work >>>> on their own, it seems that there is a problem when loaded together. The >>>> first overlay always works, and the second *seems* to load just fine, but >>>> does not take effect.. >>>> >>>> *Example 1 (first load cape-bone-iio, then DM-GPIO-Test)* >>>> >>>> root@beaglebone:~# echo cape-bone-iio > $SLOTS >>>> [ 70.330541] bone-capemgr bone_capemgr.8: part_number >>>> 'cape-bone-iio', version 'N/A' >>>> [ 70.341287] bone-capemgr bone_capemgr.8: slot #7: generic override >>>> [ 70.347943] bone-capemgr bone_capemgr.8: bone: Using override eeprom >>>> data at slot 7 >>>> [ 70.355978] bone-capemgr bone_capemgr.8: slot #7: 'Override Board >>>> Name,00A0,Override Manuf,cape-bone-iio' >>>> [ 70.368667] bone-capemgr bone_capemgr.8: slot #7: Requesting part >>>> number/version based 'cape-bone-iio-00A0.dtbo >>>> [ 70.380219] bone-capemgr bone_capemgr.8: slot #7: Requesting >>>> firmware 'cape-bone-iio-00A0.dtbo' for board-name 'Override Board Name', >>>> version '00A0' >>>> [ 70.395034] bone-capemgr bone_capemgr.8: slot #7: dtbo >>>> 'cape-bone-iio-00A0.dtbo' loaded; converting to live tree >>>> [ 70.407309] bone-capemgr bone_capemgr.8: slot #7: #1 overlays >>>> [ 70.421631] bone-iio-helper helper.14: ready >>>> [ 70.433579] bone-capemgr bone_capemgr.8: slot #7: Applied #1 >>>> overlays. >>>> >>>> root@beaglebone:~# ls /sys/devices/ocp.2/helper.14/ >>>> AIN0 AIN1 AIN2 AIN3 AIN4 AIN5 AIN6 AIN7 driver >>>> modalias power subsystem uevent >>>> root@beaglebone:~# ls /sys/bus/iio/devices/iio\:device0 >>>> buffer in_voltage0_raw in_voltage2_raw in_voltage4_raw >>>> in_voltage6_raw name scan_elements trigger >>>> dev in_voltage1_raw in_voltage3_raw in_voltage5_raw >>>> in_voltage7_raw power subsystem uevent >>>> >>>> >>>> root@beaglebone:~# echo DM-GPIO-Test > $SLOTS >>>> [ 286.033107] bone-capemgr bone_capemgr.8: part_number 'DM-GPIO-Test', >>>> version 'N/A' >>>> [ 286.043079] bone-capemgr bone_capemgr.8: slot #8: generic override >>>> [ 286.049605] bone-capemgr bone_capemgr.8: bone: Using override eeprom >>>> data at slot 8 >>>> [ 286.057622] bone-capemgr bone_capemgr.8: slot #8: 'Override Board >>>> Name,00A0,Override Manuf,DM-GPIO-Test' >>>> [ 286.071044] bone-capemgr bone_capemgr.8: slot #8: Requesting part >>>> number/version based 'DM-GPIO-Test-00A0.dtbo >>>> [ 286.082390] bone-capemgr bone_capemgr.8: slot #8: Requesting >>>> firmware 'DM-GPIO-Test-00A0.dtbo' for board-name 'Override Board Name', >>>> version '00A0' >>>> [ 286.103360] bone-capemgr bone_capemgr.8: slot #8: dtbo >>>> 'DM-GPIO-Test-00A0.dtbo' loaded; converting to live tree >>>> [ 286.115233] bone-capemgr bone_capemgr.8: slot #8: #2 overlays >>>> [ 286.122388] bone-capemgr bone_capemgr.8: slot #8: Applied #2 >>>> overlays. >>>> >>>> root@beaglebone:~# cat $PINS | grep 998 >>>> pin 102 (44e10998) 00000027 pinctrl-single *<-- >>>> unchanged* >>>> >>>> 0: 54:PF--- >>>> 1: 55:PF--- >>>> 2: 56:PF--- >>>> 3: 57:PF--- >>>> 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G >>>> 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI >>>> 7: ff:P-O-L Override Board Name,00A0,Override Manuf,cape-bone-iio >>>> 8: ff:P-O-L Override Board Name,00A0,Override Manuf,DM-GPIO-Test >>>> >>>> *Example 2 (first load DM-GPIO-Test, then cape-bone-iio)* >>>> >>>> root@beaglebone:~# cat $PINS | grep 998 >>>> pin 102 (44e10998) 00000027 pinctrl-single *<-- >>>> default value* >>>> >>>> root@beaglebone:~# echo DM-GPIO-Test > $SLOTS >>>> [ 90.459668] bone-capemgr bone_capemgr.8: part_number 'DM-GPIO-Test', >>>> version 'N/A' >>>> [ 90.469663] bone-capemgr bone_capemgr.8: slot #7: generic override >>>> [ 90.476312] bone-capemgr bone_capemgr.8: bone: Using override eeprom >>>> data at slot 7 >>>> [ 90.484332] bone-capemgr bone_capemgr.8: slot #7: 'Override Board >>>> Name,00A0,Override Manuf,DM-GPIO-Test' >>>> [ 90.496939] bone-capemgr bone_capemgr.8: slot #7: Requesting part >>>> number/version based 'DM-GPIO-Test-00A0.dtbo >>>> [ 90.508493] bone-capemgr bone_capemgr.8: slot #7: Requesting >>>> firmware 'DM-GPIO-Test-00A0.dtbo' for board-name 'Override Board Name', >>>> version '00A0' >>>> [ 90.530293] bone-capemgr bone_capemgr.8: slot #7: dtbo >>>> 'DM-GPIO-Test-00A0.dtbo' loaded; converting to live tree >>>> [ 90.542078] bone-capemgr bone_capemgr.8: slot #7: #2 overlays >>>> [ 90.554967] bone-capemgr bone_capemgr.8: slot #7: Applied #2 >>>> overlays. >>>> >>>> root@beaglebone:~# cat $PINS | grep 998 >>>> pin 102 (44e10998) 00000037 pinctrl-single *<-- >>>> expected value from what was in the overlay* >>>> >>>> root@beaglebone:~# echo cape-bone-iio > $SLOTS >>>> [ 224.500468] bone-capemgr bone_capemgr.8: part_number >>>> 'cape-bone-iio', version 'N/A' >>>> [ 224.510629] bone-capemgr bone_capemgr.8: slot #8: generic override >>>> [ 224.517183] bone-capemgr bone_capemgr.8: bone: Using override eeprom >>>> data at slot 8 >>>> [ 224.525207] bone-capemgr bone_capemgr.8: slot #8: 'Override Board >>>> Name,00A0,Override Manuf,cape-bone-iio' >>>> [ 224.538451] bone-capemgr bone_capemgr.8: slot #8: Requesting part >>>> number/version based 'cape-bone-iio-00A0.dtbo >>>> [ 224.550076] bone-capemgr bone_capemgr.8: slot #8: Requesting >>>> firmware 'cape-bone-iio-00A0.dtbo' for board-name 'Override Board Name', >>>> version '00A0' >>>> [ 224.564897] bone-capemgr bone_capemgr.8: slot #8: dtbo >>>> 'cape-bone-iio-00A0.dtbo' loaded; converting to live tree >>>> [ 224.576965] bone-capemgr bone_capemgr.8: slot #8: #1 overlays >>>> [ 224.591865] bone-capemgr bone_capemgr.8: slot #8: Applied #1 >>>> overlays. >>>> >>>> root@beaglebone:~# ls /sys/devices/ocp.2/helper.14/ >>>> driver modalias power state subsystem uevent <-- >>>> missing AIN* files here, but the files in /sys/bus/iio/.. seem to get >>>> populated as expected >>>> root@beaglebone:~# ls /sys/bus/iio/devices/iio\:device0 >>>> buffer in_voltage0_raw in_voltage2_raw in_voltage4_raw >>>> in_voltage6_raw name scan_elements trigger >>>> dev in_voltage1_raw in_voltage3_raw in_voltage5_raw >>>> in_voltage7_raw power subsystem uevent >>>> >>>> 0: 54:PF--- >>>> 1: 55:PF--- >>>> 2: 56:PF--- >>>> 3: 57:PF--- >>>> 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G >>>> 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI >>>> 7: ff:P-O-L Override Board Name,00A0,Override Manuf,DM-GPIO-Test >>>> 8: ff:P-O-L Override Board Name,00A0,Override Manuf,cape-bone-iio >>>> >>>> If anyone can provide some insight on this, it would be greatly >>>> appreciated. I'm not sure if this is an issue with the cape manager, or >>>> maybe the bone-iio-helper or bone-pinmux-helper driver? >>>> >>> >>> Do you have the output from 'dmesg' available? >>> >>> >>>> I have also tried the "BB-SPI0-01" overlay with my others and they seem >>>> to get along just fine. FYI I am running Linux beaglebone 3.8.13 #1 >>>> SMP Wed Sep 4 and Cloud9 GNOME Image 2013.09.04. Thanks so much for >>>> any help!! >>>> >>>> - Chris >>>> >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "BeagleBoard" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to beagleboard...@googlegroups.com. >>>> >>>> For more options, visit https://groups.google.com/groups/opt_out. >>>> >>> >>> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/10fbd626-6a3c-4ac9-989d-76e6ca8f8b69%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
