On Fri, Feb 21, 2014 at 3:53 PM, <[email protected]> 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, <[email protected]> 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 [email protected]. >>> >>> 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. 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