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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