I am not sure how to attach a file, so here is my DTS file...
/dts-v1/;
/plugin/;
/{
compatible = "ti,beaglebone", "ti,beaglebone-black";
part-number = "DM-GPIO-Test";
version = "00A0";
fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
pinctrl_test: DM_GPIO_Test_Pins {
pinctrl-single,pins = <
0x078 0x07 /* P9_12 60 OUTPUT MODE7 */
0x074 0x07 /* P9_13 31 OUTPUT MODE7 */
/* OUTPUT GPIO(mode7) 0x07 pulldown, 0x17
pullup, 0x?f no pullup/down */
/* INPUT GPIO(mode7) 0x27 pulldown, 0x37
pullup, 0x?f no pullup/down */
>;
};
};
};
fragment@1 {
target = <&ocp>;
__overlay__ {
test_helper: helper {
compatible = "bone-pinmux-helper";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_test>;
status = "okay";
};
};
};
};
On Friday, February 21, 2014 1:47:39 PM UTC-6, [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) 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? 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
>
>
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