Hello I am trying to enable and use eqep0 on my BBB (kernel 4.4.30-ti-r64) and am encountering a pin conflict (pin 107) between the eqep driver and mcasp driver
>From dmesg output: [ 41.150493] eqep 48300180.eqep: ver. 1.0 [ 41.150628] pinctrl-single 44e10800.pinmux: pin 44e109ac.0 already requested by 48038000.mcasp; cannot claim for 48300180.eqep [ 41.162226] pinctrl-single 44e10800.pinmux: pin-107 (48300180.eqep) status -22 [ 41.169520] pinctrl-single 44e10800.pinmux: could not request pin 107 (44e109ac.0) from group pinctrl_eqep0_pins on device pinctrl-single [ 41.182036] eqep 48300180.eqep: Error applying setting, reverse things back In /boot/uEnv.txt I enable bone_eqep0 and disable HDMI with/without audio: ##Example v4.1.x cape_disable=bone_capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN cape_enable=bone_capemgr.enable_partno=BB-UART1,bone_eqep0 In /opt/bb.org-overlays/src/arm/bone_eqep0-00A0 shows the following pins being used which none of them map to pin 107 on my BBB: pinctrl-single,pins = < BONE_P9_42B (PIN_INPUT | MUX_MODE1) // GPIO3_18 = EQEP0A_in BONE_P9_27 (PIN_INPUT | MUX_MODE1) // GPIO3_19 = EQEP0B_in BONE_P9_41B (PIN_INPUT | MUX_MODE1) // GPIO3_20 = EQEP0_index BONE_P9_25 (PIN_INPUT | MUX_MODE1) // GPIO3_21 = EQEP0_strobe I have found a thread here: https://groups.google.com/forum/#!category-topic/beagleboard/audio/YNhtwbe_b4k that shows how to disable mcasp0 but I am concerned that something is not configured right as my understanding was that eqep0 should not conflict with other hardware and especially a pin that should not overlap. Am I missing something obvious. I thought I could just enable this driver out of the box. Kevin -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/3060caa0-9df0-4daa-a7e9-c8ce53b0fc81%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
