Has anyone come right using audio card (rev B) together with 4DCAPE-43T and
BBB Rev C running kernel 3.8.13-bone70?
My setup works flawless using kernel 3.8.13-bone50 but after updating to
use 3.8.13-bone70 there seems to be an issue when LCD is connected.
"aplay -l" shows audio device and running "aplay mytunes.wav" just makes a
single click sound and nothing more (no music).
If I disconnect the LCD then aplay works just fine.
On prior kernel I did modify BB-BONE-AUDI-02 as the dts file specified
exclusive gpio1_18 and gpio1_19 use (and as far I recall, these pins
weren't even used) causing conflict with LCD Cape overlay - until updating
kernal to bone70.
dts snippet:
exclusive-use =
/* the pin header uses */
"P9.31", /* mcasp0: mcasp0_aclkx */
"P9.29", /* mcasp0: mcasp0_fsx */
"P9.28", /* mcasp0: mcasp0_axr2 */
"P9.25", /* mcasp0: mcasp0_ahclkx */
/* the hardware ip uses */
/*"gpio1_18", "gpio1_19",*/
"mcasp0";
root@beaglebone:~# cat /sys/devices/bone_capemgr.9/slots
0: 54:PF---
1: 55:PF---
2: 56:PF---
3: 57:P---L 4D 4.3 LCD CAPE- 4DCAPE-43T ,00A1,4D SYSTEMS ,BB-BONE-
LCD4-01
4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
5: ff:P-O-- Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
8: ff:P-O-L Override Board Name,00A0,Override Manuf,BB-BONE-AUDI-03
--
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