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<kenny>
I just updated my cubieboard2 (A20) and noticed a kworker/0:3-events using a solid 10% cpu. From `perf` it seems to be sun4i-gpadc-iio related. An `rmmod` of that fixes it (I also `rmmod sun4i_drm_hdmi`). Is there some setting I might have wrong?
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<wens>
no, it's how the driver was written
<wens>
it spins for a little bit at each interrupt
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<kenny>
wens: Thanks. Any way to calm it down a bit?
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<aalm>
wow indeed :S
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<corecode>
hi
<juri_>
no.
<corecode>
i'm wondering how FEL mode is entered on the F1C100s/F1C600
<KotCzarny>
did you try sdcard?
<corecode>
unfortunately very underdocumented chip
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<corecode>
KotCzarny: me? no, i'm still doing schematic design
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* checkpoint
has got an A20 board, wonders if A13 system wll boot on A20 unchanged
<KotCzarny>
nope
<KotCzarny>
wrong dt
<checkpoint>
ok, will compile 3.4 for A20 then
<KotCzarny>
well, if you have mainline, just swap dtb
<checkpoint>
I'm bound to use legacy because of hardware h.264 encoding (CedarX)
<KotCzarny>
i think h264 encoding is in the works in mainline
<KotCzarny>
check out the cedrus status
<checkpoint>
couple of months ago it was not listed as supported
<checkpoint>
hmm
<checkpoint>
it says "baseline profile only"
<checkpoint>
have to try and see how it works
<checkpoint>
it seems script.bin is the only thing that needs to be changed to boot on A20, cannot find significant difference in sun5i and sun7i defconfigs
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<aalm>
kenny, if you look at /proc/interrupts, do these 3 standout there? $ cat /proc/irq/{45,47,136}/spurious
<aalm>
[ 13.225289] sunxi_cedrus: module is from the staging directory, the quality is unknown, you have been warned
<aalm>
[ 13.257764] cedrus 1c0e000.video-codec: Device registered as /dev/video0
<aalm>
but i've never used it
<aalm>
Linux xxxx 5.5.3-1-ARCH #1 SMP PREEMPT Wed Feb 12 01:33:58 UTC 2020 armv7l GNU/Linux