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i2c gsl1680 touchscreen and compute module 3

Posted: Wed Apr 17, 2019 2:51 pm
by guillemfrederic
Hello,
I'm trying to connect to a compute module 3 a touchscreen with a gsl1680 i2c driver.
The touchscreen do not work, i only obtain:
[email protected]:~ $ i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
[email protected]:~ $ dmesg | grep silead
[ 4.001188] silead_ts 1-0040: 1-0040 supply vddio not found, using dummy regulator
[ 4.001268] silead_ts 1-0040: Linked as a consumer to regulator.0
[ 4.001285] silead_ts 1-0040: 1-0040 supply avdd not found, using dummy regulator
[ 4.006976] silead_ts 1-0040: Silead chip ID: 0xB4820000
[ 4.153520] silead_ts 1-0040: Direct firmware load for silead/gsl1680.fw failed with error -2
[ 4.153544] silead_ts 1-0040: Firmware request error -2
[ 4.153757] silead_ts: probe of 1-0040 failed with error -2


do you have any idea where the problem is coming from?
Thanks a lot