just got a new batch of Colibri iMX6 DL version 1.1Y.
when I load my OS onto these, I get the following boot message:
The first message I have seen before (but wondering if I should fix that as well)
But the second message is new to me. is this because i have version 1.1Y? i.e. without the A/D converter? Should I just disable it in the device-tree if I want to avoid seeing the error?
Starting kernel …
[ 0.054177] debugfs: Directory ‘dummy-iomuxc-gpr@20e0000’ with parent ‘regmap’ already present!
[ 0.089767] stmpe-i2c 0-0041: failed to read regs 0x0: -6
Starting version 244.5+
static int __stmpe_reg_read(struct stmpe *stmpe, u8 reg)
{
int ret;
ret = stmpe->ci->read_byte(stmpe, reg);
if (ret < 0) dev_err(stmpe->dev, “failed to read reg %#x: %d\n”, reg, ret);
dev_vdbg(stmpe->dev, “rd: reg %x => data %x\n”, reg, ret);
return ret;
}
That stmpe->ci is a stmpe_client_info - i2c or spi specific routines/info - structure whose read_byte function pointer is filled by the specific driver.
If you check the code of the specific driver loaded by your module you may find what the -6 error means.
I would check the i2c setup because something looks wrong.