Hi Paul,
On 6/18/24 14:45, Paul Menzel wrote:
Dear Guenter,
Am 18.06.24 um 23:08 schrieb Guenter Roeck:
On 6/18/24 13:37, Paul Menzel wrote:
[ ... ]
Unfortunately, it still fails:
$ git log --no-decorate --oneline -4
7ddcff2d44ae3 hwmon: (spd5118) Add support for Renesas/ITD SPD5118 hub controllers
e89136743324f hwmon: (spd5118) Use spd5118 specific read/write operations
0fcc7279f0cc4 hwmon: (spd5118) Use regmap to implement paging
801b6aad6fa7a hwmon: (spd5118) Add configuration option for auto-detection
$ uname -r
6.10.0-rc4.mx64.461-00050-g7ddcff2d44ae
$ sudo bash -c 'echo 56000 > /sys/class/hwmon/hwmon3/temp1_max'
bash: line 1: echo: write error: No such device or address
Now I am really baffled. I don't think we could do anything simpler
than that.
Please try
sudo i2cset -y -f 0 0x50 0x21 0x06
That should update the critical temperature from 85 degrees C
to 86 degrees C. If that doesn't work, we'll be really out of luck
with that controller (or at least I don't have an idea what else to try).
Bad news:
$ sudo LD_LIBRARY_PATH=~/src/i2c-tools/lib tools/i2cset -y -f 0 0x50 0x21 0x06
Error: Write failed
I wonder if there is some write protect active in your system. I don't see anything
in the spd5118 specification, though, or in the i801 datasheet. I really don't know
what else we could try, sorry. Unfortunately I don't have a system with Intel CPU,
much less one with DDR5, so I won't be able to play with this myself and/or
determine if there is something special with your system, or if this is a generic
problem with i801 controllers.
Let's hope that we get some feedback from others.
Thanks,
Guenter
