Re: [PATCH v1 8/8] ARM: dts: aspeed: System1: PS, sensor and more

From: Ninad Palsule
Date: Wed Dec 13 2023 - 14:50:43 EST


Hello Krzysztof,

On 12/13/23 13:37, Krzysztof Kozlowski wrote:
On 13/12/2023 20:02, Ninad Palsule wrote:
Hello Krzysztof,

On 12/12/23 14:26, Krzysztof Kozlowski wrote:
On 12/12/2023 17:40, Ninad Palsule wrote:
This drop adds following devices in the device tree.
- EEPROM/VPD
- Power supplies
- Humidity, pressure and temperature sensors.
- Trusted platform module(TPM) chip

Tested:
This board is tested using the simics simulator.

Signed-off-by: Ninad Palsule <ninad@xxxxxxxxxxxxx>
---
Don't mix DTS with drivers. DTS and drivers go via different subsystems
and cannot have dependencies, so why DTS is patch #6, then driver #7 and
now again DTS #7?
There is a dependency on driver code as patch #8 uses the compatibility
string added in driver patch #7.  I have now moved driver patch at the
start. Is that ok? OR you are suggesting something else?
First, there is no dependency. Second, except confusing order anyway DTS
will go via separate trees. Third, again, there is no dependency. If
there is, your patchset is broken and this needs to be fixed. Although I
don't understand how new hardware can depend on driver... it's really odd.

Thanks for the quick response.

This board uses the nuvoton TPM device. The tpm devices uses "nuvoton,npct75x" driver hence we added it in the device tree. If the driver doesn't have this compatibility string then it won't load. So if someone tries to use this board then tpm won't work unless the compatibility string is added in the driver. That is the dependency I am talking about.

Please let me know.

Regards,

Ninad


Best regards,
Krzysztof