On Sun, Mar 15, 2026 at 08:44:02AM -0700, Drew Fustini wrote:

On Sun, Mar 15, 2026 at 12:12:13PM +0000, Conor Dooley wrote:

quoted

On Sat, Mar 14, 2026 at 09:56:27AM -0700, Drew Fustini wrote:

quoted

On Tue, Mar 10, 2026 at 12:24:56AM +0800, Icenowy Zheng wrote:

quoted

The G and J coefficients provided by T-Head TH1520 manual (which calls
them A and C coefficients and calls H coefficient in the binding as B)
have 1/100 degree Celsius precision (the values are 42.74 and -0.16
respectively), however the binding currently only allows coefficients as
precise as 100 milli-Celsius (1/10 degree Celsius).

Change the multipleOf value of these two coefficients to 10 (in the unit
of milli-Celsius) to satisfy the need of TH1520.

Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Drew Fustini <fustini@kernel.org>
---
Changes in v3:
- Added Drew's R-b.
- Fixed some typos in the commit message and slightly reworded the
  precision sentence.

 Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
index 56db2292f062d..7d57c2934a8a1 100644
--- a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
+++ b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml

@@ -105,7 +105,7 @@ properties:
       G coefficient for temperature equation.
       Default for series 5 = 60000
       Default for series 6 = 57400
-    multipleOf: 100
+    multipleOf: 10
     minimum: 1000
     $ref: /schemas/types.yaml#/definitions/uint32
 

@@ -131,7 +131,7 @@ properties:
       J coefficient for temperature equation.
       Default for series 5 = -100
       Default for series 6 = 0
-    multipleOf: 100
+    multipleOf: 10
     maximum: 0
     $ref: /schemas/types.yaml#/definitions/int32
 

-- 
2.52.0

I have applied this to thead-dt-for-next.

That's odd, why is a hwmon binding in your branch?

quoted

https://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux.git/commit/?h=thead-dt-for-next&id=eb4fd43ff6793681f0a0a8e8ac861142caba2b19

I don't see an ack on it from the relevant maintainer either?

Sorry, my mistake, I should not have applied the binding. And you are
right to point out that there was no ack from Guenter or Rahul Tanwar.

It was Guenter I was thinking of, but there's not one from myself, Rob
or Krzysztof either.

I will drop both patches from thead-dt-for-next and wait for agreement
on the binding.

Thanks,
Drew