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[0/2] Add SID and THS calibration for Allwinner R40

Message ID 20261003012534.418820-3-otavio@ossystems.com.br (mailing list archive)
Headers
Series Add SID and THS calibration for Allwinner R40 |

Message

Otavio Salvador Oct. 3, 2026, 1:25 a.m. UTC 
The R40 thermal sensor node has no calibration data. The THS driver
then keeps the calibration registers at their reset value (0x800), and
the reported temperatures have a chip-dependent offset.

This series adds the R40 SID (eFuse) controller and connects the THS
node to its factory calibration at eFuse offset 0x40.

Patch 1 adds the R40 compatible to the SID binding, with the A64
compatible as fallback. The SID driver needs no change.

Patch 2 adds the SID node to sun8i-r40.dtsi and the nvmem cell for the
THS calibration.

Checked with dt_binding_check, and with dtbs_check on all R40, V40 and
T3 board DTBs. No warnings. Tested on two Boardcon EMA40i (A40i) boards.

Otavio Salvador (2):
  dt-bindings: nvmem: SID: Add binding for R40 SID controller
  ARM: dts: sun8i-r40: Add SID node and THS calibration

 .../bindings/nvmem/allwinner,sun4i-a10-sid.yaml   |  1 +
 arch/arm/boot/dts/allwinner/sun8i-r40.dtsi        | 15 ++++++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)


base-commit: ff47652a4b66c067c765a7ad464d930b5a9367cc