Hi, This series adds support for defining per-channel properies (like n-factor and label) to the TMP421 driver. It starts by adding the missing DT binding for tmp421, in the form that was there before any of my changes. Then I do the changes to the driver and finally adjust the bindings to my changes. The precedence for this case is: [PATCH v9 2/2] hwmon: (ina3221) Read channel input source info from DT Which can be found here: https://lkml.org/lkml/2018/10/2/136 My patches does similar thing but to tmp422 - we need a way to define the labels for specific channels as well as to define the n-factor (that is board specific as it depends on the diodes used for remote sensing). A possibility to disable unused channels seems like a good idea too. Here comes V2. Changes compared to v1: - renamed tmp421.yaml to ti,tmp421.yaml - fixed sparse warnings about making function declarations static - changed the policy for broken DT - in case of errors, the probe will return an error instead of continuing - in addition to disabling the channels specified in DT, the probe function will also enable all the others in case they were disabled by some other code earlier NOTE: this may be a backwards incompatible change - if some channels were disabled by some bootloader code previously the channels would stay like that and now they would be enabled during probe, even if nothing is specified in DT. Is this what we want? - added support for HWMON_T_ENABLE - updated documentation - NOTE: I haven't changed anything related to DT as the discussion has no clear conclusion yet. Krzysztof Adamski (10): dt-bindings: hwmon: add missing tmp421 binding hwmon: (tmp421) introduce MAX_CHANNELS define hwmon: (tmp421) introduce a channel struct hwmon: (tmp421) add support for defining labels from DT hwmon: (tmp421) support disabling channels from DT hwmon: (tmp421) support specifying n-factor via DT hwmon: (tmp421) really disable channels hwmon: (tmp421) support HWMON_T_ENABLE hwmon: (tmp421) update documentation dt-bindings: hwmon: allow specifying channels for tmp421 .../devicetree/bindings/hwmon/ti,tmp421.yaml | 109 +++++++++++ Documentation/hwmon/tmp421.rst | 10 + drivers/hwmon/tmp421.c | 172 ++++++++++++++++-- 3 files changed, 280 insertions(+), 11 deletions(-) create mode 100644 Documentation/devicetree/bindings/hwmon/ti,tmp421.yaml -- 2.31.1
