Re: [PATCH v4 01/15] dt-bindings: devfreq: rk3399_dmc: Convert to YAML

From: Krzysztof Kozlowski
Date: Wed Mar 09 2022 - 04:34:38 EST


On 08/03/2022 20:08, Brian Norris wrote:
> I want to add, deprecate, and bugfix some properties, as well as add the
> first users. This is easier with a proper schema.
>
> The transformation is mostly straightforward, plus a few notable tweaks:
>
> * Renamed rockchip,dram_speed_bin to rockchip,ddr3_speed_bin. The
> driver code and the example matched, but the description was
> different. I went with the implementation. Note that this property is
> also slated for deprecation/deletion in the subsequent patches.
>
> * Drop upthreshold and downdifferential properties from the example.
> These were undocumented (so, wouldn't pass validation), but were
> representing software properties (governor tweaks). I drop them from
> the driver in subsequent patches.
>
> * Rename clock from pclk_ddr_mon to dmc_clk. The driver, DT example,
> and all downstream users matched -- the binding definition was the
> exception. Anyway, "dmc_clk" is a more appropriately generic name.
>
> * Choose a better filename and location (this is a memory controller).
>
> Signed-off-by: Brian Norris <briannorris@xxxxxxxxxxxx>
> ---
>
> Changes in v4:
> * Update .yaml to use more "default" entries, instead of free-form text
> * s/phandle-array/phandle/
> * Move to .../memory-controllers, update filename
>
> Changes in v3:
> * Add |maxItems| for devfreq-events
> * Improve deprecation notes
>
> Changes in v2:
> * rename to 'memory-controller' in example
> * place 'required' after properties
> * drop superluous free-form references and repetitions of other
> bindings
> * fix for yamllint
>
> .../bindings/devfreq/rk3399_dmc.txt | 212 ------------
> .../rockchip,rk3399-dmc.yaml | 306 ++++++++++++++++++
> 2 files changed, 306 insertions(+), 212 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/devfreq/rk3399_dmc.txt
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml
>

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>

Best regards,
Krzysztof