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SubjectRe: [PATCH V3] dt-bindings: nvmem: convert base example to use "nvmem-layout" node
Hi Rafał,

zajec5@gmail.com wrote on Fri, 10 Mar 2023 08:51:45 +0100:

> From: Rafał Miłecki <rafal@milecki.pl>
>
> With support for "fixed-layout" binding we can use now "nvmem-layout"
> even for fixed NVMEM cells. Use that in the base example as it should be
> preferred over placing cells directly in the device node.
>
> New and other bindings should follow as old binding will get deprecated
> at some point.
>
> Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
> ---
> .../devicetree/bindings/nvmem/nvmem.yaml | 42 +++++++++++--------
> 1 file changed, 24 insertions(+), 18 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/nvmem/nvmem.yaml b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
> index 732162e9d13e..c77be1c20e47 100644
> --- a/Documentation/devicetree/bindings/nvmem/nvmem.yaml
> +++ b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
> @@ -67,24 +67,30 @@ examples:
>
> /* ... */
>
> - /* Data cells */
> - tsens_calibration: calib@404 {
> - reg = <0x404 0x10>;
> - };
> -
> - tsens_calibration_bckp: calib_bckp@504 {
> - reg = <0x504 0x11>;
> - bits = <6 128>;
> - };
> -
> - pvs_version: pvs-version@6 {
> - reg = <0x6 0x2>;
> - bits = <7 2>;
> - };
> -
> - speed_bin: speed-bin@c{
> - reg = <0xc 0x1>;
> - bits = <2 3>;
> + nvmem-layout {

I believe we should not introduce "intermediate state" bindings when
this is not strictly required, in order to avoid confusion with what is
backward and what is transitory. So I would expect this to only apply
after the switch to:

nvmem-layout@xxx {
reg = <xxx>;

I don't care who will take care of it, but I think it would be better
to have everything in one series.

Other than the "order" problematic which I think is important here, I
agree with this series.

> + compatible = "fixed-layout";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + /* Data cells */
> + tsens_calibration: calib@404 {
> + reg = <0x404 0x10>;
> + };
> +
> + tsens_calibration_bckp: calib_bckp@504 {
> + reg = <0x504 0x11>;
> + bits = <6 128>;
> + };
> +
> + pvs_version: pvs-version@6 {
> + reg = <0x6 0x2>;
> + bits = <7 2>;
> + };
> +
> + speed_bin: speed-bin@c{
> + reg = <0xc 0x1>;
> + bits = <2 3>;
> + };
> };
> };
>


Thanks,
Miquèl

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