Re: [PATCH v3 1/3] nvmem: Update the OF binding to use a subnode for the cells list

From: Alban
Date: Tue Apr 17 2018 - 13:06:04 EST


On Tue, 17 Apr 2018 16:44:01 +0100
Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> wrote:

> Thanks for explaining,
>
> On 17/04/18 15:54, Alban wrote:
> > This will not only allow reading the calibration data from nvmem, but
> > will also create a partition on the MTD device, which is not acceptable.
> > With my proposed binding this would become:
> >
> > flash@0 {
> > #address-cells = <1>;
> > #size-cells = <1>;
> > compatible = "s25sl064a";
> > reg = <0>;
> >
> > nvmem-cells {
> > compatible = "nvmem-cells";
> > #address-cells = <1>;
> > #address-cells = <1>;
> >
> > calibration: calib@404 {
> > reg = <0x404 0x10>;
> > };
> > };
>
> Why can't we make nvmem-cells node a nvmem provider in this case?
> Which should work!

TBH I just copied what have been done to fix the same problem with the
MTD partitions. But yes we could also just extend the current binding
to require a compatible string on each nvmem-cell, which would not
require any code change to support.

Alban

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