On 03/10/2017 07:38 AM, Maxime Ripard wrote: > Hi Marek, > > On Fri, Mar 10, 2017 at 05:52:36AM +0100, Marek Vasut wrote: >> On 03/10/2017 05:06 AM, Moritz Fischer wrote: >>> On Thu, Mar 9, 2017 at 7:17 PM, Marek Vasut <marek.va...@gmail.com> wrote: >>>> On 03/07/2017 09:26 AM, Alban wrote: >>>>> Config data for drivers, like MAC addresses, is often stored in MTD. >>>>> Add a binding that define how such data storage can be represented in >>>>> device tree. >>>>> >>>>> Signed-off-by: Alban <al...@free.fr> >>>>> --- >>>>> Changelog: >>>>> v2: * Added a "Required properties" section with the nvmem-provider >>>>> property >>>>> --- >>>>> .../devicetree/bindings/nvmem/mtd-nvmem.txt | 33 >>>>> ++++++++++++++++++++++ >>>>> 1 file changed, 33 insertions(+) >>>>> create mode 100644 Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt >>>>> >>>>> diff --git a/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt >>>>> b/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt >>>>> new file mode 100644 >>>>> index 0000000..8ed25e6 >>>>> --- /dev/null >>>>> +++ b/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt >>>>> @@ -0,0 +1,33 @@ >>>>> += NVMEM in MTD = >>>>> + >>>>> +Config data for drivers, like MAC addresses, is often stored in MTD. >>>>> +This binding define how such data storage can be represented in device >>>>> tree. >>>>> + >>>>> +An MTD can be defined as an NVMEM provider by adding the `nvmem-provider` >>>>> +property to their node. Data cells can then be defined as child nodes >>>>> +of the partition as defined in nvmem.txt. >>>> >>>> Why don't we just read the data from MTD and be done with it ? What's >>>> the benefit of complicating things by using nvmem ? >>> >>> Well because usually stuff like MAC addresses etc are stored in eeproms. >> >> But eeproms are already supported, see drivers/misc/ . > > This the old, free for all, way to support eeproms. We have a proper > framework for them now, and it's called nvmem.
Ha, so that's why this patchset, I see. Thanks for clarifying. -- Best regards, Marek Vasut
