2021-03-04 12:02:35

by J. Neuschäfer

[permalink] [raw]
Subject: [PATCH v2 RESEND 2/2] ARM: dts: Add board-specific compatible string to npcm750-evb devicetree

According to the revised binding, the devicetree needs a board-specific
compatible string.

Signed-off-by: Jonathan Neuschäfer <[email protected]>
---

v2:
- no changes
---
arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
index 9f13d08f5804e..dea3dbc4a6a52 100644
--- a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
+++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
@@ -9,7 +9,7 @@

/ {
model = "Nuvoton npcm750 Development Board (Device Tree)";
- compatible = "nuvoton,npcm750";
+ compatible = "nuvoton,npcm750-evb", "nuvoton,npcm750";

aliases {
ethernet2 = &gmac0;
--
2.29.2


2021-03-04 18:01:16

by J. Neuschäfer

[permalink] [raw]
Subject: Re: [PATCH v2 RESEND 2/2] ARM: dts: Add board-specific compatible string to npcm750-evb devicetree

On Thu, Mar 04, 2021 at 05:21:36PM +0200, Tomer Maimon wrote:
> Hi Jonathan,
>
> Thanks a lot for sending the patch,
>
> I think that when it related to the SoC EVB it can stay with the
> genral compatible name nuvoton,npcm750
>
> you can see it also in,
> https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/aspeed-ast2500-evb.dts#L8

To make the single compatible string match the DT binding, I'll have to
write the binding a little differently. I wrote it like this:

compatible:
oneOf:
- description: NPCM750 based boards
items:
- enum:
- nuvoton,npcm750-evb # NPCM750 evaluation board
- const: nuvoton,npcm750


I guess I could do something like this:

compatible:
oneOf:
- description: NPCM750 development board
const: nuvoton,npcm750


And later add this part, when needed:

- description: NPCM750 based boards
items:
- enum:
- vendor,foo-bar-bmc
- const: nuvoton,npcm750


What do you think?


Thanks,
Jonathan Neuschäfer


> On Wed, 3 Mar 2021 at 17:47, Jonathan Neuschäfer <[email protected]>
> wrote:
[...]
> > / {
> > model = "Nuvoton npcm750 Development Board (Device Tree)";
> > - compatible = "nuvoton,npcm750";
> > + compatible = "nuvoton,npcm750-evb", "nuvoton,npcm750";


Attachments:
(No filename) (1.38 kB)
signature.asc (849.00 B)
Download all attachments

2021-03-11 15:19:56

by J. Neuschäfer

[permalink] [raw]
Subject: Re: [PATCH v2 RESEND 2/2] ARM: dts: Add board-specific compatible string to npcm750-evb devicetree

Hi Tomer,

your in-line reply got lost in the "> " lines, but I found it anyway.

On Thu, Mar 11, 2021 at 04:11:59PM +0200, Tomer Maimon wrote:
> Hi Jonathan,
>
> Thanks a lot for your effort!
>
> On Thu, 4 Mar 2021 at 17:42, Jonathan Neuschäfer <[email protected]>
> wrote:
>
> > On Thu, Mar 04, 2021 at 05:21:36PM +0200, Tomer Maimon wrote:
> > > Hi Jonathan,
> > >
> > > Thanks a lot for sending the patch,
> > >
> > > I think that when it related to the SoC EVB it can stay with the
> > > genral compatible name nuvoton,npcm750
> > >
> > > you can see it also in,
> > > https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/aspeed-ast2500-evb.dts#L8
> >
> > To make the single compatible string match the DT binding, I'll have to
> > write the binding a little differently. I wrote it like this:
> >
> > compatible:
> > oneOf:
> > - description: NPCM750 based boards
> > items:
> > - enum:
> > - nuvoton,npcm750-evb # NPCM750 evaluation board
> > - const: nuvoton,npcm750
> >
>
> I think it should be like the exemple above

If I specify the devicetree binding like above (which I initially did),
it implies that the compatible line in nuvoton-npcm750-evb.dts should be

compatible = "nuvoton,npcm750-evb", "nuvoton,npcm750";

not

compatible = "nuvoton,npcm750";


This is why I suggested rewriting it like below:

> > compatible:
> > oneOf:
> > - description: NPCM750 development board
> > const: nuvoton,npcm750
> >
> > - description: NPCM750 based boards
> > items:
> > - enum:
> > - vendor,foo-bar-bmc
> > - const: nuvoton,npcm750


I will send this new approach as a patch in a few days.


Thanks,
Jonathan Neuschäfer


Attachments:
(No filename) (1.80 kB)
signature.asc (849.00 B)
Download all attachments