Re: [PATCH 05/10] ARM: dts: BCM5301X: Provide defaults ports container node

From: Rafał Miłecki
Date: Wed Nov 11 2020 - 07:28:03 EST


On 11.11.2020 02:48, Florian Fainelli wrote:
On 11/10/2020 2:13 PM, Florian Fainelli wrote:
On 11/10/20 2:12 PM, Vladimir Oltean wrote:
On Mon, Nov 09, 2020 at 07:31:08PM -0800, Florian Fainelli wrote:
Provide an empty 'ports' container node with the correct #address-cells
and #size-cells properties. This silences the following warning:

arch/arm/boot/dts/bcm4708-asus-rt-ac56u.dt.yaml:
ethernet-switch@18007000: 'oneOf' conditional failed, one must be fixed:
'ports' is a required property
'ethernet-ports' is a required property
From schema:
Documentation/devicetree/bindings/net/dsa/b53.yaml

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
arch/arm/boot/dts/bcm5301x.dtsi | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index 807580dd89f5..89993a8a6765 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -489,6 +489,10 @@ srab: ethernet-switch@18007000 {
status = "disabled";
/* ports are defined in board DTS */
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };

This look a bit 'lone wolf' here. Not sure how much time you intend to
spend on this, but FWIW, others prefer to declare all ports in the SoC
DTSI with status = "disabled", and just enable the ones used per-board,
and add labels and PHY handles also per-board. Example: fsl-ls1028a.dtsi
and fsl-ls1028a-rdb.dts.

That's a good suggestion, I could do that.

There is quite a bit of variation between designs and how the ports are
assigned and it would end up being quite verbose, so I will punt that
for now.

I agree with Florian, boards (vendors) use ports really randomly so pretty
much every device needs that defined from the scratch.