linux-kernel - Re: [PATCH] misc: Silence warnings when building the LAN966x device tree overlay

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Message-ID: <bf1a5649cd680213d66b249684b18afbc6083b6e.camel@pengutronix.de>
Date: Fri, 25 Oct 2024 18:17:30 +0200
From: Philipp Zabel <p.zabel@...gutronix.de>
To: Rob Herring <robh@...nel.org>, Herve Codina <herve.codina@...tlin.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>, linux-kernel@...r.kernel.org, 
 linux-next@...r.kernel.org, Arnd Bergmann <arnd@...db.de>, Greg
 Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] misc: Silence warnings when building the LAN966x device
 tree overlay

On Fr, 2024-10-25 at 10:40 -0500, Rob Herring wrote:
> On Fri, Oct 25, 2024 at 9:54 AM Philipp Zabel <p.zabel@...gutronix.de> wrote:
> > 
> > Silence the following warnings when building the LAN966x device tree
> > overlay:
> > 
> > drivers/misc/lan966x_pci.dtso:34.23-40.7: Warning (interrupts_property): /fragment@..._overlay__/pci-ep-bus@...ic@...c0120: Missing interrupt-parent
> 
> > drivers/misc/lan966x_pci.dtso:42.22-46.7: Warning (simple_bus_reg): /fragment@..._overlay__/pci-ep-bus@...pu_clk: missing or empty reg/ranges property
> > drivers/misc/lan966x_pci.dtso:48.22-52.7: Warning (simple_bus_reg): /fragment@..._overlay__/pci-ep-bus@...dr_clk: missing or empty reg/ranges property
> > drivers/misc/lan966x_pci.dtso:54.22-58.7: Warning (simple_bus_reg): /fragment@..._overlay__/pci-ep-bus@...ys_clk: missing or empty reg/ranges property
> 
> These nodes should be moved out of the simple-bus.

Ah, thank you. Hervé, can you send a follow-up to fix these?

> > drivers/misc/lan966x_pci.dtso:18.15-165.5: Warning (avoid_unnecessary_addr_size): /fragment@..._overlay__: unnecessary #address-cells/#size-cells without "ranges", "dma-ranges" or child "reg" property
> 
> For this one,  dtc should be fixed to also look for child "ranges" property.

Gave it a shot:

https://lore.kernel.org/devicetree-compiler/20241025161307.3629901-1-p.zabel@pengutronix.de/T/#u


> Aren't these other ones all W=1 warnings?

My bad, you are right. I'll drop them from this patch.

regards
Philipp