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Message-ID: <20241103183636.40cc37fc@akair>
Date: Sun, 3 Nov 2024 18:36:36 +0100
From: Andreas Kemnade <andreas@...nade.info>
To: Mithil Bavishi <bavishimithil@...il.com>
Cc: aaro.koskinen@....fi, conor+dt@...nel.org, devicetree@...r.kernel.org,
 khilman@...libre.com, krzk+dt@...nel.org, linux-hardening@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org, robh@...nel.org,
 rogerq@...nel.org, tony@...mide.com
Subject: Re: [PATCH v2 2/6] arm/dts: Add common device tree for Samsung
 Galaxy Tab 2 series

Am Thu, 31 Oct 2024 10:41:45 +0000
schrieb Mithil Bavishi <bavishimithil@...il.com>:

> > well, that takes time, I wanted to start that on the right thing.  
> 
> Yes indeed, I'll be more careful the next time, again sorry for the 
> trouble, I am not used to the process of mailing lists and may have
> done some mistakes there as well.
> 
probably you did not notice an error in make dtbs and the old
devicetree on the device was still there and was used.

> > 1. make dtbs shows warnings  
> 
> > 2. make CHECK_DTBS=y ti/omap/omap4-samsung-espresso7.dtb is too
> > noisy (probably same for espresso10).  
> 
> > a lot comes from the dtsi files, so you need to ignore a lot,
> > probably either strip down the new dts to almost nothing besides
> > dtsi includes to determine the background noise or take a similar
> > device, redirect output and errors, diff that output with the full
> > devicetree. I am trying to clean that dtsi warning mess up,
> > linux-next shows a lot less warnings but that takes time.  
> 
> Oh, I was not aware of such tool, ran it and yeah there are a ton of
> warnings, where can I ask for assitance if I need it while fixing
> them.
> 
I hope you understood that warnings like this:
arch/arm/boot/dts/ti/omap/omap4-samsung-espresso7.dtb:
/ocp/interconnect@...00000/segment@...arget-module@...0/cm1@...locks/pad_clks_ck@108:
failed to match any schema with compatible: ['ti,gate-clock']

are not the ones you need to fix, so just the diff between old and new.

> > One of the warnings that should be fixed:
> > dts/ti/omap/omap4-samsung-espresso7.dtb: lvds-encoder: compatible:
> > 'oneOf' conditional failed, one must be fixed: ['lvds-encoder'] is
> > too short 'lvds-encoder' is not one of ['ti,ds90c185',
> > 'ti,ds90c187', 'ti,sn75lvds83'] 'lvds-encoder' is not one of
> > ['ti,ds90cf364a', 'ti,ds90cf384a', 'ti,sn65lvds94'] 'lvds-encoder'
> > is not one of ['thine,thc63lvdm83d'] from schema $id:
> > 	http://devicetree.org/schemas/display/bridge/lvds-codec.yaml
> >  
> 
> Ah right, I have to add the encoder (doestek, dtc34lm85am) in
> bindings and in vendor, this patchset may grow too big I assume.
>
You can do the binding stuff separately, lvds-encoder/panel should be
trivial, so one patch for vendor prefix if needed and one for the
binding.

Regards,
Andreas

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