linux-kernel - Re: [PATCH] Revert "bus: ti-sysc: Probe for l4_wkup and l4

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Message-ID: <20250401035745.GG4957@atomide.com>
Date: Tue, 1 Apr 2025 06:57:45 +0300
From: Tony Lindgren <tony@...mide.com>
To: Andreas Kemnade <andreas@...nade.info>
Cc: "A. Sverdlin" <alexander.sverdlin@...mens.com>,
	linux-omap@...r.kernel.org, Aaro Koskinen <aaro.koskinen@....fi>,
	Kevin Hilman <khilman@...libre.com>,
	Roger Quadros <rogerq@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Revert "bus: ti-sysc: Probe for l4_wkup and l4_cfg
 interconnect devices first"

* Andreas Kemnade <andreas@...nade.info> [250331 09:00]:
> Am Thu, 13 Mar 2025 10:47:06 +0100
> schrieb "A. Sverdlin" <alexander.sverdlin@...mens.com>:
> 
> > From: Alexander Sverdlin <alexander.sverdlin@...mens.com>
> > 
> > This reverts commit 4700a00755fb5a4bb5109128297d6fd2d1272ee6.
> > 
> > It brakes target-module@...00050 ("ti,sysc-omap2") probe on AM62x in a case
> > when minimally-configured system tries to network-boot:
> > 
> > [    6.888776] probe of 2b300050.target-module returned 517 after 258 usecs
> > [   17.129637] probe of 2b300050.target-module returned 517 after 708 usecs
> > [   17.137397] platform 2b300050.target-module: deferred probe pending: (reason unknown)
> > [   26.878471] Waiting up to 100 more seconds for network.
> > 
> > Arbitrary 10 deferrals is really not a solution to any problem.
> > Stable mmc enumeration can be achiever by filling /aliases node properly
> > (4700a00755fb commit's rationale).

Would be nice to update the description to make it clear it breaks in all
cases if there are not enough devices.

> > After revert:
> > 
> > [    9.006816] IP-Config: Complete:
> > [    9.010058]      device=lan0, ...
> > 
> > Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...mens.com>
> 
> No regressions seen on GTA04, Pandaboard and BT200.
> So
> 
> Tested-by: Andreas Kemnade <andreas@...nade.info> # GTA04, Panda, BT200

Good to hear, best that you or Kevin pick this up:

Reviewed-by: Tony Lindgren <tony@...mide.com>