linux-kernel - [net-next,PATCH v2 0/2] Fixes for stm32-dwmac driver fails to probe

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Message-ID: <20240701064838.425521-1-christophe.roullier@foss.st.com>
Date: Mon, 1 Jul 2024 08:48:36 +0200
From: Christophe Roullier <christophe.roullier@...s.st.com>
To: "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni
	<pabeni@...hat.com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>,
        Richard Cochran <richardcochran@...il.com>,
        Jose Abreu <joabreu@...opsys.com>, Liam Girdwood <lgirdwood@...il.com>,
        Mark
 Brown <broonie@...nel.org>,
        Christophe Roullier
	<christophe.roullier@...s.st.com>,
        Marek Vasut <marex@...x.de>
CC: <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [net-next,PATCH v2 0/2] Fixes for stm32-dwmac driver fails to probe

Mark Brown found issue during stm32-dwmac probe:

For the past few days networking has been broken on the Avenger 96, a
stm32mp157a based platform.  The stm32-dwmac driver fails to probe:

<6>[    1.894271] stm32-dwmac 5800a000.ethernet: IRQ eth_wake_irq not found
<6>[    1.899694] stm32-dwmac 5800a000.ethernet: IRQ eth_lpi not found
<6>[    1.905849] stm32-dwmac 5800a000.ethernet: IRQ sfty not found
<3>[    1.912304] stm32-dwmac 5800a000.ethernet: Unable to parse OF data
<3>[    1.918393] stm32-dwmac 5800a000.ethernet: probe with driver stm32-dwmac failed with error -75

which looks a bit odd given the commit contents but I didn't look at the
driver code at all.

Full boot log here:

   https://lava.sirena.org.uk/scheduler/job/467150

A working equivalent is here:

   https://lava.sirena.org.uk/scheduler/job/466518

I delivered 2 fixes to solve issue.

V2: - remark from Marek (commit msgs)

Christophe Roullier (2):
  net: stmmac: dwmac-stm32: Add test to verify if ETHCK is used before
    checking clk rate
  net: stmmac: dwmac-stm32: update err status in case different of
    stm32mp13

 drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)


base-commit: 30972a4ea092bacb9784fe251327571be6a99f9c
-- 
2.25.1