From: Andrew Lunn <andrew@lunn.ch>
To: Holger Brunck <holger.brunck@hitachienergy.com>
Cc: netdev@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>
Subject: Re: [PATCH 2/2] dsa: mv88e6xxx: make serdes SGMII/Fiber output amplitude configurable
Date: Fri, 26 Nov 2021 17:16:21 +0100 [thread overview]
Message-ID: <YaEIVQ6gKOSD1Vf/@lunn.ch> (raw)
In-Reply-To: <20211126154249.2958-2-holger.brunck@hitachienergy.com>
> + if (chip->info->ops->serdes_set_out_amplitude && np) {
> + if (!of_property_read_u32(np, "serdes-output-amplitude",
> + &out_amp)) {
> + err = mv88e6352_serdes_set_out_amplitude(chip, out_amp);
> + if (err)
> + goto unlock;
> + }
> + }
If the property is in DT, but the device does not have a
ops->serdes_set_out_amplitude(), please return -EOPNOTSUP. We want to
avoid the case somebody wrongly cut/pastes a DT fragment to a
different switch.
Andrew
next prev parent reply other threads:[~2021-11-26 16:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-26 15:42 [PATCH 1/2] Docs/devicetree: add serdes-output-amplitude to marvell.txt Holger Brunck
2021-11-26 15:42 ` [PATCH 2/2] dsa: mv88e6xxx: make serdes SGMII/Fiber output amplitude configurable Holger Brunck
2021-11-26 16:16 ` Andrew Lunn [this message]
2021-11-26 19:56 ` Marek Behún
2021-11-26 20:43 ` Andrew Lunn
2021-11-26 21:13 ` Marek Behún
2021-11-26 21:49 ` Andrew Lunn
2021-11-29 11:17 ` Holger Brunck
2021-11-26 16:08 ` [PATCH 1/2] Docs/devicetree: add serdes-output-amplitude to marvell.txt Andrew Lunn
2021-11-29 10:40 ` Holger Brunck
2021-11-26 16:12 ` Andrew Lunn
2021-11-29 11:14 ` Holger Brunck
2021-11-26 18:37 ` Jakub Kicinski
2021-11-26 19:57 ` Jakub Kicinski
2021-11-26 23:14 ` Andrew Lunn
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