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From: Andrew Lunn <andrew@lunn.ch>
To: Pavel Machek <pavel@ucw.cz>
Cc: "Marek Behún" <marek.behun@nic.cz>,
	netdev@vger.kernel.org, linux-leds@vger.kernel.org,
	"Dan Murphy" <dmurphy@ti.com>,
	"Ondřej Jirman" <megous@megous.com>,
	"Russell King" <linux@armlinux.org.uk>,
	linux-kernel@vger.kernel.org,
	"Matthias Schiffer" <matthias.schiffer@ew.tq-group.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH net-next + leds v2 6/7] net: phy: marvell: add support for LEDs controlled by Marvell PHYs
Date: Thu, 10 Sep 2020 20:31:54 +0200	[thread overview]
Message-ID: <20200910183154.GF3354160@lunn.ch> (raw)
In-Reply-To: <20200910182434.GA22845@duo.ucw.cz>

On Thu, Sep 10, 2020 at 08:24:34PM +0200, Pavel Machek wrote:
> On Thu 2020-09-10 15:15:41, Andrew Lunn wrote:
> > On Thu, Sep 10, 2020 at 02:23:41PM +0200, Pavel Machek wrote:
> > > On Wed 2020-09-09 18:25:51, Marek Behún wrote:
> > > > This patch adds support for controlling the LEDs connected to several
> > > > families of Marvell PHYs via the PHY HW LED trigger API. These families
> > > > are: 88E1112, 88E1121R, 88E1240, 88E1340S, 88E1510 and 88E1545. More can
> > > > be added.
> > > > 
> > > > This patch does not yet add support for compound LED modes. This could
> > > > be achieved via the LED multicolor framework.
> > > > 
> > > > Settings such as HW blink rate or pulse stretch duration are not yet
> > > > supported.
> > > > 
> > > > Signed-off-by: Marek Behún <marek.behun@nic.cz>
> > > 
> > > I suggest limiting to "useful" hardware modes, and documenting what
> > > those modes do somewhere.
> > 
> > I think to keep the YAML DT verification happy, they will need to be
> > listed in the marvell PHY binding documentation.
> 
> Well, this should really go to the sysfs documenation. Not sure what
> to do with DT.

In DT you can set how you want the LED to blink by default. I expect
that will be the most frequent use cases, and nearly nobody will
change it at runtime.

> But perhaps driver can set reasonable defaults without DT input?

Generally the driver will default to the hardware reset blink
pattern. There are a few PHY drivers which change this at probe, but
not many. The silicon defaults are pretty good.

    Andrew

  reply	other threads:[~2020-09-10 18:32 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-09 16:25 [PATCH net-next + leds v2 0/7] PLEASE REVIEW: Add support for LEDs on Marvell PHYs Marek Behún
2020-09-09 16:25 ` [PATCH net-next + leds v2 1/7] dt-bindings: leds: document binding for HW controlled LEDs Marek Behún
2020-09-09 18:27   ` Andrew Lunn
2020-09-09 18:33     ` Marek Behún
2020-09-09 20:59       ` Rob Herring
2020-09-09 21:07         ` Marek Behun
2020-09-09 21:31           ` Rob Herring
2020-09-09 21:43             ` Marek Behun
2020-09-09 20:56   ` Rob Herring
2020-09-09 21:15   ` Rob Herring
2020-09-09 21:58     ` Marek Behun
2020-09-09 16:25 ` [PATCH net-next + leds v2 2/7] leds: add generic API for LEDs that can be controlled by hardware Marek Behún
2020-09-09 18:20   ` Randy Dunlap
2020-09-09 18:31     ` Marek Behún
2020-09-09 18:43       ` Randy Dunlap
2020-09-09 20:48   ` Pavel Machek
2020-09-09 21:20     ` Marek Behun
2020-09-09 21:40       ` Pavel Machek
2020-09-09 22:15         ` Marek Behun
2020-09-09 22:20           ` Pavel Machek
2020-09-09 16:25 ` [PATCH net-next + leds v2 3/7] net: phy: add simple incrementing phyindex member to phy_device struct Marek Behún
2020-09-10 12:20   ` Pavel Machek
2020-09-09 16:25 ` [PATCH net-next + leds v2 4/7] dt-bindings: net: ethernet-phy: add description for PHY LEDs Marek Behún
2020-09-09 16:25 ` [PATCH net-next + leds v2 5/7] net: phy: add support for LEDs controlled by ethernet PHY chips Marek Behún
2020-09-10 12:22   ` Pavel Machek
2020-09-09 16:25 ` [PATCH net-next + leds v2 6/7] net: phy: marvell: add support for LEDs controlled by Marvell PHYs Marek Behún
2020-09-10 12:23   ` Pavel Machek
2020-09-10 13:15     ` Andrew Lunn
2020-09-10 14:15       ` Marek Behún
2020-09-10 14:46         ` Andrew Lunn
2020-09-10 15:00         ` Andrew Lunn
2020-09-11  7:12           ` Matthias Schiffer
2020-09-11 12:42             ` Andrew Lunn
2020-09-11 12:52             ` Marek Behún
2020-09-10 20:23         ` Pavel Machek
2020-09-10 20:31           ` Andrew Lunn
2020-09-10 20:39             ` Pavel Machek
2020-09-10 20:41           ` Marek Behun
2020-09-10 18:24       ` Pavel Machek
2020-09-10 18:31         ` Andrew Lunn [this message]
2020-09-10 18:34           ` Russell King - ARM Linux admin
2020-09-10 20:31             ` Marek Behun
2020-09-10 21:44               ` Russell King - ARM Linux admin
2020-09-11 12:53                 ` Marek Behún
2020-09-09 16:25 ` [PATCH net-next + mvebu v2 7/7] arm64: dts: armada-3720-turris-mox: add nodes for ethernet PHY LEDs Marek Behún
2020-09-10 12:25   ` Pavel Machek
2020-09-09 21:42 ` [PATCH net-next + leds v2 0/7] PLEASE REVIEW: Add support for LEDs on Marvell PHYs Andrew Lunn
2020-09-09 22:11   ` Marek Behun
2020-09-09 22:39     ` Andrew Lunn

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