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From: Linus Walleij <linus.walleij@linaro.org>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Christian Marangi <ansuelsmth@gmail.com>,
	Hans de Goede <hdegoede@redhat.com>, Pavel Machek <pavel@ucw.cz>,
	Lee Jones <lee@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	Jonathan Corbet <corbet@lwn.net>,
	"Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>,
	Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	John Crispin <john@phrozen.org>,
	linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	linux-doc@vger.kernel.org, Tim Harvey <tharvey@gateworks.com>,
	Alexander Stein <alexander.stein@ew.tq-group.com>,
	Rasmus Villemoes <rasmus.villemoes@prevas.dk>,
	Bagas Sanjaya <bagasdotme@gmail.com>,
	Arun.Ramadoss@microchip.com
Subject: Re: [PATCH v8 00/13] Adds support for PHY LEDs with offload triggers
Date: Fri, 10 Mar 2023 10:37:25 +0100	[thread overview]
Message-ID: <CACRpkdapuk39vcdNhmsMN0tbTPTSYUgY9r+EBJ-O+v2dsB=wNA@mail.gmail.com> (raw)
In-Reply-To: <8226f000-dd9c-4774-b972-a7f1113f0986@lunn.ch>

On Thu, Mar 9, 2023 at 4:22 PM Andrew Lunn <andrew@lunn.ch> wrote:

> As to 'how a certain trigger on a certain LED is going to associate
> itself with, say, a certain port' is clearly a property of the
> hardware, when offloading is supported. I've not seen a switch you can
> arbitrarily assign LEDs to ports. The Marvell switches have the LED
> registers within the port registers, for example, two LEDs per port.

Aha so there is an implicit HW dependency between the port and the
LED, that we just cannot see in the device tree. Okay, it makes sense.

I think there will be a day when a switch without LED controller appears,
but the system has a few LEDs for the ports connected to an
arbitrary GPIO controller, and then we will need this. But we have
not seen that yet :)

Yours,
Linus Walleij

  reply	other threads:[~2023-03-10  9:40 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-16  1:32 [PATCH v8 00/13] Adds support for PHY LEDs with offload triggers Christian Marangi
2023-02-16  1:32 ` [PATCH v8 01/13] leds: add support for hardware driven LEDs Christian Marangi
2023-02-16  1:32 ` [PATCH v8 02/13] leds: add function to configure hardware controlled LED Christian Marangi
2023-02-16  1:32 ` [PATCH v8 03/13] leds: trigger: netdev: drop NETDEV_LED_MODE_LINKUP from mode Christian Marangi
2023-02-16  1:32 ` [PATCH v8 04/13] leds: trigger: netdev: rename and expose NETDEV trigger enum modes Christian Marangi
2023-02-16  1:32 ` [PATCH v8 05/13] leds: trigger: netdev: convert device attr to macro Christian Marangi
2023-02-16  1:32 ` [PATCH v8 06/13] leds: trigger: netdev: add hardware control support Christian Marangi
2023-02-16  1:32 ` [PATCH v8 07/13] leds: trigger: netdev: use mutex instead of spinlocks Christian Marangi
2023-02-16  1:32 ` [PATCH v8 08/13] leds: trigger: netdev: add available mode sysfs attr Christian Marangi
2023-02-16  1:32 ` [PATCH v8 09/13] leds: trigger: netdev: add additional hardware only triggers Christian Marangi
2023-02-16  1:32 ` [PATCH v8 10/13] net: dsa: qca8k: add LEDs support Christian Marangi
2023-02-16  1:32 ` [PATCH v8 11/13] dt-bindings: leds: Document netdev trigger Christian Marangi
2023-02-17 23:03   ` Rob Herring
2023-02-17  5:58     ` Christian Marangi
2023-02-21  1:44       ` Rob Herring
2023-02-16  1:32 ` [PATCH v8 12/13] dt-bindings: net: phy: Document support for leds node Christian Marangi
2023-02-16  2:32   ` Rob Herring
2023-02-16 10:00     ` Christian Marangi
2023-02-17 23:10       ` Rob Herring
2023-02-16  1:32 ` [PATCH v8 13/13] dt-bindings: net: dsa: qca8k: add LEDs definition example Christian Marangi
2023-02-21  1:48   ` Rob Herring
2023-02-17 14:30 ` [PATCH v8 00/13] Adds support for PHY LEDs with offload triggers Andrew Lunn
2023-02-17  5:01   ` Christian Marangi
2023-02-22 15:02   ` Lee Jones
2023-03-06 18:43     ` Christian Marangi
2023-03-08 14:06       ` Lee Jones
2023-03-09  9:09 ` Linus Walleij
2023-03-09  9:32   ` Hans de Goede
2023-03-09 15:22   ` Andrew Lunn
2023-03-10  9:37     ` Linus Walleij [this message]
2023-03-10 15:15       ` Andrew Lunn
2023-03-13  9:28         ` Michael Walle

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