diff mbox series

[1/2] dt-bindings: leds: Document netdev trigger netdev-trigger-mode property

Message ID 20250113002346.297481-1-marex@denx.de
State New
Headers show
Series [1/2] dt-bindings: leds: Document netdev trigger netdev-trigger-mode property | expand

Commit Message

Marek Vasut Jan. 13, 2025, 12:23 a.m. UTC
Document netdev trigger specific netdev-trigger-mode property which
is used to configure the netdev trigger mode flags. Those mode flags
define events on which the LED acts upon when the hardware offload is
enabled. This is traditionally configured via sysfs, but that depends
on udev rules which are available either too late or never in case of
non-Linux systems.

For each LED with linux,default-trigger = "netdev" described in DT, this
optional netdev-trigger-mode property supplies the default configuration
of the PHY LED mode via DT. This property should be set to a subset of
TRIGGER_NETDEV_* flags.

Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Christian Marangi <ansuelsmth@gmail.com>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-leds@vger.kernel.org
---
 Documentation/devicetree/bindings/leds/common.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Andrew Lunn Jan. 16, 2025, 1:32 p.m. UTC | #1
On Mon, Jan 13, 2025 at 01:23:37AM +0100, Marek Vasut wrote:
> Document netdev trigger specific netdev-trigger-mode property which
> is used to configure the netdev trigger mode flags. Those mode flags
> define events on which the LED acts upon when the hardware offload is
> enabled. This is traditionally configured via sysfs, but that depends
> on udev rules which are available either too late or never in case of
> non-Linux systems.
> 
> For each LED with linux,default-trigger = "netdev" described in DT, this
> optional netdev-trigger-mode property supplies the default configuration
> of the PHY LED mode via DT. This property should be set to a subset of
> TRIGGER_NETDEV_* flags.
> 
> Signed-off-by: Marek Vasut <marex@denx.de>
> ---
> Cc: Andrew Lunn <andrew@lunn.ch>
> Cc: Christian Marangi <ansuelsmth@gmail.com>
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Heiner Kallweit <hkallweit1@gmail.com>
> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Lee Jones <lee@kernel.org>
> Cc: Lukasz Majewski <lukma@denx.de>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-leds@vger.kernel.org
> ---
>  Documentation/devicetree/bindings/leds/common.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
> index 3e8319e443392..1f1148fdf20c0 100644
> --- a/Documentation/devicetree/bindings/leds/common.yaml
> +++ b/Documentation/devicetree/bindings/leds/common.yaml
> @@ -233,6 +233,12 @@ properties:
>        Maximum timeout in microseconds after which the flash LED is turned off.
>        Required for flash LED nodes with configurable timeout.
>  
> +  # Requires netdev trigger
> +  netdev-trigger-mode:
> +    description:
> +      The netdev LED trigger default mode flags, use TRIGGER_NETDEV_ * flags.
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +
>  allOf:
>    - if:
>        required:
> -- 

An example would be good.

In order to be able to use TRIGGER_NETDEV_* i assume you are doing an
include which is outside of the usual dt-bindings directory. I don't
know of the DT Maintainers opinion on that.

	Andrew
Christian Marangi Jan. 17, 2025, 4 p.m. UTC | #2
On Thu, Jan 16, 2025 at 02:32:13PM +0100, Andrew Lunn wrote:
> On Mon, Jan 13, 2025 at 01:23:37AM +0100, Marek Vasut wrote:
> > Document netdev trigger specific netdev-trigger-mode property which
> > is used to configure the netdev trigger mode flags. Those mode flags
> > define events on which the LED acts upon when the hardware offload is
> > enabled. This is traditionally configured via sysfs, but that depends
> > on udev rules which are available either too late or never in case of
> > non-Linux systems.
> > 
> > For each LED with linux,default-trigger = "netdev" described in DT, this
> > optional netdev-trigger-mode property supplies the default configuration
> > of the PHY LED mode via DT. This property should be set to a subset of
> > TRIGGER_NETDEV_* flags.
> > 
> > Signed-off-by: Marek Vasut <marex@denx.de>
> > ---
> > Cc: Andrew Lunn <andrew@lunn.ch>
> > Cc: Christian Marangi <ansuelsmth@gmail.com>
> > Cc: Conor Dooley <conor+dt@kernel.org>
> > Cc: Heiner Kallweit <hkallweit1@gmail.com>
> > Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
> > Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> > Cc: Lee Jones <lee@kernel.org>
> > Cc: Lukasz Majewski <lukma@denx.de>
> > Cc: Pavel Machek <pavel@ucw.cz>
> > Cc: Rob Herring <robh@kernel.org>
> > Cc: devicetree@vger.kernel.org
> > Cc: linux-leds@vger.kernel.org
> > ---
> >  Documentation/devicetree/bindings/leds/common.yaml | 6 ++++++
> >  1 file changed, 6 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
> > index 3e8319e443392..1f1148fdf20c0 100644
> > --- a/Documentation/devicetree/bindings/leds/common.yaml
> > +++ b/Documentation/devicetree/bindings/leds/common.yaml
> > @@ -233,6 +233,12 @@ properties:
> >        Maximum timeout in microseconds after which the flash LED is turned off.
> >        Required for flash LED nodes with configurable timeout.
> >  
> > +  # Requires netdev trigger
> > +  netdev-trigger-mode:
> > +    description:
> > +      The netdev LED trigger default mode flags, use TRIGGER_NETDEV_ * flags.
> > +    $ref: /schemas/types.yaml#/definitions/uint32-array
> > +
> >  allOf:
> >    - if:
> >        required:
> > -- 
> 
> An example would be good.
> 
> In order to be able to use TRIGGER_NETDEV_* i assume you are doing an
> include which is outside of the usual dt-bindings directory. I don't
> know of the DT Maintainers opinion on that.
>

Well I think we can just move those include to dt-bindings or at worst
define new one (maybe less driver specific) and reference the internal
one... Should not be a problem in theory.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
index 3e8319e443392..1f1148fdf20c0 100644
--- a/Documentation/devicetree/bindings/leds/common.yaml
+++ b/Documentation/devicetree/bindings/leds/common.yaml
@@ -233,6 +233,12 @@  properties:
       Maximum timeout in microseconds after which the flash LED is turned off.
       Required for flash LED nodes with configurable timeout.
 
+  # Requires netdev trigger
+  netdev-trigger-mode:
+    description:
+      The netdev LED trigger default mode flags, use TRIGGER_NETDEV_ * flags.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
 allOf:
   - if:
       required: