From: Pavel Machek <pavel@ucw.cz>
To: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: linux-media@vger.kernel.org, niklas.soderlund@ragnatech.se,
robh@kernel.org, hverkuil@xs4all.nl,
laurent.pinchart@ideasonboard.com, linux-acpi@vger.kernel.org,
mika.westerberg@intel.com, devicetree@vger.kernel.org,
sre@kernel.org
Subject: Re: [PATCH v9 17/24] ACPI: Document how to refer to LEDs from remote nodes
Date: Sat, 9 Sep 2017 11:08:18 +0200 [thread overview]
Message-ID: <20170909090817.GG27428@amd> (raw)
In-Reply-To: <20170908131822.31020-13-sakari.ailus@linux.intel.com>
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On Fri 2017-09-08 16:18:15, Sakari Ailus wrote:
> Document referring to LEDs from remote device nodes, such as from camera
> sensors.
>
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> diff --git a/Documentation/acpi/dsd/leds.txt b/Documentation/acpi/dsd/leds.txt
> new file mode 100644
> index 000000000000..6217fcda15c9
> --- /dev/null
> +++ b/Documentation/acpi/dsd/leds.txt
> @@ -0,0 +1,92 @@
> +Describing and referring to LEDs in ACPI
> +
> +Individual LEDs are described by hierarchical data extension [6] nodes
> +under the device node, the LED driver chip. The "led" property in the
> +LED specific nodes tells the numerical ID of each individual LED. The
> +"led" property is used here in a similar fashion as the "reg" property
> +in DT. [3]
> +
> +Referring to LEDs in Devicetree is documented in [4], in "flash-leds"
> +property documentation. In short, LEDs are directly referred to by
> +using phandles.
> +
> +While Devicetree allows referring to any node in the tree[1], in
Documentation/devicetree/usage-model.txt talks about "device tree" or
"Device Tree" . Single word looks strange to me...
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2017-09-09 9:08 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-08 13:11 [PATCH v9 00/23] Unified fwnode endpoint parser, async sub-device notifier support, N9 flash DTS Sakari Ailus
2017-09-08 13:11 ` [PATCH v9 01/24] v4l: fwnode: Move KernelDoc documentation to the header Sakari Ailus
[not found] ` <20170908131235.30294-1-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-08 13:11 ` [PATCH v9 02/24] v4l: async: Remove re-probing support Sakari Ailus
2017-09-09 15:36 ` Laurent Pinchart
[not found] ` <20170908131235.30294-3-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-11 7:47 ` Hans Verkuil
[not found] ` <787019fe-7402-7edb-3de6-9a683de78d71-qWit8jRvyhVmR6Xm/wNWPw@public.gmane.org>
2017-09-11 7:51 ` Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 12/24] v4l: async: Register sub-devices before calling bound callback Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 15/24] dt: bindings: Add a binding for flash LED devices associated to a sensor Sakari Ailus
2017-09-09 9:08 ` Pavel Machek
2017-09-08 13:18 ` [PATCH v9 16/24] dt: bindings: Add lens-focus binding for image sensors Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 24/24] arm: dts: omap3: N9/N950: Add flash references to the camera Sakari Ailus
2017-09-09 18:32 ` Pavel Machek
2017-09-09 22:13 ` Sakari Ailus
2017-09-08 13:11 ` [PATCH v9 03/24] v4l: async: Use more intuitive names for internal functions Sakari Ailus
2017-09-09 9:15 ` Pavel Machek
2017-09-09 15:34 ` Laurent Pinchart
2017-09-11 7:51 ` Hans Verkuil
2017-09-08 13:11 ` [PATCH v9 04/24] v4l: async: Add V4L2 async documentation to the documentation build Sakari Ailus
[not found] ` <20170908131235.30294-5-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-09 15:37 ` Laurent Pinchart
2017-09-08 13:18 ` [PATCH v9 05/24] v4l: fwnode: Support generic parsing of graph endpoints in a device Sakari Ailus
[not found] ` <20170908131822.31020-1-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-11 7:59 ` Hans Verkuil
2017-09-08 13:18 ` [PATCH v9 06/24] omap3isp: Use generic parser for parsing fwnode endpoints Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 07/24] rcar-vin: " Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 08/24] omap3isp: Fix check for our own sub-devices Sakari Ailus
2017-09-09 9:16 ` Pavel Machek
2017-09-08 13:18 ` [PATCH v9 09/24] omap3isp: Print the name of the entity where no source pads could be found Sakari Ailus
2017-09-09 9:16 ` Pavel Machek
2017-09-08 13:18 ` [PATCH v9 10/24] v4l: async: Move async subdev notifier operations to a separate structure Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 11/24] v4l: async: Introduce helpers for calling async ops callbacks Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 13/24] v4l: async: Allow async notifier register call succeed with no subdevs Sakari Ailus
2017-09-11 8:05 ` Hans Verkuil
[not found] ` <beb494e4-44f7-2eec-8d24-8d92e23dafd2-qWit8jRvyhVmR6Xm/wNWPw@public.gmane.org>
2017-09-11 8:21 ` Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 14/24] v4l: async: Allow binding notifiers to sub-devices Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 17/24] ACPI: Document how to refer to LEDs from remote nodes Sakari Ailus
2017-09-08 13:43 ` Mika Westerberg
2017-09-08 13:54 ` Sakari Ailus
2017-09-08 13:58 ` Mika Westerberg
2017-09-09 9:08 ` Pavel Machek [this message]
2017-09-08 13:18 ` [PATCH v9 18/24] as3645a: Switch to fwnode property API Sakari Ailus
2017-09-09 9:19 ` Pavel Machek
[not found] ` <20170908131822.31020-14-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-09 19:06 ` Jacek Anaszewski
2017-09-09 21:36 ` Sakari Ailus
2017-09-11 21:10 ` Jacek Anaszewski
2017-09-08 13:18 ` [PATCH v9 19/24] v4l: fwnode: Add a helper function for parsing generic references Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 20/24] v4l: fwnode: Add a helper function to obtain device / interger references Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 21/24] v4l: fwnode: Add convenience function for parsing common external refs Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 22/24] smiapp: Add support for flash and lens devices Sakari Ailus
2017-09-09 21:47 ` [RFC] et8ek8: " Pavel Machek
2017-09-09 22:06 ` Sakari Ailus
2017-09-11 13:18 ` [PATCH] " Pavel Machek
2017-09-12 11:06 ` Sakari Ailus
2017-09-08 13:18 ` [PATCH v9 23/24] dt: bindings: smiapp: Document lens-focus and flash properties Sakari Ailus
[not found] ` <20170908131822.31020-19-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-09-08 13:36 ` Pavel Machek
2017-09-08 13:42 ` Sakari Ailus
2017-09-08 21:45 ` Pavel Machek
2017-09-11 7:45 ` Sakari Ailus
2017-09-08 13:25 ` [PATCH v9 00/23] Unified fwnode endpoint parser, async sub-device notifier support, N9 flash DTS Sakari Ailus
[not found] ` <20170908132507.nqofkw2g43m7ydux-S+BSfZ9RZZmRSg0ZkenSGLdO1Tsj/99ntUK59QYPAWc@public.gmane.org>
2017-09-09 9:34 ` Pavel Machek
2017-09-11 8:24 ` Sakari Ailus
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