From: Dan Murphy <dmurphy@ti.com>
To: Oleh Kravchenko <oleg@kaa.org.ua>, <devicetree@vger.kernel.org>,
<linux-leds@vger.kernel.org>, <jacek.anaszewski@gmail.com>,
<pavel@ucw.cz>
Subject: Re: [PATCH v11 1/2] dt-bindings: Add docs for EL15203000
Date: Thu, 19 Sep 2019 08:49:15 -0500 [thread overview]
Message-ID: <76f24ad8-a375-45f8-a1e1-f9e90bcbc95d@ti.com> (raw)
In-Reply-To: <20190919125313.24081-2-oleg@kaa.org.ua>
Oleh
On 9/19/19 7:53 AM, Oleh Kravchenko wrote:
> Add documentation and example for dt-bindings EL15203000.
> LED board (aka RED LED board) from Crane Merchandising Systems.
>
> Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
> ---
> .../bindings/leds/leds-el15203000.txt | 69 +++++++++++++++++++
> 1 file changed, 69 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/leds-el15203000.txt
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-el15203000.txt b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
> new file mode 100644
> index 000000000000..1bcd341967f8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
> @@ -0,0 +1,69 @@
> +Crane Merchandising System - EL15203000 LED driver
> +--------------------------------------------------
> +
> +This LED Board (aka RED LEDs board) is widely used in
> +coffee vending machines produced by Crane Merchandising Systems.
> +The board manages 3 LEDs and supports predefined blinking patterns
> +for specific leds.
> +
> +Vending area LED encoded with symbol 'V' (hex code 0x56).
> +Doesn't have any hardware blinking pattern.
> +
> +Screen light tube LED which surrounds vending machine screen and
> +encoded with symbol 'S' (hex code 0x53). Supports blinking breathing pattern.
> +
> +Water Pipe LED encoded with symbol 'P' (hex code 0x50) and
> +actually consists from 5 LEDs that exposed by protocol like one LED.
> +Supports next patterns:
> +- cascade pattern
> +- inversed cascade pattern
> +- bounce pattern
> +- inversed bounce pattern
> +
> +Required properties:
> +- compatible : "crane,el15203000"
> +- #address-cells : must be 1
> +- #size-cells : must be 0
> +
> +Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
> +apply. In particular, "reg" and "spi-max-frequency" properties must be given.
> +
> +Optional LED sub-node properties:
> +- function:
> + see Documentation/devicetree/bindings/leds/common.txt
> +- color:
> + see Documentation/devicetree/bindings/leds/common.txt
> +
> +Example
> +-------
> +
> +#include <dt-bindings/leds/common.h>
> +
> +led-controller@0 {
> + compatible = "crane,el15203000";
> + reg = <0>;
> + spi-max-frequency = <50000>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + /* water pipe */
> + led@50 {
> + reg = <0x50>;
> + function = "pipe";
> + color = <LED_COLOR_ID_RED>;
> + };
> +
> + /* screen frame */
> + led@53 {
> + reg = <0x53>;
> + function = "screen";
> + color = <LED_COLOR_ID_RED>;
> + };
> +
> + /* vending area */
> + led@56 {
> + reg = <0x56>;
> + function = "vend";
> + color = <LED_COLOR_ID_RED>;
> + };
> +};
next prev parent reply other threads:[~2019-09-19 13:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-19 12:53 v11 EL15203000 Oleh Kravchenko
2019-09-19 12:53 ` [PATCH v11 1/2] dt-bindings: Add docs for EL15203000 Oleh Kravchenko
2019-09-19 13:49 ` Dan Murphy [this message]
2019-09-19 19:49 ` Jacek Anaszewski
2019-09-19 20:04 ` Oleh Kravchenko
2019-09-19 12:53 ` [PATCH v11 2/2] leds: add LED driver for EL15203000 board Oleh Kravchenko
2019-09-19 20:10 ` Jacek Anaszewski
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