From: Alexander Dahl <post@lespocky.de>
To: linux-leds@vger.kernel.org, devicetree@vger.kernel.org
Cc: "Jacek Anaszewski" <jacek.anaszewski@gmail.com>,
"Pavel Machek" <pavel@ucw.cz>, "Dan Murphy" <dmurphy@ti.com>,
"Rob Herring" <robh+dt@kernel.org>,
linux-kernel@vger.kernel.org,
"Peter Ujfalusi" <peter.ujfalusi@ti.com>,
"Marek Behún" <marek.behun@nic.cz>,
"Alexander Dahl" <ada@thorsis.com>,
"Alexander Dahl" <post@lespocky.de>
Subject: [PATCH v5 3/3] dt-bindings: leds: Convert pwm to yaml
Date: Sat, 19 Sep 2020 07:31:45 +0200 [thread overview]
Message-ID: <20200919053145.7564-4-post@lespocky.de> (raw)
In-Reply-To: <20200919053145.7564-1-post@lespocky.de>
The example was adapted slightly to make use of the 'function' and
'color' properties. License discussed with the original author.
Suggested-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Alexander Dahl <post@lespocky.de>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
Notes:
v4 -> v5:
* updated based on feedback by Rob Herring
* removed Acked-by
v3 -> v4:
* added Cc to original author of the binding
v2 -> v3:
* changed license identifier to recommended one
* added Acked-by
v2:
* added this patch to series (Suggested-by: Jacek Anaszewski)
.../devicetree/bindings/leds/leds-pwm.txt | 50 -----------
.../devicetree/bindings/leds/leds-pwm.yaml | 82 +++++++++++++++++++
2 files changed, 82 insertions(+), 50 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/leds/leds-pwm.txt
create mode 100644 Documentation/devicetree/bindings/leds/leds-pwm.yaml
diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.txt b/Documentation/devicetree/bindings/leds/leds-pwm.txt
deleted file mode 100644
index 6c6583c35f2f..000000000000
--- a/Documentation/devicetree/bindings/leds/leds-pwm.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-LED connected to PWM
-
-Required properties:
-- compatible : should be "pwm-leds".
-
-Each LED is represented as a sub-node of the pwm-leds device. Each
-node's name represents the name of the corresponding LED.
-
-LED sub-node properties:
-- pwms : PWM property to point to the PWM device (phandle)/port (id) and to
- specify the period time to be used: <&phandle id period_ns>;
-- pwm-names : (optional) Name to be used by the PWM subsystem for the PWM device
- For the pwms and pwm-names property please refer to:
- Documentation/devicetree/bindings/pwm/pwm.txt
-- max-brightness : Maximum brightness possible for the LED
-- active-low : (optional) For PWMs where the LED is wired to supply
- rather than ground.
-- label : (optional)
- see Documentation/devicetree/bindings/leds/common.txt
-- linux,default-trigger : (optional)
- see Documentation/devicetree/bindings/leds/common.txt
-
-Example:
-
-twl_pwm: pwm {
- /* provides two PWMs (id 0, 1 for PWM1 and PWM2) */
- compatible = "ti,twl6030-pwm";
- #pwm-cells = <2>;
-};
-
-twl_pwmled: pwmled {
- /* provides one PWM (id 0 for Charing indicator LED) */
- compatible = "ti,twl6030-pwmled";
- #pwm-cells = <2>;
-};
-
-pwmleds {
- compatible = "pwm-leds";
- kpad {
- label = "omap4::keypad";
- pwms = <&twl_pwm 0 7812500>;
- max-brightness = <127>;
- };
-
- charging {
- label = "omap4:green:chrg";
- pwms = <&twl_pwmled 0 7812500>;
- max-brightness = <255>;
- };
-};
diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.yaml b/Documentation/devicetree/bindings/leds/leds-pwm.yaml
new file mode 100644
index 000000000000..c9316811c7f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-pwm.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LEDs connected to PWM
+
+maintainers:
+ - Pavel Machek <pavel@ucw.cz>
+
+description:
+ Each LED is represented as a sub-node of the pwm-leds device. Each
+ node's name represents the name of the corresponding LED.
+
+properties:
+ compatible:
+ const: pwm-leds
+
+patternProperties:
+ "^led(-[0-9a-f]+)?$":
+ type: object
+
+ $ref: common.yaml#
+
+ properties:
+ pwms:
+ maxItems: 1
+
+ pwm-names: true
+
+ max-brightness:
+ description:
+ Maximum brightness possible for the LED
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ active-low:
+ description:
+ For PWMs where the LED is wired to supply rather than ground.
+ type: boolean
+
+ required:
+ - pwms
+ - max-brightness
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/leds/common.h>
+
+ twl_pwm: pwm {
+ /* provides two PWMs (id 0, 1 for PWM1 and PWM2) */
+ compatible = "ti,twl6030-pwm";
+ #pwm-cells = <2>;
+ };
+
+ twl_pwmled: pwmled {
+ /* provides one PWM (id 0 for Charing indicator LED) */
+ compatible = "ti,twl6030-pwmled";
+ #pwm-cells = <2>;
+ };
+
+ pwm_leds {
+ compatible = "pwm-leds";
+
+ led-1 {
+ label = "omap4::keypad";
+ pwms = <&twl_pwm 0 7812500>;
+ max-brightness = <127>;
+ };
+
+ led-2 {
+ color = <LED_COLOR_ID_GREEN>;
+ function = LED_FUNCTION_CHARGING;
+ pwms = <&twl_pwmled 0 7812500>;
+ max-brightness = <255>;
+ };
+ };
+
+...
--
2.20.1
next prev parent reply other threads:[~2020-09-19 5:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-19 5:31 [PATCH v5 0/3] leds: pwm: Make automatic labels work Alexander Dahl
2020-09-19 5:31 ` [PATCH v5 1/3] leds: pwm: Remove platform_data support Alexander Dahl
2020-09-19 9:44 ` Pavel Machek
2020-09-28 11:04 ` Alexander Dahl
2020-09-30 17:24 ` Pavel Machek
2020-09-30 22:57 ` Alexander Dahl
2020-09-19 18:05 ` Marek Behun
2020-09-19 5:31 ` [PATCH v5 2/3] leds: pwm: Allow automatic labels for DT based devices Alexander Dahl
2020-09-19 9:44 ` Pavel Machek
2020-09-19 5:31 ` Alexander Dahl [this message]
2020-09-22 15:42 ` [PATCH v5 3/3] dt-bindings: leds: Convert pwm to yaml Rob Herring
2020-09-28 11:19 ` Alexander Dahl
2020-09-28 16:11 ` Rob Herring
2020-09-22 15:57 ` Rob Herring
2020-09-29 7:39 ` Alexander Dahl
2020-09-29 13:58 ` Rob Herring
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