From: Luca Weiss <luca@z3ntu.xyz>
To: linux-leds@vger.kernel.org
Cc: Dan Murphy <dmurphy@ti.com>, Heiko Stuebner <heiko@sntech.de>,
Icenowy Zheng <icenowy@aosc.io>,
Jacek Anaszewski <jacek.anaszewski@gmail.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Mark Rutland <mark.rutland@arm.com>,
Maxime Ripard <mripard@kernel.org>, Pavel Machek <pavel@ucw.cz>,
Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
~postmarketos/upstreaming@lists.sr.ht,
Luca Weiss <luca@z3ntu.xyz>
Subject: [PATCH 2/3] dt-bindings: leds: Add binding for sgm3140
Date: Mon, 9 Mar 2020 21:35:57 +0100 [thread overview]
Message-ID: <20200309203558.305725-3-luca@z3ntu.xyz> (raw)
In-Reply-To: <20200309203558.305725-1-luca@z3ntu.xyz>
Add YAML devicetree binding for SGMICRO SGM3140 charge pump used for
camera flash LEDs.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
---
Changes since RFC:
- new patch
I'm not sure about the completeness of this binding as it doesn't
mention the led subnode at all.
The only existing led yaml binding is leds/leds-max77650.yaml which
mentions the subnode but duplicates properties from documented in
leds/common.txt.
.../bindings/leds/leds-sgm3140.yaml | 53 +++++++++++++++++++
1 file changed, 53 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-sgm3140.yaml
diff --git a/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml
new file mode 100644
index 000000000000..be9384573d02
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-sgm3140.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver
+
+maintainers:
+ - Luca Weiss <luca@z3ntu.xyz>
+
+description: |
+ The SGM3140 is a current-regulated charge pump which can regulate two current
+ levels for Flash and Torch modes.
+
+ It is controlled with two GPIO pins.
+
+ The data sheet can be found at:
+ http://www.sg-micro.com/uploads/soft/20190626/1561535688.pdf
+
+properties:
+ compatible:
+ const: sgmicro,sgm3140
+
+ enable-gpios:
+ maxItems: 1
+ description: A connection to the 'EN' pin.
+
+ flash-gpios:
+ maxItems: 1
+ description: A connection to the 'FLASH' pin.
+
+required:
+ - compatible
+ - flash-gpios
+ - enable-gpios
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
+
+ sgm3140 {
+ compatible = "sgmicro,sgm3140";
+ flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
+ enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */
+
+ sgm3140_flash: led {
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ flash-max-timeout-us = <250000>;
+ };
+ };
--
2.25.1
next prev parent reply other threads:[~2020-03-09 20:36 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 20:35 [PATCH 0/3] Add sgm3140 flash led driver Luca Weiss
2020-03-09 20:35 ` [PATCH 1/3] dt-bindings: Add vendor prefix for SG Micro Corp Luca Weiss
2020-03-23 20:54 ` Rob Herring
2020-03-09 20:35 ` Luca Weiss [this message]
2020-03-09 22:22 ` [PATCH 2/3] dt-bindings: leds: Add binding for sgm3140 Sakari Ailus
2020-03-11 12:49 ` Dan Murphy
2020-03-15 10:47 ` Luca Weiss
2020-03-15 10:53 ` Laurent Pinchart
2020-03-23 21:30 ` Dan Murphy
2020-03-23 20:57 ` Rob Herring
2020-03-24 20:02 ` Luca Weiss
2020-03-09 20:35 ` [PATCH 3/3] leds: add sgm3140 driver Luca Weiss
2020-03-09 22:18 ` Sakari Ailus
2020-03-09 22:49 ` Pavel Machek
2020-03-09 22:52 ` Luca Weiss
2020-03-11 13:02 ` Dan Murphy
2020-03-11 21:09 ` Jacek Anaszewski
2020-03-15 10:42 ` Luca Weiss
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