linux-kernel - [PATCH v6 3/3] ARM: dts: marvell: Add 7-segment LED display on x530

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Date: Fri,  8 Mar 2024 08:50:53 +1300
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: andy@...nel.org,
	geert@...ux-m68k.org,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org,
	andrew@...n.ch,
	gregory.clement@...tlin.com,
	sebastian.hesselbarth@...il.com,
	lee@...nel.org
Cc: linux-leds@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v6 3/3] ARM: dts: marvell: Add 7-segment LED display on x530

The Allied Telesis x530 products have a 7-segment LED display which is
used for node identification when the devices are stacked. Represent
this as a gpio-7-segment device.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---

Notes:
    Changes in v6:
    - None
    Changes in v5:
    - group GPIO specifiers
    Changes in v4:
    - Use correct compatible name in commit message
    Changes in v3:
    - Use compatible = "gpio-7-segment" as suggested by Rob
    Changes in v2:
    - Use compatible = "generic-gpio-7seg" to keep checkpatch.pl happy

 arch/arm/boot/dts/marvell/armada-385-atl-x530.dts | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/marvell/armada-385-atl-x530.dts b/arch/arm/boot/dts/marvell/armada-385-atl-x530.dts
index 5a9ab8410b7b..2fb7304039be 100644
--- a/arch/arm/boot/dts/marvell/armada-385-atl-x530.dts
+++ b/arch/arm/boot/dts/marvell/armada-385-atl-x530.dts
@@ -43,6 +43,17 @@ uart0: serial@...00 {
 			};
 		};
 	};
+
+	led-7seg {
+		compatible = "gpio-7-segment";
+		segment-gpios = <&led_7seg_gpio 0 GPIO_ACTIVE_LOW>,
+				<&led_7seg_gpio 1 GPIO_ACTIVE_LOW>,
+				<&led_7seg_gpio 2 GPIO_ACTIVE_LOW>,
+				<&led_7seg_gpio 3 GPIO_ACTIVE_LOW>,
+				<&led_7seg_gpio 4 GPIO_ACTIVE_LOW>,
+				<&led_7seg_gpio 5 GPIO_ACTIVE_LOW>,
+				<&led_7seg_gpio 6 GPIO_ACTIVE_LOW>;
+	};
 };
 
 &pciec {
@@ -149,7 +160,7 @@ i2c@3 {
 			#size-cells = <0>;
 			reg = <3>;
 
-			gpio@20 {
+			led_7seg_gpio: gpio@20 {
 				compatible = "nxp,pca9554";
 				gpio-controller;
 				#gpio-cells = <2>;
-- 
2.43.2