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Message-Id: <20211224200935.93817-9-j.neuschaefer@gmx.net>
Date: Fri, 24 Dec 2021 21:09:34 +0100
From: Jonathan Neuschäfer <j.neuschaefer@....net>
To: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org
Cc: Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh+dt@...nel.org>, openbmc@...ts.ozlabs.org,
Tomer Maimon <tmaimon77@...il.com>,
Joel Stanley <joel@....id.au>, linux-kernel@...r.kernel.org,
Andy Shevchenko <andy.shevchenko@...il.com>,
Avi Fishman <avifishman70@...il.com>,
Tali Perry <tali.perry1@...il.com>,
Patrick Venture <venture@...gle.com>,
Nancy Yuen <yuenn@...gle.com>,
Benjamin Fair <benjaminfair@...gle.com>,
Jonathan Neuschäfer <j.neuschaefer@....net>
Subject: [PATCH v3 8/9] ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons
The Supermicro X9SCi-LN4F server mainboard has a two LEDs and a button
under the control of the BMC. This patch makes them accessible under
Linux running on the BMC.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
---
v3:
- Adjust to schema changes
v2:
- https://lore.kernel.org/lkml/20211207210823.1975632-9-j.neuschaefer@gmx.net/
- Adjust to new GPIO controller names
- Explicitly set pinmux to GPIO for GPIO keys and LEDs
v1:
- https://lore.kernel.org/lkml/20210602120329.2444672-9-j.neuschaefer@gmx.net/
---
.../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 43 +++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
index 83f27fbf4e939..3ee61251a16d0 100644
--- a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
+++ b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts
@@ -8,6 +8,9 @@
#include "nuvoton-wpcm450.dtsi"
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/gpio/gpio.h>
+
/ {
model = "Supermicro X9SCi-LN4F BMC";
compatible = "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450";
@@ -20,6 +23,46 @@ memory@0 {
device_type = "memory";
reg = <0 0x08000000>; /* 128 MiB */
};
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&key_pins>;
+
+ uid {
+ label = "UID button";
+ linux,code = <KEY_HOME>;
+ gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ gpio-leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&led_pins>;
+
+ uid {
+ label = "UID";
+ gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+ };
+
+ heartbeat {
+ label = "heartbeat";
+ gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&pinctrl {
+ key_pins: mux-keys {
+ groups = "gspi", "sspi";
+ function = "gpio";
+ };
+
+ led_pins: mux-leds {
+ groups = "hg3", "hg0", "pwm4";
+ function = "gpio";
+ };
};
&serial0 {
--
2.30.2
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