linux-kernel - [RFC PATCH 5/6] ARM: dts: rainier: Add presence-detect and fault indictor GPIO expander

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 23 Jul 2021 17:28:57 +0930
From:   Andrew Jeffery <andrew@...id.au>
To:     linux-leds@...r.kernel.org, linux-gpio@...r.kernel.org
Cc:     clg@...d.org, robh+dt@...nel.org, joel@....id.au, pavel@....cz,
        linus.walleij@...aro.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [RFC PATCH 5/6] ARM: dts: rainier: Add presence-detect and fault indictor GPIO expander

Expose the ability for the hardware to indicate that it is present, and
if it is present, for the BMC to mark it as faulty.

Signed-off-by: Andrew Jeffery <andrew@...id.au>
---
 arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | 76 ++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
index 941c0489479a..84651d090965 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
@@ -1685,6 +1685,82 @@ eeprom@50 {
 		compatible = "atmel,24c64";
 		reg = <0x50>;
 	};
+
+	dbp0: led-controller@60 {
+		compatible = "nxp,pca9552";
+		reg = <0x60>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+		ngpios = <8>;
+		gpio-ranges = <&dbp0 0 8 8>;
+
+		led@0 {
+			label = "led-fault-0";
+			reg = <0>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+
+		led@1 {
+			label = "led-fault-1";
+			reg = <1>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+
+		led@2 {
+			label = "led-fault-2";
+			reg = <2>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+
+		led@3 {
+			label = "led-fault-3";
+			reg = <3>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+
+		led@4 {
+			label = "led-fault-4";
+			reg = <4>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+
+		led@5 {
+			label = "led-fault-5";
+			reg = <5>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+
+		led@6 {
+			label = "led-fault-6";
+			reg = <6>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+
+		led@7 {
+			label = "led-fault-7";
+			reg = <7>;
+			retain-state-shutdown;
+			default-state = "keep";
+			type = <PCA955X_TYPE_LED>;
+		};
+	};
 };
 
 &i2c14 {
-- 
2.30.2