linux-kernel - [PATCH V2 1/5] dt-bindings: fsl: scu: add scu power key binding

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-next>] [day] [month] [year] [list]

Date:   Tue,  3 Sep 2019 10:03:40 -0400
From:   Anson Huang <Anson.Huang@....com>
To:     robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        catalin.marinas@....com, will@...nel.org,
        dmitry.torokhov@...il.com, aisheng.dong@....com,
        ulf.hansson@...aro.org, fugang.duan@....com, peng.fan@....com,
        daniel.baluta@....com, leonard.crestez@....com, mripard@...nel.org,
        olof@...om.net, arnd@...db.de, jagan@...rulasolutions.com,
        bjorn.andersson@...aro.org, dinguyen@...nel.org,
        marcin.juszkiewicz@...aro.org, stefan@...er.ch,
        gregkh@...uxfoundation.org, andriy.shevchenko@...ux.intel.com,
        yuehaibing@...wei.com, tglx@...utronix.de, ronald@...ovation.ch,
        m.felsch@...gutronix.de, ping.bai@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-input@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH V2 1/5] dt-bindings: fsl: scu: add scu power key binding

NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as
system controller, the system controller is in charge of system
power, clock and power key event etc. management, Linux kernel
has to communicate with system controller via MU (message unit)
IPC to get power key event, add binding doc for i.MX system
controller power key driver.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
Changes since V1:
	- remove "wakeup-source" property, as it is NOT needed for SCU interrupt;
	- remove "status" in example.
---
 .../devicetree/bindings/arm/freescale/fsl,scu.txt          | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index c149fad..f93e2e4 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -157,6 +157,15 @@ Required properties:
 Optional properties:
 - timeout-sec: contains the watchdog timeout in seconds.
 
+Power key bindings based on SCU Message Protocol
+------------------------------------------------------------
+
+Required properties:
+- compatible: should be:
+              "fsl,imx8qxp-sc-pwrkey"
+              followed by "fsl,imx-sc-pwrkey";
+- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt
+
 Example (imx8qxp):
 -------------
 aliases {
@@ -220,6 +229,11 @@ firmware {
 			compatible = "fsl,imx8qxp-sc-rtc";
 		};
 
+		scu_pwrkey: scu-pwrkey {
+			compatible = "fsl,imx8qxp-sc-pwrkey", "fsl,imx-sc-pwrkey";
+			linux,keycode = <KEY_POWER>;
+		};
+
 		watchdog {
 			compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
 			timeout-sec = <60>;
-- 
2.7.4