linux-kernel - [PATCH 1/2] doc: dt/bindings: input: introduce palmas power button description

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]

Message-ID: <1408392810-16011-2-git-send-email-nm@ti.com>
Date:	Mon, 18 Aug 2014 15:13:29 -0500
From:	Nishanth Menon <nm@...com>
To:	Dmitry Torokhov <dtor@...l.ru>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-input@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, Nishanth Menon <nm@...com>
Subject: [PATCH 1/2] doc: dt/bindings: input: introduce palmas power button description

Many palmas family of PMICs have support for interrupt based power
button. This allows the device to notify the processor of external
push button events over the shared palmas interrupt.

Document the hardware support for the same.

Signed-off-by: Nishanth Menon <nm@...com>
---
 .../bindings/input/ti,palmas-pwrbutton.txt         |   32 ++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/ti,palmas-pwrbutton.txt

diff --git a/Documentation/devicetree/bindings/input/ti,palmas-pwrbutton.txt b/Documentation/devicetree/bindings/input/ti,palmas-pwrbutton.txt
new file mode 100644
index 0000000..6a89bcd
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ti,palmas-pwrbutton.txt
@@ -0,0 +1,32 @@
+Texas Instruments Palmas family power button module
+
+This module is part of the Palmas family of PMICs. For more details
+about the whole chip see:
+Documentation/devicetree/bindings/mfd/palmas.txt.
+
+This module provides a simple power button event via an Interrupt.
+
+Required properties:
+- compatible: should be one of the following
+   - "ti,palmas-pwrbutton": For Palmas compatible power on button
+- interrupt-parent: Parent interrupt device, must be handle of palmas node.
+- interrupts: Interrupt number of power button submodule on device.
+
+Optional Properties:
+
+- ti,palmas-long-press-seconds: Duration in seconds which the power
+  button should be kept pressed for Palmas to power off automatically.
+  NOTE: This depends on OTP support and POWERHOLD signal configuration
+  on platform.
+
+Example:
+
+&palmas {
+	palmas_pwr_button: pwrbutton {
+		compatible = "ti,palmas-pwrbutton";
+		interrupt-parent = <&tps659038>;
+		interrupts = <1 IRQ_TYPE_NONE>;
+		wakeup-source;
+		ti,palmas-long-press-seconds = <12>;
+	};
+};
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/