From 644af8bba1d83e06e251228eea6f10525cabe977 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Sat, 27 Sep 2014 09:55:44 +0200
Subject: [PATCH] logind: add support for TPS65217 Power Button

This PMIC is found on TI AM335x based boards like the beaglebone and
beaglebone black.

root@beaglebone-white:~# udevadm info -a /dev/input/event0

Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.

  looking at device
'/devices/ocp.3/44e0b000.i2c/i2c-0/0-0024/input/input0/event0':
    KERNEL=="event0"
    SUBSYSTEM=="input"
    DRIVER==""

  looking at parent device
'/devices/ocp.3/44e0b000.i2c/i2c-0/0-0024/input/input0':
    KERNELS=="input0"
    SUBSYSTEMS=="input"
    DRIVERS==""
    ATTRS{name}=="tps65217_pwr_but"
    ATTRS{phys}==""
    ATTRS{uniq}==""
    ATTRS{properties}=="0"

  looking at parent device '/devices/ocp.3/44e0b000.i2c/i2c-0/0-0024':
    KERNELS=="0-0024"
    SUBSYSTEMS=="i2c"
    DRIVERS=="tps65217"
    ATTRS{name}=="tps65217"

  looking at parent device '/devices/ocp.3/44e0b000.i2c/i2c-0':
    KERNELS=="i2c-0"
    SUBSYSTEMS=="i2c"
    DRIVERS==""
    ATTRS{name}=="OMAP I2C adapter"

  looking at parent device '/devices/ocp.3/44e0b000.i2c':
    KERNELS=="44e0b000.i2c"
    SUBSYSTEMS=="platform"
    DRIVERS=="omap_i2c"

  looking at parent device '/devices/ocp.3':
    KERNELS=="ocp.3"
    SUBSYSTEMS=="platform"
    DRIVERS==""

(cherry picked from commit 492d7a3038b154e1813a1ece913a5a27148fec19)
---
 src/login/70-power-switch.rules | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/login/70-power-switch.rules b/src/login/70-power-switch.rules
index a6997f7788..695d246370 100644
--- a/src/login/70-power-switch.rules
+++ b/src/login/70-power-switch.rules
@@ -10,5 +10,6 @@ ACTION=="remove", GOTO="power_switch_end"
 SUBSYSTEM=="input", KERNEL=="event*", SUBSYSTEMS=="acpi", TAG+="power-switch"
 SUBSYSTEM=="input", KERNEL=="event*", KERNELS=="thinkpad_acpi", TAG+="power-switch"
 SUBSYSTEM=="input", KERNEL=="event*", ATTRS{name}=="twl4030_pwrbutton", TAG+="power-switch"
+SUBSYSTEM=="input", KERNEL=="event*", ATTRS{name}=="tps65217_pwr_but", TAG+="power-switch"
 
 LABEL="power_switch_end"