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authorHartley Sweeten <hartleys@visionengravers.com>2009-07-20 18:22:36 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-07-21 17:20:48 +0100
commit3aa7a9a3cf8774f6701b1903a6353f9545f561ce (patch)
treeb370a85625ae8c3e0ffc9ac62d84e468734d12ef /arch/m68k/configs/apollo_defconfig
parent5d43f11bcf854d83b24c7ca6bb15d9ab9130159f (diff)
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[ARM] 5612/1: ep93xx: add platform LEDs
The EP93xx has two gpio pins specifically assigned to drive external LEDs. Add core support for these LEDs. On the EDB93xx development boards, the rdled is connected to an external reset circuit. Turning this led on for an extended amount of time will cause the circuit to issue a manual reset. Refer to Cirrus App Note AN258 for more information. http://www.cirrus.com/en/pubs/appNote/AN258REV2.pdf This led can be safely used as the system heartbeat with the ledtrig-heartbeat driver. echo heartbeat > /sys/class/leds/platform:rdled/trigger The grled can be used for any desired purpose. Tested-by: Matthieu Crapet <mcrapet@gmail.com> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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