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| author | Vadim Pasternak <vadimp@mellanox.com> | 2016-09-08 07:25:53 +0000 |
|---|---|---|
| committer | Jacek Anaszewski <j.anaszewski@samsung.com> | 2016-09-15 16:49:39 +0200 |
| commit | be4fdf99fa4dc95aa01144b207caf2cc9fa074d8 (patch) | |
| tree | 3f976a3e9ad156a779a4fdd839a270d85348f0f2 /drivers/leds/Kconfig | |
| parent | 1f70cb4045cba47287fed3ba98dadc7187f13ef8 (diff) | |
| download | lwn-be4fdf99fa4dc95aa01144b207caf2cc9fa074d8.tar.gz lwn-be4fdf99fa4dc95aa01144b207caf2cc9fa074d8.zip | |
leds: add driver for Mellanox systems LEDs
This makes it possible to create a set of LEDs for Mellanox systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100".
Driver obtains LED devices according to system configuration, provided
through system DMI data, like mlxcpld:fan1:green, mlxcpld:fan1:red and
creates devices in form: "devicename:colour:function".
LED setting is controlled through on board CPLD Lattice device.
For setting particular LED off, solid, blink:
echo 0 > /sys/class/leds/mlxcpld\:status\:green/brightness
echo 1 > /sys/class/leds/mlxcpld\:status\:green/brightness
echo timer > /sys/class/leds/mlxcpld\:status\:green/trigger
On module probing all LEDs are set green, on removing - off.
Last setting overwrites previous, f.e. sequence for
changing LED from green - red - green:
echo 1 > /sys/class/leds/mlxcpld\:psu\:green/brightness
echo 1 > /sys/class/leds/mlxcpld\:psu\:red/brightness
echo 1 > /sys/class/leds/mlxcpld\:psu\:green/brightness
Note: LEDs cannot be turned on/off simultaneously.
The Kconfig currently controlling compilation of this code is:
drivers/leds/Kconfig:config LEDS_MLXCPLD
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Diffstat (limited to 'drivers/leds/Kconfig')
| -rw-r--r-- | drivers/leds/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 969c720dfd10..7a628c6516f6 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -651,6 +651,14 @@ config LEDS_PM8058 Choose this option if you want to use the LED drivers in the Qualcomm PM8058 PMIC. +config LEDS_MLXCPLD + tristate "LED support for the Mellanox boards" + depends on X86_64 && DMI + depends on LEDS_CLASS + help + This option enabled support for the LEDs on the Mellanox + boards. Say Y to enabled these. + comment "LED Triggers" source "drivers/leds/trigger/Kconfig" |