aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/leds/leds-mlxreg.c (follow)
AgeCommit message (Collapse)AuthorFilesLines
2019-11-03leds: mlxreg: Fix possible buffer overflowOleh Kravchenko1-2/+2
Error was detected by PVS-Studio: V512 A call of the 'sprintf' function will lead to overflow of the buffer 'led_data->led_cdev_name'. Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2019-02-23leds: mlxreg: Add support for capability registerVadim Pasternak1-0/+19
Add support for capability register in order to distinct between the systems with minor LED configuration differences. It reduces the amount of code describing systems' LED configuration. For example one system can be equipped with six LED, while the other with only four. Reading this information from the capability registers allows to use the same LED structure for such systems and set the relevant configuration dynamically based on capability register content. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-02-19leds: add driver for support Mellanox regmap LEDs for BMC and x86 platformVadim Pasternak1-0/+281
Driver obtains LED devices according to system configuration and creates devices in form: "devicename:color:function", like The full path is to be: /sys/class/leds/mlxreg\:status\:amber/brightness After timer trigger activation: echo timer > /sys/class/leds/mlxreg\:status\:amber/trigger Attributes for LED blinking will appaer in sysfs infrastructure: /sys/class/leds/mlxreg\:status\:amber/delay_off /sys/class/leds/mlxreg\:status\:amber/delay_on LED setting is controlled through the on-board programmable devices, which exports its register map. This device could be attached to any bus type, for which register mapping is supported. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>