Fixes the following W=1 kernel build warning(s):
drivers/leds/leds-mlxreg.c:42: warning: Function parameter or member 'led_cdev' not described in 'mlxreg_led_data'
drivers/leds/leds-mlxreg.c:42: warning: Function parameter or member 'led_cdev_name' not described in 'mlxreg_led_data'
Cc: Vadim Pasternak <vadimp@nvidia.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-leds@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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>
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>
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>
Lee Jones