leds: trigger: Introduce a MTD (NAND/NOR) trigger

This commit introduces a MTD trigger for flash (NAND/NOR) device
activity. The implementation is copied from IDE disk.

This trigger deprecates the "nand-disk" LED trigger, but for backwards
compatibility, we still keep the "nand-disk" trigger around.

The motivation for deprecating the "nand-disk" LED trigger is that
it only works for NAND drivers, whereas the "mtd" LED trigger
is more generic (in fact, "nand-disk" currently only works for
certain NAND drivers).

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/leds/trigger/Kconfig b/drivers/leds/trigger/Kconfig
index 554f5bfbeced..beac8c31c51b 100644
--- a/drivers/leds/trigger/Kconfig
+++ b/drivers/leds/trigger/Kconfig
@@ -41,6 +41,14 @@ config LEDS_TRIGGER_IDE_DISK
           This allows LEDs to be controlled by IDE disk activity.
           If unsure, say Y.
 
+config LEDS_TRIGGER_MTD
+        bool "LED MTD (NAND/NOR) Trigger"
+        depends on MTD
+        depends on LEDS_TRIGGERS
+        help
+          This allows LEDs to be controlled by MTD activity.
+          If unsure, say N.
+
 config LEDS_TRIGGER_HEARTBEAT
         tristate "LED Heartbeat Trigger"
         depends on LEDS_TRIGGERS