mtd: implement support for LED activity

Implement support for LED activity. If the feature is enabled,
make the defined ACTIVITY LED to signal mtd operations.

LED activity is implemented HERE and not in the subsystem side to limit
any performance degradation in case multiple call to MTD subsystem read/write
are done.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/cmd/mtd.c b/cmd/mtd.c
index 795aaa2..f178d7b 100644 (file)
--- a/cmd/mtd.c
+++ b/cmd/mtd.c
@@ -10,6 +10,7 @@
 
 #include <command.h>
 #include <console.h>
+#include <led.h>
 #if CONFIG_IS_ENABLED(CMD_MTD_OTP)
 #include <hexdump.h>
 #endif
@@ -558,6 +559,8 @@ static int do_mtd_io(struct cmd_tbl *cmdtp, int flag, int argc,
        while (mtd_block_isbad(mtd, off))
                off += mtd->erasesize;
 
+       led_activity_blink();
+
        /* Loop over the pages to do the actual read/write */
        while (remaining) {
                /* Skip the block if it is bad */
@@ -585,6 +588,8 @@ static int do_mtd_io(struct cmd_tbl *cmdtp, int flag, int argc,
                io_op.oobbuf += io_op.oobretlen;
        }
 
+       led_activity_off();
+
        if (!ret && dump)
                mtd_dump_device_buf(mtd, start_off, buf, len, woob);
 
@@ -652,6 +657,8 @@ static int do_mtd_erase(struct cmd_tbl *cmdtp, int flag, int argc,
        erase_op.addr = off;
        erase_op.len = mtd->erasesize;
 
+       led_activity_blink();
+
        while (len) {
                if (!scrub) {
                        ret = mtd_block_isbad(mtd, erase_op.addr);
@@ -680,6 +687,8 @@ static int do_mtd_erase(struct cmd_tbl *cmdtp, int flag, int argc,
                erase_op.addr += mtd->erasesize;
        }
 
+       led_activity_off();
+
        if (ret && ret != -EIO)
                ret = CMD_RET_FAILURE;
        else