w1: added w1 reset command

Command which allows to reset the bus.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/w1/w1_netlink.c b/drivers/w1/w1_netlink.c
index a94336be7654..f978c7504004 100644
--- a/drivers/w1/w1_netlink.c
+++ b/drivers/w1/w1_netlink.c
@@ -197,6 +197,9 @@ static int w1_process_command_master(struct w1_master *dev, struct cn_msg *req_m
         case W1_CMD_TOUCH:
                 err = w1_process_command_io(dev, msg, hdr, cmd);
                 break;
+        case W1_CMD_RESET:
+                err = w1_reset_bus(dev);
+                break;
         default:
                 cmd->res = EINVAL;
                 cn_netlink_send(msg, 0, GFP_KERNEL);
diff --git a/drivers/w1/w1_netlink.h b/drivers/w1/w1_netlink.h
index 01d86a71cf32..68a4ff46cb96 100644
--- a/drivers/w1/w1_netlink.h
+++ b/drivers/w1/w1_netlink.h
@@ -58,6 +58,7 @@ enum w1_commands {
         W1_CMD_SEARCH,
         W1_CMD_ALARM_SEARCH,
         W1_CMD_TOUCH,
+        W1_CMD_RESET,
         W1_CMD_MAX,
 };