firewire: core: add CSR RESET_START support

This implements the RESET_START register (as a dummy) to make the Base
1394 Test Suite happy.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index 16ffa27d23b7..0034229dfd14 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -1034,6 +1034,11 @@ static void handle_registers(struct fw_card *card, struct fw_request *request,
                         rcode = RCODE_TYPE_ERROR;
                 break;
 
+        case CSR_RESET_START:
+                if (tcode != TCODE_WRITE_QUADLET_REQUEST)
+                        rcode = RCODE_TYPE_ERROR;
+                break;
+
         case CSR_CYCLE_TIME:
                 if (TCODE_IS_READ_REQUEST(tcode) && length == 4)
                         *data = cpu_to_be32(card->driver->