1 files changed, 12 insertions, 4 deletions

diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index 3241dc4e1fc..3c44fbc81ac 100644
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -75,6 +75,13 @@ static size_t config_rom_length = 1 + 4 + 1 + 1;
 #define BIB_IRMC                ((1) << 31)
 #define NODE_CAPABILITIES       0x0c0083c0 /* per IEEE 1394 clause 8.3.2.6.5.2 */
 
+/*
+ * IEEE-1394 specifies a default SPLIT_TIMEOUT value of 800 cycles (100 ms),
+ * but we have to make it longer because there are many devices whose firmware
+ * is just too slow for that.
+ */
+#define DEFAULT_SPLIT_TIMEOUT   (2 * 8000)
+
 #define CANON_OUI               0x000085
 
 static void generate_config_rom(struct fw_card *card, __be32 *config_rom)
@@ -512,10 +519,11 @@ void fw_card_initialize(struct fw_card *card,
         card->device = device;
         card->current_tlabel = 0;
         card->tlabel_mask = 0;
-        card->split_timeout_hi = 0;
-        card->split_timeout_lo = 800 << 19;
-        card->split_timeout_cycles = 800;
-        card->split_timeout_jiffies = DIV_ROUND_UP(HZ, 10);
+        card->split_timeout_hi = DEFAULT_SPLIT_TIMEOUT / 8000;
+        card->split_timeout_lo = (DEFAULT_SPLIT_TIMEOUT % 8000) << 19;
+        card->split_timeout_cycles = DEFAULT_SPLIT_TIMEOUT;
+        card->split_timeout_jiffies =
+                        DIV_ROUND_UP(DEFAULT_SPLIT_TIMEOUT * HZ, 8000);
         card->color = 0;
         card->broadcast_channel = BROADCAST_CHANNEL_INITIAL;