[U-Boot] [PATCH] w1: fix occasional enumeration failure

[Martin Fuzzey]

Sometimes enumeration fails (about 1 in 50 times on my custom board).

The underlying reason is probably electrical but Linux does not have
the problem.

Comparing the Linux / u-boot implementations shows that Linux
retries the error case whereas u-boot aborts early.

Removing the early abort in u-boot fixes the problem.

Signed-off-by: Martin Fuzzey <martin.fuzzey at flowbird.group>
---
 drivers/w1/w1-uclass.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/w1/w1-uclass.c b/drivers/w1/w1-uclass.c
index 5544b19..ad86bf6 100644
--- a/drivers/w1/w1-uclass.c
+++ b/drivers/w1/w1-uclass.c
@@ -84,10 +84,6 @@ static int w1_enumerate(struct udevice *bus)
 			rn |= (tmp64 << i);
 		}
 
-		/* last device or error, aborting here */
-		if ((triplet_ret & 0x03) == 0x03)
-			last_device = true;
-
 		if ((triplet_ret & 0x03) != 0x03) {
 			if (desc_bit == last_zero || last_zero < 0) {
 				last_device = 1;
-- 
1.9.1