From: Adrian Fiergolski <adrian.fiergolski@fastree3d.com>
Date: Tue, 11 Jan 2022 18:05:30 +0000 (+0100)
Subject: misc: atsha204a: add delay after sending the message
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=e4662716fbbe4ce717cbf9f193564943ffe355f8;p=u-boot.git

misc: atsha204a: add delay after sending the message

Once request is sent, and before receiving a response, the delay is required.
This patch fixes missing delay for before first response try.

Signed-off-by: Adrian Fiergolski <adrian.fiergolski@fastree3d.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
---

diff --git a/drivers/misc/atsha204a-i2c.c b/drivers/misc/atsha204a-i2c.c
index 9d069fb33c..d264477927 100644
--- a/drivers/misc/atsha204a-i2c.c
+++ b/drivers/misc/atsha204a-i2c.c
@@ -280,6 +280,7 @@ static int atsha204a_transaction(struct udevice *dev, struct atsha204a_req *req,
 	}
 
 	do {
+		udelay(ATSHA204A_EXECTIME);
 		res = atsha204a_recv_resp(dev, resp);
 		if (!res || res == -EMSGSIZE || res == -EBADMSG)
 			break;
@@ -287,7 +288,6 @@ static int atsha204a_transaction(struct udevice *dev, struct atsha204a_req *req,
 		debug("ATSHA204A transaction polling for response "
 		      "(timeout = %d)\n", timeout);
 
-		udelay(ATSHA204A_EXECTIME);
 		timeout -= ATSHA204A_EXECTIME;
 	} while (timeout > 0);