linux-kernel - [PATCH 30/35] W1: ds2490.c ds_reset remove ds_wait

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Date:	Fri, 28 Mar 2008 07:27:38 -0500
From:	David Fries <david@...es.net>
To:	linux-kernel@...r.kernel.org
Cc:	Evgeniy Polyakov <johnpol@....mipt.ru>
Subject: [PATCH 30/35] W1: ds2490.c ds_reset remove ds_wait_status

ds_2490.c 1.16
ds_reset no longer calls ds_wait_status, the result wasn't used and it
would only delay the following data operations.

Signed-off-by: David Fries <david@...es.net>
---
 drivers/w1/masters/ds2490.c |   17 +++--------------
 1 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/w1/masters/ds2490.c b/drivers/w1/masters/ds2490.c
index 1e04ee4..1a87979 100644
--- a/drivers/w1/masters/ds2490.c
+++ b/drivers/w1/masters/ds2490.c
@@ -456,23 +456,15 @@ static int ds_wait_status(struct ds_device *dev, struct ds_status *st)
 		return 0;
 }
 
-static int ds_reset(struct ds_device *dev, struct ds_status *st)
+static int ds_reset(struct ds_device *dev)
 {
 	int err;
 
-	//err = ds_send_control(dev, COMM_1_WIRE_RESET | COMM_F | COMM_IM | COMM_SE, SPEED_FLEXIBLE);
+	/*err = ds_send_control(dev, COMM_1_WIRE_RESET | COMM_F | COMM_IM | COMM_SE, SPEED_FLEXIBLE); */
 	err = ds_send_control(dev, 0x43, SPEED_NORMAL);
 	if (err)
 		return err;
 
-	ds_wait_status(dev, st);
-#if 0
-	if (st->command_buffer_status) {
-		printk(KERN_INFO "Short circuit.\n");
-		return -EIO;
-	}
-#endif
-
 	return 0;
 }
 
@@ -808,12 +800,9 @@ static u8 ds9490r_read_block(void *data, u8 *buf, int len)
 static u8 ds9490r_reset(void *data)
 {
 	struct ds_device *dev = data;
-	struct ds_status st;
 	int err;
 
-	memset(&st, 0, sizeof(st));
-
-	err = ds_reset(dev, &st);
+	err = ds_reset(dev);
 	if (err)
 		return 1;
 
-- 
1.4.4.4

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