netdev - [PATCH 1/3 v2] pch_can: fix 800k comms issue

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Message-Id: <1297295776-3735-1-git-send-email-tomoya-linux@dsn.okisemi.com>
Date:	Thu, 10 Feb 2011 08:56:16 +0900
From:	Tomoya MORINAGA <tomoya-linux@....okisemi.com>
To:	wg@...ndegger.com, socketcan-core@...ts.berlios.de,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	qi.wang@...el.com, yong.y.wang@...el.com,
	andrew.chih.howe.khor@...el.com, joel.clark@...el.com,
	kok.howg.ewe@...el.com, toshiharu-linux@....okisemi.com,
	Tomoya MORINAGA <tomoya-linux@....okisemi.com>
Subject: [PATCH 1/3 v2] pch_can: fix 800k comms issue

Previous patch "[PATCH 1/3] pch_can: fix 800k comms issue" is wrong.
I should have modified tseg1_min not tseg2_min.
Please discard previous patch and use this patch.

Currently, 800k comms fails since prop_seg set zero.
(EG20T PCH CAN register of prop_seg must be set more than 1)
To prevent prop_seg set to zero, change tseg2_min 1 to 2.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@....okisemi.com>
---
 drivers/net/can/pch_can.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c
index c42e972..0534eed 100644
--- a/drivers/net/can/pch_can.c
+++ b/drivers/net/can/pch_can.c
@@ -185,7 +185,7 @@ struct pch_can_priv {
 
 static struct can_bittiming_const pch_can_bittiming_const = {
 	.name = KBUILD_MODNAME,
-	.tseg1_min = 1,
+	.tseg1_min = 2,
 	.tseg1_max = 16,
 	.tseg2_min = 1,
 	.tseg2_max = 8,
-- 
1.7.3.4

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