From: Brennan Ashton <bashton@brennanashton.com>
Date: Sat, 26 Oct 2013 17:26:03 +0000 (-0700)
Subject: can-calc-bit-timing: fix MCP251x bit rate calculation
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/can-utils.git/commitdiff_plain/31936b5a173dfe1d0ba0e71859e37cbc42d5bad8?ds=sidebyside

can-calc-bit-timing: fix MCP251x bit rate calculation

This patch adds the missing -1 to "bt->brp", as correctly used in the kernel
driver.

Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---

diff --git a/can-calc-bit-timing.c b/can-calc-bit-timing.c
index ecf5cb6..ba50cdc 100644
--- a/can-calc-bit-timing.c
+++ b/can-calc-bit-timing.c
@@ -192,7 +192,7 @@ static void printf_btr_mcp251x(struct can_bittiming *bt, int hdr)
 	if (hdr) {
 		printf("CNF1 CNF2 CNF3");
 	} else {
-		cnf1 = ((bt->sjw - 1) << 6) | bt->brp;
+		cnf1 = ((bt->sjw - 1) << 6) | (bt->brp - 1);
 		cnf2 = 0x80 | ((bt->phase_seg1 - 1) << 3) | (bt->prop_seg - 1);
 		cnf3 = bt->phase_seg2 - 1;
 		printf("0x%02x 0x%02x 0x%02x", cnf1, cnf2, cnf3);