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authorVincent Mailhol <mailhol.vincent@wanadoo.fr>2021-03-06 08:40:40 +0300
committerMarc Kleine-Budde <mkl@pengutronix.de>2021-03-30 12:14:45 +0300
commit1d7750760b70ba8b0e641146eee1b3a343d1b292 (patch)
tree18a32fdd433f6d66cdfbb486426fc652777426ed /drivers/net/can/dev
parentc25cc7993243fdc00ab7e608e3764819538015ab (diff)
downloadlinux-1d7750760b70ba8b0e641146eee1b3a343d1b292.tar.xz
can: bittiming: add CAN_KBPS, CAN_MBPS and CAN_MHZ macros
Add three macro to simplify the readability of big bit timing numbers: - CAN_KBPS: kilobits per second (one thousand) - CAN_MBPS: megabits per second (one million) - CAN_MHZ: megahertz per second (one million) Example: u32 bitrate_max = 8 * CAN_MBPS; struct can_clock clock = {.freq = 80 * CAN_MHZ}; instead of: u32 bitrate_max = 8000000; struct can_clock clock = {.freq = 80000000}; Apply the new macro to driver/net/can/dev/bittiming.c. Link: https://lore.kernel.org/r/20210306054040.76483-1-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/dev')
-rw-r--r--drivers/net/can/dev/bittiming.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/can/dev/bittiming.c b/drivers/net/can/dev/bittiming.c
index 2907e60c9a57..f49170eadd54 100644
--- a/drivers/net/can/dev/bittiming.c
+++ b/drivers/net/can/dev/bittiming.c
@@ -81,9 +81,9 @@ int can_calc_bittiming(struct net_device *dev, struct can_bittiming *bt,
if (bt->sample_point) {
sample_point_nominal = bt->sample_point;
} else {
- if (bt->bitrate > 800000)
+ if (bt->bitrate > 800 * CAN_KBPS)
sample_point_nominal = 750;
- else if (bt->bitrate > 500000)
+ else if (bt->bitrate > 500 * CAN_KBPS)
sample_point_nominal = 800;
else
sample_point_nominal = 875;