From 1d7750760b70ba8b0e641146eee1b3a343d1b292 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Sat, 6 Mar 2021 14:40:40 +0900 Subject: 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 Signed-off-by: Marc Kleine-Budde --- include/linux/can/bittiming.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux/can/bittiming.h') diff --git a/include/linux/can/bittiming.h b/include/linux/can/bittiming.h index 3c4cad7b52c0..ae7a3411167c 100644 --- a/include/linux/can/bittiming.h +++ b/include/linux/can/bittiming.h @@ -11,6 +11,14 @@ #define CAN_SYNC_SEG 1 + +/* Kilobits and Megabits per second */ +#define CAN_KBPS 1000UL +#define CAN_MBPS 1000000UL + +/* Megahertz */ +#define CAN_MHZ 1000000UL + /* * struct can_tdc - CAN FD Transmission Delay Compensation parameters * -- cgit v1.2.3