diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-03-02 17:58:18 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-03-30 12:14:50 +0300 |
| commit | efd8d98dfb900f96370cc7722ccb7959e58557c7 (patch) | |
| tree | 6ef8f9f08f4c3042b2c29179ecea7c37f1c7149b /drivers/net/can/spi/mcp251xfd/Makefile | |
| parent | dc09e7e37152d1d18511cd590980d3982a3a0daa (diff) | |
| download | linux-efd8d98dfb900f96370cc7722ccb7959e58557c7.tar.xz | |
can: mcp251xfd: add HW timestamp infrastructure
This patch add the HW timestamping infrastructure. The mcp251xfd has a
free running timer of 32 bit width, running at max 40MHz, which wraps
around every 107 seconds. The current timestamp is latched into RX and
TEF objects automatically be the CAN controller.
This patch sets up a cyclecounter, timecounter and delayed worker
infrastructure (which runs every 45 seconds) to convert the timer into
a proper 64 bit based ns timestamp.
Link: https://lore.kernel.org/r/20210304160328.2752293-6-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/spi/mcp251xfd/Makefile')
| -rw-r--r-- | drivers/net/can/spi/mcp251xfd/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/can/spi/mcp251xfd/Makefile b/drivers/net/can/spi/mcp251xfd/Makefile index e87e668a08a0..3cba3b9447ea 100644 --- a/drivers/net/can/spi/mcp251xfd/Makefile +++ b/drivers/net/can/spi/mcp251xfd/Makefile @@ -6,5 +6,6 @@ mcp251xfd-objs := mcp251xfd-objs += mcp251xfd-core.o mcp251xfd-objs += mcp251xfd-crc16.o mcp251xfd-objs += mcp251xfd-regmap.o +mcp251xfd-objs += mcp251xfd-timestamp.o mcp251xfd-$(CONFIG_DEV_COREDUMP) += mcp251xfd-dump.o |