can: flexcan: add auto stop mode for IMX93 to support wakeup

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IMX93 do not contain a GPR to config the stop mode, it will set
the flexcan into stop mode automatically once the ARM core go
into low power mode (WFI instruct) and gate off the flexcan
related clock automatically. But to let these logic work as
expect, before ARM core go into low power mode, need to make
sure the flexcan related clock keep on.

To support stop mode and wakeup feature on imx93, this patch
add a new fsl_imx93_devtype_data to separate from imx8mp.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/all/1669116752-4260-1-git-send-email-haibo.chen@nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

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Haibo Chen 2022-11-22 19:32:30 +08:00 • committed by Marc Kleine-Budde

parent 8fd9323ef7

commit 8cb53b485f

2 changed files with 36 additions and 3 deletions

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37

drivers/net/can/flexcan/flexcan-core.c

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2

drivers/net/can/flexcan/flexcan.h

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