can: m_can: is_lec_err(): clean up LEC error handling

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The PSR register contains among other the error for the CAN
arbitration phase (LEC bits) and CAN data phase (DLEC bits).

Prepare is_lec_err() to be called with the (D)LEC value only instead
of the whole PSR register. While there rename LEC_UNUSED to
LEC_NO_CHANGE to match the latest M_CAN reference manual.

Link: https://lore.kernel.org/all/20221019211611.1605764-1-mkl@pengutronix.de
Reviewed-by: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

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Marc Kleine-Budde 2022-10-12 09:38:42 +02:00

parent 26117d92d0

commit 6a8836e3c2

2 changed files with 9 additions and 8 deletions

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15

drivers/net/can/m_can/m_can.c

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2

drivers/net/can/m_can/m_can.h

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