can: c_can: C_CAN: add bus recovery events
While the state is updated when the error counters increase and decrease, there is no event when the bus recovers and the error counters decrease again. So add that event as well. Change the state going downward to be ERROR_PASSIVE -> ERROR_WARNING -> ERROR_ACTIVE instead of directly to ERROR_ACTIVE again. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Acked-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Tested-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
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