can: c_can: Add d_can suspend resume support
Adds suspend resume support to DCAN driver which enables DCAN power down mode bit (PDR). Then DCAN will ack the local power-down mode by setting PDA bit in STATUS register. Signed-off-by: NAnilKumar Ch <anilkumar@ti.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
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