m_can user like the tcan4x5x device, can go into standby mode.
Low power RX mode is enabled to allow wake on can.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
---
 drivers/net/can/m_can/m_can.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index a171ff860b7c6992846ae8d615640a40b623e0cb..d9f820b5609ea3e8a98dc8a9f4d9948c09aa85c6 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -2451,6 +2451,9 @@ int m_can_class_suspend(struct device *dev)
 		if (cdev->pm_wake_source) {
 			hrtimer_cancel(&cdev->hrtimer);
 			m_can_write(cdev, M_CAN_IE, IR_RF0N);
+
+			if (cdev->ops->deinit)
+				cdev->ops->deinit(cdev);
 		} else {
 			m_can_stop(ndev);
 		}
@@ -2490,6 +2493,10 @@ int m_can_class_resume(struct device *dev)
 			 * again.
 			 */
 			cdev->active_interrupts |= IR_RF0N | IR_TEFN;
+
+			if (cdev->ops->init)
+				cdev->ops->init(cdev);
+
 			m_can_write(cdev, M_CAN_IE, cdev->active_interrupts);
 		} else {
 			ret  = m_can_start(ndev);

-- 
2.46.2