[PATCH 1/3] can: m_can: add deinit callback

[Sean Nyekjaer]

This is added in preparation for calling standby mode in the tcan4x5x
driver or other users of m_can.
For the tcan4x5x; If Vsup is 12V, standby mode will save 7-8mA, when
the interface is down.

Signed-off-by: Sean Nyekjaer <sean@xxxxxxxxxx>
---
 drivers/net/can/m_can/m_can.c | 3 +++
 drivers/net/can/m_can/m_can.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index a7b3bc439ae596527493a73d62b4b7a120ae4e49..a171ff860b7c6992846ae8d615640a40b623e0cb 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -1756,6 +1756,9 @@ static void m_can_stop(struct net_device *dev)
 
 	/* set the state as STOPPED */
 	cdev->can.state = CAN_STATE_STOPPED;
+
+	if (cdev->ops->deinit)
+		cdev->ops->deinit(cdev);
 }
 
 static int m_can_close(struct net_device *dev)
diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h
index 92b2bd8628e6b31370f4accbc2e28f3b2257a71d..6206535341a22a68d7c5570f619e6c4d05e6fcf4 100644
--- a/drivers/net/can/m_can/m_can.h
+++ b/drivers/net/can/m_can/m_can.h
@@ -68,6 +68,7 @@ struct m_can_ops {
 	int (*write_fifo)(struct m_can_classdev *cdev, int addr_offset,
 			  const void *val, size_t val_count);
 	int (*init)(struct m_can_classdev *cdev);
+	int (*deinit)(struct m_can_classdev *cdev);
 };
 
 struct m_can_tx_op {

-- 
2.46.2