This is added in preparation for calling standby mode in the tcan4x5x
driver or other users of m_can.
For the tcan4x5x; If Vsup 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 | 10 +++++++---
drivers/net/can/m_can/m_can.h | 1 +
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index a7b3bc439ae596527493a73d62b4b7a120ae4e49..667c70f8dc5e7e8b15b667119b63dea1fe667e8a 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -1750,12 +1750,16 @@ static void m_can_stop(struct net_device *dev)
/* Set init mode to disengage from the network */
ret = m_can_cccr_update_bits(cdev, CCCR_INIT, CCCR_INIT);
- if (ret)
- netdev_err(dev, "failed to enter standby mode: %pe\n",
- ERR_PTR(ret));
/* set the state as STOPPED */
cdev->can.state = CAN_STATE_STOPPED;
+
+ if (!ret && cdev->ops->deinit)
+ ret = cdev->ops->deinit(cdev);
+
+ if (ret)
+ netdev_err(dev, "failed to enter standby mode: %pe\n",
+ ERR_PTR(ret));
}
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
