Make sure to apply the correct pin state in suspend/resume callbacks.
Putting pins in sleep state saves power.

Signed-off-by: Bich Hemon <redacted>
---
  drivers/net/can/m_can/m_can.c | 4 ++++
  1 file changed, 4 insertions(+)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 2594f77..a86ef69 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c

@@ -1700,6 +1700,8 @@ static __maybe_unused int m_can_suspend(struct device *dev)
  		m_can_clk_stop(priv);
  	}
  
+	pinctrl_pm_select_sleep_state(dev);
+
  	priv->can.state = CAN_STATE_SLEEPING;
  
  	return 0;

@@ -1710,6 +1712,8 @@ static __maybe_unused int m_can_resume(struct device *dev)
  	struct net_device *ndev = dev_get_drvdata(dev);
  	struct m_can_priv *priv = netdev_priv(ndev);
  
+	pinctrl_pm_select_default_state(dev);
+
  	m_can_init_ram(priv);
  
  	priv->can.state = CAN_STATE_ERROR_ACTIVE;