提交 7ffd7b4e 编写于 作者: V Viktor Babrian 提交者: Marc Kleine-Budde

can: c_can: end pending transmission on network stop (ifdown)

Put controller into init mode in network stop to end pending transmissions. The
issue is observed in cases when transmitted frame is not acked.
Signed-off-by: NViktor Babrian <babrian.viktor@renyi.mta.hu>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
上级 06efe0e5
......@@ -615,6 +615,9 @@ static void c_can_stop(struct net_device *dev)
c_can_irq_control(priv, false);
/* put ctrl to init on stop to end ongoing transmission */
priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_INIT);
/* deactivate pins */
pinctrl_pm_select_sleep_state(dev->dev.parent);
priv->can.state = CAN_STATE_STOPPED;
......
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