diff options
| author | Sean Nyekjaer <sean@geanix.com> | 2024-11-22 15:52:24 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2025-01-10 11:05:44 +0100 |
| commit | ad1ddb3bfb0c9193eb19d4788192904350c7e51a (patch) | |
| tree | b00f1ec55c13565da2c0253411dab452033477ec /drivers/net/can/m_can | |
| parent | a1366314703a93ef6a4538790cc3a5f6538c9e22 (diff) | |
can: m_can: call deinit/init callback when going into suspend/resume
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>
Link: https://patch.msgid.link/20241122-tcan-standby-v3-3-90bafaf5eccd@geanix.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/m_can')
| -rw-r--r-- | drivers/net/can/m_can/m_can.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index e31ce973892a..777dfb23c6fa 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -2444,6 +2444,7 @@ int m_can_class_suspend(struct device *dev) { struct m_can_classdev *cdev = dev_get_drvdata(dev); struct net_device *ndev = cdev->net; + int ret = 0; if (netif_running(ndev)) { netif_stop_queue(ndev); @@ -2456,6 +2457,9 @@ 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) + ret = cdev->ops->deinit(cdev); } else { m_can_stop(ndev); } @@ -2467,7 +2471,7 @@ int m_can_class_suspend(struct device *dev) cdev->can.state = CAN_STATE_SLEEPING; - return 0; + return ret; } EXPORT_SYMBOL_GPL(m_can_class_suspend); @@ -2475,14 +2479,13 @@ int m_can_class_resume(struct device *dev) { struct m_can_classdev *cdev = dev_get_drvdata(dev); struct net_device *ndev = cdev->net; + int ret = 0; pinctrl_pm_select_default_state(dev); cdev->can.state = CAN_STATE_ERROR_ACTIVE; if (netif_running(ndev)) { - int ret; - ret = m_can_clk_start(cdev); if (ret) return ret; @@ -2495,6 +2498,10 @@ int m_can_class_resume(struct device *dev) * again. */ cdev->active_interrupts |= IR_RF0N | IR_TEFN; + + if (cdev->ops->init) + ret = cdev->ops->init(cdev); + m_can_write(cdev, M_CAN_IE, cdev->active_interrupts); } else { ret = m_can_start(ndev); @@ -2508,7 +2515,7 @@ int m_can_class_resume(struct device *dev) netif_start_queue(ndev); } - return 0; + return ret; } EXPORT_SYMBOL_GPL(m_can_class_resume); |