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| author | Haibo Chen <haibo.chen@nxp.com> | 2022-12-13 10:43:51 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2022-12-19 16:08:27 +0100 |
| commit | 3bc2afcba81275306adfbfca83f38a52858c5940 (patch) | |
| tree | 0156d9c7d6b3ae8c7c88c760cab04218b063353c | |
| parent | Documentation: devlink: add missing toc entry for etas_es58x devlink doc (diff) | |
| download | linux-3bc2afcba81275306adfbfca83f38a52858c5940.tar.xz linux-3bc2afcba81275306adfbfca83f38a52858c5940.zip | |
can: flexcan: avoid unbalanced pm_runtime_enable warning
When do suspend/resume, meet the following warning message:
[ 30.028336] flexcan 425b0000.can: Unbalanced pm_runtime_enable!
Balance the pm_runtime_force_suspend() and pm_runtime_force_resume().
Fixes: 8cb53b485f18 ("can: flexcan: add auto stop mode for IMX93 to support wakeup")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/all/20221213094351.3023858-1-haibo.chen@nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| -rw-r--r-- | drivers/net/can/flexcan/flexcan-core.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c index 0aeff34e5ae1..6d638c93977b 100644 --- a/drivers/net/can/flexcan/flexcan-core.c +++ b/drivers/net/can/flexcan/flexcan-core.c @@ -2349,9 +2349,15 @@ static int __maybe_unused flexcan_noirq_resume(struct device *device) if (netif_running(dev)) { int err; - err = pm_runtime_force_resume(device); - if (err) - return err; + /* For the wakeup in auto stop mode, no need to gate on the + * clock here, hardware will do this automatically. + */ + if (!(device_may_wakeup(device) && + priv->devtype_data.quirks & FLEXCAN_QUIRK_AUTO_STOP_MODE)) { + err = pm_runtime_force_resume(device); + if (err) + return err; + } if (device_may_wakeup(device)) flexcan_enable_wakeup_irq(priv, false); |