diff mbox series

[v2] usb: cdns3: imx: simplify system pm using _force_suspend/_resume

Message ID 20240726150731.297443-1-shenwei.wang@nxp.com (mailing list archive)
State New, archived
Headers show
Series [v2] usb: cdns3: imx: simplify system pm using _force_suspend/_resume | expand

Commit Message

Shenwei Wang July 26, 2024, 3:07 p.m. UTC
By utilizing _force_suspend and _force_resume, ensures a more consistent
and simple approach to handling system sleep states. It also aligns the
driver's PM behavior with the other drivers' common practices.

Fixes: db3c4e366287 ("usb: cdns3: imx: Rework system PM to avoid duplicated operations")
Reviewed-by: Frank Li <frank.li@nxp.com>
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
---
Changes in V2:
- revert the unneeded change of removing an extra blank line.

 drivers/usb/cdns3/cdns3-imx.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

--
2.34.1

Comments

Greg Kroah-Hartman July 27, 2024, 5:22 a.m. UTC | #1
On Fri, Jul 26, 2024 at 10:07:31AM -0500, Shenwei Wang wrote:
> By utilizing _force_suspend and _force_resume, ensures a more consistent
> and simple approach to handling system sleep states. It also aligns the
> driver's PM behavior with the other drivers' common practices.
> 
> Fixes: db3c4e366287 ("usb: cdns3: imx: Rework system PM to avoid duplicated operations")
> Reviewed-by: Frank Li <frank.li@nxp.com>
> Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
> ---
> Changes in V2:
> - revert the unneeded change of removing an extra blank line.
> 
>  drivers/usb/cdns3/cdns3-imx.c | 17 +++++++----------
>  1 file changed, 7 insertions(+), 10 deletions(-)
> 

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created.  Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
as indicated below:

- You have marked a patch with a "Fixes:" tag for a commit that is in an
  older released kernel, yet you do not have a cc: stable line in the
  signed-off-by area at all, which means that the patch will not be
  applied to any older kernel releases.  To properly fix this, please
  follow the documented rules in the
  Documentation/process/stable-kernel-rules.rst file for how to resolve
  this.

If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.

thanks,

greg k-h's patch email bot
Greg Kroah-Hartman July 31, 2024, 8:20 a.m. UTC | #2
On Fri, Jul 26, 2024 at 10:07:31AM -0500, Shenwei Wang wrote:
> By utilizing _force_suspend and _force_resume, ensures a more consistent
> and simple approach to handling system sleep states. It also aligns the
> driver's PM behavior with the other drivers' common practices.
> 
> Fixes: db3c4e366287 ("usb: cdns3: imx: Rework system PM to avoid duplicated operations")

This is not really a "fix" but rather a cleanup, right?  Please don't
add Fix tags that are not actually fixing things.

thanks,

greg k-h
diff mbox series

Patch

diff --git a/drivers/usb/cdns3/cdns3-imx.c b/drivers/usb/cdns3/cdns3-imx.c
index 281de47e2a3b..bb9b435c61b4 100644
--- a/drivers/usb/cdns3/cdns3-imx.c
+++ b/drivers/usb/cdns3/cdns3-imx.c
@@ -373,22 +373,18 @@  static inline bool cdns_imx_is_power_lost(struct cdns_imx *data)
 		return false;
 }

-static int __maybe_unused cdns_imx_system_suspend(struct device *dev)
-{
-	pm_runtime_put_sync(dev);
-	return 0;
-}
-
 static int __maybe_unused cdns_imx_system_resume(struct device *dev)
 {
 	struct cdns_imx *data = dev_get_drvdata(dev);
 	int ret;

+	ret = pm_runtime_force_resume(dev);
+	if (ret)
+		return ret;
+
 	ret = pm_runtime_resume_and_get(dev);
-	if (ret < 0) {
-		dev_err(dev, "Could not get runtime PM.\n");
+	if (ret)
 		return ret;
-	}

 	if (cdns_imx_is_power_lost(data)) {
 		dev_dbg(dev, "resume from power lost\n");
@@ -397,6 +393,7 @@  static int __maybe_unused cdns_imx_system_resume(struct device *dev)
 			cdns_imx_suspend(dev);
 	}

+	pm_runtime_put_autosuspend(dev);
 	return ret;
 }

@@ -411,7 +408,7 @@  static int cdns_imx_platform_suspend(struct device *dev,

 static const struct dev_pm_ops cdns_imx_pm_ops = {
 	SET_RUNTIME_PM_OPS(cdns_imx_suspend, cdns_imx_resume, NULL)
-	SET_SYSTEM_SLEEP_PM_OPS(cdns_imx_system_suspend, cdns_imx_system_resume)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, cdns_imx_system_resume)
 };

 static const struct of_device_id cdns_imx_of_match[] = {