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SubjectRe: [PATCH] PM: kill dev_pm_ops platform warning for now
On Friday 07 August 2009, Magnus Damm wrote:
> From: Magnus Damm <>
> Remove the platform device runtime dev_pm_ops warning
> for now. No point in upsetting users of non-rc kernels.
> Signed-off-by: Magnus Damm <>

Thanks for the patch, I modified the changelog a bit.

Greg, do you agree with the patch below?


From: Magnus Damm <>
Subject: PM / Driver Core: Kill dev_pm_ops platform warning for now

Commit 783ea7d4eeefe895f2731fe73ac951e94418927b
(Driver Core: Rework platform suspend/resume, print warning)
added a warning message printed for platform drivers that use the
legacy PM callbacks rather than struct dev_pm_ops. Unfortunately,
this resulted in some confusion and made some people try to convert
drivers by replacing the old callbacks with struct dev_pm_ops in
automatic way, which generally is not a good idea.

Remove the platform device runtime dev_pm_ops warning for now,
because it's annoying to users and it's not really necessary right

[rjw: Modified the changelog to be more informative.]

Signed-off-by: Magnus Damm <>
Signed-off-by: Rafael J. Wysocki <>
drivers/base/platform.c | 3 ---
1 file changed, 3 deletions(-)

Index: linux-2.6/drivers/base/platform.c
--- linux-2.6.orig/drivers/base/platform.c
+++ linux-2.6/drivers/base/platform.c
@@ -483,9 +483,6 @@ int platform_driver_register(struct plat
drv->driver.remove = platform_drv_remove;
if (drv->shutdown)
drv->driver.shutdown = platform_drv_shutdown;
- if (drv->suspend || drv->resume)
- pr_warning("Platform driver '%s' needs updating - please use "
- "dev_pm_ops\n", drv->;

return driver_register(&drv->driver);

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