| Message ID | 20231122005457.330066-3-mailingradian@gmail.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Headers | show |
| Series | fbdev/simplefb: Suppress error on missing power domains | expand |
Hi, On 11/22/23 01:54, Richard Acayan wrote: > When the power domains are missing, the call to of_count_phandle_with_args > fails with -ENOENT. The power domains are not required and there are > some device trees that do not specify them. Suppress this error to fix > devices without power domains attached to simplefb. > > Fixes: 92a511a568e4 ("fbdev/simplefb: Add support for generic power-domains") > Closes: https://lore.kernel.org/linux-fbdev/ZVwFNfkqjrvhFHM0@radian > Signed-off-by: Richard Acayan <mailingradian@gmail.com> Thank you for the patch. I've pushed this to drm-misc-next now. Regards, Hans > --- > drivers/video/fbdev/simplefb.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c > index fe682af63827..6f58ee276ad1 100644 > --- a/drivers/video/fbdev/simplefb.c > +++ b/drivers/video/fbdev/simplefb.c > @@ -466,6 +466,10 @@ static int simplefb_attach_genpds(struct simplefb_par *par, > err = of_count_phandle_with_args(dev->of_node, "power-domains", > "#power-domain-cells"); > if (err < 0) { > + /* Nothing wrong if optional PDs are missing */ > + if (err == -ENOENT) > + return 0; > + > dev_info(dev, "failed to parse power-domains: %d\n", err); > return err; > }
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index fe682af63827..6f58ee276ad1 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -466,6 +466,10 @@ static int simplefb_attach_genpds(struct simplefb_par *par, err = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); if (err < 0) { + /* Nothing wrong if optional PDs are missing */ + if (err == -ENOENT) + return 0; + dev_info(dev, "failed to parse power-domains: %d\n", err); return err; }
When the power domains are missing, the call to of_count_phandle_with_args fails with -ENOENT. The power domains are not required and there are some device trees that do not specify them. Suppress this error to fix devices without power domains attached to simplefb. Fixes: 92a511a568e4 ("fbdev/simplefb: Add support for generic power-domains") Closes: https://lore.kernel.org/linux-fbdev/ZVwFNfkqjrvhFHM0@radian Signed-off-by: Richard Acayan <mailingradian@gmail.com> --- drivers/video/fbdev/simplefb.c | 4 ++++ 1 file changed, 4 insertions(+)