[PATCH 1/2] drivers: base: component: add function to query the bound status

[Greg KH]

On Thu, Feb 27, 2025 at 09:44:23AM +0100, Heiko Stübner wrote:
> Hi Greg,
> 
> Am Freitag, 21. Februar 2025, 07:14:07 MEZ schrieb Greg KH:
> > On Fri, Feb 21, 2025 at 12:41:40AM +0100, Heiko Stuebner wrote:
> > > The component helpers already expose the bound status in debugfs, but at
> > > times it might be necessary to also check that state in the kernel and
> > > act differently depending on the result.
> > > 
> > > For example the shutdown handler of a drm-driver might need to stop
> > > a whole output pipeline if the drm device is up and running, but may
> > > run into problems if that drm-device has never been set up before,
> > > for example because the binding deferred.
> > > 
> > > So add a little helper that returns the bound status for a componet
> > > device.
> > > 
> > > Signed-off-by: Heiko Stuebner <heiko at sntech.de>
> > > ---
> > >  drivers/base/component.c  | 14 ++++++++++++++
> > >  include/linux/component.h |  4 +++-
> > >  2 files changed, 17 insertions(+), 1 deletion(-)
> > 
> > Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> 
> just for safety and not stepping on people's toes, does the Acked-by mean
> that this patch can go together with its user through the drm-misc tree?

Yup, merge away!