[PATCH RFC 2/2] drm/panel/panel-simple: Use the new allocation in place of devm_kzalloc()

[Anusha Srivatsa]

On Mon, Mar 17, 2025 at 6:12 AM Neil Armstrong <neil.armstrong at linaro.org>
wrote:

> On 13/03/2025 01:54, Anusha Srivatsa wrote:
> > Start using the new helper that does the refcounted
> > allocations.
> >
> > Signed-off-by: Anusha Srivatsa <asrivats at redhat.com>
> > ---
> >   drivers/gpu/drm/panel/panel-simple.c | 4 +---
> >   1 file changed, 1 insertion(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/panel/panel-simple.c
> b/drivers/gpu/drm/panel/panel-simple.c
> > index
> 232b03c1a259eb15e423b9d452d28e2ff95c70f8..d7530c3533af34f83ce8c6d6067e7f293f2d4bf1
> 100644
> > --- a/drivers/gpu/drm/panel/panel-simple.c
> > +++ b/drivers/gpu/drm/panel/panel-simple.c
> > @@ -579,7 +579,7 @@ static int panel_simple_probe(struct device *dev,
> const struct panel_desc *desc)
> >       u32 bus_flags;
> >       int err;
> >
> > -     panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
> > +     panel = devm_drm_panel_alloc(dev, struct panel_simple, base,
> &panel_simple_funcs);
> >       if (!panel)
> >               return -ENOMEM;
> >
> > @@ -694,8 +694,6 @@ static int panel_simple_probe(struct device *dev,
> const struct panel_desc *desc)
> >       pm_runtime_set_autosuspend_delay(dev, 1000);
> >       pm_runtime_use_autosuspend(dev);
> >
> > -     drm_panel_init(&panel->base, dev, &panel_simple_funcs,
> connector_type);
>
> As pointed by the helpers review, you're loosing the connector_type info
> here.
>
> Yes Niels, Looking into this. The conector type has to be passed from here
to the API...

Anusha

> > -
> >       err = drm_panel_of_backlight(&panel->base);
> >       if (err) {
> >               dev_err_probe(dev, err, "Could not find backlight\n");
> >
>
> Thanks !
> Neil
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20250317/3d0e455f/attachment.htm>