2023-08-03 14:09:53

by Eugen Hristev

[permalink] [raw]
Subject: Re: [PATCH v8 4/8] drm/mediatek: Add encoder_index function to mtk_ddp_comp_funcs

On 8/2/23 17:47, Jason-JH.Lin wrote:
> 1. Add encoder_index function to mtk_ddp_comp_funcs to support dynamic
> connector selection for some ddp_comp who has encoder_index.
> 2. Add mtk_ddp_comp_encoder_index_set function to set encoder_index to
> each comp.
>

Usually a commit that does two things in a list is supposed to be two
actual commits.


> Signed-off-by: Jason-JH.Lin <[email protected]>
> ---
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> index febcaeef16a1..8428baca70f4 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> @@ -80,6 +80,7 @@ struct mtk_ddp_comp_funcs {
> void (*disconnect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
> void (*add)(struct device *dev, struct mtk_mutex *mutex);
> void (*remove)(struct device *dev, struct mtk_mutex *mutex);
> + unsigned int (*encoder_index)(struct device *dev);
> };
>
> struct mtk_ddp_comp {
> @@ -87,6 +88,7 @@ struct mtk_ddp_comp {
> int irq;
> unsigned int id;
> const struct mtk_ddp_comp_funcs *funcs;
> + unsigned int encoder_index;

For better alignment I would suggest variables to be declared together
and pointers afterwards, not mixed up

> };
>
> static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp)
> @@ -275,6 +277,12 @@ static inline bool mtk_ddp_comp_disconnect(struct mtk_ddp_comp *comp, struct dev
> return false;
> }
>
> +static inline void mtk_ddp_comp_encoder_index_set(struct mtk_ddp_comp *comp)
> +{
> + if (comp->funcs && comp->funcs->encoder_index)
> + comp->encoder_index = comp->funcs->encoder_index(comp->dev);
> +}

it's also a bit strange that you added a function that is not used
anywhere. Don't you get like a compiler warning for it ?

> +
> int mtk_ddp_comp_get_id(struct device_node *node,
> enum mtk_ddp_comp_type comp_type);
> unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,



2023-08-05 09:32:53

by Jason-JH.Lin

[permalink] [raw]
Subject: Re: [PATCH v8 4/8] drm/mediatek: Add encoder_index function to mtk_ddp_comp_funcs

Hi Eugen,

Thanks for the reviews.

On Thu, 2023-08-03 at 16:27 +0300, Eugen Hristev wrote:
> On 8/2/23 17:47, Jason-JH.Lin wrote:
> > 1. Add encoder_index function to mtk_ddp_comp_funcs to support
> > dynamic
> > connector selection for some ddp_comp who has encoder_index.
> > 2. Add mtk_ddp_comp_encoder_index_set function to set encoder_index
> > to
> > each comp.
> >
>
> Usually a commit that does two things in a list is supposed to be
> two
> actual commits.
>
OK, I'll move the second part to [PATCH v8 6/8].

>
> > Signed-off-by: Jason-JH.Lin <[email protected]>
> > ---
> > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 8 ++++++++
> > 1 file changed, 8 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > index febcaeef16a1..8428baca70f4 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > @@ -80,6 +80,7 @@ struct mtk_ddp_comp_funcs {
> > void (*disconnect)(struct device *dev, struct device
> > *mmsys_dev, unsigned int next);
> > void (*add)(struct device *dev, struct mtk_mutex *mutex);
> > void (*remove)(struct device *dev, struct mtk_mutex *mutex);
> > + unsigned int (*encoder_index)(struct device *dev);
> > };
> >
> > struct mtk_ddp_comp {
> > @@ -87,6 +88,7 @@ struct mtk_ddp_comp {
> > int irq;
> > unsigned int id;
> > const struct mtk_ddp_comp_funcs *funcs;
> > + unsigned int encoder_index;
>
> For better alignment I would suggest variables to be declared
> together
> and pointers afterwards, not mixed up
>

OK, I'll move it between `unsigned int id` and `const struct
mtk_ddp_comp_funcs *funcs`.


> > };
> >
> > static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp
> > *comp)
> > @@ -275,6 +277,12 @@ static inline bool
> > mtk_ddp_comp_disconnect(struct mtk_ddp_comp *comp, struct dev
> > return false;
> > }
> >
> > +static inline void mtk_ddp_comp_encoder_index_set(struct
> > mtk_ddp_comp *comp)
> > +{
> > + if (comp->funcs && comp->funcs->encoder_index)
> > + comp->encoder_index = comp->funcs->encoder_index(comp-
> > >dev);
> > +}
>
> it's also a bit strange that you added a function that is not used
> anywhere. Don't you get like a compiler warning for it ?
>
Because it's used in mtk_drm_crtc_create() in [PATCH v8 6/8].
I'll move this part into [PATCH v8 6/8].

Regards,
Jason-JH.Lin

> > +
> > int mtk_ddp_comp_get_id(struct device_node *node,
> > enum mtk_ddp_comp_type comp_type);
> > unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device
> > *drm,
>
>