public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* Re: [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection
       [not found] ` <20230509150737.8075-2-jason-jh.lin@mediatek.com>
@ 2023-05-18  9:29   ` AngeloGioacchino Del Regno
  2023-06-01 14:53     ` Jason-JH Lin (林睿祥)
  0 siblings, 1 reply; 3+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-05-18  9:29 UTC (permalink / raw)
  To: Jason-JH.Lin, Chun-Kuang Hu, Alexandre Mergnat
  Cc: Matthias Brugger, Rex-BC Chen, Jason-ch Chen, Johnson Wang,
	Singo Chang, Nancy Lin, Shawn Sung, dri-devel, linux-mediatek,
	linux-arm-kernel, linux-kernel,
	Project_Global_Chrome_Upstream_Group, Nathan Lu

Il 09/05/23 17:07, Jason-JH.Lin ha scritto:
> 1. Move output drm connector from each ddp_path array to connector array.
> 2. Add dynamic select available connector flow in crtc create and enable.
> 
> Signed-off-by: Nancy Lin <nancy.lin@mediatek.com>
> Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> ---
>   drivers/gpu/drm/mediatek/mtk_disp_drv.h     |   1 +
>   drivers/gpu/drm/mediatek/mtk_dpi.c          |   9 ++
>   drivers/gpu/drm/mediatek/mtk_drm_crtc.c     | 111 +++++++++++++++++++-
>   drivers/gpu/drm/mediatek/mtk_drm_crtc.h     |   5 +-
>   drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  27 +++++
>   drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |   8 ++
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c      |  44 ++++++--
>   drivers/gpu/drm/mediatek/mtk_drm_drv.h      |   8 ++
>   8 files changed, 202 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 2254038519e1..72c57442f965 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -44,6 +44,7 @@ void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg,
>   
>   void mtk_dpi_start(struct device *dev);
>   void mtk_dpi_stop(struct device *dev);
> +int mtk_dpi_encoder_index(struct device *dev);
>   
>   void mtk_dsi_ddp_start(struct device *dev);
>   void mtk_dsi_ddp_stop(struct device *dev);
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 948a53f1f4b3..765fc976e41f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -782,6 +782,15 @@ void mtk_dpi_stop(struct device *dev)
>   	mtk_dpi_power_off(dpi);
>   }
>   
> +int mtk_dpi_encoder_index(struct device *dev)
> +{
> +	struct mtk_dpi *dpi = dev_get_drvdata(dev);
> +	int encoder_index = drm_encoder_index(&dpi->encoder);
> +
> +	dev_dbg(dev, "encoder index:%d", encoder_index);
> +	return encoder_index;
> +}
> +
>   static int mtk_dpi_bind(struct device *dev, struct device *master, void *data)
>   {
>   	struct mtk_dpi *dpi = dev_get_drvdata(dev);
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index d40142842f85..54d48932b833 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -60,8 +60,12 @@ struct mtk_drm_crtc {
>   	struct device			*mmsys_dev;
>   	struct device			*dma_dev;
>   	struct mtk_mutex		*mutex;
> +	unsigned int			ddp_comp_nr_ori;
> +	unsigned int			max_ddp_comp_nr;
>   	unsigned int			ddp_comp_nr;
>   	struct mtk_ddp_comp		**ddp_comp;
> +	unsigned int			conn_route_nr;

`num_conn_routes` is clearer.

> +	const struct mtk_drm_route	*conn_routes;
>   
>   	/* lock for display hardware access */
>   	struct mutex			hw_lock;
> @@ -649,6 +653,84 @@ static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc)
>   	mtk_ddp_comp_disable_vblank(comp);
>   }
>   
> +static unsigned int mtk_drm_crtc_max_num_route_comp(struct mtk_drm_crtc *mtk_crtc)
> +{
> +	unsigned int max_num = 0;
> +	unsigned int i;
> +
> +	if (!mtk_crtc->conn_route_nr)
> +		return 0;
> +
> +	for (i = 0; i < mtk_crtc->conn_route_nr; i++)
> +		max_num = max(mtk_crtc->conn_routes[i].route_len, max_num);

If we rename this to `num_routes` or `max_routes` it becomes a bit more
understandable.

> +
> +	return max_num;
> +}
> +
> +static int mtk_drm_crtc_update_output(struct drm_crtc *crtc,
> +				      struct drm_atomic_state *state)
> +{
> +	const struct mtk_drm_route *conn_routes;
> +	int crtc_index = drm_crtc_index(crtc);
> +	int i;
> +	struct device *dev;
> +	struct drm_crtc_state *crtc_state = state->crtcs[crtc_index].new_state;
> +	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
> +	struct mtk_drm_private *priv = crtc->dev->dev_private;
> +	unsigned int comp_id;
> +	unsigned int encoder_mask = crtc_state->encoder_mask;
> +	unsigned int route_len = 0, route_index = 0;
> +
> +	if (!mtk_crtc->conn_route_nr)
> +		return 0;
> +
> +	priv = priv->all_drm_private[crtc_index];
> +	dev = priv->dev;
> +
> +	dev_dbg(dev, "connector change:%d, encoder mask0x%x for crtc%d",
> +		crtc_state->connectors_changed, encoder_mask, crtc_index);
> +
> +	if (!crtc_state->connectors_changed)
> +		return 0;
> +
> +	conn_routes = mtk_crtc->conn_routes;
> +
> +	for (i = 0; i < mtk_crtc->conn_route_nr; i++) {
> +		route_len = conn_routes[i].route_len;
> +		if (route_len > 0) {

route_len is unsigned, it can never be < 0, so...

		if (route_len) {

> +			comp_id = conn_routes[i].route_ddp[route_len - 1];
> +			if (priv->comp_node[comp_id]) {
> +				if ((1 << priv->ddp_comp[comp_id].encoder_index) == encoder_mask) {

This is effectively BIT().

if (encoder_mask == BIT(priv->ddp_comp[comp_id].encoder_index)) {

P.S.: Are you sure that this shouldn't be (encoder_mask & BIT(encoder_index))??

> +					route_index = i;
> +					break;
> +				}
> +			}
> +		}
> +	}
> +

..snip..

> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> index 3e9046993d09..672b9c7afee6 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> @@ -8,6 +8,7 @@
>   
>   #include <drm/drm_crtc.h>
>   #include "mtk_drm_ddp_comp.h"
> +#include "mtk_drm_drv.h"
>   #include "mtk_drm_plane.h"
>   
>   #define MTK_LUT_SIZE	512
> @@ -18,7 +19,9 @@ void mtk_drm_crtc_commit(struct drm_crtc *crtc);
>   int mtk_drm_crtc_create(struct drm_device *drm_dev,
>   			const unsigned int *path,
>   			unsigned int path_len,
> -			int priv_data_index);
> +			int priv_data_index,
> +			const struct mtk_drm_route *conn_routes,
> +			unsigned int conn_routes_num);

num_conn_routes looks better.

>   int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane,
>   			     struct mtk_plane_state *state);
>   void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane,
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index f114da4d36a9..fe20ce26b19f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c

..snip..

> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> index febcaeef16a1..1c1d670cfe41 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);
> +	int (*encoder_index)(struct device *dev);

drm_encoder_index returns an unsigned int type, so this one can never be negative:
please change the return value of this function to unsigned int type.

>   };
>   
>   struct mtk_ddp_comp {
> @@ -87,6 +88,7 @@ struct mtk_ddp_comp {
>   	int irq;
>   	unsigned int id;
>   	const struct mtk_ddp_comp_funcs *funcs;
> +	int encoder_index;

Same here, unsigned int.

>   };
>   
>   static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp)

Regards,
Angelo


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0
       [not found] ` <20230509150737.8075-3-jason-jh.lin@mediatek.com>
@ 2023-05-18  9:30   ` AngeloGioacchino Del Regno
  0 siblings, 0 replies; 3+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-05-18  9:30 UTC (permalink / raw)
  To: Jason-JH.Lin, Chun-Kuang Hu, Alexandre Mergnat
  Cc: Matthias Brugger, Rex-BC Chen, Jason-ch Chen, Johnson Wang,
	Singo Chang, Nancy Lin, Shawn Sung, dri-devel, linux-mediatek,
	linux-arm-kernel, linux-kernel,
	Project_Global_Chrome_Upstream_Group, Nathan Lu

Il 09/05/23 17:07, Jason-JH.Lin ha scritto:
> Add DSI as main display output for mt8188 vdosys0.
> 
> Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
> ---
>   drivers/gpu/drm/mediatek/mtk_disp_drv.h     | 1 +
>   drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 +
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c      | 5 +++++
>   drivers/gpu/drm/mediatek/mtk_dsi.c          | 9 +++++++++
>   4 files changed, 16 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 72c57442f965..bf06ccb65652 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -48,6 +48,7 @@ int mtk_dpi_encoder_index(struct device *dev);
>   
>   void mtk_dsi_ddp_start(struct device *dev);
>   void mtk_dsi_ddp_stop(struct device *dev);
> +int mtk_dsi_encoder_index(struct device *dev);

unsigned int mtk_dsi_encoder_index(...)

Regards,
Angelo



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection
  2023-05-18  9:29   ` [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection AngeloGioacchino Del Regno
@ 2023-06-01 14:53     ` Jason-JH Lin (林睿祥)
  0 siblings, 0 replies; 3+ messages in thread
From: Jason-JH Lin (林睿祥) @ 2023-06-01 14:53 UTC (permalink / raw)
  To: amergnat@baylibre.com, angelogioacchino.delregno@collabora.com,
	chunkuang.hu@kernel.org
  Cc: linux-mediatek@lists.infradead.org,
	Singo Chang (張興國),
	Johnson Wang (王聖鑫),
	Jason-ch Chen (陳建豪),
	Shawn Sung (宋孝謙),
	linux-kernel@vger.kernel.org,
	Nancy Lin (林欣螢),
	dri-devel@lists.freedesktop.org,
	Project_Global_Chrome_Upstream_Group,
	Nathan Lu (呂東霖),
	linux-arm-kernel@lists.infradead.org, matthias.bgg@gmail.com,
	Rex-BC Chen (陳柏辰)

Hi Angelo,

Thanks for the review and sorry for the late reply.


On Thu, 2023-05-18 at 11:29 +0200, AngeloGioacchino Del Regno wrote:
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> 
> 
> Il 09/05/23 17:07, Jason-JH.Lin ha scritto:
> > 1. Move output drm connector from each ddp_path array to connector
> > array.
> > 2. Add dynamic select available connector flow in crtc create and
> > enable.
> > 
> > Signed-off-by: Nancy Lin <nancy.lin@mediatek.com>
> > Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
> > Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> > ---
> >   drivers/gpu/drm/mediatek/mtk_disp_drv.h     |   1 +
> >   drivers/gpu/drm/mediatek/mtk_dpi.c          |   9 ++
> >   drivers/gpu/drm/mediatek/mtk_drm_crtc.c     | 111
> > +++++++++++++++++++-
> >   drivers/gpu/drm/mediatek/mtk_drm_crtc.h     |   5 +-
> >   drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  27 +++++
> >   drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |   8 ++
> >   drivers/gpu/drm/mediatek/mtk_drm_drv.c      |  44 ++++++--
> >   drivers/gpu/drm/mediatek/mtk_drm_drv.h      |   8 ++
> >   8 files changed, 202 insertions(+), 11 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > index 2254038519e1..72c57442f965 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> > @@ -44,6 +44,7 @@ void mtk_dither_set_common(void __iomem *regs,
> > struct cmdq_client_reg *cmdq_reg,
> > 
> >   void mtk_dpi_start(struct device *dev);
> >   void mtk_dpi_stop(struct device *dev);
> > +int mtk_dpi_encoder_index(struct device *dev);
> > 
> >   void mtk_dsi_ddp_start(struct device *dev);
> >   void mtk_dsi_ddp_stop(struct device *dev);
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > index 948a53f1f4b3..765fc976e41f 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > @@ -782,6 +782,15 @@ void mtk_dpi_stop(struct device *dev)
> >       mtk_dpi_power_off(dpi);
> >   }
> > 
> > +int mtk_dpi_encoder_index(struct device *dev)
> > +{
> > +     struct mtk_dpi *dpi = dev_get_drvdata(dev);
> > +     int encoder_index = drm_encoder_index(&dpi->encoder);
> > +
> > +     dev_dbg(dev, "encoder index:%d", encoder_index);
> > +     return encoder_index;
> > +}
> > +
> >   static int mtk_dpi_bind(struct device *dev, struct device
> > *master, void *data)
> >   {
> >       struct mtk_dpi *dpi = dev_get_drvdata(dev);
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > index d40142842f85..54d48932b833 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> > @@ -60,8 +60,12 @@ struct mtk_drm_crtc {
> >       struct device                   *mmsys_dev;
> >       struct device                   *dma_dev;
> >       struct mtk_mutex                *mutex;
> > +     unsigned int                    ddp_comp_nr_ori;
> > +     unsigned int                    max_ddp_comp_nr;
> >       unsigned int                    ddp_comp_nr;
> >       struct mtk_ddp_comp             **ddp_comp;
> > +     unsigned int                    conn_route_nr;
> 
> `num_conn_routes` is clearer.
> 
OK, I'll modify it.

> > +     const struct mtk_drm_route      *conn_routes;
> > 
> >       /* lock for display hardware access */
> >       struct mutex                    hw_lock;
> > @@ -649,6 +653,84 @@ static void mtk_drm_crtc_disable_vblank(struct
> > drm_crtc *crtc)
> >       mtk_ddp_comp_disable_vblank(comp);
> >   }
> > 
> > +static unsigned int mtk_drm_crtc_max_num_route_comp(struct
> > mtk_drm_crtc *mtk_crtc)
> > +{
> > +     unsigned int max_num = 0;
> > +     unsigned int i;
> > +
> > +     if (!mtk_crtc->conn_route_nr)
> > +             return 0;
> > +
> > +     for (i = 0; i < mtk_crtc->conn_route_nr; i++)
> > +             max_num = max(mtk_crtc->conn_routes[i].route_len,
> > max_num);
> 
> If we rename this to `num_routes` or `max_routes` it becomes a bit
> more
> understandable.
> 
OK, I'll modify it.

> > +
> > +     return max_num;
> > +}
> > +
> > +static int mtk_drm_crtc_update_output(struct drm_crtc *crtc,
> > +                                   struct drm_atomic_state *state)
> > +{
> > +     const struct mtk_drm_route *conn_routes;
> > +     int crtc_index = drm_crtc_index(crtc);
> > +     int i;
> > +     struct device *dev;
> > +     struct drm_crtc_state *crtc_state = state-
> > >crtcs[crtc_index].new_state;
> > +     struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
> > +     struct mtk_drm_private *priv = crtc->dev->dev_private;
> > +     unsigned int comp_id;
> > +     unsigned int encoder_mask = crtc_state->encoder_mask;
> > +     unsigned int route_len = 0, route_index = 0;
> > +
> > +     if (!mtk_crtc->conn_route_nr)
> > +             return 0;
> > +
> > +     priv = priv->all_drm_private[crtc_index];
> > +     dev = priv->dev;
> > +
> > +     dev_dbg(dev, "connector change:%d, encoder mask0x%x for
> > crtc%d",
> > +             crtc_state->connectors_changed, encoder_mask,
> > crtc_index);
> > +
> > +     if (!crtc_state->connectors_changed)
> > +             return 0;
> > +
> > +     conn_routes = mtk_crtc->conn_routes;
> > +
> > +     for (i = 0; i < mtk_crtc->conn_route_nr; i++) {
> > +             route_len = conn_routes[i].route_len;
> > +             if (route_len > 0) {
> 
> route_len is unsigned, it can never be < 0, so...
> 
>                 if (route_len) {
> 
It's better to use unsigned int.
I'll modify it.

> > +                     comp_id = conn_routes[i].route_ddp[route_len
> > - 1];
> > +                     if (priv->comp_node[comp_id]) {
> > +                             if ((1 << priv-
> > >ddp_comp[comp_id].encoder_index) == encoder_mask) {
> 
> This is effectively BIT().
> 
> if (encoder_mask == BIT(priv->ddp_comp[comp_id].encoder_index)) {
> 
> P.S.: Are you sure that this shouldn't be (encoder_mask &
> BIT(encoder_index))??
> 
Yes, encoder_index should be bitwise. I'll fixed it.

> > +                                     route_index = i;
> > +                                     break;
> > +                             }
> > +                     }
> > +             }
> > +     }
> > +
> 
> ..snip..
> 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> > b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> > index 3e9046993d09..672b9c7afee6 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
> > @@ -8,6 +8,7 @@
> > 
> >   #include <drm/drm_crtc.h>
> >   #include "mtk_drm_ddp_comp.h"
> > +#include "mtk_drm_drv.h"
> >   #include "mtk_drm_plane.h"
> > 
> >   #define MTK_LUT_SIZE        512
> > @@ -18,7 +19,9 @@ void mtk_drm_crtc_commit(struct drm_crtc *crtc);
> >   int mtk_drm_crtc_create(struct drm_device *drm_dev,
> >                       const unsigned int *path,
> >                       unsigned int path_len,
> > -                     int priv_data_index);
> > +                     int priv_data_index,
> > +                     const struct mtk_drm_route *conn_routes,
> > +                     unsigned int conn_routes_num);
> 
> num_conn_routes looks better.

OK, I'll modify it.
> 
> >   int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct
> > drm_plane *plane,
> >                            struct mtk_plane_state *state);
> >   void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct
> > drm_plane *plane,
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index f114da4d36a9..fe20ce26b19f 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> 
> ..snip..
> 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > index febcaeef16a1..1c1d670cfe41 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);
> > +     int (*encoder_index)(struct device *dev);
> 
> drm_encoder_index returns an unsigned int type, so this one can never
> be negative:
> please change the return value of this function to unsigned int type.
> 
OK, I'll modify it.

> >   };
> > 
> >   struct mtk_ddp_comp {
> > @@ -87,6 +88,7 @@ struct mtk_ddp_comp {
> >       int irq;
> >       unsigned int id;
> >       const struct mtk_ddp_comp_funcs *funcs;
> > +     int encoder_index;
> 
> Same here, unsigned int.
> 
OK, I'll modify it.

Regards,
Jason-JH.Lin

> >   };
> > 
> >   static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp
> > *comp)
> 
> Regards,
> Angelo
> 
> 

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2023-06-01 14:53 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <20230509150737.8075-1-jason-jh.lin@mediatek.com>
     [not found] ` <20230509150737.8075-2-jason-jh.lin@mediatek.com>
2023-05-18  9:29   ` [PATCH v3 1/2] drm/mediatek: Add ability to support dynamic connector selection AngeloGioacchino Del Regno
2023-06-01 14:53     ` Jason-JH Lin (林睿祥)
     [not found] ` <20230509150737.8075-3-jason-jh.lin@mediatek.com>
2023-05-18  9:30   ` [PATCH v3 2/2] drm/mediatek: Add DSI support for mt8188 vdosys0 AngeloGioacchino Del Regno

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox