Re: [PATCH v7 3/4] drm/mediatek: Add ability to support dynamic connector selection

AngeloGioacchino Del Regno
2023-07-28T08:11:50Z

Il 27/07/23 18:41, 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 | 75 ++++++++++++++++++++-
> drivers/gpu/drm/mediatek/mtk_drm_crtc.h | 5 +-
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 26 +++++++
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 8 +++
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 20 ++++--
> drivers/gpu/drm/mediatek/mtk_drm_drv.h | 7 ++
> 8 files changed, 145 insertions(+), 6 deletions(-)
>

..snip..

> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index f114da4d36a9..bc7b0a0c20db 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -304,6 +304,7 @@ static const struct mtk_ddp_comp_funcs ddp_dither = {
> static const struct mtk_ddp_comp_funcs ddp_dpi = {
> .start = mtk_dpi_start,
> .stop = mtk_dpi_stop,
> + .encoder_index = mtk_dpi_encoder_index,
> };
>
> static const struct mtk_ddp_comp_funcs ddp_dsc = {
> @@ -507,6 +508,25 @@ static bool mtk_drm_find_comp_in_ddp(struct device *dev,
> return false;
> }
>
> +static int mtk_drm_find_comp_in_ddp_conn_path(struct device *dev,
> + const struct mtk_drm_route *routes,
> + unsigned int routes_num,

`num_routes` would be more readable.

> + struct mtk_ddp_comp *ddp_comp)
> +{
> + unsigned int i;
> +
> + if (!routes)
> + return 0;

if (!routes)
return -EINVAL;

> +
> + for (i = 0; i < routes_num; i++)
> + if (dev == ddp_comp[routes[i].route_ddp].dev)
> + return BIT(routes[i].crtc_id);
> +
> + DRM_INFO("Failed to find comp in ddp connector table\n");

This print is redundant.

> +
> + return 0;

return -ENODEV;

> +}
> +
> int mtk_ddp_comp_get_id(struct device_node *node,
> enum mtk_ddp_comp_type comp_type)
> {
> @@ -538,6 +558,12 @@ unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
> private->data->third_len, private->ddp_comp))
> ret = BIT(2);
> else
> + ret = mtk_drm_find_comp_in_ddp_conn_path(dev,
> + private->data->conn_routes,
> + private->data->num_conn_routes,
> + private->ddp_comp);
> +
> + if (ret == 0)

if (ret < 0)

> DRM_INFO("Failed to find comp in ddp table\n");
>
> return ret;

Regards,
Angelo