Re: [PATCH 05/10] drm: Use the state pointer directly in planes atomic_check

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Hi Maxime,

Thank you for the patch.

On Fri, Jan 15, 2021 at 01:56:57PM +0100, Maxime Ripard wrote:
> Now that atomic_check takes the global atomic state as a parameter, we
> don't need to go through the pointer in the plane state.
> 
> This was done using the following coccinelle script:
> 
> @ plane_atomic_func @
> identifier helpers;
> identifier func;
> @@
> 
> static struct drm_plane_helper_funcs helpers = {
> 	...,
> 	.atomic_check = func,
> 	...,
> };
> 
> @@
> identifier plane_atomic_func.func;
> identifier plane, state;
> identifier plane_state;
> @@
> 
>   func(struct drm_plane *plane, struct drm_atomic_state *state) {
>   ...
> - struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
>   <... when != plane_state
> - plane_state->state
> + state
>   ...>
>  }
> 
> @@
> identifier plane_atomic_func.func;
> identifier plane, state;
> identifier plane_state;
> @@
> 
>   func(struct drm_plane *plane, struct drm_atomic_state *state) {
>   ...
>   struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
>   <...
> - plane_state->state
> + state
>   ...>
>  }
> 
> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
> ---

[snip]

>  drivers/gpu/drm/omapdrm/omap_plane.c              | 2 +-
>  drivers/gpu/drm/xlnx/zynqmp_disp.c                | 2 +-

For these, with the small issue below addressed,

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

[snip]

> diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp.c b/drivers/gpu/drm/xlnx/zynqmp_disp.c
> index b0a3ba528718..d749acc78c85 100644
> --- a/drivers/gpu/drm/xlnx/zynqmp_disp.c
> +++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c
> @@ -1152,7 +1152,7 @@ zynqmp_disp_plane_atomic_check(struct drm_plane *plane,
>  	if (!new_plane_state->crtc)
>  		return 0;
>  
> -	crtc_state = drm_atomic_get_crtc_state(new_plane_state->state,
> +	crtc_state = drm_atomic_get_crtc_state(state,
>  					       new_plane_state->crtc);

This now holds on a single line.

>  	if (IS_ERR(crtc_state))
>  		return PTR_ERR(crtc_state);

[snip]

-- 
Regards,

Laurent Pinchart
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