linux-kernel - Re: [PATCH v5 09/10] drm/atmel-hlcdc: Use crtc->mode

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Date:   Fri, 2 Jun 2017 11:35:25 +0200
From:   Boris Brezillon <boris.brezillon@...e-electrons.com>
To:     Jose Abreu <Jose.Abreu@...opsys.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        David Airlie <airlied@...ux.ie>
Subject: Re: [PATCH v5 09/10] drm/atmel-hlcdc: Use crtc->mode_valid()
 callback

On Thu, 25 May 2017 15:19:21 +0100
Jose Abreu <Jose.Abreu@...opsys.com> wrote:

> Now that we have a callback to check if crtc supports a given mode
> we can use it in atmel-hlcdc so that we restrict the number of probbed
> modes to the ones we can actually display.
> 
> Also, remove the mode_fixup() callback as this is no longer needed
> because mode_valid() will be called before.
> 
> NOTE: Not even compiled tested

Applied to drm-misc-next after fixing a compilation warning and
reformating to checkpatch happy.

Thanks,

Boris

> 
> Signed-off-by: Jose Abreu <joabreu@...opsys.com>
> Cc: Carlos Palminha <palminha@...opsys.com>
> Cc: Daniel Vetter <daniel.vetter@...ll.ch>
> Cc: Boris Brezillon <boris.brezillon@...e-electrons.com>
> Cc: David Airlie <airlied@...ux.ie>
> ---
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> index 53bfa56..bdfe74e 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
> @@ -140,13 +140,12 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c)
>  			   cfg);
>  }
>  
> -static bool atmel_hlcdc_crtc_mode_fixup(struct drm_crtc *c,
> -					const struct drm_display_mode *mode,
> -					struct drm_display_mode *adjusted_mode)
> +static enum drm_mode_status atmel_hlcdc_crtc_mode_valid(struct drm_crtc *c,
> +							const struct drm_display_mode *mode)
>  {
>  	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
>  
> -	return atmel_hlcdc_dc_mode_valid(crtc->dc, adjusted_mode) == MODE_OK;
> +	return atmel_hlcdc_dc_mode_valid(crtc->dc, mode);
>  }
>  
>  static void atmel_hlcdc_crtc_disable(struct drm_crtc *c)
> @@ -315,7 +314,7 @@ static void atmel_hlcdc_crtc_atomic_flush(struct drm_crtc *crtc,
>  }
>  
>  static const struct drm_crtc_helper_funcs lcdc_crtc_helper_funcs = {
> -	.mode_fixup = atmel_hlcdc_crtc_mode_fixup,
> +	.mode_valid = atmel_hlcdc_crtc_mode_valid,
>  	.mode_set = drm_helper_crtc_mode_set,
>  	.mode_set_nofb = atmel_hlcdc_crtc_mode_set_nofb,
>  	.mode_set_base = drm_helper_crtc_mode_set_base,