[Intel-gfx] [PATCH v2 12/17] drm/mcde: Use mode->clock instead of reverse calculating it from the vrefresh

[Daniel Vetter]

On Fri, Apr 03, 2020 at 11:40:03PM +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> htotal*vtotal*vrefresh ~= clock. So just say "clock" when we mean it.

Glorious.

Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>

> 
> Cc: Linus Walleij <linus.walleij at linaro.org>
> Cc: Sam Ravnborg <sam at ravnborg.org>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/mcde/mcde_dsi.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c
> index 52031d826f2c..c07a8e273b6f 100644
> --- a/drivers/gpu/drm/mcde/mcde_dsi.c
> +++ b/drivers/gpu/drm/mcde/mcde_dsi.c
> @@ -537,8 +537,7 @@ static void mcde_dsi_setup_video_mode(struct mcde_dsi *d,
>  	 * porches and sync.
>  	 */
>  	/* (ps/s) / (pixels/s) = ps/pixels */
> -	pclk = DIV_ROUND_UP_ULL(1000000000000,
> -				(drm_mode_vrefresh(mode) * mode->htotal * mode->vtotal));
> +	pclk = DIV_ROUND_UP_ULL(1000000000000, mode->clock);
>  	dev_dbg(d->dev, "picoseconds between two pixels: %llu\n",
>  		pclk);
>  
> -- 
> 2.24.1
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch