linux-kernel - Re: [PATCH] drm/panel: rm68200: fix mode to 50fps

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Date:   Mon, 12 Oct 2020 15:31:32 +0000
From:   Philippe CORNU <philippe.cornu@...com>
To:     Yannick FERTRE <yannick.fertre@...com>,
        Antonio BORNEO <antonio.borneo@...com>,
        Thierry Reding <thierry.reding@...il.com>,
        "Sam Ravnborg" <sam@...nborg.org>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/panel: rm68200: fix mode to 50fps



On 9/25/20 4:16 PM, Yannick Fertre wrote:
> Compute new timings to get a framerate of 50fps with a pixel clock
> @54Mhz.
> 
> Signed-off-by: Yannick Fertre <yannick.fertre@...com>
> ---
>   drivers/gpu/drm/panel/panel-raydium-rm68200.c | 12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-raydium-rm68200.c b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
> index 2b9e48b0a491..412c0dbcb2b6 100644
> --- a/drivers/gpu/drm/panel/panel-raydium-rm68200.c
> +++ b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
> @@ -82,15 +82,15 @@ struct rm68200 {
>   };
>   
>   static const struct drm_display_mode default_mode = {
> -	.clock = 52582,
> +	.clock = 54000,
>   	.hdisplay = 720,
> -	.hsync_start = 720 + 38,
> -	.hsync_end = 720 + 38 + 8,
> -	.htotal = 720 + 38 + 8 + 38,
> +	.hsync_start = 720 + 48,
> +	.hsync_end = 720 + 48 + 9,
> +	.htotal = 720 + 48 + 9 + 48,
>   	.vdisplay = 1280,
>   	.vsync_start = 1280 + 12,
> -	.vsync_end = 1280 + 12 + 4,
> -	.vtotal = 1280 + 12 + 4 + 12,
> +	.vsync_end = 1280 + 12 + 5,
> +	.vtotal = 1280 + 12 + 5 + 12,
>   	.flags = 0,
>   	.width_mm = 68,
>   	.height_mm = 122,
> 

Hi Yannick,
Tested-by: Philippe Cornu <philippe.cornu@...com>
Thank you,
Philippe