linux-kernel - Re: [PATCH] drm/atmel-hlcdc: set layer REP bit to enable replication logic

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Message-ID: <13aa50e4-a726-3f82-b186-79b452199a02@microchip.com>
Date:   Tue, 9 Jul 2019 16:24:49 +0000
From:   <Nicolas.Ferre@...rochip.com>
To:     <Joshua.Henderson@...rochip.com>, <bbrezillon@...nel.org>,
        <airlied@...ux.ie>, <alexandre.belloni@...tlin.com>
CC:     <dri-devel@...ts.freedesktop.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <sam@...nborg.org>
Subject: Re: [PATCH] drm/atmel-hlcdc: set layer REP bit to enable replication
 logic

On 09/07/2019 at 17:35, Joshua Henderson wrote:
> This bit enables replication logic to expand an RGB color less than 24
> bits, to 24 bits, which is used internally for all formats.  Otherwise,
> the least significant bits are always set to zero and the color may not
> be what is expected.
> 
> Signed-off-by: Joshua Henderson <joshua.henderson@...rochip.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>

Here is patchwork entry:
https://patchwork.kernel.org/patch/11037167/

Thanks, best regards,
   Nicolas

> ---
>   drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> index eb7c4cf..6f6cf61 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> @@ -389,7 +389,7 @@ atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane,
>   	atmel_hlcdc_layer_write_cfg(&plane->layer, ATMEL_HLCDC_LAYER_DMA_CFG,
>   				    cfg);
>   
> -	cfg = ATMEL_HLCDC_LAYER_DMA;
> +	cfg = ATMEL_HLCDC_LAYER_DMA | ATMEL_HLCDC_LAYER_REP;
>   
>   	if (plane->base.type != DRM_PLANE_TYPE_PRIMARY) {
>   		cfg |= ATMEL_HLCDC_LAYER_OVR | ATMEL_HLCDC_LAYER_ITER2BL |
> 


-- 
Nicolas Ferre