linux-kernel - Re: [v10,3/3] drm/bridge: anx7625: config hs packets end aligned to avoid screen shift

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Message-ID: <7a8852b8-c108-f48d-172e-fa2e7605db9f@intel.com>
Date:   Wed, 19 Jan 2022 09:35:20 +0100
From:   Andrzej Hajda <andrzej.hajda@...el.com>
To:     Rex-BC Chen <rex-bc.chen@...iatek.com>, <chunkuang.hu@...nel.org>,
        <matthias.bgg@...il.com>, <narmstrong@...libre.com>,
        <robert.foss@...aro.org>, <daniel@...ll.ch>, <airlied@...ux.ie>,
        <p.zabel@...gutronix.de>
CC:     <xji@...logixsemi.com>, <jitao.shi@...iatek.com>,
        <xinlei.lee@...iatek.com>,
        <angelogioacchino.delregno@...labora.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [v10,3/3] drm/bridge: anx7625: config hs packets end aligned to
 avoid screen shift


On 19.01.2022 03:25, Rex-BC Chen wrote:
> This device requires the packets on lanes aligned at the end to fix
> screen shift or scroll.
>
> Signed-off-by: Jitao Shi <jitao.shi@...iatek.com>
> Signed-off-by: Rex-BC Chen <rex-bc.chen@...iatek.com>
> Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Reviewed-by: Xin Ji <xji@...logixsemi.com>

Reviewed-by: Andrzej Hajda <andrzej.hajda@...el.com>

Regards

Andrzej

> ---
>   drivers/gpu/drm/bridge/analogix/anx7625.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
> index 2346dbcc505f..fe32ab0878ae 100644
> --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> @@ -1673,7 +1673,8 @@ static int anx7625_attach_dsi(struct anx7625_data *ctx)
>   	dsi->format = MIPI_DSI_FMT_RGB888;
>   	dsi->mode_flags = MIPI_DSI_MODE_VIDEO	|
>   		MIPI_DSI_MODE_VIDEO_SYNC_PULSE	|
> -		MIPI_DSI_MODE_VIDEO_HSE;
> +		MIPI_DSI_MODE_VIDEO_HSE	|
> +		MIPI_DSI_HS_PKT_END_ALIGNED;
>   
>   	ret = devm_mipi_dsi_attach(dev, dsi);
>   	if (ret) {