linux-kernel - Re: [PATCH v7 1/3] drm/dsi: transer dsi hs packet aligned

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Message-ID: <CAAOTY_8H=TE8574xB3FFcGVgN_fTb_83+FT8ei1CDuB4k4-Oew@mail.gmail.com>
Date:   Tue, 5 Oct 2021 07:53:04 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     Jitao Shi <jitao.shi@...iatek.com>
Cc:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        CK Hu <ck.hu@...iatek.com>, stonea168@....com,
        huijuan.xie@...iatek.com, Rex-BC Chen <rex-bc.chen@...iatek.com>,
        shuijing.li@...iatek.com
Subject: Re: [PATCH v7 1/3] drm/dsi: transer dsi hs packet aligned

Hi, Jitao:

Jitao Shi <jitao.shi@...iatek.com> 於 2021年9月16日 週四 上午6:31寫道：
>
> Some DSI devices reqire the hs packet starting and ending
> at same time on all dsi lanes. So use a flag to those devices.
>

Reviewed-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>

> Signed-off-by: Jitao Shi <jitao.shi@...iatek.com>
> ---
>  include/drm/drm_mipi_dsi.h | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
> index af7ba8071eb0..8e8563792682 100644
> --- a/include/drm/drm_mipi_dsi.h
> +++ b/include/drm/drm_mipi_dsi.h
> @@ -177,6 +177,7 @@ struct mipi_dsi_device_info {
>   * @lp_rate: maximum lane frequency for low power mode in hertz, this should
>   * be set to the real limits of the hardware, zero is only accepted for
>   * legacy drivers
> + * @hs_packet_end_aligned: transfer dsi hs packet ending aligned
>   */
>  struct mipi_dsi_device {
>         struct mipi_dsi_host *host;
> @@ -189,6 +190,7 @@ struct mipi_dsi_device {
>         unsigned long mode_flags;
>         unsigned long hs_rate;
>         unsigned long lp_rate;
> +       bool hs_packet_end_aligned;
>  };
>
>  #define MIPI_DSI_MODULE_PREFIX "mipi-dsi:"
> --
> 2.25.1