linux-kernel - Re: [PATCH v2 1/2] drm/mediatek: dsi: Fix EoTp flag

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Date:   Sun, 7 Mar 2021 08:28:59 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     Jitao Shi <jitao.shi@...iatek.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        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>,
        DTML <devicetree@...r.kernel.org>,
        srv_heupstream <srv_heupstream@...iatek.com>,
        huijuan.xie@...iatek.com, stonea168@....com,
        cawa.cheng@...iatek.com,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>, yingjoe.chen@...iatek.com,
        eddie.huang@...iatek.com,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 1/2] drm/mediatek: dsi: Fix EoTp flag

Hi, Jitao:

Jitao Shi <jitao.shi@...iatek.com> 於 2021年2月1日 週一 上午11:36寫道：
>
> SoC will transmit the EoTp (End of Transmission packet) when
> MIPI_DSI_MODE_EOT_PACKET flag is set.

I've modified the title and message as:

drm/mediatek: dsi: Use symbolized register definition

For HSTX_CKLP_EN and DIS_EOT, use symbolized register
definition instead of magic number.

And applied to mediatek-drm-next [1], thanks.

https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next

Regards,
Chun-Kuang.

>
> Signed-off-by: Jitao Shi <jitao.shi@...iatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dsi.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index 65fd99c528af..2bc46f2350f1 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -401,8 +401,11 @@ static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi)
>                 break;
>         }
>
> -       tmp_reg |= (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) << 6;
> -       tmp_reg |= (dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET) >> 3;
> +       if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
> +               tmp_reg |= HSTX_CKLP_EN;
> +
> +       if (!(dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET))
> +               tmp_reg |= DIS_EOT;
>
>         writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL);
>  }
> --
> 2.12.5
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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