linux-kernel - Re: [PATCH v8 18/19] drm/mediatek: change the aux retries times when receiving AUX

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Message-ID: <CAGXv+5GfiVhK1cvgjnnxHxHnL7rQnUyQJD93d9NHNmT+txfgcg@mail.gmail.com>
Date:   Wed, 16 Mar 2022 21:35:01 +0800
From:   Chen-Yu Tsai <wenst@...omium.org>
To:     Guillaume Ranquet <granquet@...libre.com>
Cc:     chunkuang.hu@...nel.org, p.zabel@...gutronix.de, airlied@...ux.ie,
        daniel@...ll.ch, robh+dt@...nel.org,
        maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, matthias.bgg@...il.com,
        chunfeng.yun@...iatek.com, kishon@...com, vkoul@...nel.org,
        deller@....de, ck.hu@...iatek.com, jitao.shi@...iatek.com,
        angelogioacchino.delregno@...labora.com,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-phy@...ts.infradead.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v8 18/19] drm/mediatek: change the aux retries times when
 receiving AUX_DEFER

On Fri, Feb 18, 2022 at 11:15 PM Guillaume Ranquet
<granquet@...libre.com> wrote:
>
> From: Jitao Shi <jitao.shi@...iatek.com>
>
> DP 1.4a Section 2.8.7.1.5.6.1:
> A DP Source device shall retry at least seven times upon receiving
> AUX_DEFER before giving up the AUX transaction.
>
> Aux should retry to send msg whether how many bytes.
>
> Signed-off-by: Jitao Shi <jitao.shi@...iatek.com>
> Signed-off-by: Guillaume Ranquet <granquet@...libre.com>

Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>