linux-kernel - Re: [PATCH] drm/bridge: anx7625: keep last configure timing

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Message-ID: <CAJMQK-hTDv9FwQboeV2v9KwrNKAdYDjsEqCHcOqxqc2tkJEavA@mail.gmail.com>
Date:   Fri, 9 Dec 2022 18:09:31 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     Xin Ji <xji@...logixsemi.com>
Cc:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <robert.foss@...aro.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, bliang@...logixsemi.com,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/bridge: anx7625: keep last configure timing

On Fri, Dec 9, 2022 at 11:05 AM Xin Ji <xji@...logixsemi.com> wrote:
>
> Sometimes kernel may resume back quickly after suspend,
> and DRM not call .mode_set() to re-config
> display timing before calling .atomic_enable(), bridge
> driver with this patch to keep last configure timing.
>
> Signed-off-by: Xin Ji <xji@...logixsemi.com>

Acked-by: Hsin-Yi Wang <hsinyi@...omium.org>

> ---
>  drivers/gpu/drm/bridge/analogix/anx7625.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
> index b0ff1ecb80a5..eb9116503b63 100644
> --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> @@ -1403,7 +1403,6 @@ static void anx7625_stop_dp_work(struct anx7625_data *ctx)
>  {
>         ctx->hpd_status = 0;
>         ctx->hpd_high_cnt = 0;
> -       ctx->display_timing_valid = 0;
>  }
>
>  static void anx7625_start_dp_work(struct anx7625_data *ctx)
> --
> 2.25.1
>