From: Sean Paul <sean@poorly.run>
To: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>,
Thierry Reding <thierry.reding@gmail.com>,
Sandeep Panda <spanda@codeaurora.org>,
linux-arm-msm@vger.kernel.org,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
jsanka@codeaurora.org, ryandcase@chromium.org,
David Airlie <airlied@linux.ie>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/6] drm/panel: simple: Add "no-hpd" delay for Innolux TV123WAM
Date: Fri, 26 Oct 2018 10:41:39 -0400 [thread overview]
Message-ID: <20181026144139.GR154160@art_vandelay> (raw)
In-Reply-To: <20181025222134.174583-3-dianders@chromium.org>
On Thu, Oct 25, 2018 at 03:21:31PM -0700, Douglas Anderson wrote:
> If the HPD signal isn't hooked up to this panel we need a 200 ms
> delay. In the datasheet this is shown as the maximum time that HPD
> will take to be asserted after power is given to the panel.
>
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
> ---
>
> Changes in v2:
> - Use "hpd_absent_delay" property instead of a bool + prepare delay
>
> drivers/gpu/drm/panel/panel-simple.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index 687fd087b9fc..88592f9a0018 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -1396,6 +1396,7 @@ static const struct panel_desc innolux_tv123wam = {
> .height = 173,
> },
> .delay = {
> + .hpd_absent_delay = 200,
> .unprepare = 500,
> },
> };
> --
> 2.19.1.568.g152ad8e336-goog
>
--
Sean Paul, Software Engineer, Google / Chromium OS
next prev parent reply other threads:[~2018-10-26 14:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-25 22:21 [PATCH v2 1/6] dt-bindings: drm/panel: simple: Add no-hpd property Douglas Anderson
2018-10-25 22:21 ` [PATCH v2 2/6] drm/panel: simple: Support panels with HPD where HPD isn't connected Douglas Anderson
2018-10-26 14:41 ` Sean Paul
2018-10-25 22:21 ` [PATCH v2 3/6] drm/panel: simple: Add "no-hpd" delay for Innolux TV123WAM Douglas Anderson
2018-10-26 14:41 ` Sean Paul [this message]
2018-10-25 22:21 ` [PATCH v2 4/6] drm/bridge: ti-sn65dsi86: Remove the mystery delay Douglas Anderson
2018-10-29 9:03 ` Andrzej Hajda
2018-10-25 22:21 ` [PATCH v2 5/6] dt-bindings: drm/panel: simple: Innolux TV123WAM is actually P120ZDG-BF1 Douglas Anderson
2018-10-26 14:43 ` Sean Paul
2018-10-26 14:46 ` Sean Paul
2018-10-26 15:01 ` Doug Anderson
2018-10-29 9:10 ` Andrzej Hajda
2018-10-25 22:21 ` [PATCH v2 6/6] " Douglas Anderson
2018-10-26 14:44 ` Sean Paul
2018-10-29 16:16 ` [PATCH v2 1/6] dt-bindings: drm/panel: simple: Add no-hpd property Sean Paul
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