From mboxrd@z Thu Jan 1 00:00:00 1970 From: Douglas Anderson Subject: [PATCH v2 3/6] drm/panel: simple: Add "no-hpd" delay for Innolux TV123WAM Date: Thu, 25 Oct 2018 15:21:31 -0700 Message-ID: <20181025222134.174583-3-dianders@chromium.org> References: <20181025222134.174583-1-dianders@chromium.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20181025222134.174583-1-dianders@chromium.org> Sender: linux-kernel-owner@vger.kernel.org To: Sean Paul , Thierry Reding , Sandeep Panda Cc: linux-arm-msm@vger.kernel.org, Laurent Pinchart , jsanka@codeaurora.org, ryandcase@chromium.org, Douglas Anderson , David Airlie , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org 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 --- 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