From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752835AbeAZNXD (ORCPT ); Fri, 26 Jan 2018 08:23:03 -0500 Received: from bhuna.collabora.co.uk ([46.235.227.227]:34516 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752285AbeAZNRw (ORCPT ); Fri, 26 Jan 2018 08:17:52 -0500 From: Thierry Escande To: Archit Taneja , Inki Dae , Thierry Reding , Sandy Huang , Sean Paul , David Airlie , Tomasz Figa Cc: Haixia Shi , =?UTF-8?q?=C3=98rjan=20Eide?= , Zain Wang , Yakir Yang , Lin Huang , Douglas Anderson , Mark Yao , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 20/43] drm/bridge: analogix_dp: Extend hpd check time to 100ms Date: Fri, 26 Jan 2018 14:16:47 +0100 Message-Id: <20180126131710.7622-21-thierry.escande@collabora.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180126131710.7622-1-thierry.escande@collabora.com> References: <20180126131710.7622-1-thierry.escande@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Type: text/plain; charset = "utf-8" Content-Transfert-Encoding: 8bit Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lin Huang There was a 1ms delay to detect the hpd signal, which is too short to detect a short pulse. This patch extends this delay to 100ms. Cc: Stéphane Marchesin Cc: 征增 王 Signed-off-by: Lin Huang Signed-off-by: Sean Paul Signed-off-by: Thierry Escande Reviewed-by: Andrzej Hajda --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index fa4ef28e286f..9df92dc54dbe 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -76,7 +76,7 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp) return 0; timeout_loop++; - usleep_range(10, 11); + usleep_range(1000, 1100); } /* -- 2.14.1