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From: Enric Balletbo i Serra <enric.balletbo@collabora.com>
To: architt@codeaurora.org, inki.dae@samsung.com,
	thierry.reding@gmail.com, hjc@rock-chips.com,
	seanpaul@chromium.org, airlied@linux.ie, tfiga@chromium.org,
	heiko@sntech.de
Cc: dri-devel@lists.freedesktop.org, dianders@chromium.org,
	a.hajda@samsung.com, ykk@rock-chips.com, kernel@collabora.com,
	m.szyprowski@samsung.com, linux-samsung-soc@vger.kernel.org,
	jy0922.shim@samsung.com, rydberg@bitmath.org, krzk@kernel.org,
	linux-rockchip@lists.infradead.org, kgene@kernel.org,
	linux-input@vger.kernel.org, orjan.eide@arm.com,
	wxt@rock-chips.com, jeffy.chen@rock-chips.com,
	linux-arm-kernel@lists.infradead.org, mark.yao@rock-chips.com,
	wzz@rock-chips.com, hl@rock-chips.com, jingoohan1@gmail.com,
	sw0312.kim@samsung.com, linux-kernel@vger.kernel.org,
	kyungmin.park@samsung.com, Laurent.pinchart@ideasonboard.com,
	kuankuan.y@gmail.com, hshi@chromium.org,
	"Stéphane Marchesin" <marcheu@chromium.org>,
	"Enric Balletbo i Serra" <enric.balletbo@collabora.com>
Subject: [PATCH v5 14/36] drm/bridge: analogix_dp: Extend hpd check time to 100ms
Date: Fri,  9 Mar 2018 23:23:05 +0100	[thread overview]
Message-ID: <20180309222327.18689-15-enric.balletbo@collabora.com> (raw)
In-Reply-To: <20180309222327.18689-1-enric.balletbo@collabora.com>

From: Lin Huang <hl@rock-chips.com>

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 <marcheu@chromium.org>
Cc: 征增 王 <wzz@rock-chips.com>
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
---

 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 3a222e7e46ee..6cbde8473f58 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);
 	}
 
 	/*
-- 
2.16.1

  parent reply	other threads:[~2018-03-09 22:24 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-09 22:22 [PATCH v5 00/36] DRM Rockchip rk3399 (Kevin) Enric Balletbo i Serra
2018-03-09 22:22 ` [PATCH v5 01/36] drm/bridge: analogix_dp: detect Sink PSR state after configuring the PSR Enric Balletbo i Serra
2018-03-12 17:00   ` Heiko Stübner
2018-03-14  5:29   ` Archit Taneja
2018-03-14 10:32   ` Heiko Stübner
2018-03-09 22:22 ` [PATCH v5 02/36] drm/rockchip: Remove analogix psr worker Enric Balletbo i Serra
2018-03-12 16:26   ` Heiko Stübner
2018-03-14 10:32   ` Heiko Stübner
2018-03-09 22:22 ` [PATCH v5 03/36] drm/bridge: analogix_dp: Don't change psr while bridge is disabled Enric Balletbo i Serra
2018-03-12 17:02   ` Heiko Stübner
2018-03-14  5:30   ` Archit Taneja
2018-03-14 10:32   ` Heiko Stübner
2018-03-09 22:22 ` [PATCH v5 04/36] drm/rockchip: add mutex vop lock Enric Balletbo i Serra
2018-03-12 16:29   ` Heiko Stübner
2018-03-14 10:33   ` Heiko Stübner
2018-03-09 22:22 ` [PATCH v5 05/36] drm/bridge: analogix_dp: add fast link train for eDP Enric Balletbo i Serra
2018-03-14  5:52   ` Archit Taneja
2018-03-14 10:39   ` Heiko Stübner
2018-03-09 22:22 ` [PATCH v5 06/36] drm/rockchip: Only wait for panel ACK on PSR entry Enric Balletbo i Serra
2018-03-12 16:58   ` Heiko Stübner
2018-03-13  0:26     ` Enric Balletbo i Serra
2018-03-14  5:54   ` Archit Taneja
2018-03-14 12:51   ` Heiko Stübner
2018-03-09 22:22 ` [PATCH v5 07/36] drm/bridge: analogix_dp: Move enable video into config_video() Enric Balletbo i Serra
2018-03-14  5:59   ` Archit Taneja
2018-03-17 16:00     ` Heiko Stuebner
2018-03-09 22:22 ` [PATCH v5 08/36] drm/bridge: analogix_dp: Check AUX_EN status when doing AUX transfer Enric Balletbo i Serra
2018-03-14  6:01   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 09/36] drm/bridge: analogix_dp: Don't use fast link training when panel just powered up Enric Balletbo i Serra
2018-03-14  6:03   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 10/36] drm/bridge: analogix_dp: Retry bridge enable when it failed Enric Balletbo i Serra
2018-03-14  6:07   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 11/36] drm/bridge: analogix_dp: Wait for HPD signal before configuring link Enric Balletbo i Serra
2018-03-14  6:09   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 12/36] drm/bridge: analogix_dp: Set PD_INC_BG first when powering up edp phy Enric Balletbo i Serra
2018-03-14  6:10   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 13/36] drm/bridge: analogix_dp: Ensure edp is disabled when shutting down the panel Enric Balletbo i Serra
2018-03-14  6:14   ` Archit Taneja
2018-03-09 22:23 ` Enric Balletbo i Serra [this message]
2018-03-14  6:15   ` [PATCH v5 14/36] drm/bridge: analogix_dp: Extend hpd check time to 100ms Archit Taneja
2018-03-09 22:23 ` [PATCH v5 15/36] drm/bridge: analogix_dp: Fix incorrect usage of enhanced mode Enric Balletbo i Serra
2018-03-14  6:17   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 16/36] drm/bridge: analogix_dp: Check dpcd write/read status Enric Balletbo i Serra
2018-03-14  6:19   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 17/36] drm/bridge: analogix_dp: Fix AUX_PD bit for Rockchip Enric Balletbo i Serra
2018-03-14  6:23   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 18/36] drm/bridge: analogix_dp: Reset aux channel if an error occurred Enric Balletbo i Serra
2018-03-14  6:30   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 19/36] drm/rockchip: Restore psr->state when enable/disable psr failed Enric Balletbo i Serra
2018-03-12 17:06   ` Heiko Stübner
2018-03-14  6:32   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 20/36] drm/bridge: analogix_dp: Don't use ANALOGIX_DP_PLL_CTL to control pll Enric Balletbo i Serra
2018-03-14  6:33   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 21/36] drm/bridge: analogix_dp: Fix timeout of video streamclk config Enric Balletbo i Serra
2018-03-14  6:33   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 22/36] drm/bridge: analogix_dp: Fix incorrect operations with register ANALOGIX_DP_FUNC_EN_1 Enric Balletbo i Serra
2018-03-14  6:34   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 23/36] drm/bridge: analogix_dp: Move fast link training detect to set_bridge Enric Balletbo i Serra
2018-03-14  6:52   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 24/36] drm/bridge: analogix_dp: Reorder plat_data->power_off to happen sooner Enric Balletbo i Serra
2018-03-14  6:50   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 25/36] drm/bridge: analogix_dp: Properly log AUX CH errors Enric Balletbo i Serra
2018-03-14  6:52   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 26/36] drm/bridge: analogix_dp: Properly disable aux chan retries on rockchip Enric Balletbo i Serra
2018-03-14  6:53   ` Archit Taneja
2018-03-09 22:23 ` [PATCH v5 27/36] drm/rockchip: pre dither down when output bpc is 8bit Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 28/36] drm/bridge: analogix_dp: Split the platform-specific poweron in two parts Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 29/36] drm/rockchip: analogix_dp: Do not call Analogix code before bind Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 30/36] drm/rockchip: Disable PSR on input events Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 31/36] drm/rockchip: Cancel PSR enable work before changing the state Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 32/36] drm/rockchip: psr: Avoid redundant calls to .set() callback Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 33/36] drm/rockchip: psr: Sanitize semantics of allow/disallow API Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 34/36] drm/rockchip: Disable PSR from reboot notifier Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 35/36] drm/rockchip: Disallow PSR for the whole atomic commit Enric Balletbo i Serra
2018-03-09 22:23 ` [PATCH v5 36/36] drm/rockchip: psr: Remove flush by CRTC Enric Balletbo i Serra
2018-03-12 17:27 ` [PATCH v5 00/36] DRM Rockchip rk3399 (Kevin) Heiko Stübner

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