From: ykk@rock-chips.com (Yakir Yang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 8/8] drm: bridge/analogix_dp: expand the delay time for hpd detect
Date: Fri, 7 Aug 2015 05:54:04 -0500 [thread overview]
Message-ID: <1438944844-19243-1-git-send-email-ykk@rock-chips.com> (raw)
In-Reply-To: <1438943674-18191-1-git-send-email-ykk@rock-chips.com>
Some edp screen with no hpd signal would need some delay time
to ensure that screen would be ready for work, so we can expand
the delay time in hpd detect function, it works prefectly on my
rk3288 sdk board.
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
---
Changes in v2: None
drivers/gpu/drm/bridge/analogix_dp_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix_dp_core.c
index efd810c..3ba10fa2 100644
--- a/drivers/gpu/drm/bridge/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix_dp_core.c
@@ -71,7 +71,7 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
return 0;
timeout_loop++;
- usleep_range(10, 11);
+ usleep_range(100, 110);
}
/*
--
1.9.1
prev parent reply other threads:[~2015-08-07 10:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-07 10:34 [PATCH v2 0/8] Add Analogix Core Display Port Driver Yakir Yang
2015-08-07 10:37 ` [PATCH v2 1/8] drm: exynos/dp: fix code style Yakir Yang
2015-08-07 10:40 ` [PATCH v2 2/8] drm: exynos/dp: convert to drm bridge mode Yakir Yang
2015-08-07 10:46 ` [PATCH v2 4/8] drm: rockchip/dp: add rockchip platform dp driver Yakir Yang
2015-08-07 22:46 ` Heiko Stübner
2015-08-07 10:46 ` [PATCH v2 5/8] drm: bridge/analogix_dp: add platform device type support Yakir Yang
2015-08-07 10:49 ` [PATCH v2 6/8] drm: bridge: analogix_dp: add some rk3288 special registers setting Yakir Yang
2015-08-07 10:51 ` [PATCH v2 7/8] drm: bridge: analogix_dp: try force hpd after plug in lookup failed Yakir Yang
2015-08-07 10:54 ` Yakir Yang [this message]
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