From: Eric Anholt <eric@anholt.net>
To: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org, Eric Anholt <eric@anholt.net>
Subject: [PATCH 1/2] drm/vc4: Increase timeout for HDMI_SCHEDULER_CONTROL changes.
Date: Wed, 28 Sep 2016 19:20:44 -0700 [thread overview]
Message-ID: <20160929022045.24813-1-eric@anholt.net> (raw)
Fixes occasional debug spew at boot when connected directly through
HDMI, and probably confusing the HDMI state machine when we go trying
to poke registers for the enable sequence too soon.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 4452f3631cac..5770d6704f4b 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -369,7 +369,7 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
VC4_HDMI_SCHEDULER_CONTROL_MODE_HDMI);
ret = wait_for(HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) &
- VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE, 1);
+ VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE, 1000);
WARN_ONCE(ret, "Timeout waiting for "
"VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE\n");
} else {
@@ -381,7 +381,7 @@ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
~VC4_HDMI_SCHEDULER_CONTROL_MODE_HDMI);
ret = wait_for(!(HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) &
- VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE), 1);
+ VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE), 1000);
WARN_ONCE(ret, "Timeout waiting for "
"!VC4_HDMI_SCHEDULER_CONTROL_HDMI_ACTIVE\n");
}
--
2.9.3
next reply other threads:[~2016-09-29 2:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-29 2:20 Eric Anholt [this message]
2016-09-29 2:20 ` [PATCH 2/2] drm/vc4: Add support for interlaced modes on HDMI Eric Anholt
2016-09-29 2:36 ` Mark yao
2016-09-29 2:53 ` Eric Anholt
2016-09-29 22:22 ` [PATCH 2/2 v2] drm/vc4: Fix " Eric Anholt
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