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From: Kuogee Hsieh <quic_khsieh@quicinc.com>
To: <dri-devel@lists.freedesktop.org>, <robdclark@gmail.com>,
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CC: Kuogee Hsieh <quic_khsieh@quicinc.com>, <quic_abhinavk@quicinc.com>,
        <quic_jesszhan@quicinc.com>, <quic_sbillaka@quicinc.com>,
        <marijn.suijten@somainline.org>, <freedreno@lists.freedesktop.org>,
        <linux-arm-msm@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v1] drm/msm/dp: use dp_hpd_plug_handle() and dp_hpd_unplug_handle() directly
Date: Thu, 28 Mar 2024 13:04:06 -0700
Message-ID: <1711656246-3483-2-git-send-email-quic_khsieh@quicinc.com>
In-Reply-To: <1711656246-3483-1-git-send-email-quic_khsieh@quicinc.com>
References: <1711656246-3483-1-git-send-email-quic_khsieh@quicinc.com>
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For internal HPD case, hpd_event_thread is created to handle HPD
interrupts generated by HPD block of DP controller. It converts
HPD interrupts into events and executed them under hpd_event_thread
context. For external HPD case, HPD events is delivered by way of
dp_bridge_hpd_notify() under thread context. Since they are executed
under thread context already, there is no reason to hand over those
events to hpd_event_thread. Hence dp_hpd_plug_handle() and
dp_hpd_unplug_hanlde() are called directly at dp_bridge_hpd_notify().

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 94dd60f..0476ad9 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1706,7 +1706,8 @@ void dp_bridge_hpd_notify(struct drm_bridge *bridge,
 	status &= ~0x80000000;
 
 	if (!dp_display->link_ready && status == connector_status_connected)
-		dp_add_event(dp, EV_HPD_PLUG_INT, 0, 0);
+		dp_hpd_plug_handle(dp, 0);
 	else if (dp_display->link_ready && status == connector_status_disconnected)
-		dp_add_event(dp, EV_HPD_UNPLUG_INT, 0, 0);
+		dp_hpd_unplug_handle(dp, 0);
+
 }
-- 
2.7.4