linux-kernel - [PATCH 15/19] drm/msm/dp: Drop ST_DISCONNECT

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Message-Id: <20250711-hpd-refactor-v1-15-33cbac823f34@oss.qualcomm.com>
Date: Fri, 11 Jul 2025 17:58:20 -0700
From: Jessica Zhang <jessica.zhang@....qualcomm.com>
To: Rob Clark <robin.clark@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Dmitry Baryshkov <lumag@...nel.org>, Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Yongxing Mou <quic_yongmou@...cinc.com>
Subject: [PATCH 15/19] drm/msm/dp: Drop ST_DISCONNECT_PENDING

Drop the now-unused ST_DISCONNECT_PENDING state. This will completely
remove the hpd state enum.

Signed-off-by: Jessica Zhang <jessica.zhang@....qualcomm.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index c7ad61e96b37..529e30193168 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -43,11 +43,6 @@ enum {
 	ISR_HPD_LO_GLITH_COUNT,
 };
 
-/* event thread connection state */
-enum {
-	ST_DISCONNECT_PENDING,
-};
-
 enum {
 	EV_NO_EVENT,
 	/* hpd events */
@@ -517,10 +512,8 @@ static int msm_dp_display_handle_port_status_changed(struct msm_dp_display_priva
 
 	if (drm_dp_is_branch(dp->panel->dpcd) && dp->link->sink_count == 0) {
 		drm_dbg_dp(dp->drm_dev, "sink count is zero, nothing to do\n");
-		if (dp->msm_dp_display.connected) {
-			dp->hpd_state = ST_DISCONNECT_PENDING;
+		if (dp->msm_dp_display.connected)
 			msm_dp_add_event(dp, EV_USER_NOTIFICATION, false, 0);
-		}
 	} else {
 		if (!dp->msm_dp_display.connected) {
 			rc = msm_dp_display_process_hpd_high(dp);

-- 
2.50.1