linux-kernel - [PATCH 12/19] drm/msm/dp: Drop ST_MAINLINK_READY hpd

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Message-Id: <20250711-hpd-refactor-v1-12-33cbac823f34@oss.qualcomm.com>
Date: Fri, 11 Jul 2025 17:58:17 -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 12/19] drm/msm/dp: Drop ST_MAINLINK_READY hpd_state

Drop the now-unused ST_MAINLINK_READY hpd_state.

Signed-off-by: Jessica Zhang <jessica.zhang@....qualcomm.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 17093b78900c..5efc8d4ecf54 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -46,7 +46,6 @@ enum {
 /* event thread connection state */
 enum {
 	ST_DISCONNECTED,
-	ST_MAINLINK_READY,
 	ST_CONNECTED,
 	ST_DISCONNECT_PENDING,
 };
@@ -526,7 +525,6 @@ static int msm_dp_display_handle_port_status_changed(struct msm_dp_display_priva
 		}
 	} else {
 		if (!dp->msm_dp_display.connected) {
-			dp->hpd_state = ST_MAINLINK_READY;
 			rc = msm_dp_display_process_hpd_high(dp);
 			if (rc)
 				dp->hpd_state = ST_DISCONNECTED;
@@ -613,8 +611,6 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_display_private *dp, u32 data)
 		dp->hpd_state = ST_DISCONNECTED;
 		dp->msm_dp_display.connected = false;
 		pm_runtime_put_sync(&pdev->dev);
-	} else {
-		dp->hpd_state = ST_MAINLINK_READY;
 	}
 
 	drm_dbg_dp(dp->drm_dev, "After, type=%d hpd_state=%d\n",

-- 
2.50.1