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From:   Jonathan Cormier <jcormier@criticallink.com>
Date:   Tue, 04 Apr 2023 12:26:49 -0400
Subject: [PATCH v4 2/3] drm/bridge: tfp410: Fix logic to configured polled
 HPD
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Message-Id: <20230125-tfp410_i2c-v4-2-f983bcef2df8@criticallink.com>
References: <20230125-tfp410_i2c-v4-0-f983bcef2df8@criticallink.com>
In-Reply-To: <20230125-tfp410_i2c-v4-0-f983bcef2df8@criticallink.com>
To:     Andrzej Hajda <andrzej.hajda@intel.com>,
        Neil Armstrong <neil.armstrong@linaro.org>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Jonas Karlman <jonas@kwiboo.se>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc:     dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Michael Williamson <michael.williamson@criticallink.com>,
        Bob Duke <bduke@criticallink.com>,
        Jonathan Cormier <jcormier@criticallink.com>
Precedence: bulk

From: Michael Williamson <michael.williamson@criticallink.com>

The logic to configure polling (vs async/irq notification) of hot-plug
events was not correct.  If the connected bridge requires polling,
then inform the upstream bridge we also require polling.

Fixes: 5cafa0f1853b ("drm/bridge: tfp410: Replace manual connector handling with bridge")

Signed-off-by: Michael Williamson <michael.williamson@criticallink.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Jonathan Cormier <jcormier@criticallink.com>
---
 drivers/gpu/drm/bridge/ti-tfp410.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c
index bb3f8d0ff207..41007d05d584 100644
--- a/drivers/gpu/drm/bridge/ti-tfp410.c
+++ b/drivers/gpu/drm/bridge/ti-tfp410.c
@@ -155,7 +155,7 @@ static int tfp410_attach(struct drm_bridge *bridge,
 		return -ENODEV;
 	}
 
-	if (dvi->next_bridge->ops & DRM_BRIDGE_OP_DETECT)
+	if (dvi->next_bridge->ops & DRM_BRIDGE_OP_HPD)
 		dvi->connector.polled = DRM_CONNECTOR_POLL_HPD;
 	else
 		dvi->connector.polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;

-- 
2.25.1