[PATCH 5.4 047/138] drm: sun4i: hdmi: Fix inverted HPD result

[Greg Kroah-Hartman]

From: Chen-Yu Tsai <wens@xxxxxxxx>

[ Upstream commit baa1841eb797eadce6c907bdaed7cd6f01815404 ]

When the extra HPD polling in sun4i_hdmi was removed, the result of
HPD was accidentally inverted.

Fix this by inverting the check.

Fixes: bda8eaa6dee7 ("drm: sun4i: hdmi: Remove extra HPD polling")
Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
Tested-by: Mans Rullgard <mans@xxxxxxxxx>
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20200711011030.21997-1-wens@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
index 63b4de81686ac..4acdfa6087751 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
@@ -263,7 +263,7 @@ sun4i_hdmi_connector_detect(struct drm_connector *connector, bool force)
 	unsigned long reg;
 
 	reg = readl(hdmi->base + SUN4I_HDMI_HPD_REG);
-	if (reg & SUN4I_HDMI_HPD_HIGH) {
+	if (!(reg & SUN4I_HDMI_HPD_HIGH)) {
 		cec_phys_addr_invalidate(hdmi->cec_adap);
 		return connector_status_disconnected;
 	}
-- 
2.25.1