Disable the HPD interrupt when acking it, to avoid spurious
interrupt.
Change-Id: Icb64d7fa813380c7ffa3047058503ebab13ff4c4
Signed-off-by: Jilai Wang <jil...@codeaurora.org>
---
drivers/gpu/drm/msm/hdmi/hdmi_connector.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
index caa1301..c458348 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
@@ -251,11 +251,11 @@ void hdmi_connector_irq(struct drm_connector *connector)
(hpd_int_status & HDMI_HPD_INT_STATUS_INT)) {
bool detected = !!(hpd_int_status &
HDMI_HPD_INT_STATUS_CABLE_DETECTED);
- DBG("status=%04x, ctrl=%04x", hpd_int_status, hpd_int_ctrl);
-
- /* ack the irq: */
+ /* ack & disable (temporarily) HPD events: */
hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL,
- hpd_int_ctrl | HDMI_HPD_INT_CTRL_INT_ACK);
+ HDMI_HPD_INT_CTRL_INT_ACK);
+
+ DBG("status=%04x, ctrl=%04x", hpd_int_status, hpd_int_ctrl);
/* detect disconnect if we are connected or visa versa: */
hpd_int_ctrl = HDMI_HPD_INT_CTRL_INT_EN;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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