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drm/msm/hdmi: rework HDMI IRQ handler

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Disable the HPD interrupt when acking it, to avoid spurious
interrupt.

Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
This commit is contained in:
Jilai Wang
2014-12-01 15:12:23 -05:00
committed by Rob Clark
parent e6d7a16f5f
commit ff2f974e5c
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/msm/hdmi/hdmi_connector.c
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@ -251,11 +251,11 @@ void hdmi_connector_irq(struct drm_connector *connector)
(hpd_int_status & HDMI_HPD_INT_STATUS_INT)) { (hpd_int_status & HDMI_HPD_INT_STATUS_INT)) {
bool detected = !!(hpd_int_status & HDMI_HPD_INT_STATUS_CABLE_DETECTED); bool detected = !!(hpd_int_status & HDMI_HPD_INT_STATUS_CABLE_DETECTED);
DBG("status=%04x, ctrl=%04x", hpd_int_status, hpd_int_ctrl); /* ack & disable (temporarily) HPD events: */
/* ack the irq: */
hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL, 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: */ /* detect disconnect if we are connected or visa versa: */
hpd_int_ctrl = HDMI_HPD_INT_CTRL_INT_EN; hpd_int_ctrl = HDMI_HPD_INT_CTRL_INT_EN;