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drm/amd/display: Fix return value from rx irq handler on up request

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Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu 2017-08-22 15:49:57 -04:00 committed by Alex Deucher
parent 67a72b6944
commit aaa15026f2
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
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@ -1964,11 +1964,11 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd
* so do not handle as a normal sink status change interrupt.
*/
if (hpd_irq_dpcd_data.bytes.device_service_irq.bits.UP_REQ_MSG_RDY)
return true;
/* check if we have MST msg and return since we poll for it */
if (hpd_irq_dpcd_data.bytes.device_service_irq.
bits.DOWN_REP_MSG_RDY ||
hpd_irq_dpcd_data.bytes.device_service_irq.
bits.UP_REQ_MSG_RDY)
if (hpd_irq_dpcd_data.bytes.device_service_irq.bits.DOWN_REP_MSG_RDY)
return false;
/* For now we only handle 'Downstream port status' case.