diff options
| author | Suraj Kandpal <suraj.kandpal@intel.com> | 2024-08-09 17:11:28 +0530 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2024-08-19 06:40:57 +0300 |
| commit | 5d41eeb6725e3e24853629e5d7635e4bc45d736e (patch) | |
| tree | c8c3d037a052ef4f35d3620173951830ee976921 | |
| parent | 47ac09b91befbb6a235ab620c32af719f8208399 (diff) | |
drm/i915/hdcp: Use correct cp_irq_countdrm-intel-fixes-2024-08-22
We are checking cp_irq_count from the wrong hdcp structure which
ends up giving timed out errors. We only increment the cp_irq_count
of the primary connector's hdcp structure but here in case of
multidisplay setup we end up checking the secondary connector's hdcp
structure, which will not have its cp_irq_count incremented. This leads
to a timed out at CP_IRQ error even though a CP_IRQ was raised. Extract
it from the correct intel_hdcp structure.
--v2
-Explain why it was the wrong hdcp structure [Jani]
Fixes: 8c9e4f68b861 ("drm/i915/hdcp: Use per-device debugs")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240809114127.3940699-2-suraj.kandpal@intel.com
(cherry picked from commit dd925902634def895690426bf10e0a8b3e56f56d)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_hdcp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_hdcp.c b/drivers/gpu/drm/i915/display/intel_dp_hdcp.c index 2edffe62f360..b0101d72b9c1 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_dp_hdcp.c @@ -39,7 +39,9 @@ static u32 transcoder_to_stream_enc_status(enum transcoder cpu_transcoder) static void intel_dp_hdcp_wait_for_cp_irq(struct intel_connector *connector, int timeout) { - struct intel_hdcp *hdcp = &connector->hdcp; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct intel_dp *dp = &dig_port->dp; + struct intel_hdcp *hdcp = &dp->attached_connector->hdcp; long ret; #define C (hdcp->cp_irq_count_cached != atomic_read(&hdcp->cp_irq_count)) |