DP shim's config_stream_type considered to be succeeded when
return value of intel_dp_hdcp2_write_msg() equals to size of
message to be written, it makes config_stream_type to return
a zero success value in order to succeed the HDCP auth.
v2:
- config_stream_type() returns 0 on success. [Ram]
CC: Ramalingam C <ramalingam.c@xxxxxxxxx>
Signed-off-by: Anshuman Gupta <anshuman.gupta@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 2db8d46f61a1..2259c2527457 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -6448,6 +6448,7 @@ static
int intel_dp_hdcp2_config_stream_type(struct intel_digital_port *intel_dig_port,
bool is_repeater, u8 content_type)
{
+ int ret;
struct hdcp2_dp_errata_stream_type stream_type_msg;
if (is_repeater)
@@ -6463,8 +6464,13 @@ int intel_dp_hdcp2_config_stream_type(struct intel_digital_port *intel_dig_port,
stream_type_msg.msg_id = HDCP_2_2_ERRATA_DP_STREAM_TYPE;
stream_type_msg.stream_type = content_type;
- return intel_dp_hdcp2_write_msg(intel_dig_port, &stream_type_msg,
+ ret = intel_dp_hdcp2_write_msg(intel_dig_port, &stream_type_msg,
sizeof(stream_type_msg));
+
+ if (ret == sizeof(stream_type_msg))
+ return 0;
+ else
+ return ret;
}
static
--
2.25.1
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