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[Why]
HDCP is a bit finicky so we try it 3 times, this leads to a case where
if we fail the first time and pass the second time the error is still
shown in dmesg for the first failed attempt.
This leads to false positive errors.
[How]
Change the logging from ERROR to WARNING. Warnings are still shown in dmesg
to know what went wrong.
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[Why]
We need to log the state changes for 2.2
This patch extends the existing logging functions to handle
HDCP2.2.
[How]
We do this by adding if/else in the defines, and output the log
based on the hdcp version
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This module manages HDCP for amdgpu driver. The module behaves as a
state machine which handles the different authentication states of HDCP
The module is divided into 3 major components
+--------+
| Hdcp.c |
+--------+
Manages the state machine, sends the events to be executed and communicates
with the dm
+-----------+
|Execution.c|
+-----------+
This executes events based on the current state. Also generates
execution results as transition inputs
+------------+
|Transition.c|
+------------+
Decides the next state based on the input and makes requests to
hdcp.c to handle.
+-------------+
------> | Execution.c | ------
| +-------------+ |
| V
+----+ +--------+ +--------------+
| DM | -----> | Hdcp.c | <------------ | Transition.c |
+----+ <----- +--------+ +--------------+
v2: Drop unused function definitions
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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