kernel/linux.git/drivers/gpu/drm/amd/display/modules/hdcp, branch v5.12.1

drm/amd/display: DP HDCP Compliance 1A-08/09 tests fail

2021-02-09T20:31:00+00:00

[Why] Current implementation of mod_hdcp_hdcp2_validate_ake_cert() does not process HDCP status message TA_HDCP2_MSG_AUTHENTICATION_STATUS__SIGNATURE_CERTIFICAT_ERROR. As a result, when there is a signature certificate error, mod_hdcp_hdcp2_validate_ake_cert would return the default status, which is success. [How] For all messages other than TA_HDCP2_MSG_AUTHENTICATION_STATUS__SUCCESS and TA_HDCP2_MSG_AUTHENTICATION_STATUS__RECEIVERID_REVOKED, return status as failure. Signed-off-by: Qingqing Zhuo Reviewed-by: Bhawanpreet Lakha Acked-by: Anson Jacob Signed-off-by: Alex Deucher

drm/amd/display: correct some hdcp variable naming

2021-02-02T17:09:09+00:00

[why] In HDCP update stream config interface, some variables are named as xxx_supported, but in fact the variable indicates whether or not xxx_enabled. Correct the naming so it is less confusing to read the code. Signed-off-by: Wenjing Liu Reviewed-by: George Shen Acked-by: Anson Jacob Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Modify the hdcp device count check condition

2020-12-23T20:01:34+00:00

[why] Some MST display may not report the internal panel to DEVICE_COUNT, that makes the check condition always failed. [how] To update this condition with the reported device count + 1 (because the immediate repeater's internal panel is possibly not included in DEVICE_COUNT) Signed-off-by: Martin Tsai Acked-by: Bindu Ramamurthy Signed-off-by: Alex Deucher

drm/amd/display: set hdcp1 wa re-auth delay to 200ms

2020-11-02T20:32:03+00:00

[Why] Fail and restart timing for HDCP1 retry occurs too quickly. This would cause some MST monitors to show black screen. [How] Adjusted timing of fail and restart to 200ms. Signed-off-by: Jake Wang Reviewed-by: Wenjing Liu Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher

drm/amd/display: remove unneeded semicolon

2020-10-30T05:03:02+00:00

A semicolon is not needed after a switch statement. Signed-off-by: Tom Rix Signed-off-by: Alex Deucher

drm/amd/display: Don't log hdcp module warnings in dmesg

2020-09-17T21:56:47+00:00

[Why] DTM topology updates happens by default now. This results in DTM warnings when hdcp is not even being enabled. This spams the dmesg and doesn't effect normal display functionality so it is better to log it using DRM_DEBUG_KMS() [How] Change the DRM_WARN() to DRM_DEBUG_KMS() Signed-off-by: Bhawanpreet Lakha Acked-by: Alex Deucher Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Don't use DRM_ERROR() for DTM add topology

2020-09-15T21:52:41+00:00

[Why] Previously we were only calling add_topology when hdcp was being enabled. Now we call add_topology by default so the ERROR messages are printed if the firmware is not loaded. This error message is not relevant for normal display functionality so no need to print a ERROR message. [How] Change DRM_ERROR to DRM_INFO Signed-off-by: Bhawanpreet Lakha Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: Fix CP_IRQ clear bit and logic

2020-09-15T21:52:40+00:00

[Why] Currently clearing the wrong bit for CP_IRQ, and logic on when to clear needs to be fixed. [How] Corrected bit to clear and improved logic for decision to clear. Signed-off-by: Harmanprit Tatla Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: Add CP_IRQ clear capability

2020-09-15T21:52:40+00:00

[Why] Currently we do not clear the CP_IRQ bit upon receiving it. [How] Added a function to clear CP_IRQ bit. Signed-off-by: Harmanprit Tatla Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amd/display: fix typo

2020-04-09T14:43:16+00:00

[why] MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION and MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION were supposed to be MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION_FAILURE and MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE. Because of this it always seems like mod_hdcp_hdcp1_enable_encryption and mod_hdcp_hdcp2_enable_encryption are always passing [how] rename the elements to what they were supposed to be called Signed-off-by: Joseph Gravenor Reviewed-by: Wenjing Liu Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher