If an aux transaction fails at its lowest level, there is a builtin
retry mechanism before erroring out. Currently an error message is
printed after each failed attempt even though the aux transaction
might succeed on retry.
This change switches the alert level to warning on these attempts
and makes sure an error message is printed if the transfer errors
out after retries.
Change-Id: I47fb27fe0aa15eb5e2400c4338f9b9c59439983f
Signed-off-by: Rajkumar Subbiah <quic_rsubbia@quicinc.com>
Currently, the max voltage swing supported is level 2. This change
adds support for voltage swing level 3 in the dp driver.
Change-Id: Idf1dbb4e74edff924067130a5edea869f392bf38
Signed-off-by: Sudarsan Ramesh <sudarame@codeaurora.org>
On the latest kernel, several drm_dp_link functions were removed.
This change moves the functions needed downstream.
Change-Id: I0a76c52edff450d8bd33edffb9da41c1933b9681
Signed-off-by: Samantha Tran <samtran@codeaurora.org>
Signed-off-by: Nilaan Gunabalachandran <ngunabal@codeaurora.org>
Decrease the log level for messages that are typically printed from a
real time thread execution environment (such as the display commit
thread). This can help with cases where a console lock held during the
execution of these real time threads can result in RT throttling issues.
Change-Id: I41e1e4f171b5eee9966d8a7d26d64430a81bc6fc
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
Current implementation checks for loss of channel equilization
or clock recovery only if the sink sets the link status updated
bit in the DPCD. However, it is possible that the sink can issue
an IRQ HPD to notify a link loss without setting the link status
updated field. Update the implementation to perform a link
maintenance whenever clock recovery or channel equalization is not
ok irrespective of whether the link status updated bit is set.
Change-Id: I2d765236b1e8ddae3c410087406546d0422cdf07
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
Return immediately after releasing the lock if the connect event
has already been processed.
Change-Id: I80552b4c569d436ec85a945f4ddc3d389e3af43f
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
Add the colorspace property for DP controller for MSM. Also, change
the default method to send the colorimetry information to the sink
from MISC bits of MSA to VSC SDP packets if the sink supports it. This
helps to avoid dynamic switches between the packet types for sending
the colorimetry information during BT2020 and DCI-P3 use-cases.
Change-Id: I7ddf879a187b023fcf7404d64028e4d19b031119
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Adding prefixes for error, debug and info
messages in dp files. To enable debug logs
run "echo 0x100 > /sys/module/drm/parameters/debug"
CRs-Fixed: 2493739
Change-Id: Ibf509e837f527be6bff6b7a1c34b0cde2921b388
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>
Update the link training process along with the AUX
communications during link training as per hardware
recommendations.
Update the pre-emphasis and swing values for active
lanes only instead of all lanes.
During link training, update pre-emphasis and swing
values in hardware first and then update sink.
CRs-Fixed: 2458753
Change-Id: Ie05c9d6508b0c564b194032ae4ebb1bc5550e7b8
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
This change brings msm display driver including sde,
dp, dsi, rotator, dsi pll and dp pll from base 4.19 kernel
project. It is first source code snapshot from base kernel project.
Change-Id: Iec864c064ce5ea04e170f24414c728684002f284
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
