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Some boards have a retimer/redriver between the SuperSpeed
PHY and the USB-C connector to compensates signal integrity
losses mainly due to PCB & transmission cables.
Add support for an optional retimer-switch in the USB-C
connector graph.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230601-topic-sm8550-upstream-type-c-v5-2-9221cd300903@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230714175142.4067795-1-robh@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
gcc with W=1 reports
drivers/soc/qcom/pmic_glink_altmode.c:223:13: error: variable ‘svid’ set but not used [-Werror=unused-but-set-variable]
223 | u16 svid;
From reviewing the code, the setting of alt_port->svid does the same calculation.
Both are not needed. For debuggablity, keep the setting of local svid.
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230206135831.1794583-1-trix@redhat.com
With the PMIC GLINK service, the host OS subscribes to USB-C altmode
messages, which are sent by the firmware to notify the host OS about
state updates and HPD interrupts.
The pmic_glink_altmode driver registers for these notifications and
propagates the notifications as typec_mux, typec_switch and DRM OOB
notifications as necessary to implement DisplayPort altmode support.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Konrad Dybcio <konrad.dybcio@linaro.org> # SM8350 PDX215
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-MTP & SM8450-HDK
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230201041853.1934355-4-quic_bjorande@quicinc.com
