Document support for the USB20 phy found on the ExynosAutov920 SoC. The
USB20 phy is functionally identical to that on the Exynos850 SoC, so no
driver changes are needed to support this phy. However, add a dedicated
compatible string for USB20 phy found in this SoC.
This phy needs 0.75v, 0.18v and 3.3v supplies for its internal
functionally. Power Supply's names are as per phy's User Data-Book.
These names, (dvdd, vdd18 and vdd33), are considered for 0.75v, 1.8v
and 3.3v respectively.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Pritam Manohar Sutar <pritam.sutar@samsung.com>
Link: https://patch.msgid.link/20251124110453.2887437-2-pritam.sutar@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The ports definition currently defined in the usb-switch.yaml
fits standards devices which are either recipient of altmode
muxing and orientation switching events or an element of the
USB Super Speed data lanes.
This doesn't necessarely fit combo PHYs like the Qualcomm
USB3/DP Combo which has a different ports representation.
Move the ports definition to a separate usb-switch-ports.yaml
and reference it next to the usb-switch.yaml, except for
the Qualcomm USB3/DP Combo PHY bindings.
Reported-by: Rob Herring <robh@kernel.org>
Closes: https://lore.kernel.org/all/175462129176.394940.16810637795278334342.robh@kernel.org/
Fixes: 3bad7fe227 ("dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Reference usb-switch.yaml to allow mode-switch")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
orientation-switch is the standard declaration to inform the Type-C mux
layer that a remote-endpoint is capable of processing orientation
change messages.
The USB PHY on gs101 needs to be configured based on the orientation of
the connector. For that the DTS needs a link between the phy's port and
a TCPCi, and we'll need to inform the phy driver that it should handle
the orientation (register a handler).
Update the schema to enforce that by requiring the orientation-switch
and port properties on gs101 (only). We disallow orientation-switch on
all other supported platforms, since other versions of this phy (or its
system integration) don't currently support or even need it.
Even though this new required gs101 property is an ABI break, the
intention for the driver is to behave as before if it's missing
(meaning for gs101 it will work in SS mode in one orientation only).
Other platforms are not affected.
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Tested-by: Will McVicker <willmcvicker@google.com>
Link: https://lore.kernel.org/r/20241206-gs101-phy-lanes-orientation-phy-v4-2-f5961268b149@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Add a dedicated google,gs101-usb31drd-phy compatible for Google Tensor
gs101 SoC.
It needs additional clocks enabled for register access, and additional
memory regions (PCS & PMA) are required for successful configuration.
It also requires various power supplies (regulators) for the internal
circuitry to work. The required voltages are:
* pll-supply: 0.85V
* dvdd-usb20-supply: 0.85V (+10%, -7%)
* vddh-usb20-supply: 1.8V (+10%, -7%)
* vdd33-usb20-supply: 3.3V (+10%, -7%)
* vdda-usbdp-supply: 0.85V
* vddh-usbdp-supply: 1.8V
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20240617-usb-phy-gs101-v3-1-b66de9ae7424@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
