On Wed, 12 Feb 2020 14:11:31 +0800, JC Kuo wrote: > Extend the bindings to cover the set of features found in Tegra194. > Note that, technically, there are four more supplies connected to the > XUSB pad controller (DVDD_PEX, DVDD_PEX_PLL, HVDD_PEX and HVDD_PEX_PLL) > , but the power sequencing requirements of Tegra194 require these to be > under the control of the PMIC. > > Tegra194 XUSB PADCTL supports up to USB 3.1 Gen 2 speed, however, it > is possible for some platforms have long signal trace that could not > provide sufficient electrical environment for Gen 2 speed. This patch > adds a "maximum-speed" property to usb3 ports which can be used to > specify the maximum supported speed for any particular USB 3.1 port. > For a port that is not capable of SuperSpeedPlus, "maximum-speed" > property should carry "super-speed". > > Signed-off-by: JC Kuo <jckuo@xxxxxxxxxx> > --- > Changes in v6: none > Changes in v5: > - re-use "maximum-speed" instead of adding "nvidia,disable-gen2" > Changes in v4: none > Changes in v3: none > Changes in v2: > - fix a typo > > .../phy/nvidia,tegra124-xusb-padctl.txt | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > Acked-by: Rob Herring <robh@xxxxxxxxxx>
