Document the new device tree parameters for Tegra30 USB PHY.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The device tree binding documentation for tegra20-usb-phy used to claim
that the vbus-supply property is required for host phys and optional
for otg phys. This should be the other way around.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Document vbus-supply as an optional property for host mode phy-tegra-usb PHYs.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The existing Tegra USB bindings have a few issues:
1) Many properties are documented as being part of the EHCI controller
node, yet they apply more to the PHY device. They should be moved.
2) Some registers in PHY1 are shared with PHY3, and hence PHY3 needs a
reg entry to point at PHY1's register space. We can't assume the PHY1
driver is present, so the PHY3 driver will directly access those
registers.
3) The list of clocks required by the PHY was missing some required
entries.
4) UTMI PHY Timing parameters are added
5) VBUS control is now specified using a regulator rather than a plain GPIO
6) Added nvidia,is-wired property to indicate whether the device is
hard wired on the board, or pluggable.
This patch fixes the binding definition to resolve these issues.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
As reset GPIO information is PHY specific detail, adding
it to PHY DT node.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Add DT nodes for Tegra USB PHY along with related documentation.
Also added a phandle property to controller DT node, for referring
to connected PHY instance.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
