ARM: dt: tegra trimslice: add vbus-gpio property
On TrimSlice, Tegra's USB1 port may be routed to either an external micro USB port, or an internal USB->SATA bridge for SSD or HDD. This muxing is controlled by a GPIO. Whilst not strictly a VBUS GPIO, the TrimSlice board files caused this GPIO to be set appropriately to enable the SATA bridge by passing it as the VBUS GPIO to the USB driver. Echo this same configuration in device tree to enable the SATA bridge. An alternative might be to implement a full USB bus mux driver. However, that seems over-complex right now. Cc: <stable@vger.kernel.org> # v3.5 (file is named tegra-trimslice.dts there) Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
parent
04529fe2a2
commit
01ad8063a5
|
@ -276,6 +276,7 @@
|
|||
|
||||
usb@c5000000 {
|
||||
status = "okay";
|
||||
nvidia,vbus-gpio = <&gpio 170 0>; /* gpio PV2 */
|
||||
};
|
||||
|
||||
usb@c5004000 {
|
||||
|
|
Loading…
Reference in a new issue