Add support to retrieve fixed voltage configure information through
ACPI interface. This is needed for Intel Bay Trail devices, where a
GPIO is used to control the USB vbus.
Signed-off-by: Lu Baolu
---
drivers/regulator/fixed.c | 46
In some Intel platforms, a single usb port is shared between USB host
and device controller. The shared port is under control of GPIO pins.
This patch adds the support for USB GPIO controlled port mux.
[baolu: removed .owner per platform_no_drv_owner.cocci]
[baolu: extcon usage reviewed by
Add a maintainer entry for Intel USB dual role mux drivers and
add myself as a maintainer.
Signed-off-by: Lu Baolu
---
MAINTAINERS | 10 ++
1 file changed, 10 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index ed1229e..edaeebe 100644
--- a/MAINTAINERS
Several Intel PCHs and SOCs have an internal mux that is used to
share one USB port between device controller and host controller.
The mux is handled through the Dual Role Configuration Register.
Signed-off-by: Heikki Krogerus
Signed-off-by: Lu Baolu
Several Intel platforms implement USB dual role by having completely
separate xHCI and dwc3 IPs in PCH or SOC silicons. These two IPs share
a single USB port. There is another external port mux which controls
where the data lines should go. While the USB controllers are part of
the silicon, the
Some Intel platforms have an USB port mux controlled by GPIOs.
There's a single ACPI platform device that provides 1) USB ID
extcon device; 2) USB vbus regulator device; and 3) USB port
switch device. This MFD driver will split these 3 devices for
their respective drivers.
[baolu: removed .owner
In some Intel platforms, a single usb port is shared between USB host
and device controllers. The shared port is under control of a switch
which is defined in the Intel vendor defined extended capability for
xHCI.
This patch adds the support to detect and create the platform device
for the port
Intel SOC chips are featured with USB dual role. The host role
is provided by Intel xHCI IP, and the gadget role is provided
by IP from designware. Tablet platform designs always share a
single port for both host and gadget controllers. There is a
mux to switch the port to the right controller
On Saturday 23 January 2016 13:57:32 Pali Rohár wrote:
> On Thursday 21 January 2016 20:21:13 Tony Lindgren wrote:
> > * joerg Reisenweber [160121 10:45]:
> > > On Thu 21 January 2016 09:41:46 Tony Lindgren wrote:
> > > > Then for supporting the USB host mode.. We should add