On 04/14/2018 02:44 AM, Linus Walleij wrote: > This adds a pointer to the CEC GPIO driver from the GPIO list of > examples of drivers on top of GPIO. > > Cc: Hans Verkuil <hverkuil@xxxxxxxxx> > Cc: linux-media@xxxxxxxxxxxxxxx > Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> Thanks! Hans > --- > Documentation/driver-api/gpio/drivers-on-gpio.rst | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/driver-api/gpio/drivers-on-gpio.rst b/Documentation/driver-api/gpio/drivers-on-gpio.rst > index 7da0c1dd1f7a..f3a189320e11 100644 > --- a/Documentation/driver-api/gpio/drivers-on-gpio.rst > +++ b/Documentation/driver-api/gpio/drivers-on-gpio.rst > @@ -85,6 +85,10 @@ hardware descriptions such as device tree or ACPI: > any other serio bus to the system and makes it possible to connect drivers > for e.g. keyboards and other PS/2 protocol based devices. > > +- cec-gpio: drivers/media/platform/cec-gpio/ is used to interact with a CEC > + Consumer Electronics Control bus using only GPIO. It is used to communicate > + with devices on the HDMI bus. > + > Apart from this there are special GPIO drivers in subsystems like MMC/SD to > read card detect and write protect GPIO lines, and in the TTY serial subsystem > to emulate MCTRL (modem control) signals CTS/RTS by using two GPIO lines. The >
