This adds a pointer to the CEC GPIO driver from the GPIO list of examples of drivers on top of GPIO.
Cc: Hans Verkuil <hverk...@xs4all.nl> Cc: linux-media@vger.kernel.org Signed-off-by: Linus Walleij <linus.wall...@linaro.org> --- 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 -- 2.14.3
