gpio: Add a reference to CEC on GPIO

Message ID 20180414094458.5700-1-linus.walleij@linaro.org
State New
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Series
  • gpio: Add a reference to CEC on GPIO
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Commit Message

Linus Walleij April 14, 2018, 9:44 a.m.
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@xs4all.nl>
Cc: linux-media@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/driver-api/gpio/drivers-on-gpio.rst | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Hans Verkuil April 14, 2018, 10:35 a.m. | #1
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@xs4all.nl>
> Cc: linux-media@vger.kernel.org
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>

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
> 

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Patch

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