[PATCH 0/2] cec.txt: document common cec bindings

[PATCH 0/2] cec.txt: document common cec bindings

[Hans Verkuil]

From: Hans Verkuil <hans.verkuil@cisco.com>

As requested by Rob Herring.

Sits on top of the earlier "cec improvements" patch series:

http://www.spinics.net/lists/dri-devel/msg143377.html

Regards,

	Hans

Hans Verkuil (2):
  dt-bindings: add media/cec.txt
  dt-bindings: media/s5p-cec.txt, media/stih-cec.txt: refer to cec.txt

 Documentation/devicetree/bindings/media/cec.txt      | 8 ++++++++
 Documentation/devicetree/bindings/media/s5p-cec.txt  | 6 ++----
 Documentation/devicetree/bindings/media/stih-cec.txt | 2 +-
 MAINTAINERS                                          | 1 +
 4 files changed, 12 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/cec.txt

-- 
2.11.0

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[PATCH 1/2] dt-bindings: add media/cec.txt

[Hans Verkuil]

From: Hans Verkuil <hans.verkuil@cisco.com>

Document common HDMI CEC bindings. Add this to the MAINTAINERS file
as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: devicetree@vger.kernel.org
---
 Documentation/devicetree/bindings/media/cec.txt | 8 ++++++++
 MAINTAINERS                                     | 1 +
 2 files changed, 9 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/cec.txt

diff --git a/Documentation/devicetree/bindings/media/cec.txt b/Documentation/devicetree/bindings/media/cec.txt
new file mode 100644
index 000000000000..22d7aae3d3d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/cec.txt
@@ -0,0 +1,8 @@
+Common bindings for HDMI CEC adapters
+
+- hdmi-phandle: phandle to the HDMI controller.
+
+- needs-hpd: if present the CEC support is only available when the HPD
+  is high. Some boards only let the CEC pin through if the HPD is high,
+  for example if there is a level converter that uses the HPD to power
+  up or down.
diff --git a/MAINTAINERS b/MAINTAINERS
index 053c3bdd1fe5..4ac340d189a3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3137,6 +3137,7 @@ F:	include/media/cec.h
 F:	include/media/cec-notifier.h
 F:	include/uapi/linux/cec.h
 F:	include/uapi/linux/cec-funcs.h
+F:	Documentation/devicetree/bindings/media/cec.txt
 
 CELL BROADBAND ENGINE ARCHITECTURE
 M:	Arnd Bergmann <arnd@arndb.de>
-- 
2.11.0

Re: [PATCH 1/2] dt-bindings: add media/cec.txt

[Benjamin Gaignard]

2017-06-09 19:54 GMT+02:00 Hans Verkuil <hverkuil-qWit8jRvyhVmR6Xm/wNWPw@public.gmane.org>:
> From: Hans Verkuil <hans.verkuil-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
>
> Document common HDMI CEC bindings. Add this to the MAINTAINERS file
> as well.
>
> Signed-off-by: Hans Verkuil <hans.verkuil-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
> Cc: Krzysztof Kozlowski <krzk-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Andrzej Hajda <a.hajda-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> Cc: Benjamin Gaignard <benjamin.gaignard-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> ---
>  Documentation/devicetree/bindings/media/cec.txt | 8 ++++++++
>  MAINTAINERS                                     | 1 +
>  2 files changed, 9 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/cec.txt
>
> diff --git a/Documentation/devicetree/bindings/media/cec.txt b/Documentation/devicetree/bindings/media/cec.txt
> new file mode 100644
> index 000000000000..22d7aae3d3d7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/cec.txt
> @@ -0,0 +1,8 @@
> +Common bindings for HDMI CEC adapters
> +
> +- hdmi-phandle: phandle to the HDMI controller.
> +
> +- needs-hpd: if present the CEC support is only available when the HPD
> +  is high. Some boards only let the CEC pin through if the HPD is high,
> +  for example if there is a level converter that uses the HPD to power
> +  up or down.
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 053c3bdd1fe5..4ac340d189a3 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3137,6 +3137,7 @@ F:        include/media/cec.h
>  F:     include/media/cec-notifier.h
>  F:     include/uapi/linux/cec.h
>  F:     include/uapi/linux/cec-funcs.h
> +F:     Documentation/devicetree/bindings/media/cec.txt
>
>  CELL BROADBAND ENGINE ARCHITECTURE
>  M:     Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
> --
> 2.11.0
>

Looks good for me

Acked-by: Benjamin Gaignard <benjamin.gaignard-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
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Re: [PATCH 1/2] dt-bindings: add media/cec.txt

[Sylwester Nawrocki]

On 06/09/2017 07:54 PM, Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
> 
> Document common HDMI CEC bindings. Add this to the MAINTAINERS file
> as well.
> 
> Signed-off-by: Hans Verkuil <hans.verkuil-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>

Acked-by: Sylwester Nawrocki <s.nawrocki-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>

> ---
>   Documentation/devicetree/bindings/media/cec.txt | 8 ++++++++
>   MAINTAINERS                                     | 1 +
>   2 files changed, 9 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/media/cec.txt
> 
> diff --git a/Documentation/devicetree/bindings/media/cec.txt b/Documentation/devicetree/bindings/media/cec.txt
> new file mode 100644
> index 000000000000..22d7aae3d3d7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/cec.txt
> @@ -0,0 +1,8 @@
> +Common bindings for HDMI CEC adapters
> +
> +- hdmi-phandle: phandle to the HDMI controller.

For a common property I would rather make it "hdmi-controller", this
"-phandle" part feels like appending "_pointer" to variable names in C code.
But since you are just rearranging existing documentation and Rob agrees with
that I have no objections.

> +- needs-hpd: if present the CEC support is only available when the HPD
> +  is high. Some boards only let the CEC pin through if the HPD is high,
> +  for example if there is a level converter that uses the HPD to power
> +  up or down.
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 053c3bdd1fe5..4ac340d189a3 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3137,6 +3137,7 @@ F:	include/media/cec.h
>   F:	include/media/cec-notifier.h
>   F:	include/uapi/linux/cec.h
>   F:	include/uapi/linux/cec-funcs.h
> +F:	Documentation/devicetree/bindings/media/cec.txt
>   
>   CELL BROADBAND ENGINE ARCHITECTURE
>   M:	Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org
--
Regards,
Sylwester
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Re: [PATCH 1/2] dt-bindings: add media/cec.txt

[Rob Herring]

On Fri, Jun 9, 2017 at 12:54 PM, Hans Verkuil <hverkuil@xs4all.nl> wrote:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Document common HDMI CEC bindings. Add this to the MAINTAINERS file
> as well.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Cc: Andrzej Hajda <a.hajda@samsung.com>
> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
> Cc: devicetree@vger.kernel.org
> ---
>  Documentation/devicetree/bindings/media/cec.txt | 8 ++++++++
>  MAINTAINERS                                     | 1 +
>  2 files changed, 9 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/cec.txt

Reviewed-by: Rob Herring <robh@kernel.org>

Thanks for doing this.

Rob
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[PATCH 2/2] dt-bindings: media/s5p-cec.txt, media/stih-cec.txt: refer to cec.txt

[Hans Verkuil]

From: Hans Verkuil <hans.verkuil-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>

Now that there is a cec.txt with common CEC bindings, update the two
driver-specific bindings to refer to cec.txt.

Signed-off-by: Hans Verkuil <hans.verkuil-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Krzysztof Kozlowski <krzk-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Andrzej Hajda <a.hajda-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: Benjamin Gaignard <benjamin.gaignard-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---
 Documentation/devicetree/bindings/media/s5p-cec.txt  | 6 ++----
 Documentation/devicetree/bindings/media/stih-cec.txt | 2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/s5p-cec.txt b/Documentation/devicetree/bindings/media/s5p-cec.txt
index 261af4d1a791..1b1a10ba48ce 100644
--- a/Documentation/devicetree/bindings/media/s5p-cec.txt
+++ b/Documentation/devicetree/bindings/media/s5p-cec.txt
@@ -15,13 +15,11 @@ Required properties:
   - clock-names : from common clock binding: must contain "hdmicec",
 		  corresponding to entry in the clocks property.
   - samsung,syscon-phandle - phandle to the PMU system controller
-  - hdmi-phandle - phandle to the HDMI controller
+  - hdmi-phandle - phandle to the HDMI controller, see also cec.txt.
 
 Optional:
   - needs-hpd : if present the CEC support is only available when the HPD
-    is high. Some boards only let the CEC pin through if the HPD is high, for
-    example if there is a level converter that uses the HPD to power up
-    or down.
+		is high. See cec.txt for more details.
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/media/stih-cec.txt b/Documentation/devicetree/bindings/media/stih-cec.txt
index 289a08b33651..8be2a040c6c6 100644
--- a/Documentation/devicetree/bindings/media/stih-cec.txt
+++ b/Documentation/devicetree/bindings/media/stih-cec.txt
@@ -9,7 +9,7 @@ Required properties:
  - pinctrl-names: Contains only one value - "default"
  - pinctrl-0: Specifies the pin control groups used for CEC hardware.
  - resets: Reference to a reset controller
- - hdmi-phandle: Phandle to the HDMI controller
+ - hdmi-phandle: Phandle to the HDMI controller, see also cec.txt.
 
 Example for STIH407:
 
-- 
2.11.0

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Re: [PATCH 2/2] dt-bindings: media/s5p-cec.txt, media/stih-cec.txt: refer to cec.txt

[Benjamin Gaignard]

2017-06-09 19:54 GMT+02:00 Hans Verkuil <hverkuil@xs4all.nl>:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Now that there is a cec.txt with common CEC bindings, update the two
> driver-specific bindings to refer to cec.txt.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Cc: Andrzej Hajda <a.hajda@samsung.com>
> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
> Cc: devicetree@vger.kernel.org
> ---
>  Documentation/devicetree/bindings/media/s5p-cec.txt  | 6 ++----
>  Documentation/devicetree/bindings/media/stih-cec.txt | 2 +-
>  2 files changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/media/s5p-cec.txt b/Documentation/devicetree/bindings/media/s5p-cec.txt
> index 261af4d1a791..1b1a10ba48ce 100644
> --- a/Documentation/devicetree/bindings/media/s5p-cec.txt
> +++ b/Documentation/devicetree/bindings/media/s5p-cec.txt
> @@ -15,13 +15,11 @@ Required properties:
>    - clock-names : from common clock binding: must contain "hdmicec",
>                   corresponding to entry in the clocks property.
>    - samsung,syscon-phandle - phandle to the PMU system controller
> -  - hdmi-phandle - phandle to the HDMI controller
> +  - hdmi-phandle - phandle to the HDMI controller, see also cec.txt.
>
>  Optional:
>    - needs-hpd : if present the CEC support is only available when the HPD
> -    is high. Some boards only let the CEC pin through if the HPD is high, for
> -    example if there is a level converter that uses the HPD to power up
> -    or down.
> +               is high. See cec.txt for more details.
>
>  Example:
>
> diff --git a/Documentation/devicetree/bindings/media/stih-cec.txt b/Documentation/devicetree/bindings/media/stih-cec.txt
> index 289a08b33651..8be2a040c6c6 100644
> --- a/Documentation/devicetree/bindings/media/stih-cec.txt
> +++ b/Documentation/devicetree/bindings/media/stih-cec.txt
> @@ -9,7 +9,7 @@ Required properties:
>   - pinctrl-names: Contains only one value - "default"
>   - pinctrl-0: Specifies the pin control groups used for CEC hardware.
>   - resets: Reference to a reset controller
> - - hdmi-phandle: Phandle to the HDMI controller
> + - hdmi-phandle: Phandle to the HDMI controller, see also cec.txt.
>
>  Example for STIH407:
>
> --
> 2.11.0
>

Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>

Re: [PATCH 2/2] dt-bindings: media/s5p-cec.txt, media/stih-cec.txt: refer to cec.txt

[Sylwester Nawrocki]

On 06/12/2017 02:51 PM, Benjamin Gaignard wrote:
> 2017-06-09 19:54 GMT+02:00 Hans Verkuil <hverkuil@xs4all.nl>:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Now that there is a cec.txt with common CEC bindings, update the two
> driver-specific bindings to refer to cec.txt.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>

-- 
Thanks,
Sylwester

Re: [PATCH 2/2] dt-bindings: media/s5p-cec.txt, media/stih-cec.txt: refer to cec.txt

[Rob Herring]

On Fri, Jun 9, 2017 at 12:54 PM, Hans Verkuil <hverkuil@xs4all.nl> wrote:
> From: Hans Verkuil <hans.verkuil@cisco.com>
>
> Now that there is a cec.txt with common CEC bindings, update the two
> driver-specific bindings to refer to cec.txt.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Cc: Andrzej Hajda <a.hajda@samsung.com>
> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
> Cc: devicetree@vger.kernel.org
> ---
>  Documentation/devicetree/bindings/media/s5p-cec.txt  | 6 ++----
>  Documentation/devicetree/bindings/media/stih-cec.txt | 2 +-
>  2 files changed, 3 insertions(+), 5 deletions(-)

Reviewed-by: Rob Herring <robh@kernel.org>
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