RE: [PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio

[Venkat Reddy Talla]

Thanks for review, please find my inline reply.

> -Original Message-
> From: Rob Herring [mailto:r...@kernel.org]
> Sent: Wednesday, May 04, 2016 7:01 PM
> To: Venkat Reddy Talla
> Cc: MyungJoo Ham; Chanwoo Choi; Pawel Moll; Mark Rutland; Ian Campbell;
> Kumar Gala; linux-kernel@vger.kernel.org; devicet...@vger.kernel.org;
> Laxman Dewangan
> Subject: Re: [PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio
> 
> On Tue, May 03, 2016 at 11:19:51AM +0530, Venkat Reddy Talla wrote:
> > Addiing DT binding doc for the extcon gpios properties.
> >
> > Signed-off-by: Venkat Reddy Talla <vreddyta...@nvidia.com>
> > ---
> >  .../devicetree/bindings/extcon/extcon-gpio.txt| 19
> +++
> >  1 file changed, 19 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> >
> > diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> > b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> > new file mode 100644
> > index 000..4a49c23
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> > @@ -0,0 +1,19 @@
> > +EXTCON FOR GPIO
> 
> This needs a better description of what this is and what h/w this applies to.
> 
I will take care in my next patch.

> > +
> > +Required Properties:
> > + - compatible : Should be "extcon-gpio";
> > +
> > +Optional Properties:
> > + - extcon-gpio,name: Name of extcon device.
> > + - gpio: gpio number.
> 
> Should be 'gpios'.
> 
OK, I will take care in my next patch.

> > + - extcon-gpio,irq-flags: IRQ flags for GPIO.
> 
> If this is an interrupt, then you should be using the interrupts property.
> 
Need to provide GPIO number instead of interrupt from DTS to read GPIO value 
when external connected attached/detached and also driver supports platform 
data with passing GPIO number.
So need to pass irq-flags using separate dts property or need to hardcode in 
driver.

> > + - extcon-gpio,debounce: Debounce time in ms.
> 
> extcon-gpio is not a vendor prefix, so drop it.
> 
> Add unit suffix (-ms).
> 
OK, I will take care in my next patch.

> > + - extcon-gpio,connection-state-low: boolean, Connection state with
> > +gpio state. True if gpio low means connected.
> 
> The active state should be in the GPIO flags cell.
> 
OK, I will take care in my next patch.
> > +
> > +extcon-gpio {
> > +   compatible = "extcon-gpio";
> > +extcon-gpio,name = "VBUS";
> 
> How is VBus a gpio?
> 
Here VBUS is not gpio number, VBUS is extcon device name, extcon gpio is used 
to detect VBUS.

> > +   gpio = < 20 0>;
> > +   extcon-gpio,cable-names = ;
> 
> Not documented.
> 
> Rob
OK, I will take care in my next patch.

RE: [PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio

[Venkat Reddy Talla]

Thanks for review, please find my inline reply.

> -Original Message-
> From: Rob Herring [mailto:r...@kernel.org]
> Sent: Wednesday, May 04, 2016 7:01 PM
> To: Venkat Reddy Talla
> Cc: MyungJoo Ham; Chanwoo Choi; Pawel Moll; Mark Rutland; Ian Campbell;
> Kumar Gala; linux-kernel@vger.kernel.org; devicet...@vger.kernel.org;
> Laxman Dewangan
> Subject: Re: [PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio
> 
> On Tue, May 03, 2016 at 11:19:51AM +0530, Venkat Reddy Talla wrote:
> > Addiing DT binding doc for the extcon gpios properties.
> >
> > Signed-off-by: Venkat Reddy Talla 
> > ---
> >  .../devicetree/bindings/extcon/extcon-gpio.txt| 19
> +++
> >  1 file changed, 19 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> >
> > diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> > b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> > new file mode 100644
> > index 000..4a49c23
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> > @@ -0,0 +1,19 @@
> > +EXTCON FOR GPIO
> 
> This needs a better description of what this is and what h/w this applies to.
> 
I will take care in my next patch.

> > +
> > +Required Properties:
> > + - compatible : Should be "extcon-gpio";
> > +
> > +Optional Properties:
> > + - extcon-gpio,name: Name of extcon device.
> > + - gpio: gpio number.
> 
> Should be 'gpios'.
> 
OK, I will take care in my next patch.

> > + - extcon-gpio,irq-flags: IRQ flags for GPIO.
> 
> If this is an interrupt, then you should be using the interrupts property.
> 
Need to provide GPIO number instead of interrupt from DTS to read GPIO value 
when external connected attached/detached and also driver supports platform 
data with passing GPIO number.
So need to pass irq-flags using separate dts property or need to hardcode in 
driver.

> > + - extcon-gpio,debounce: Debounce time in ms.
> 
> extcon-gpio is not a vendor prefix, so drop it.
> 
> Add unit suffix (-ms).
> 
OK, I will take care in my next patch.

> > + - extcon-gpio,connection-state-low: boolean, Connection state with
> > +gpio state. True if gpio low means connected.
> 
> The active state should be in the GPIO flags cell.
> 
OK, I will take care in my next patch.
> > +
> > +extcon-gpio {
> > +   compatible = "extcon-gpio";
> > +extcon-gpio,name = "VBUS";
> 
> How is VBus a gpio?
> 
Here VBUS is not gpio number, VBUS is extcon device name, extcon gpio is used 
to detect VBUS.

> > +   gpio = < 20 0>;
> > +   extcon-gpio,cable-names = ;
> 
> Not documented.
> 
> Rob
OK, I will take care in my next patch.

Re: [PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio

[Rob Herring]

On Tue, May 03, 2016 at 11:19:51AM +0530, Venkat Reddy Talla wrote:
> Addiing DT binding doc for the extcon gpios properties.
> 
> Signed-off-by: Venkat Reddy Talla 
> ---
>  .../devicetree/bindings/extcon/extcon-gpio.txt| 19 
> +++
>  1 file changed, 19 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> 
> diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt 
> b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> new file mode 100644
> index 000..4a49c23
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> @@ -0,0 +1,19 @@
> +EXTCON FOR GPIO

This needs a better description of what this is and what h/w this 
applies to.

> +
> +Required Properties:
> + - compatible : Should be "extcon-gpio";
> +
> +Optional Properties:
> + - extcon-gpio,name: Name of extcon device.
> + - gpio: gpio number.

Should be 'gpios'.

> + - extcon-gpio,irq-flags: IRQ flags for GPIO.

If this is an interrupt, then you should be using the interrupts 
property.

> + - extcon-gpio,debounce: Debounce time in ms.

extcon-gpio is not a vendor prefix, so drop it.

Add unit suffix (-ms).

> + - extcon-gpio,connection-state-low: boolean, Connection state with
> +gpio state. True if gpio low means connected.

The active state should be in the GPIO flags cell.

> +
> +extcon-gpio {
> + compatible = "extcon-gpio";
> +extcon-gpio,name = "VBUS";

How is VBus a gpio?

> + gpio = < 20 0>;
> + extcon-gpio,cable-names = ;

Not documented.

Rob

Re: [PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio

[Rob Herring]

On Tue, May 03, 2016 at 11:19:51AM +0530, Venkat Reddy Talla wrote:
> Addiing DT binding doc for the extcon gpios properties.
> 
> Signed-off-by: Venkat Reddy Talla 
> ---
>  .../devicetree/bindings/extcon/extcon-gpio.txt| 19 
> +++
>  1 file changed, 19 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> 
> diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt 
> b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> new file mode 100644
> index 000..4a49c23
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
> @@ -0,0 +1,19 @@
> +EXTCON FOR GPIO

This needs a better description of what this is and what h/w this 
applies to.

> +
> +Required Properties:
> + - compatible : Should be "extcon-gpio";
> +
> +Optional Properties:
> + - extcon-gpio,name: Name of extcon device.
> + - gpio: gpio number.

Should be 'gpios'.

> + - extcon-gpio,irq-flags: IRQ flags for GPIO.

If this is an interrupt, then you should be using the interrupts 
property.

> + - extcon-gpio,debounce: Debounce time in ms.

extcon-gpio is not a vendor prefix, so drop it.

Add unit suffix (-ms).

> + - extcon-gpio,connection-state-low: boolean, Connection state with
> +gpio state. True if gpio low means connected.

The active state should be in the GPIO flags cell.

> +
> +extcon-gpio {
> + compatible = "extcon-gpio";
> +extcon-gpio,name = "VBUS";

How is VBus a gpio?

> + gpio = < 20 0>;
> + extcon-gpio,cable-names = ;

Not documented.

Rob

[PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio

[Venkat Reddy Talla]

Addiing DT binding doc for the extcon gpios properties.

Signed-off-by: Venkat Reddy Talla 
---
 .../devicetree/bindings/extcon/extcon-gpio.txt| 19 +++
 1 file changed, 19 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/extcon/extcon-gpio.txt

diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt 
b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
new file mode 100644
index 000..4a49c23
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
@@ -0,0 +1,19 @@
+EXTCON FOR GPIO
+
+Required Properties:
+ - compatible : Should be "extcon-gpio";
+
+Optional Properties:
+ - extcon-gpio,name: Name of extcon device.
+ - gpio: gpio number.
+ - extcon-gpio,irq-flags: IRQ flags for GPIO.
+ - extcon-gpio,debounce: Debounce time in ms.
+ - extcon-gpio,connection-state-low: boolean, Connection state with
+gpio state. True if gpio low means connected.
+
+extcon-gpio {
+   compatible = "extcon-gpio";
+extcon-gpio,name = "VBUS";
+   gpio = < 20 0>;
+   extcon-gpio,cable-names = ;
+};
-- 
2.1.4

[PATCH 2/2] extcon: gpio: add DT binding doc for extcon-gpio

[Venkat Reddy Talla]

Addiing DT binding doc for the extcon gpios properties.

Signed-off-by: Venkat Reddy Talla 
---
 .../devicetree/bindings/extcon/extcon-gpio.txt| 19 +++
 1 file changed, 19 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/extcon/extcon-gpio.txt

diff --git a/Documentation/devicetree/bindings/extcon/extcon-gpio.txt 
b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
new file mode 100644
index 000..4a49c23
--- /dev/null
+++ b/Documentation/devicetree/bindings/extcon/extcon-gpio.txt
@@ -0,0 +1,19 @@
+EXTCON FOR GPIO
+
+Required Properties:
+ - compatible : Should be "extcon-gpio";
+
+Optional Properties:
+ - extcon-gpio,name: Name of extcon device.
+ - gpio: gpio number.
+ - extcon-gpio,irq-flags: IRQ flags for GPIO.
+ - extcon-gpio,debounce: Debounce time in ms.
+ - extcon-gpio,connection-state-low: boolean, Connection state with
+gpio state. True if gpio low means connected.
+
+extcon-gpio {
+   compatible = "extcon-gpio";
+extcon-gpio,name = "VBUS";
+   gpio = < 20 0>;
+   extcon-gpio,cable-names = ;
+};
-- 
2.1.4