[v5,1/5] media: dt-bindings: media: i2c: Deprecate usage of the clock-frequency property

OV5645 sensor supports input clock frequency ranging from 6MHz to 27MHz
but the driver strictly expects this to be 24MHz (with tolerance of 1%)
with this restrictions let the driver enforce the clock frequency
internally to 24MHz rather then being passed as dt-property.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 Documentation/devicetree/bindings/media/i2c/ov5645.txt | 2 --
 1 file changed, 2 deletions(-)

Hi Prabhakar,

Thank you for the patch.

On Mon, Apr 06, 2020 at 05:42:37PM +0100, Lad Prabhakar wrote:
> OV5645 sensor supports input clock frequency ranging from 6MHz to 27MHz
> but the driver strictly expects this to be 24MHz (with tolerance of 1%)
> with this restrictions let the driver enforce the clock frequency

Maybe s/with/With/ ?

> internally to 24MHz rather then being passed as dt-property.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  Documentation/devicetree/bindings/media/i2c/ov5645.txt | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ov5645.txt b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> index 72ad992f77be..a55bb728ea48 100644
> --- a/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> +++ b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> @@ -8,7 +8,6 @@ Required Properties:
>  - compatible: Value should be "ovti,ov5645".
>  - clocks: Reference to the xclk clock.
>  - clock-names: Should be "xclk".
> -- clock-frequency: Frequency of the xclk clock.
>  - enable-gpios: Chip enable GPIO. Polarity is GPIO_ACTIVE_HIGH. This corresponds
>    to the hardware pin PWDNB which is physically active low.
>  - reset-gpios: Chip reset GPIO. Polarity is GPIO_ACTIVE_LOW. This corresponds to
> @@ -37,7 +36,6 @@ Example:
>  
>  			clocks = <&clks 200>;
>  			clock-names = "xclk";
> -			clock-frequency = <24000000>;
>  
>  			vdddo-supply = <&camera_dovdd_1v8>;
>  			vdda-supply = <&camera_avdd_2v8>;

On Mon, Apr 6, 2020 at 6:43 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> OV5645 sensor supports input clock frequency ranging from 6MHz to 27MHz
> but the driver strictly expects this to be 24MHz (with tolerance of 1%)
> with this restrictions let the driver enforce the clock frequency
> internally to 24MHz rather then being passed as dt-property.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

Hi Laurent,

Thank you for the review.

On Mon, Apr 6, 2020 at 6:30 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Prabhakar,
>
> Thank you for the patch.
>
> On Mon, Apr 06, 2020 at 05:42:37PM +0100, Lad Prabhakar wrote:
> > OV5645 sensor supports input clock frequency ranging from 6MHz to 27MHz
> > but the driver strictly expects this to be 24MHz (with tolerance of 1%)
> > with this restrictions let the driver enforce the clock frequency
>
> Maybe s/with/With/ ?
>
OK will fix it next version.

Cheers,
--Prabhakar

> > internally to 24MHz rather then being passed as dt-property.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>
> > ---
> >  Documentation/devicetree/bindings/media/i2c/ov5645.txt | 2 --
> >  1 file changed, 2 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/media/i2c/ov5645.txt b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> > index 72ad992f77be..a55bb728ea48 100644
> > --- a/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> > +++ b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
> > @@ -8,7 +8,6 @@ Required Properties:
> >  - compatible: Value should be "ovti,ov5645".
> >  - clocks: Reference to the xclk clock.
> >  - clock-names: Should be "xclk".
> > -- clock-frequency: Frequency of the xclk clock.
> >  - enable-gpios: Chip enable GPIO. Polarity is GPIO_ACTIVE_HIGH. This corresponds
> >    to the hardware pin PWDNB which is physically active low.
> >  - reset-gpios: Chip reset GPIO. Polarity is GPIO_ACTIVE_LOW. This corresponds to
> > @@ -37,7 +36,6 @@ Example:
> >
> >                       clocks = <&clks 200>;
> >                       clock-names = "xclk";
> > -                     clock-frequency = <24000000>;
> >
> >                       vdddo-supply = <&camera_dovdd_1v8>;
> >                       vdda-supply = <&camera_avdd_2v8>;
>
> --
> Regards,
>
> Laurent Pinchart

On Mon,  6 Apr 2020 17:42:37 +0100, Lad Prabhakar wrote:
> OV5645 sensor supports input clock frequency ranging from 6MHz to 27MHz
> but the driver strictly expects this to be 24MHz (with tolerance of 1%)
> with this restrictions let the driver enforce the clock frequency
> internally to 24MHz rather then being passed as dt-property.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
>  Documentation/devicetree/bindings/media/i2c/ov5645.txt | 2 --
>  1 file changed, 2 deletions(-)
> 

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