Re: [PATCHv2 1/3] dt-bindings: misc: achc: Make ezport distinguishable

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On Tue, Mar 27, 2018 at 03:52:57PM +0200, Sebastian Reichel wrote:
> This updates the GE ACHC binding, so that different compatible
> strings are used for the programming interface, which is the
> ezport interface from NXP MK20FN1M0VMD12 and the microcontroller's
> normal SPI interface.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/misc/ge-achc.txt | 19 ++++++++++++++++---
>  1 file changed, 16 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/misc/ge-achc.txt b/Documentation/devicetree/bindings/misc/ge-achc.txt
> index 77df94d7a32f..6c6bd6568504 100644
> --- a/Documentation/devicetree/bindings/misc/ge-achc.txt
> +++ b/Documentation/devicetree/bindings/misc/ge-achc.txt
> @@ -7,7 +7,13 @@ Note: This device does not expose the peripherals as USB devices.
>  
>  Required properties:
>  
> -- compatible : Should be "ge,achc"
> +- compatible : Should be
> +  "ge,achc" (normal interface)
> +  "ge,achc-ezport" (flashing interface)
> +
> +Required properties (flashing interface only):
> +
> +- reset-gpios: GPIO Specifier for the reset GPIO

Does the reset only affect the flashing interface and are the data pins 
shared? If not for both, then I think the correct thing to do here is 
just extend reg to support multiple values to represent multiple chip 
selects.

Rob
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