[RFC PATCH 2/3] pinctrl: at91: add support for generic pinconf
swarren at wwwdotorg.org
Mon Aug 26 12:53:54 EDT 2013
On 08/24/2013 03:37 PM, Boris BREZILLON wrote:
> Add support for generic pin configuration to pinctrl-at91 driver.
> diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
> Required properties for iomux controller:
> -- compatible: "atmel,at91rm9200-pinctrl"
> +- compatible: "atmel,at91rm9200-pinctrl" or "atmel,at91sam9x5-pinctrl".
You seem to also be adding a second chip name to the list here, which is
more than the patch subject/description imply you're doing...
> + Add "generic-pinconf" to the compatible string list to use the generic pin
> + configuration syntax.
"generic-pinconf" is too generic of a compatible value for this binding
Instead, I think you want to either:
Use compatible="atmel,at91rm9200-pinctrl" for the old binding,
use compatible="atmel,at91rm9200-pinctrl-generic" for the new binding
Define Boolean property atmel,generic-pinconf (perhaps a better name
could be chosen?). If it's not present, parse the node assuming the old
binding. If it is present, parse the node assuming the new binding.
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