[PATCH v11 3/9] drm/display: Add Type-C switch helpers

[Jani Nikula]

On Mon, 06 Feb 2023, Andy Shevchenko <andriy.shevchenko at linux.intel.com> wrote:
> On Sat, Feb 04, 2023 at 09:30:34PM +0800, Pin-yen Lin wrote:
>> Add helpers to register and unregister Type-C "switches" for bridges
>> capable of switching their output between two downstream devices.
>> 
>> The helper registers USB Type-C mode switches when the "mode-switch"
>> and the "reg" properties are available in Device Tree.
>
> ...
>
>> +	fwnode_for_each_child_node(port, sw) {
>> +		if (fwnode_property_present(sw, "mode-switch"))
>
> This idiom is being used at least twice (in this code, haven't checked the rest
> of the patches, though), perhaps
>
> #define fwnode_for_each_typec_mode_switch(port, sw)			\
> 	fwnode_for_each_child_node(port, sw)				\
> 		if (!fwnode_property_present(sw, "mode-switch")) {} else
>
> ?

See for_each_if() in drm_util.h.


BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center