Re: [PATCH v8 1/6] Extcon (external connector): import Android's switch class and modify.

[Mark Brown <broonie@opensource.wolfsonmicro.com>]

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On Thu, Apr 19, 2012 at 11:41:33AM +0900, MyungJoo Ham wrote:
> External connector class (extcon) is based on and an extension of
> Android kernel's switch class located at linux/drivers/switch/.

Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

> +comment "Extcon Class Configuration"
> +
> +config EXTCON_ANDROID_COMPATIBLE
> +	bool "Class name uses 'switch' to be compatible with Android kernel"
> +	depends on ANDROID
> +	help
> +	  The class name of extcon device drivers are set 'switch' in order
> +	  to be compatible with Android kernel switch framework. With this
> +	  option enabled, Android userspace platform may use extcon device
> +	  drivers as if they are switch device drivers.

Though I think this is out of date now?  Not a big deal and could be
fixed up later.

> +#if defined(CONFIG_ANDROID) && !defined(CONFIG_ANDROID_SWITCH)
> +		switch_class = class_compat_register("switch");
> +		if (WARN(!switch_class, "cannot allocate"))
> +			return -ENOMEM;
> +#endif /* CONFIG_ANDROID && !defined(CONFIG_ANDROID_SWITCH) */

This does the above but differently.

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