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Date: Thu, 10 Apr 2014 12:46:53 +0100 From: One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> To: Mauro Carvalho Chehab <m.chehab@...sung.com> Cc: shuah.kh@...sung.com, Greg KH <gregkh@...uxfoundation.org>, tj@...nel.org, rafael.j.wysocki@...el.com, linux@...ck-us.net, toshi.kani@...com, linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, shuahkhan@...il.com Subject: Re: [RFC PATCH 0/2] managed token devres interfaces > For example, some devices provide standard USB Audio Class, handled by > snd-usb-audio for the audio stream, while the video stream is handled > via a separate driver, like some em28xx devices. Which is what mfd is designed to handle. > There are even more complex devices that provide 3G modem, storage > and digital TV, whose USB ID changes when either the 3G modem starts > or when the digital TV firmware is loaded. But presumably you only have one driver at a time then ? > So, we need to find a way to lock some hardware resources among > different subsystems that don't share anything in common. Not sure if > mfd has the same type of problem of a non-mfd driver using another > function of the same device The MFD device provides subdevices for all the functions. That is the whole underlying concept. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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