On Sat, May 30, 2015 at 10:29 PM, Grant Likely <grant.likely@xxxxxxxxxxxx> wrote: > On Mon, Jul 7, 2014 at 6:31 PM, Greg Kroah-Hartman > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: >>> However is the MFD cell approach acceptable? >> >> Yes it is. > > Going back to this old conversation... Actually, I disagree. There is > absolutely no need to go the MFD approach for this driver. That just > adds layers of abstraction for no purpose. GPIOLIB is an interface, > and it is completely fine for a driver to hook up to the GPIOLIB > interface at the same time as exposing a serial port. MFD doesn't buy > the driver anything useful here. What is buys is centralizing code into the proper drivers/gpio folder of the kernel. So more of a maintenance point than a mechanics/performance point. We do have GPIO drivers scattered all over the kernel so one more or less wouldn't matter so much... Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
