Re: [PATCH v2 08/17] gpio: locomo: implement per-pin irq handling

On Tue, Apr 28, 2015 at 1:55 AM, Dmitry Eremin-Solenikov
[off-list ref] wrote:

LoCoMo has a possibility to generate per-GPIO edge irqs. Support for
that was there in old locomo driver, got 'cleaned up' during old driver
IRQ cascading cleanup and is now reimplemented. It is expected that
SL-5500 (collie) will use locomo gpio irqs for mmc detection irq.

Signed-off-by: Dmitry Eremin-Solenikov <redacted>

Reviewed-by: Linus Walleij <redacted>

Assume this will also go through MFD.

+       irq_set_chained_handler(lg->irq, NULL);
+       irq_set_handler_data(lg->irq, NULL);

Why is this needed? If the GPIOLIB_IRQCHIP code in
gpiolib.c is not doing this then maybe it's the core code that
needs fixing rather than having this in the driver.

Yours,
Linus Walleij