Messages in this thread | | | Date | Mon, 15 Feb 2016 19:25:23 +0100 | Subject | Re: [RFC PATCH] GPIO/ACPI: DesignWare: Add GPIO-signaled ACPI events support for power button | From | Linus Walleij <> |
| |
Mika can you help out looking at this patch. Tell me if you need a copy of the whole patch, I'm not smart with ACPI.
On Fri, Feb 5, 2016 at 7:25 AM, qiujiang <qiujiang@huawei.com> wrote:
> This patch modifies the DesignWare GPIO controller driver to > support the GPIO-signaled ACPI Events. This is used for power > button function on ARM server. > > To make it work, the _AEI and _EVT object must be defined in > the corresponding GPIO driver's dsdt table in UEFI. At the same > time, ACPI daemon component is also necessary. > > Signed-off-by: qiujiang <qiujiang@huawei.com>
(...) > --- a/drivers/gpio/gpio-dwapb.c > +++ b/drivers/gpio/gpio-dwapb.c > @@ -23,6 +23,11 @@ > #include <linux/spinlock.h> > #include <linux/platform_data/gpio-dwapb.h> > #include <linux/slab.h> > +#include <linux/acpi.h> > +#include <linux/gpio.h>
You should only need <linux/driver.h>
> +#include "gpiolib.h"
I guess this is for some acpi_gpiochip* functions that ACPI GPIO drivers need like this:
> + /* Add GPIO-signaled ACPI event support */ > + if (pp->irq) > + acpi_gpiochip_request_interrupts(&(port->bgc.gc));
Hm, maybe these should be in "gpiolib-acpi.h" or so.
Overall the patch looks sane to me, but I need some ACPI person to tell.
Yours, Linus Walleij
| |