Re: [PATCH] Skip deferred request irqs for devices known to fail

From: Andy Shevchenko
Date: Fri Mar 22 2019 - 09:01:34 EST


On Fri, Mar 22, 2019 at 10:05:15PM +1100, Ian W MORRISON wrote:

Thanks for the patch, my comments below.

> Patch ca876c7483b6 "gpiolib-acpi: make sure we trigger edge events at
> least once on boot" causes the MINIX family of mini PCs to fail to boot
> resulting in a "black screen".

> This patch excludes MINIX devices from executing this trigger in order
> to successfully boot.

Hmm... Feels like this is symptomatic healing.
Hans, do you have anything in mind about this case?

> #include <linux/interrupt.h>
> #include <linux/mutex.h>
> #include <linux/pinctrl/pinctrl.h>
> +#include <linux/dmi.h>

This should be in order.

> /* Run deferred acpi_gpiochip_request_irqs() */
> +/* but exclude devices known to fail */

/*
* This should be done in the similar style
* as for multi-line comments. Like this one.
*/

> + dmi_id = dmi_first_match(skip_deferred_request_irqs_table);
> +

Redundant blank line.

> + if (! dmi_id) {

No space here, however, better to write positive conditional.

--
With Best Regards,
Andy Shevchenko