Re: [PATCH RESEND v2] gpio: omap: Add omap_gpio_disable/enable_irq calls

[Judith Mendez]

Hi Kevin,

On 11/1/24 9:29 AM, Kevin Hilman wrote:
> Hi Judith,
>
> Judith Mendez <jm@xxxxxx> writes:
>
> > From: Bin Liu <b-liu@xxxxxx>
> >
> > Add omap_gpio_disable_irq and omap_gpio_enable_irq
> > calls in gpio-omap.
> >
> > Currently, kernel cannot disable gpio interrupts in
> > case of a irq storm, so add omap_gpio_disable/enable_irq
> > so that interrupts can be disabled/enabled.
> >
> > Signed-off-by: Bin Liu <b-liu@xxxxxx>
> > [Judith: Add commit message]
> > Signed-off-by: Judith Mendez <jm@xxxxxx>
>
> Thanks for this patch.  Can you give a bit more context on the
> problem(s) this solves and on which SoCs/platforms it was
> developed/validated?

Sorry for the late response. Patch was tested/developed on am335x
device BBB, If you feed a PWM signal at 200KHz frequency to
GPIO, and execute gpiomon 0 12 &, Linux will be unresponsive
even after CTRL+C without these 2 functions in this patch. Once
this patch is applied, you can get console back after hitting
CTRL+C and then proceed to kill gpiomon.

~ Judith