Re: [PATCH 1/2] Input: omap4-keypad - Configure interrupt as level

From: Dmitry Torokhov
Date: Fri Mar 06 2020 - 13:58:21 EST


Hi Tony,

On Wed, Feb 26, 2020 at 06:04:06PM -0800, Tony Lindgren wrote:
> The interrupt should be level high for SoC internal devices.
> Otherwise interrupts may not be seen after a wake-up event.
>
> Cc: Arthur Demchenkov <spinal.by@xxxxxxxxx>
> Cc: Merlijn Wajer <merlijn@xxxxxxxxxx>
> Cc: Pavel Machek <pavel@xxxxxx>
> Cc: Sebastian Reichel <sre@xxxxxxxxxx>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> ---
> drivers/input/keyboard/omap4-keypad.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
> --- a/drivers/input/keyboard/omap4-keypad.c
> +++ b/drivers/input/keyboard/omap4-keypad.c
> @@ -344,7 +344,8 @@ static int omap4_keypad_probe(struct platform_device *pdev)
> }
>
> error = request_threaded_irq(keypad_data->irq, omap4_keypad_irq_handler,
> - omap4_keypad_irq_thread_fn, IRQF_ONESHOT,
> + omap4_keypad_irq_thread_fn,
> + IRQF_TRIGGER_HIGH | IRQF_ONESHOT,

Can't we rely on DT/platform to configure this properly?

Thanks.

--
Dmitry