Commit a3a06ea1 authored by Jeff LaBundy's avatar Jeff LaBundy Committed by Lee Jones
Browse files

mfd: iqs62x: Increase interrupt handler return delay 



The time the device takes to deassert its RDY output following an
I2C stop condition scales with the core clock frequency.

To prevent level-triggered interrupts from being reasserted after
the interrupt handler returns, increase the time before returning
to account for the worst-case delay (~90 us) plus margin.

Signed-off-by: default avatarJeff LaBundy <jeff@labundy.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent f0c71126

drivers/mfd/iqs62x.c

+1 −1
Original line number Diff line number Diff line
@@ -533,7 +533,7 @@ static irqreturn_t iqs62x_irq(int irq, void *context) 
	 * ensure the device's RDY output has been deasserted by the time the

	 * interrupt handler returns.

	 */

	usleep_range(50, 100);

	usleep_range(150, 200);



	return IRQ_HANDLED;

}