On Wed, Nov 16, 2022 at 03:44:31PM +0800, Clark Wang wrote:
> The i2c irq is masked when user starts an i2c transfer process
> during noirq suspend stage. As a result, i2c transfer fails.
> To solve the problem, IRQF_NO_SUSPEND is added to i2c bus.
>
> Signed-off-by: Clark Wang <xiaoning.wang@xxxxxxx>
Acked-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> ---
> drivers/i2c/busses/i2c-imx.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
> index 1ce0cf7a323f..ba49b2f7a1d1 100644
> --- a/drivers/i2c/busses/i2c-imx.c
> +++ b/drivers/i2c/busses/i2c-imx.c
> @@ -1510,7 +1510,8 @@ static int i2c_imx_probe(struct platform_device *pdev)
> goto rpm_disable;
>
> /* Request IRQ */
> - ret = request_threaded_irq(irq, i2c_imx_isr, NULL, IRQF_SHARED,
> + ret = request_threaded_irq(irq, i2c_imx_isr, NULL,
> + IRQF_SHARED | IRQF_NO_SUSPEND,
> pdev->name, i2c_imx);
> if (ret) {
> dev_err(&pdev->dev, "can't claim irq %d\n", irq);
> --
> 2.34.1
>
>
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
