Hi Carlos, Am 29.08.24 um 11:37 schrieb carlos.song@xxxxxxx:
From: Carlos Song <carlos.song@xxxxxxx> Set IRQF_NO_SUSPEND flag when request_irq(). Some devices such as extend GPIO will need i2c transfer during the entire system suspend and resume period so keep it enabled.
do you mean GPIO expander which are connected to I2C? Do the mentioned expander have a dedicated IRQ line or does the host needs to poll I2C? Best regards
Signed-off-by: Carlos Song <carlos.song@xxxxxxx> Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- drivers/i2c/busses/i2c-imx-lpi2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-imx-lpi2c.c index c8f3dadfb36e..23f83f10d5f6 100644 --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -1309,7 +1309,7 @@ static int lpi2c_imx_probe(struct platform_device *pdev) if (ret) lpi2c_imx->bitrate = I2C_MAX_STANDARD_MODE_FREQ; - ret = devm_request_irq(&pdev->dev, irq, lpi2c_imx_isr, 0, + ret = devm_request_irq(&pdev->dev, irq, lpi2c_imx_isr, IRQF_NO_SUSPEND, pdev->name, lpi2c_imx); if (ret) return dev_err_probe(&pdev->dev, ret, "can't claim irq %d\n", irq);
