soc: ti: smartreflex: Use IRQF_NO_AUTOEN flag in request_irq()

If request_irq() fails in sr_late_init(), there is no need to enable
the irq, and if it succeeds, disable_irq() after request_irq() still has
a time gap in which interrupts can come.

request_irq() with IRQF_NO_AUTOEN flag will disable IRQ auto-enable when
request IRQ.

Fixes: 1279ba5 ("OMAP3+: SR: disable interrupt by default")
Signed-off-by: Jinjie Ruan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kevin Hilman <[email protected]>

Author: Jinjie Ruan

drivers/soc/ti/smartreflex.c

@@ -202,10 +202,10 @@ static int sr_late_init(struct omap_sr *sr_info)
 
 	if (sr_class->notify && sr_class->notify_flags && sr_info->irq) {
 		ret = devm_request_irq(&sr_info->pdev->dev, sr_info->irq,
-				       sr_interrupt, 0, sr_info->name, sr_info);
+				       sr_interrupt, IRQF_NO_AUTOEN,
+				       sr_info->name, sr_info);
 		if (ret)
 			goto error;
-		disable_irq(sr_info->irq);
 	}
 
 	return ret;