MLK-13912-2 gpio: gpio-vf610: mask interrupt on suspend for imx7ulp

At imx7ulp, any interrupts can wake system up from suspend at "standby"
mode, so we mask interrupt for gpio by default. The user can still
enable wakeup through /sys entry.

Signed-off-by: Peter Chen <peter.chen@nxp.com>

diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c
index f409c02..68567ca 100644 (file)
--- a/drivers/gpio/gpio-vf610.c
+++ b/drivers/gpio/gpio-vf610.c
@@ -280,6 +280,14 @@ static int vf610_gpio_probe(struct platform_device *pdev)
        /* Clear the interrupt status register for all GPIO's */
        vf610_gpio_writel(~0, port->base + PORT_ISFR);
 
+       /*
+        * At imx7ulp, any interrupts can wake system up from "standby" mode,
+        * so, mask interrupt at suspend mode by default, and the user
+        * can still enable wakeup through /sys entry.
+        */
+       if (of_machine_is_compatible("fsl,imx7ulp"))
+               vf610_gpio_irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND;
+
        ret = gpiochip_irqchip_add(gc, &vf610_gpio_irq_chip, 0,
                                   handle_edge_irq, IRQ_TYPE_NONE);
        if (ret) {