platform/surface: aggregator: move to use request_irq by IRQF_NO_AUTOEN flag

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 because of requesting.

this patch is made base on "add IRQF_NO_AUTOEN for request_irq" which
is being merged: https://lore.kernel.org/patchwork/patch/1388765/

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/1617778852-26492-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/surface/aggregator/controller.c b/drivers/platform/surface/aggregator/controller.c
index aa6f37b..00e3828 100644 (file)
--- a/drivers/platform/surface/aggregator/controller.c
+++ b/drivers/platform/surface/aggregator/controller.c
@@ -2483,7 +2483,8 @@ int ssam_irq_setup(struct ssam_controller *ctrl)
         * interrupt, and let the SAM resume callback during the controller
         * resume process clear it.
         */
-       const int irqf = IRQF_SHARED | IRQF_ONESHOT | IRQF_TRIGGER_RISING;
+       const int irqf = IRQF_SHARED | IRQF_ONESHOT |
+                        IRQF_TRIGGER_RISING | IRQF_NO_AUTOEN;
 
        gpiod = gpiod_get(dev, "ssam_wakeup-int", GPIOD_ASIS);
        if (IS_ERR(gpiod))
@@ -2501,7 +2502,6 @@ int ssam_irq_setup(struct ssam_controller *ctrl)
                return status;
 
        ctrl->irq.num = irq;
-       disable_irq(ctrl->irq.num);
        return 0;
 }