Re: [PATCH v2 09/16] drm/imx: Add i.MX8qxp Display Controller KMS

From: Markus Elfring
Date: Fri Jul 12 2024 - 05:56:31 EST



> +++ b/drivers/gpu/drm/imx/dc/dc-crtc.c
> @@ -0,0 +1,578 @@

> +static void dc_crtc_queue_state_event(struct drm_crtc_state *crtc_state)
> +{tglx@xxxxxxxxxxxxx

> + spin_lock_irq(&crtc->dev->event_lock);
> + if (crtc_state->event) {

> + }
> + spin_unlock_irq(&crtc->dev->event_lock);
> +}


Under which circumstances would you become interested to apply a statement
like “guard(spinlock_irq)(&crtc->dev->event_lock);”?
https://elixir.bootlin.com/linux/v6.10-rc7/source/include/linux/spinlock.h#L567

Regards,
Markus