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

Markus Elfring Markus.Elfring at web.de
Fri Jul 12 09:55:24 UTC 2024


…
> +++ 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 at linutronix.de
…
> +	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


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