linux/drivers/gpu/drm/loongson/lsdc_irq.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2023 Loongson Technology Corporation Limited
 */

#include <drm/drm_vblank.h>

#include "lsdc_irq.h"

/*
 * For the DC in LS7A2000, clearing interrupt status is achieved by
 * write "1" to LSDC_INT_REG.
 *
 * For the DC in LS7A1000, clear interrupt status is achieved by write "0"
 * to LSDC_INT_REG.
 *
 * Two different hardware engineers modify it as their will.
 */

irqreturn_t ls7a2000_dc_irq_handler(int irq, void *arg)
{ … }

/* For the DC in LS7A1000 and LS2K1000 */
irqreturn_t ls7a1000_dc_irq_handler(int irq, void *arg)
{ … }