static irqreturn_t rotator_irq_handler(int irq, void *arg)
{
struct rot_context *rot = arg;
struct exynos_drm_ippdrv *ippdrv = &rot->ippdrv;
struct drm_exynos_ipp_cmd_node *c_node = ippdrv->c_node;
struct drm_exynos_ipp_event_work *event_work = c_node->event_work;
enum rot_irq_status irq_status;
u32 val;
/* Get execution result */
irq_status = rotator_reg_get_irq_status(rot);
/* clear status */
val = rot_read(ROT_STATUS);
val |= ROT_STATUS_IRQ_PENDING((u32)irq_status);
rot_write(val, ROT_STATUS);
if (irq_status == ROT_IRQ_STATUS_COMPLETE) {
event_work->ippdrv = ippdrv;
event_work->buf_id[EXYNOS_DRM_OPS_DST] =
rot->cur_buf_id[EXYNOS_DRM_OPS_DST];
queue_work(ippdrv->event_workq, &event_work->work);
} else {
DRM_ERROR("the SFR is set illegally\n");
}
return IRQ_HANDLED;
}
static void rotator_reg_set_irq_status_clear(struct rot_context *rot,
enum rot_irq_status status)
{
u32 value = readl(rot->regs + ROT_STATUS);
value |= ROT_STATUS_IRQ_PENDING((u32)status);
writel(value, rot->regs + ROT_STATUS);
}